@@ -1,28 +1,27 @@
11{-# LANGUAGE OverloadedStrings #-}
22module Reporting.Exit
3− ( Exit(..)
3+ ( Init(..), initToReport
4+ , Diff(..), diffToReport
5+ , Make(..), makeToReport
6+ , Bump(..), bumpToReport
7+ , Repl(..), replToReport
8+ , Publish(..), publishToReport
9+ , Install(..), installToReport
10+ , Reactor(..), reactorToReport
11+ , newPackageOverview
412 --
5− , Init(..)
6− , initToReport
7− --
8− , Diff(..)
9− , diffToReport
10− --
11− , Install(..)
12− , installToReport
13− --
14− , Details(..)
13+ , Solver(..)
14+ , Outline(..)
1515 , OutlineProblem(..)
16− , OutlineStructureProblem(..)
17− , RegistryProblem(..)
16+ , Details(..)
17+ , DetailsBadDep(..)
1818 , PackageProblem(..)
19− --
20− , Make(..)
19+ , RegistryProblem(..)
2120 , BuildProblem(..)
2221 , BuildProjectProblem(..)
23− , makeToReport
24− --
2522 , DocsProblem(..)
23+ , Generate(..)
24+ --
2625 , toString
2726 , toStderr
2827 , toJson
@@ -30,59 +29,56 @@ module Reporting.Exit
3029 where
3130
3231
32+import qualified Data.ByteString as BS
33+import qualified Data.ByteString.UTF8 as BS_UTF8
3334import qualified Data.List as List
34−import qualified Data.Utf8 as Utf8
35+import qualified Data.Map as Map
36+import qualified Data.Name as N
37+import qualified Data.NonEmptyList as NE
38+import qualified Network.HTTP.Client as HTTP
39+import qualified Network.HTTP.Types.Header as HTTP
40+import qualified Network.HTTP.Types.Status as HTTP
41+import qualified System.FilePath as FP
42+import System.FilePath ((</>), (<.>))
3543
3644import qualified Elm.Constraint as C
3745import qualified Elm.Magnitude as M
3846import qualified Elm.ModuleName as ModuleName
3947import qualified Elm.Package as Pkg
4048import qualified Elm.Version as V
49+import qualified File
4150import qualified Http
51+import qualified Json.Decode as Decode
4252import qualified Json.Encode as Encode
53+import qualified Json.String as Json
54+import Parse.Primitives (Row, Col)
55+import qualified Reporting.Annotation as A
4356import Reporting.Doc ((<>))
4457import qualified Reporting.Doc as D
58+import qualified Reporting.Error.Import as Import
4559import qualified Reporting.Error.Json as Json
4660import qualified Reporting.Exit.Help as Help
47−import qualified Reporting.Problem as Problem
61+import qualified Reporting.Error as Error
62+import qualified Reporting.Render.Code as Code
4863
4964
5065
51−-- ALL POSSIBLE ERRORS
66+-- RENDERERS
5267
5368
54−data Exit
55− -- bump
56− = BumpApplication
57− | BumpUnexpectedVersion V.Version [V.Version]
58− | BumpMustHaveLatestRegistry RegistryProblem
59− | BumpCannotFindDocs Pkg.Name V.Version DocsProblem
60− -- publish
61− | PublishMustHaveLatestRegistry RegistryProblem
62− | PublishApplication
63− | PublishNotInitialVersion V.Version
64− | PublishAlreadyPublished V.Version
65− | PublishInvalidBump V.Version V.Version
66− | PublishBadBump V.Version V.Version M.Magnitude V.Version M.Magnitude
67− | PublishNoSummary
68− | PublishNoExposed
69− | PublishNoReadme
70− | PublishShortReadme
71− | PublishNoLicense
72− | PublishCannotGetTag Http.Error
73− | PublishCannotGetZip Http.Error
74− | PublishCannotDecodeZip
75− | PublishCannotGetDocs DocsProblem
76− | PublishCannotRegister Http.Error
77− | PublishMissingTag V.Version
78− | PublishNoGit
79− | PublishLocalChanges V.Version
69+toString :: Help.Report -> String
70+toString report =
71+ Help.toString (Help.reportToDoc report)
8072
8173
82−data DocsProblem
83− = DP_Http Http.Error
84− | DP_Data
85− | DP_Cache
74+toStderr :: Help.Report -> IO ()
75+toStderr report =
76+ Help.toStderr (Help.reportToDoc report)
77+
78+
79+toJson :: Help.Report -> Encode.Value
80+toJson report =
81+ Help.reportToJson report
8682
8783
8884
@@ -91,6 +87,8 @@ data DocsProblem
9187
9288data Init
9389 = InitNoSolution [Pkg.Name]
90+ | InitNoOfflineSolution [Pkg.Name]
91+ | InitSolverProblem Solver
9492 | InitAlreadyExists
9593 | InitRegistryProblem RegistryProblem
9694
@@ -109,6 +107,21 @@ initToReport exit =
109107 \ what is going on!"
110108 ]
111109
110+ InitNoOfflineSolution pkgs ->
111+ Help.report "NO OFFLINE SOLUTION" Nothing
112+ "I tried to create an elm.json with the following direct dependencies:"
113+ [ D.indent 4 $ D.vcat $
114+ map (D.dullyellow . D.fromChars . Pkg.toChars) pkgs
115+ , D.reflow $
116+ "I could not find compatible versions though, but that may be because I could not\
117+ \ connect to https://package.elm-lang.org to get the latest list of packages. Are\
118+ \ you able to connect to the internet? Please ask around one of the community\
119+ \ forums at https://elm-lang.org/community for help!"
120+ ]
121+
122+ InitSolverProblem solver ->
123+ toSolverReport solver
124+
112125 InitAlreadyExists ->
113126 Help.report "EXISTING PROJECT" Nothing
114127 "You already have an elm.json file, so there is nothing for me to initialize!"
@@ -118,8 +131,9 @@ initToReport exit =
118131 ]
119132 ]
120133
121− InitRegistryProblem _ ->
122− error "TODO InitRegistryProblem"
134+ InitRegistryProblem problem ->
135+ toRegistryProblemReport "PROBLEM LOADING PACKAGE LIST" problem $
136+ "I need the list of published packages before I can start initializing projects"
123137
124138
125139
@@ -127,22 +141,48 @@ initToReport exit =
127141
128142
129143data Diff
130− = DiffApplication
144+ = DiffNoOutline
145+ | DiffBadOutline Outline
146+ | DiffApplication
147+ | DiffNoExposed
131148 | DiffUnpublished
132149 | DiffUnknownPackage Pkg.Name [Pkg.Name]
133150 | DiffUnknownVersion Pkg.Name V.Version [V.Version]
134− | DiffCannotFindDocs DocsProblem
151+ | DiffDocsProblem V.Version DocsProblem
135152 | DiffMustHaveLatestRegistry RegistryProblem
153+ | DiffBadDetails Details
154+ | DiffBadBuild BuildProblem
136155
137156
138157diffToReport :: Diff -> Help.Report
139158diffToReport diff =
140159 case diff of
160+ DiffNoOutline ->
161+ Help.report "DIFF WHAT?" Nothing
162+ "I cannot find an elm.json so I am not sure what you want me to diff.\
163+ \ Normally you run `elm diff` from within a project!"
164+ [ D.reflow $ "If you are just curious to see a diff, try running this command:"
165+ , D.indent 4 $ D.green $ "elm diff elm/http 1.0.0 2.0.0"
166+ ]
167+
168+ DiffBadOutline outline ->
169+ toOutlineReport outline
170+
141171 DiffApplication ->
142− Help.report "CANNOT DIFF APPLICATIONS" Nothing
143− "I cannot perform diffs on applications, only packages! If you are\
144− \ just curious to see a diff, try running this command:"
145− [ D.indent 4 $ D.green $ "elm diff elm/html 5.1.1 6.0.0"
172+ Help.report "CANNOT DIFF APPLICATIONS" (Just "elm.json")
173+ "Your elm.json says this project is an application, but `elm diff` only works\
174+ \ with packages. That way there are previously published versions of the API to\
175+ \ diff against!"
176+ [ D.reflow $ "If you are just curious to see a diff, try running this command:"
177+ , D.indent 4 $ D.dullyellow $ "elm diff elm/json 1.0.0 1.1.2"
178+ ]
179+
180+ DiffNoExposed ->
181+ Help.report "NO EXPOSED MODULES" (Just "elm.json")
182+ "Your elm.json has no \"exposed-modules\" which means there is no public API at\
183+ \ all right now! What am I supposed to diff?"
184+ [ D.reflow $
185+ "Try adding some modules back to the \"exposed-modules\" field."
146186 ]
147187
148188 DiffUnpublished ->
@@ -154,16 +194,16 @@ diffToReport diff =
154194 Help.report "UNKNOWN PACKAGE" Nothing
155195 ( "I cannot find a package called:"
156196 )
157− [ D.indent 4 $ D.red $ D.fromUtf8 $ Pkg.toString pkg
197+ [ D.indent 4 $ D.red $ D.fromChars $ Pkg.toChars pkg
158198 , "Maybe you want one of these instead?"
159− , D.indent 4 $ D.dullyellow $ D.vcat $ map (D.fromUtf8 . Pkg.toString) suggestions
199+ , D.indent 4 $ D.dullyellow $ D.vcat $ map (D.fromChars . Pkg.toChars) suggestions
160200 , "But check <https://package.elm-lang.org> to see all possibilities!"
161201 ]
162202
163203 DiffUnknownVersion _pkg vsn realVersions ->
164204 Help.docReport "UNKNOWN VERSION" Nothing
165205 ( D.fillSep $
166− [ "Version", D.red (D.fromUtf8 (V.toString vsn))
206+ [ "Version", D.red (D.fromVersion vsn)
167207 , "has", "never", "been", "published,", "so", "I"
168208 , "cannot", "diff", "against", "it."
169209 ]
@@ -172,191 +212,57 @@ diffToReport diff =
172212 , D.indent 4 $ D.dullyellow $ D.vcat $
173213 let
174214 sameMajor v1 v2 = V._major v1 == V._major v2
175− mkRow vsns = D.hsep $ map (D.fromUtf8 . V.toString) vsns
215+ mkRow vsns = D.hsep $ map D.fromVersion vsns
176216 in
177217 map mkRow $ List.groupBy sameMajor (List.sort realVersions)
178218 , "Want one of those instead?"
179219 ]
180220
181− DiffCannotFindDocs problem ->
182− error "TODO DiffCannotFindDocs" problem
221+ DiffDocsProblem version problem ->
222+ toDocsProblemReport problem $
223+ "I need the docs for " ++ V.toChars version ++ " to compute this diff"
183224
184225 DiffMustHaveLatestRegistry problem ->
185− error "TODO DiffMustHaveLatestRegistry" problem
186−
187−
188−
189−-- INSTALL
190−
191−
192−data Install
193− = InstallNoProject
194− | InstallNoArgs FilePath
195− | InstallNoSolution [Pkg.Name]
196−
197−
198−installToReport :: Install -> Help.Report
199−installToReport exit =
200− case exit of
201− InstallNoProject ->
202− Help.report "NEW PROJECT?" Nothing
203− (error "TODO InstallNoProject")
204− (error "TODO InstallNoProject details")
205−
206− InstallNoArgs elmHome ->
207− Help.report "INSTALL WHAT?" Nothing
208− "I am expecting commands like:"
209− [ D.green $ D.indent 4 $ D.vcat $
210− [ "elm install elm/http"
211− , "elm install elm/json"
212− , "elm install elm/random"
213− ]
214− , D.toFancyHint
215− ["In","JavaScript","folks","run","`npm install`","to","start","projects."
216− ,"\"Gotta","download","everything!\"","But","why","download","packages"
217− ,"again","and","again?","Instead,","Elm","caches","packages","in"
218− ,D.dullyellow (D.fromChars elmHome)
219− ,"so","each","one","is","downloaded","and","built","ONCE","on","your","machine."
220− ,"Elm","projects","check","that","cache","before","trying","the","internet."
221− ,"This","reduces","build","times,","reduces","server","costs,","and","makes","it"
222− ,"easier","to","work","offline.","As","a","result"
223− ,D.dullcyan "elm install","is","only","for","adding","dependencies","to","elm.json,"
224− ,"whereas",D.dullcyan "elm make","is","in","charge","of","gathering","dependencies"
225− ,"and","building","everything.","So","maybe","try",D.green "elm make","instead?"
226− ]
227− ]
228−
229− InstallNoSolution badPackages ->
230− case badPackages of
231− [] ->
232− Help.report "UNSOLVABLE DEPENDENCIES" (Just "elm.json") -- TODO give better advice!
233− "This usually happens if you try to modify dependency constraints by\
234− \ hand. I recommend deleting any dependency you added recently (or all\
235− \ of them if things are bad) and then adding them again with:"
236− [ D.indent 4 $ D.green "elm install"
237− , D.reflow $
238− "And do not be afaid to ask for help on Slack if you get stuck!"
239− ]
240−
241− _:_ ->
242− Help.report "OLD DEPENDENCIES" (Just "elm.json")
243− ( "The following packages do not work with Elm " ++ V.toChars V.compiler ++ " right now:"
244− )
245− [ D.indent 4 $ D.vcat $ map (D.red . D.fromUtf8 . Pkg.toString) badPackages
246− , D.reflow $
247− "This may be because it is not upgraded yet. It may be because a\
248− \ better solution came along, so there was no need to upgrade it.\
249− \ Etc. Try asking around on Slack to learn more about the topic."
250− , D.toSimpleNote
251− "Whatever the case, please be kind to the relevant package authors! Having\
252− \ friendly interactions with users is great motivation, and conversely, getting\
253− \ berated by strangers on the internet sucks your soul dry. Furthermore, package\
254− \ authors are humans with families, friends, jobs, vacations, responsibilities,\
255− \ goals, etc. They face obstacles outside of their technical work you will never\
256− \ know about, so please assume the best and try to be patient and supportive!"
257− ]
258−
259−
260−
261−-- DETAILS
262−
263−
264−data Details
265− = DetailsCorrupt
266− | DetailsBadElmInPkg C.Constraint
267− | DetailsBadElmInAppOutline V.Version
268− | DetailsHandEditedDependencies
269− | DetailsBadOutline OutlineProblem
270− | DetailsCannotGetRegistry RegistryProblem
271− | DetailsCannotBuildPackage Pkg.Name V.Version PackageProblem
272−
273−
274−data OutlineProblem
275− = BadOutlineStructure (Json.Error OutlineStructureProblem)
276− | BadOutlineSrcDirs FilePath [FilePath]
277−
278−
279−data OutlineStructureProblem
280− = OSP_BadType Utf8.String
281− | OSP_BadPkgName Pkg.BadName
282− | OSP_BadVersion Utf8.String
283− | OSP_BadConstraint C.Error
284− | OSP_BadModuleName Utf8.String
285− | OSP_BadModuleHeaderTooLong Utf8.String
286− | OSP_BadDependencyName Utf8.String
287− | OSP_BadLicense Utf8.String [Utf8.String]
288− | OSP_BadSummaryTooLong
289−
290−
291−data RegistryProblem
292− = RP_Http Http.Error
293− | RP_Data
294−
295−
296−data PackageProblem
297− = PP_BadEndpointRequest Http.Error
298− | PP_BadEndpointContent
299− | PP_BadArchiveRequest Http.Error
300− | PP_BadArchiveContent
301− | PP_BadArchiveHash String String
302−
303−
304−
305−-- MAKE
306−
307−
308−data Make
309− = MakeNeedsOutline
310− | MakeCannotOptimizeAndDebug
311− | MakeBlockedByDetailsProblem Details
312− | MakeAppNeedsFileNames
313− | MakePkgNeedsExposing
314− | MakeMultipleFilesIntoHtml
315− | MakeNonMainFilesIntoJavaScript ModuleName.Raw [ModuleName.Raw]
316− | MakeCannotOptimizeDebugValues ModuleName.Raw [ModuleName.Raw]
317− | MakeCannotBuild BuildProblem
318− | MakeCannotLoadArtifacts
319−
320−
321−data BuildProblem
322− = BuildModuleProblems Problem.Problem [Problem.Problem]
323− | BuildProjectProblem BuildProjectProblem
324−
325−
326−data BuildProjectProblem
327− = BP_PathUnknown FilePath
328− | BP_WithBadExtension FilePath
329− | BP_WithAmbiguousSrcDir FilePath FilePath
330− | BP_MainPathDuplicate FilePath FilePath
331− | BP_MainNameDuplicate ModuleName.Raw FilePath FilePath
332− | BP_CannotLoadDependencies
333− | BP_Cycle ModuleName.Raw [ModuleName.Raw]
334−
335−
226+ toRegistryProblemReport "PROBLEM UPDATING PACKAGE LIST" problem $
227+ "I need the latest list of published packages before I do this diff"
336228
337−-- RENDERERS
229+ DiffBadDetails details ->
230+ toDetailsReport details
338231
232+ DiffBadBuild buildProblem ->
233+ toBuildProblemReport buildProblem
339234
340−toString :: Help.Report -> String
341−toString report =
342− Help.toString (Help.reportToDoc report)
343235
344236
345−toStderr :: Help.Report -> IO ()
346−toStderr report =
347− Help.toStderr (Help.reportToDoc report)
237+-- BUMP
348238
349239
350−toJson :: Help.Report -> Encode.Value
351−toJson report =
352− Help.reportToJson report
240+data Bump
241+ = BumpNoOutline
242+ | BumpBadOutline Outline
243+ | BumpApplication
244+ | BumpUnexpectedVersion V.Version [V.Version]
245+ | BumpMustHaveLatestRegistry RegistryProblem
246+ | BumpCannotFindDocs Pkg.Name V.Version DocsProblem
247+ | BumpBadDetails Details
248+ | BumpNoExposed
249+ | BumpBadBuild BuildProblem
353250
354251
355−_toReport :: Exit -> Help.Report
356−_toReport exit =
357− case exit of
252+bumpToReport :: Bump -> Help.Report
253+bumpToReport bump =
254+ case bump of
255+ BumpNoOutline ->
256+ Help.report "BUMP WHAT?" Nothing
257+ "I cannot find an elm.json so I am not sure what you want me to bump."
258+ [ D.reflow $
259+ "Elm packages always have an elm.json that says current the version number. If\
260+ \ you run this command from a directory with an elm.json file, I will try to bump\
261+ \ the version in there based on the API changes."
262+ ]
358263
359− -- bump
264+ BumpBadOutline outline ->
265+ toOutlineReport outline
360266
361267 BumpApplication ->
362268 Help.report "CANNOT BUMP APPLICATIONS" (Just "elm.json")
@@ -368,7 +274,7 @@ _toReport exit =
368274 Help.docReport "CANNOT BUMP" (Just "elm.json")
369275 ( D.fillSep
370276 ["Your","elm.json","says","I","should","bump","relative","to","version"
371− ,D.red (D.fromUtf8 (V.toString vsn)) <> ","
277+ ,D.red (D.fromVersion vsn) <> ","
372278 ,"but","I","cannot","find","that","version","on","<https://package.elm-lang.org>."
373279 ,"That","means","there","is","no","API","for","me","to","diff","against","and"
374280 ,"figure","out","if","these","are","MAJOR,","MINOR,","or","PATCH","changes."
@@ -377,19 +283,116 @@ _toReport exit =
377283 [ D.fillSep $
378284 ["Try","bumping","again","after","changing","the",D.dullyellow "\"version\"","in","elm.json"]
379285 ++ if length versions == 1 then ["to:"] else ["to","one","of","these:"]
380− , D.vcat $ map (D.green . D.fromUtf8 . V.toString) versions
286+ , D.vcat $ map (D.green . D.fromVersion) versions
381287 ]
382288
383289 BumpMustHaveLatestRegistry problem ->
384− error "TODO BumpMustHaveLatestRegistry" problem
290+ toRegistryProblemReport "PROBLEM UPDATING PACKAGE LIST" problem $
291+ "I need the latest list of published packages before I can bump any versions"
292+
293+ BumpCannotFindDocs _ version problem ->
294+ toDocsProblemReport problem $
295+ "I need the docs for " ++ V.toChars version ++ " to compute the next version number"
296+
297+ BumpBadDetails details ->
298+ toDetailsReport details
299+
300+ BumpNoExposed ->
301+ Help.docReport "NO EXPOSED MODULES" (Just "elm.json")
302+ ( D.fillSep $
303+ [ "To", "bump", "a", "package,", "the"
304+ , D.dullyellow "\"exposed-modules\"", "field", "of", "your"
305+ , "elm.json", "must", "list", "at", "least", "one", "module."
306+ ]
307+ )
308+ [ D.reflow $
309+ "Try adding some modules back to the \"exposed-modules\" field."
310+ ]
311+
312+ BumpBadBuild problem ->
313+ toBuildProblemReport problem
314+
315+
316+
317+-- OVERVIEW OF VERSIONING
318+
319+
320+newPackageOverview :: String
321+newPackageOverview =
322+ unlines
323+ [ "This package has never been published before. Here's how things work:"
324+ , ""
325+ , " - Versions all have exactly three parts: MAJOR.MINOR.PATCH"
326+ , ""
327+ , " - All packages start with initial version " ++ V.toChars V.one
328+ , ""
329+ , " - Versions are incremented based on how the API changes:"
330+ , ""
331+ , " PATCH = the API is the same, no risk of breaking code"
332+ , " MINOR = values have been added, existing values are unchanged"
333+ , " MAJOR = existing values have been changed or removed"
334+ , ""
335+ , " - I will bump versions for you, automatically enforcing these rules"
336+ , ""
337+ ]
338+
339+
385340
386− BumpCannotFindDocs name version problem ->
387− error "TODO BumpCannotFindDocs" name version problem
341+-- PUBLISH
388342
389− -- publish
343+
344+data Publish
345+ = PublishNoOutline
346+ | PublishBadOutline Outline
347+ | PublishBadDetails Details
348+ | PublishMustHaveLatestRegistry RegistryProblem
349+ | PublishApplication
350+ | PublishNotInitialVersion V.Version
351+ | PublishAlreadyPublished V.Version
352+ | PublishInvalidBump V.Version V.Version
353+ | PublishBadBump V.Version V.Version M.Magnitude V.Version M.Magnitude
354+ | PublishNoSummary
355+ | PublishNoExposed
356+ | PublishNoReadme
357+ | PublishShortReadme
358+ | PublishNoLicense
359+ | PublishBuildProblem BuildProblem
360+ | PublishMissingTag V.Version
361+ | PublishCannotGetTag V.Version Http.Error
362+ | PublishCannotGetTagData V.Version String BS.ByteString
363+ | PublishCannotGetZip Http.Error
364+ | PublishCannotDecodeZip String
365+ | PublishCannotGetDocs V.Version V.Version DocsProblem
366+ | PublishCannotRegister Http.Error
367+ | PublishNoGit
368+ | PublishLocalChanges V.Version
369+ --
370+ | PublishZipBadDetails Details
371+ | PublishZipApplication
372+ | PublishZipNoExposed
373+ | PublishZipBuildProblem BuildProblem
374+
375+
376+publishToReport :: Publish -> Help.Report
377+publishToReport publish =
378+ case publish of
379+ PublishNoOutline ->
380+ Help.report "PUBLISH WHAT?" Nothing
381+ "I cannot find an elm.json so I am not sure what you want me to publish."
382+ [ D.reflow $
383+ "Elm packages always have an elm.json that states the version number,\
384+ \ dependencies, exposed modules, etc."
385+ ]
386+
387+ PublishBadOutline outline ->
388+ toOutlineReport outline
389+
390+ PublishBadDetails problem ->
391+ toDetailsReport problem
390392
391393 PublishMustHaveLatestRegistry problem ->
392− error "TODO PublishMustHaveLatestRegistry" problem
394+ toRegistryProblemReport "PROBLEM UPDATING PACKAGE LIST" problem $
395+ "I need the latest list of published packages to make sure this is safe to publish"
393396
394397 PublishApplication ->
395398 Help.report "UNPUBLISHABLE" Nothing "I cannot publish applications, only packages!" []
@@ -398,7 +401,7 @@ _toReport exit =
398401 Help.docReport "INVALID VERSION" Nothing
399402 ( D.fillSep
400403 ["I","cannot","publish"
401− ,D.red (D.fromUtf8 (V.toString vsn))
404+ ,D.red (D.fromVersion vsn)
402405 ,"as","the","initial","version."
403406 ]
404407 )
@@ -412,7 +415,7 @@ _toReport exit =
412415 Help.docReport "ALREADY PUBLISHED" Nothing
413416 ( D.vcat
414417 [ D.fillSep
415− [ "Version", D.green (D.fromUtf8 (V.toString vsn))
418+ [ "Version", D.green (D.fromVersion vsn)
416419 , "has", "already", "been", "published.", "You", "cannot"
417420 , "publish", "it", "again!"
418421 ]
@@ -429,14 +432,14 @@ _toReport exit =
429432 Help.docReport "INVALID VERSION" (Just "elm.json")
430433 ( D.fillSep $
431434 ["Your","elm.json","says","the","next","version","should","be"
432− ,D.red (D.fromUtf8 (V.toString statedVersion)) <> ","
435+ ,D.red (D.fromVersion statedVersion) <> ","
433436 ,"but","that","is","not","valid","based","on","the","previously"
434437 ,"published","versions."
435438 ]
436439 )
437440 [ D.fillSep $
438441 ["Change","the","version","back","to"
439− ,D.green (D.fromUtf8 (V.toString latestVersion))
442+ ,D.green (D.fromVersion latestVersion)
440443 ,"which","is","the","most","recently","published","version."
441444 ,"From","there,","have","Elm","bump","the","version","by","running:"
442445 ]
@@ -451,7 +454,7 @@ _toReport exit =
451454 (
452455 D.fillSep $
453456 ["Your","elm.json","says","the","next","version","should","be"
454− ,D.red (D.fromUtf8 (V.toString new)) <> ","
457+ ,D.red (D.fromVersion new) <> ","
455458 ,"indicating","a",D.fromChars (M.toChars magnitude)
456459 ,"change","to","the","public","API."
457460 ,"This","does","not","match","the","API","diff","given","by:"
@@ -464,7 +467,7 @@ _toReport exit =
464467 ["This","command","says","this","is","a"
465468 ,D.fromChars (M.toChars realMagnitude)
466469 ,"change,","so","the","next","version","should","be"
467− ,D.green (D.fromUtf8 (V.toString realNew)) <> "."
470+ ,D.green (D.fromVersion realNew) <> "."
468471 ,"Double","check","everything","to","make","sure","you"
469472 ,"are","publishing","what","you","want!"
470473 ]
@@ -494,16 +497,17 @@ _toReport exit =
494497 ]
495498 )
496499 [ D.reflow $
497− "What is the point of a package that has no modules?!"
500+ "Which modules do you want users of the package to have access to? Add their\
501+ \ names to the \"exposed-modules\" list."
498502 ]
499503
500504 PublishNoReadme ->
501− badReadmeReport "NO README" $
505+ toBadReadmeReport "NO README" $
502506 "Every published package must have a helpful README.md\
503507 \ file, but I do not see one in your project."
504508
505509 PublishShortReadme ->
506− badReadmeReport "SHORT README" $
510+ toBadReadmeReport "SHORT README" $
507511 "This README.md is too short. Having more details will help\
508512 \ people assess your package quickly and fairly."
509513
@@ -520,20 +524,8 @@ _toReport exit =
520524 \ named LICENSE. Add that file and you will be all set!"
521525 ]
522526
523− PublishCannotGetTag httpError ->
524− error "TODO PublishCannotGetTag" httpError
525−
526− PublishCannotGetZip httpError ->
527− error "TODO PublishCannotGetZip" httpError
528−
529− PublishCannotDecodeZip ->
530− error "TODO PublishCannotDecodeZip"
531−
532− PublishCannotGetDocs docsProblem ->
533− error "TODO PublishCannotGetDocs" docsProblem
534−
535− PublishCannotRegister httpError ->
536− error "TODO PublishCannotRegister" httpError
527+ PublishBuildProblem buildProblem ->
528+ toBuildProblemReport buildProblem
537529
538530 PublishMissingTag version ->
539531 let vsn = V.toChars version in
@@ -554,6 +546,70 @@ _toReport exit =
554546 , "The -m flag is for a helpful message. Try to make it more informative!"
555547 ]
556548
549+ PublishCannotGetTag version httpError ->
550+ case httpError of
551+ Http.BadHttp _ (HTTP.StatusCodeException response _)
552+ | HTTP.statusCode (HTTP.responseStatus response) == 404 ->
553+ let vsn = V.toChars version in
554+ Help.report "NO TAG ON GITHUB" Nothing
555+ ("You have version " ++ vsn ++ " tagged locally, but not on GitHub.")
556+ [ D.reflow
557+ "Run the following command to make this tag available on GitHub:"
558+ , D.indent 4 $ D.dullyellow $ D.fromChars $
559+ "git push origin " ++ vsn
560+ , D.reflow
561+ "This will make it possible to find your code online based on the version number."
562+ ]
563+
564+ _ ->
565+ toHttpErrorReport "PROBLEM VERIFYING TAG" httpError
566+ "I need to check that the version tag is registered on GitHub"
567+
568+ PublishCannotGetTagData version url body ->
569+ Help.report "PROBLEM VERIFYING TAG" Nothing
570+ ("I need to check that version " ++ V.toChars version ++ " is tagged on GitHub, so I fetched:")
571+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
572+ , D.reflow $
573+ "I got the data back, but it was not what I was expecting. The response\
574+ \ body contains " ++ show (BS.length body) ++ " bytes. Here is the "
575+ ++ if BS.length body <= 76 then "whole thing:" else "beginning:"
576+ , D.indent 4 $ D.dullyellow $ D.fromChars $
577+ if BS.length body <= 76
578+ then BS_UTF8.toString body
579+ else take 73 (BS_UTF8.toString body) ++ "..."
580+ , D.reflow $
581+ "Does this error keep showing up? Maybe there is something weird with your\
582+ \ internet connection. We have gotten reports that schools, businesses,\
583+ \ airports, etc. sometimes intercept requests and add things to the body\
584+ \ or change its contents entirely. Could that be the problem?"
585+ ]
586+
587+ PublishCannotGetZip httpError ->
588+ toHttpErrorReport "PROBLEM DOWNLOADING CODE" httpError $
589+ "I need to check that folks can download and build the source code when they\
590+ \ install this package"
591+
592+ PublishCannotDecodeZip url ->
593+ Help.report "PROBLEM DOWNLOADING CODE" Nothing
594+ "I need to check that folks can download and build the source code when they\
595+ \ install this package, so I downloaded the code from:"
596+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
597+ , D.reflow $
598+ "I was unable to unzip the archive though. Maybe there is something weird with\
599+ \ your internet connection. We have gotten reports that schools, businesses,\
600+ \ airports, etc. sometimes intercept requests and add things to the body or\
601+ \ change its contents entirely. Could that be the problem?"
602+ ]
603+
604+ PublishCannotGetDocs old new docsProblem ->
605+ toDocsProblemReport docsProblem $
606+ "I need the docs for " ++ V.toChars old ++ " to verify that "
607+ ++ V.toChars new ++ " really does come next"
608+
609+ PublishCannotRegister httpError ->
610+ toHttpErrorReport "PROBLEM PUBLISHING PACKAGE" httpError $
611+ "I need to send information about your package to the package website"
612+
557613 PublishNoGit ->
558614 Help.report "NO GIT" Nothing
559615 "I searched your PATH environment variable for `git` and could not\
@@ -583,9 +639,21 @@ _toReport exit =
583639 ++ vsn ++ "` and publish your code from there."
584640 ]
585641
642+ PublishZipBadDetails _ ->
643+ badZipReport
644+
645+ PublishZipApplication ->
646+ badZipReport
647+
648+ PublishZipNoExposed ->
649+ badZipReport
586650
587−badReadmeReport :: String -> String -> Help.Report
588−badReadmeReport title summary =
651+ PublishZipBuildProblem _ ->
652+ badZipReport
653+
654+
655+toBadReadmeReport :: String -> String -> Help.Report
656+toBadReadmeReport title summary =
589657 Help.report title (Just "README.md") summary
590658 [ D.reflow $
591659 "When people look at your README, they are wondering:"
@@ -598,65 +666,942 @@ badReadmeReport title summary =
598666 \ most common usage scenario. Show people what they can expect if\
599667 \ they learn more!"
600668 , D.toSimpleNote $
601− "By publishing your package, you are inviting people to invest time\
602− \ in understanding your work. Spending an hour to communicate your\
603− \ knowledge more clearly can save the community days or weeks of time\
604− \ in aggregate, and saving time in aggregate is the whole point of\
605− \ publishing packages! People really appreciate it, and it makes the\
606− \ whole ecosystem feel nicer!"
669+ "By publishing your package, you are inviting people to invest time in\
670+ \ understanding your work. Spending an hour on your README to communicate your\
671+ \ knowledge more clearly can save the community days or weeks of time in\
672+ \ aggregate, and saving time in aggregate is the whole point of publishing\
673+ \ packages! People really appreciate it, and it makes the whole ecosystem feel\
674+ \ nicer!"
607675 ]
608676
609677
678+badZipReport :: Help.Report
679+badZipReport =
680+ Help.report "PROBLEM VERIFYING PACKAGE" Nothing
681+ "Before publishing packages, I download the code from GitHub and try to build it\
682+ \ from scratch. That way I can be more confident that it will work for other\
683+ \ people too. But I am not able to build it!"
684+ [ D.reflow $
685+ "I was just able to build your local copy though. Is there some way the version\
686+ \ on GitHub could be different?"
687+ ]
610688
611−-- DETAILS TO REPORT
612689
613690
614−detailsToReport :: Details -> Help.Report
615−detailsToReport details =
616− case details of
617− DetailsCorrupt ->
618− error "TODO DetailsCorrupt"
691+-- DOCS
619692
620− DetailsBadElmInPkg constraint ->
621− Help.report "ELM VERSION MISMATCH" (Just "elm.json")
622− "Your elm.json says this package needs a version of Elm in this range:"
623− [ D.indent 4 $ D.dullyellow $ D.fromUtf8 $ C.toString constraint
624− , D.fillSep
625− [ "But", "you", "are", "using", "Elm"
626− , D.red (D.fromUtf8 (V.toString V.compiler))
627− , "right", "now."
628− ]
629− ]
630693
631− DetailsBadElmInAppOutline version ->
632− Help.report "ELM VERSION MISMATCH" (Just "elm.json")
633− "Your elm.json says this application needs a different version of Elm."
634− [ D.fillSep
635− [ "It", "requires"
636− , D.green (D.fromUtf8 (V.toString version)) <> ","
637− , "but", "you", "are", "using"
638− , D.red (D.fromUtf8 (V.toString V.compiler))
639− , "right", "now."
694+data DocsProblem
695+ = DP_Http Http.Error
696+ | DP_Data String BS.ByteString
697+ | DP_Cache
698+
699+
700+toDocsProblemReport :: DocsProblem -> String -> Help.Report
701+toDocsProblemReport problem context =
702+ case problem of
703+ DP_Http httpError ->
704+ toHttpErrorReport "PROBLEM LOADING DOCS" httpError context
705+
706+ DP_Data url body ->
707+ Help.report "PROBLEM LOADING DOCS" Nothing (context ++ ", so I fetched:")
708+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
709+ , D.reflow $
710+ "I got the data back, but it was not what I was expecting. The response\
711+ \ body contains " ++ show (BS.length body) ++ " bytes. Here is the "
712+ ++ if BS.length body <= 76 then "whole thing:" else "beginning:"
713+ , D.indent 4 $ D.dullyellow $ D.fromChars $
714+ if BS.length body <= 76
715+ then BS_UTF8.toString body
716+ else take 73 (BS_UTF8.toString body) ++ "..."
717+ , D.reflow $
718+ "Does this error keep showing up? Maybe there is something weird with your\
719+ \ internet connection. We have gotten reports that schools, businesses,\
720+ \ airports, etc. sometimes intercept requests and add things to the body\
721+ \ or change its contents entirely. Could that be the problem?"
722+ ]
723+
724+ DP_Cache ->
725+ Help.report "PROBLEM LOADING DOCS" Nothing (context ++ ", but the local copy seems to be corrupted.")
726+ [ D.reflow $
727+ "I deleted the cached version, so the next run should download a fresh copy of\
728+ \ the docs. Hopefully that will get you unstuck, but it will not resolve the root\
729+ \ problem if, for example, a 3rd party editor plugin is modifing cached files\
730+ \ for some reason."
731+ ]
732+
733+
734+
735+-- INSTALL
736+
737+
738+data Install
739+ = InstallNoOutline
740+ | InstallBadOutline Outline
741+ | InstallBadRegistry RegistryProblem
742+ | InstallNoArgs FilePath
743+ | InstallNoOnlineAppSolution Pkg.Name
744+ | InstallNoOfflineAppSolution Pkg.Name
745+ | InstallNoOnlinePkgSolution Pkg.Name
746+ | InstallNoOfflinePkgSolution Pkg.Name
747+ | InstallHadSolverTrouble Solver
748+ | InstallUnknownPackageOnline Pkg.Name [Pkg.Name]
749+ | InstallUnknownPackageOffline Pkg.Name [Pkg.Name]
750+ | InstallBadDetails Details
751+
752+
753+installToReport :: Install -> Help.Report
754+installToReport exit =
755+ case exit of
756+ InstallNoOutline ->
757+ Help.report "NEW PROJECT?" Nothing
758+ "Are you trying to start a new project? Try this command instead:"
759+ [ D.indent 4 $ D.green "elm init"
760+ , D.reflow "It will help you get started!"
761+ ]
762+
763+ InstallBadOutline outline ->
764+ toOutlineReport outline
765+
766+ InstallBadRegistry problem ->
767+ toRegistryProblemReport "PROBLEM LOADING PACKAGE LIST" problem $
768+ "I need the list of published packages to figure out how to install things"
769+
770+ InstallNoArgs elmHome ->
771+ Help.report "INSTALL WHAT?" Nothing
772+ "I am expecting commands like:"
773+ [ D.green $ D.indent 4 $ D.vcat $
774+ [ "elm install elm/http"
775+ , "elm install elm/json"
776+ , "elm install elm/random"
777+ ]
778+ , D.toFancyHint
779+ ["In","JavaScript","folks","run","`npm install`","to","start","projects."
780+ ,"\"Gotta","download","everything!\"","But","why","download","packages"
781+ ,"again","and","again?","Instead,","Elm","caches","packages","in"
782+ ,D.dullyellow (D.fromChars elmHome)
783+ ,"so","each","one","is","downloaded","and","built","ONCE","on","your","machine."
784+ ,"Elm","projects","check","that","cache","before","trying","the","internet."
785+ ,"This","reduces","build","times,","reduces","server","costs,","and","makes","it"
786+ ,"easier","to","work","offline.","As","a","result"
787+ ,D.dullcyan "elm install","is","only","for","adding","dependencies","to","elm.json,"
788+ ,"whereas",D.dullcyan "elm make","is","in","charge","of","gathering","dependencies"
789+ ,"and","building","everything.","So","maybe","try",D.green "elm make","instead?"
790+ ]
791+ ]
792+
793+ InstallNoOnlineAppSolution pkg ->
794+ Help.report "CANNOT FIND COMPATIBLE VERSION" (Just "elm.json")
795+ (
796+ "I cannot find a version of " ++ Pkg.toChars pkg ++ " that is compatible\
797+ \ with your existing dependencies."
798+ )
799+ [ D.reflow $
800+ "I checked all the published versions. When that failed, I tried to find any\
801+ \ compatible combination of these packages, even if it meant changing all your\
802+ \ existing dependencies! That did not work either!"
803+ , D.reflow $
804+ "This is most likely to happen when a package is not upgraded yet. Maybe a new\
805+ \ version of Elm came out recently? Maybe a common package was changed recently?\
806+ \ Maybe a better package came along, so there was no need to upgrade this one?\
807+ \ Try asking around https://elm-lang.org/community to learn what might be going on\
808+ \ with this package."
809+ , D.toSimpleNote $
810+ "Whatever the case, please be kind to the relevant package authors! Having\
811+ \ friendly interactions with users is great motivation, and conversely, getting\
812+ \ berated by strangers on the internet sucks your soul dry. Furthermore, package\
813+ \ authors are humans with families, friends, jobs, vacations, responsibilities,\
814+ \ goals, etc. They face obstacles outside of their technical work you will never\
815+ \ know about, so please assume the best and try to be patient and supportive!"
816+ ]
817+
818+ InstallNoOfflineAppSolution pkg ->
819+ Help.report "CANNOT FIND COMPATIBLE VERSION LOCALLY" (Just "elm.json")
820+ (
821+ "I cannot find a version of " ++ Pkg.toChars pkg ++ " that is compatible\
822+ \ with your existing dependencies."
823+ )
824+ [ D.reflow $
825+ "I was not able to connect to https://package.elm-lang.org/ though, so I was only\
826+ \ able to look through packages that you have downloaded in the past."
827+ , D.reflow $
828+ "Try again later when you have internet!"
829+ ]
830+
831+ InstallNoOnlinePkgSolution pkg ->
832+ Help.report "CANNOT FIND COMPATIBLE VERSION" (Just "elm.json")
833+ (
834+ "I cannot find a version of " ++ Pkg.toChars pkg ++ " that is compatible\
835+ \ with your existing constraints."
836+ )
837+ [ D.reflow $
838+ "With applications, I try to broaden the constraints to see if anything works,\
839+ \ but messing with package constraints is much more delicate business. E.g. making\
840+ \ your constraints stricter may make it harder for applications to find compatible\
841+ \ dependencies. So fixing something here may break it for a lot of other people!"
842+ , D.reflow $
843+ "So I recommend making an application with the same dependencies as your package.\
844+ \ See if there is a solution at all. From there it may be easier to figure out\
845+ \ how to proceed in a way that will disrupt your users as little as possible. And\
846+ \ the solution may be to help other package authors to get their packages updated,\
847+ \ or to drop a dependency entirely."
848+ ]
849+
850+ InstallNoOfflinePkgSolution pkg ->
851+ Help.report "CANNOT FIND COMPATIBLE VERSION LOCALLY" (Just "elm.json")
852+ (
853+ "I cannot find a version of " ++ Pkg.toChars pkg ++ " that is compatible\
854+ \ with your existing constraints."
855+ )
856+ [ D.reflow $
857+ "I was not able to connect to https://package.elm-lang.org/ though, so I was only\
858+ \ able to look through packages that you have downloaded in the past."
859+ , D.reflow $
860+ "Try again later when you have internet!"
861+ ]
862+
863+ InstallHadSolverTrouble solver ->
864+ toSolverReport solver
865+
866+ InstallUnknownPackageOnline pkg suggestions ->
867+ Help.docReport "UNKNOWN PACKAGE" Nothing
868+ (
869+ D.fillSep
870+ ["I","cannot","find","a","package","named",D.red (D.fromPackage pkg) <> "."]
871+ )
872+ [ D.reflow $
873+ "I looked through https://package.elm-lang.org for packages with similar names\
874+ \ and found these:"
875+ , D.indent 4 $ D.dullyellow $ D.vcat $ map D.fromPackage suggestions
876+ , D.reflow $ "Maybe you want one of these instead?"
877+ ]
878+
879+ InstallUnknownPackageOffline pkg suggestions ->
880+ Help.docReport "UNKNOWN PACKAGE" Nothing
881+ (
882+ D.fillSep
883+ ["I","cannot","find","a","package","named",D.red (D.fromPackage pkg) <> "."]
884+ )
885+ [ D.reflow $
886+ "I could not connect to https://package.elm-lang.org though, so new packages may\
887+ \ have been published since I last updated my local cache of package names."
888+ , D.reflow $
889+ "Looking through the locally cached names, the closest ones are:"
890+ , D.indent 4 $ D.dullyellow $ D.vcat $ map D.fromPackage suggestions
891+ , D.reflow $ "Maybe you want one of these instead?"
892+ ]
893+
894+ InstallBadDetails details ->
895+ toDetailsReport details
896+
897+
898+
899+-- SOLVER
900+
901+
902+data Solver
903+ = SolverBadCacheData Pkg.Name V.Version
904+ | SolverBadHttpData Pkg.Name V.Version String
905+ | SolverBadHttp Pkg.Name V.Version Http.Error
906+
907+
908+toSolverReport :: Solver -> Help.Report
909+toSolverReport problem =
910+ case problem of
911+ SolverBadCacheData pkg vsn ->
912+ Help.report "PROBLEM SOLVING PACKAGE CONSTRAINTS" Nothing
913+ (
914+ "I need the elm.json of " ++ Pkg.toChars pkg ++ " " ++ V.toChars vsn ++ " to\
915+ \ help me search for a set of compatible packages. I had it cached locally, but\
916+ \ it looks like the file was corrupted!"
917+ )
918+ [ D.reflow $
919+ "I deleted the cached version, so the next run should download a fresh copy.\
920+ \ Hopefully that will get you unstuck, but it will not resolve the root\
921+ \ problem if a 3rd party tool is modifing cached files for some reason."
922+ ]
923+
924+ SolverBadHttpData pkg vsn url ->
925+ Help.report "PROBLEM SOLVING PACKAGE CONSTRAINTS" Nothing
926+ (
927+ "I need the elm.json of " ++ Pkg.toChars pkg ++ " " ++ V.toChars vsn ++ " to\
928+ \ help me search for a set of compatible packages, but I ran into corrupted\
929+ \ information from:"
930+ )
931+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
932+ , D.reflow $
933+ "Is something weird with your internet connection. We have gotten reports that\
934+ \ schools, businesses, airports, etc. sometimes intercept requests and add things\
935+ \ to the body or change its contents entirely. Could that be the problem?"
936+ ]
937+
938+ SolverBadHttp pkg vsn httpError ->
939+ toHttpErrorReport "PROBLEM SOLVING PACKAGE CONSTRAINTS" httpError $
940+ "I need the elm.json of " ++ Pkg.toChars pkg ++ " " ++ V.toChars vsn
941+ ++ " to help me search for a set of compatible packages"
942+
943+
944+
945+-- OUTLINE
946+
947+
948+data Outline
949+ = OutlineHasBadStructure (Decode.Error OutlineProblem)
950+ | OutlineHasMissingSrcDirs FilePath [FilePath]
951+ | OutlineHasDuplicateSrcDirs FilePath FilePath FilePath
952+ | OutlineNoPkgCore
953+ | OutlineNoAppCore
954+ | OutlineNoAppJson
955+
956+
957+data OutlineProblem
958+ = OP_BadType
959+ | OP_BadPkgName Row Col
960+ | OP_BadVersion Row Col
961+ | OP_BadConstraint C.Error
962+ | OP_BadModuleName Row Col
963+ | OP_BadModuleHeaderTooLong
964+ | OP_BadDependencyName Row Col
965+ | OP_BadLicense Json.String [Json.String]
966+ | OP_BadSummaryTooLong
967+ | OP_NoSrcDirs
968+
969+
970+toOutlineReport :: Outline -> Help.Report
971+toOutlineReport problem =
972+ case problem of
973+ OutlineHasBadStructure decodeError ->
974+ Json.toReport "elm.json" (Json.FailureToReport toOutlineProblemReport) decodeError $
975+ Json.ExplicitReason "I ran into a problem with your elm.json file."
976+
977+ OutlineHasMissingSrcDirs dir dirs ->
978+ case dirs of
979+ [] ->
980+ Help.report "MISSING SOURCE DIRECTORY" (Just "elm.json")
981+ "I need a valid elm.json file, but the \"source-directories\" field lists the following directory:"
982+ [ D.indent 4 $ D.red $ D.fromChars dir
983+ , D.reflow $
984+ "I cannot find it though. Is it missing? Is there a typo?"
985+ ]
986+
987+ _:_ ->
988+ Help.report "MISSING SOURCE DIRECTORIES" (Just "elm.json")
989+ "I need a valid elm.json file, but the \"source-directories\" field lists the following directories:"
990+ [ D.indent 4 $ D.vcat $
991+ map (D.red . D.fromChars) (dir:dirs)
992+ , D.reflow $
993+ "I cannot find them though. Are they missing? Are there typos?"
994+ ]
995+
996+ OutlineHasDuplicateSrcDirs canonicalDir dir1 dir2 ->
997+ if dir1 == dir2 then
998+ Help.report "REDUNDANT SOURCE DIRECTORIES" (Just "elm.json")
999+ "I need a valid elm.json file, but the \"source-directories\" field lists the same directory twice:"
1000+ [ D.indent 4 $ D.vcat $
1001+ map (D.red . D.fromChars) [dir1,dir2]
1002+ , D.reflow $
1003+ "Remove one of the entries!"
1004+ ]
1005+ else
1006+ Help.report "REDUNDANT SOURCE DIRECTORIES" (Just "elm.json")
1007+ "I need a valid elm.json file, but the \"source-directories\" field has some redundant directories:"
1008+ [ D.indent 4 $ D.vcat $
1009+ map (D.red . D.fromChars) [dir1,dir2]
1010+ , D.reflow $
1011+ "These are two different ways of refering to the same directory:"
1012+ , D.indent 4 $ D.dullyellow $ D.fromChars canonicalDir
1013+ , D.reflow $
1014+ "Remove one of the redundant entries from your \"source-directories\" field."
1015+ ]
1016+
1017+ OutlineNoPkgCore ->
1018+ Help.report "MISSING DEPENDENCY" (Just "elm.json")
1019+ "I need to see an \"elm/core\" dependency your elm.json file. The default imports\
1020+ \ of `List` and `Maybe` do not work without it."
1021+ [ D.reflow $
1022+ "If you modified your elm.json by hand, try to change it back! And if you are\
1023+ \ having trouble getting back to a working elm.json, it may be easier to find a\
1024+ \ working package and start fresh with their elm.json file."
1025+ ]
1026+
1027+ OutlineNoAppCore ->
1028+ Help.report "MISSING DEPENDENCY" (Just "elm.json")
1029+ "I need to see an \"elm/core\" dependency your elm.json file. The default imports\
1030+ \ of `List` and `Maybe` do not work without it."
1031+ [ D.reflow $
1032+ "If you modified your elm.json by hand, try to change it back! And if you are\
1033+ \ having trouble getting back to a working elm.json, it may be easier to delete it\
1034+ \ and use `elm init` to start fresh."
1035+ ]
1036+
1037+ OutlineNoAppJson ->
1038+ Help.report "MISSING DEPENDENCY" (Just "elm.json")
1039+ "I need to see an \"elm/json\" dependency your elm.json file. It helps me handle\
1040+ \ flags and ports."
1041+ [ D.reflow $
1042+ "If you modified your elm.json by hand, try to change it back! And if you are\
1043+ \ having trouble getting back to a working elm.json, it may be easier to delete it\
1044+ \ and use `elm init` to start fresh."
1045+ ]
1046+
1047+
1048+toOutlineProblemReport :: FilePath -> Code.Source -> Json.Context -> A.Region -> OutlineProblem -> Help.Report
1049+toOutlineProblemReport path source _ region problem =
1050+ let
1051+ toHighlight row col =
1052+ Just $ A.Region (A.Position row col) (A.Position row col)
1053+
1054+ toSnippet title highlight pair =
1055+ Help.jsonReport title (Just path) $
1056+ Code.toSnippet source region highlight pair
1057+ in
1058+ case problem of
1059+ OP_BadType ->
1060+ toSnippet "UNEXPECTED TYPE" Nothing
1061+ ( D.reflow $
1062+ "I got stuck while reading your elm.json file. I cannot handle a \"type\" like this:"
1063+ , D.fillSep
1064+ ["Try","changing","the","\"type\"","to"
1065+ ,D.green "\"application\"","or",D.green "\"package\"","instead."
1066+ ]
1067+ )
1068+
1069+ OP_BadPkgName row col ->
1070+ toSnippet "INVALID PACKAGE NAME" (toHighlight row col)
1071+ ( D.reflow $
1072+ "I got stuck while reading your elm.json file. I ran into trouble with the package name:"
1073+ , D.stack
1074+ [ D.fillSep
1075+ ["Package","names","are","always","written","as"
1076+ ,D.green "\"author/project\""
1077+ ,"so","I","am","expecting","to","see","something","like:"
1078+ ]
1079+ , D.dullyellow $ D.indent 4 $ D.vcat $
1080+ [ "\"mdgriffith/elm-ui\""
1081+ , "\"w0rm/elm-physics\""
1082+ , "\"Microsoft/elm-json-tree-view\""
1083+ , "\"FordLabs/elm-star-rating\""
1084+ , "\"1602/json-schema\""
1085+ ]
1086+ , D.reflow
1087+ "The author name should match your GitHub name exactly, and the project name\
1088+ \ needs to follow these rules:"
1089+ , D.indent 4 $ D.vcat $
1090+ [ "+--------------------------------------+-----------+-----------+"
1091+ , "| RULE | BAD | GOOD |"
1092+ , "+--------------------------------------+-----------+-----------+"
1093+ , "| only lower case, digits, and hyphens | elm-HTTP | elm-http |"
1094+ , "| no leading digits | 3D | elm-3d |"
1095+ , "| no non-ASCII characters | elm-bjørn | elm-bear |"
1096+ , "| no underscores | elm_ui | elm-ui |"
1097+ , "| no double hyphens | elm--hash | elm-hash |"
1098+ , "| no starting or ending hyphen | -elm-tar- | elm-tar |"
1099+ , "+--------------------------------------+-----------+-----------+"
1100+ ]
1101+ , D.toSimpleNote $
1102+ "These rules only apply to the project name, so you should never need\
1103+ \ to change your GitHub name!"
1104+ ]
1105+ )
1106+
1107+ OP_BadVersion row col ->
1108+ toSnippet "PROBLEM WITH VERSION" (toHighlight row col)
1109+ ( D.reflow $
1110+ "I got stuck while reading your elm.json file. I was expecting a version number here:"
1111+ , D.fillSep
1112+ ["I","need","something","like",D.green "\"1.0.0\"","or",D.green "\"2.0.4\""
1113+ ,"that","explicitly","states","all","three","numbers!"
1114+ ]
1115+ )
1116+
1117+ OP_BadConstraint constraintError ->
1118+ case constraintError of
1119+ C.BadFormat row col ->
1120+ toSnippet "PROBLEM WITH CONSTRAINT" (toHighlight row col)
1121+ ( D.reflow $
1122+ "I got stuck while reading your elm.json file. I do not understand this version constraint:"
1123+ , D.stack
1124+ [ D.fillSep
1125+ ["I","need","something","like",D.green "\"1.0.0 <= v < 2.0.0\""
1126+ ,"that","explicitly","lists","the","lower","and","upper","bounds."
1127+ ]
1128+ , D.toSimpleNote $
1129+ "The spaces in there are required! Taking them out will confuse me. Adding\
1130+ \ extra spaces confuses me too. I recommend starting with a valid example\
1131+ \ and just changing the version numbers."
1132+ ]
1133+ )
1134+
1135+ C.InvalidRange before after ->
1136+ if before == after then
1137+ toSnippet "PROBLEM WITH CONSTRAINT" Nothing
1138+ ( D.reflow $
1139+ "I got stuck while reading your elm.json file. I ran into an invalid version constraint:"
1140+ , D.fillSep
1141+ ["Elm","checks","that","all","package","APIs","follow","semantic","versioning,"
1142+ ,"so","it","is","best","to","use","wide","constraints.","I","recommend"
1143+ ,D.green $ "\"" <> D.fromVersion before <> " <= v < " <> D.fromVersion (V.bumpMajor after) <> "\""
1144+ ,"since","it","is","guaranteed","that","breaking","API","changes","cannot"
1145+ ,"happen","in","any","of","the","versions","in","that","range."
1146+ ]
1147+ )
1148+
1149+ else
1150+ toSnippet "PROBLEM WITH CONSTRAINT" Nothing
1151+ ( D.reflow $
1152+ "I got stuck while reading your elm.json file. I ran into an invalid version constraint:"
1153+ , D.fillSep
1154+ ["Maybe","you","want","something","like"
1155+ ,D.green $ "\"" <> D.fromVersion before <> " <= v < " <> D.fromVersion (V.bumpMajor before) <> "\""
1156+ ,"instead?","Elm","checks","that","all","package","APIs","follow","semantic"
1157+ ,"versioning,","so","it","is","guaranteed","that","breaking","API","changes"
1158+ ,"cannot","happen","in","any","of","the","versions","in","that","range."
1159+ ]
1160+ )
1161+
1162+ OP_BadModuleName row col ->
1163+ toSnippet "PROBLEM WITH MODULE NAME" (toHighlight row col)
1164+ ( D.reflow $
1165+ "I got stuck while reading your elm.json file. I was expecting a module name here:"
1166+ , D.fillSep
1167+ ["I","need","something","like",D.green "\"Html.Events\""
1168+ ,"or",D.green "\"Browser.Navigation\""
1169+ ,"where","each","segment","starts","with","a","capital"
1170+ ,"letter","and","the","segments","are","separated","by","dots."
1171+ ]
1172+ )
1173+
1174+ OP_BadModuleHeaderTooLong ->
1175+ toSnippet "HEADER TOO LONG" Nothing
1176+ ( D.reflow $
1177+ "I got stuck while reading your elm.json file. This section header is too long:"
1178+ , D.stack
1179+ [ D.fillSep
1180+ ["I","need","it","to","be"
1181+ ,D.green "under",D.green "20",D.green "bytes"
1182+ ,"so","it","renders","nicely","on","the","package","website!"
1183+ ]
1184+ , D.toSimpleNote
1185+ "I count the length in bytes, so using non-ASCII characters costs extra.\
1186+ \ Please report your case at https://github.com/elm/compiler/issues if this seems\
1187+ \ overly restrictive for your needs."
1188+ ]
1189+ )
1190+
1191+ OP_BadDependencyName row col ->
1192+ toSnippet "PROBLEM WITH DEPENDENCY NAME" (toHighlight row col)
1193+ ( D.reflow $
1194+ "I got stuck while reading your elm.json file. There is something wrong with this dependency name:"
1195+ , D.stack
1196+ [ D.fillSep
1197+ ["Package","names","always","include","the","name","of","the","author,"
1198+ ,"so","I","am","expecting","to","see","dependencies","like"
1199+ ,D.dullyellow "\"mdgriffith/elm-ui\"","and"
1200+ ,D.dullyellow "\"Microsoft/elm-json-tree-view\"" <> "."
1201+ ]
1202+ , D.fillSep $
1203+ ["I","generally","recommend","finding","the","package","you","want","on"
1204+ ,"the","package","website,","and","installing","it","with","the"
1205+ ,D.green "elm install","command!"
1206+ ]
1207+ ]
1208+ )
1209+
1210+ OP_BadLicense _ suggestions ->
1211+ toSnippet "UNKNOWN LICENSE" Nothing
1212+ ( D.reflow $
1213+ "I got stuck while reading your elm.json file. I do not know about this type of license:"
1214+ ,
1215+ D.stack
1216+ [ D.fillSep
1217+ ["Elm","packages","generally","use"
1218+ ,D.green "\"BSD-3-Clause\"","or",D.green "\"MIT\"" <> ","
1219+ ,"but","I","accept","any","OSI","approved","SPDX","license."
1220+ ,"Here","some","that","seem","close","to","what","you","wrote:"
1221+ ]
1222+ , D.indent 4 $ D.dullyellow $ D.vcat $ map (D.fromChars . Json.toChars) suggestions
1223+ , D.reflow $
1224+ "Check out https://spdx.org/licenses/ for the full list of options."
1225+ ]
1226+ )
1227+
1228+ OP_BadSummaryTooLong ->
1229+ toSnippet "SUMMARY TOO LONG" Nothing
1230+ ( D.reflow $
1231+ "I got stuck while reading your elm.json file. Your \"summary\" is too long:"
1232+ , D.stack
1233+ [ D.fillSep
1234+ ["I","need","it","to","be"
1235+ ,D.green "under",D.green "80",D.green "bytes"
1236+ ,"so","it","renders","nicely","on","the","package","website!"
1237+ ]
1238+ , D.toSimpleNote
1239+ "I count the length in bytes, so using non-ASCII characters costs extra.\
1240+ \ Please report your case at https://github.com/elm/compiler/issues if this seems\
1241+ \ overly restrictive for your needs."
1242+ ]
1243+ )
1244+
1245+ OP_NoSrcDirs ->
1246+ toSnippet "NO SOURCE DIRECTORIES" Nothing
1247+ ( D.reflow $
1248+ "I got stuck while reading your elm.json file. You do not have any \"source-directories\" listed here:"
1249+ , D.fillSep
1250+ ["I","need","something","like",D.green "[\"src\"]"
1251+ ,"so","I","know","where","to","look","for","your","modules!"
1252+ ]
1253+ )
1254+
1255+
1256+
1257+-- DETAILS
1258+
1259+
1260+data Details
1261+ = DetailsNoSolution
1262+ | DetailsNoOfflineSolution
1263+ | DetailsSolverProblem Solver
1264+ | DetailsBadElmInPkg C.Constraint
1265+ | DetailsBadElmInAppOutline V.Version
1266+ | DetailsHandEditedDependencies
1267+ | DetailsBadOutline Outline
1268+ | DetailsCannotGetRegistry RegistryProblem
1269+ | DetailsBadDeps FilePath [DetailsBadDep]
1270+
1271+
1272+data DetailsBadDep
1273+ = BD_BadDownload Pkg.Name V.Version PackageProblem
1274+ | BD_BadBuild Pkg.Name V.Version (Map.Map Pkg.Name V.Version)
1275+
1276+
1277+toDetailsReport :: Details -> Help.Report
1278+toDetailsReport details =
1279+ case details of
1280+ DetailsNoSolution ->
1281+ Help.report "INCOMPATIBLE DEPENDENCIES" (Just "elm.json")
1282+ "The dependencies in your elm.json are not compatible."
1283+ [ D.fillSep
1284+ ["Did","you","change","them","by","hand?","Try","to","change","it","back!"
1285+ ,"It","is","much","more","reliable","to","add","dependencies","with",D.green "elm install" <> "."
1286+ ]
1287+ , D.reflow $
1288+ "Please ask for help on the community forums if you try those paths and are still\
1289+ \ having problems!"
1290+ ]
1291+
1292+ DetailsNoOfflineSolution ->
1293+ Help.report "TROUBLE VERIFYING DEPENDENCIES" (Just "elm.json")
1294+ "I could not connect to https://package.elm-lang.org to get the latest list of\
1295+ \ packages, and I was unable to verify your dependencies with the information I\
1296+ \ have cached locally."
1297+ [ D.reflow $
1298+ "Are you able to connect to the internet? These dependencies may work once you\
1299+ \ get access to the registry!"
1300+ , D.toFancyNote
1301+ ["If","you","changed","your","dependencies","by","hand,","try","to","change","them","back!"
1302+ ,"It","is","much","more","reliable","to","add","dependencies","with",D.green "elm install" <> "."
1303+ ]
1304+ ]
1305+
1306+ DetailsSolverProblem solver ->
1307+ toSolverReport solver
1308+
1309+ DetailsBadElmInPkg constraint ->
1310+ Help.report "ELM VERSION MISMATCH" (Just "elm.json")
1311+ "Your elm.json says this package needs a version of Elm in this range:"
1312+ [ D.indent 4 $ D.dullyellow $ D.fromChars $ C.toChars constraint
1313+ , D.fillSep
1314+ [ "But", "you", "are", "using", "Elm"
1315+ , D.red (D.fromVersion V.compiler)
1316+ , "right", "now."
1317+ ]
1318+ ]
1319+
1320+ DetailsBadElmInAppOutline version ->
1321+ Help.report "ELM VERSION MISMATCH" (Just "elm.json")
1322+ "Your elm.json says this application needs a different version of Elm."
1323+ [ D.fillSep
1324+ [ "It", "requires"
1325+ , D.green (D.fromVersion version) <> ","
1326+ , "but", "you", "are", "using"
1327+ , D.red (D.fromVersion V.compiler)
1328+ , "right", "now."
6401329 ]
6411330 ]
6421331
6431332 DetailsHandEditedDependencies ->
644− error "TODO DetailsHandEditedDependencies"
1333+ Help.report "ERROR IN DEPENDENCIES" (Just "elm.json")
1334+ "It looks like the dependencies elm.json in were edited by hand (or by a 3rd\
1335+ \ party tool) leaving them in an invalid state."
1336+ [ D.fillSep
1337+ ["Try","to","change","them","back","to","what","they","were","before!"
1338+ ,"It","is","much","more","reliable","to","add","dependencies","with",D.green "elm install" <> "."
1339+ ]
1340+ , D.reflow $
1341+ "Please ask for help on the community forums if you try those paths and are still\
1342+ \ having problems!"
1343+ ]
6451344
646− DetailsBadOutline problem ->
647− error "TODO DetailsBadOutline" problem
1345+ DetailsBadOutline outline ->
1346+ toOutlineReport outline
6481347
6491348 DetailsCannotGetRegistry problem ->
650− error "TODO DetailsCannotGetRegistry" problem
1349+ toRegistryProblemReport "PROBLEM LOADING PACKAGE LIST" problem $
1350+ "I need the list of published packages to verify your dependencies"
1351+
1352+ DetailsBadDeps cacheDir deps ->
1353+ case List.sortOn toBadDepRank deps of
1354+ [] ->
1355+ Help.report "PROBLEM BUILDING DEPENDENCIES" Nothing
1356+ "I am not sure what is going wrong though."
1357+ [ D.reflow $
1358+ "I would try deleting the " ++ cacheDir ++ " and elm-stuff/ directories, then\
1359+ \ trying to build again. That will work if some cached files got corrupted\
1360+ \ somehow."
1361+ , D.reflow $
1362+ "If that does not work, go to https://elm-lang.org/community and ask for\
1363+ \ help. This is a weird case!"
1364+ ]
1365+
1366+ d:_ ->
1367+ case d of
1368+ BD_BadDownload pkg vsn packageProblem ->
1369+ toPackageProblemReport pkg vsn packageProblem
1370+
1371+ BD_BadBuild pkg vsn fingerprint ->
1372+ Help.report "PROBLEM BUILDING DEPENDENCIES" Nothing
1373+ "I ran into a compilation error when trying to build the following package:"
1374+ [ D.indent 4 $ D.red $ D.fromChars $ Pkg.toChars pkg ++ " " ++ V.toChars vsn
1375+ , D.reflow $
1376+ "This probably means it has package constraints that are too wide. It may be\
1377+ \ possible to tweak your elm.json to avoid the root problem as a stopgap. Head\
1378+ \ over to https://elm-lang.org/community to get help figuring out how to take\
1379+ \ this path!"
1380+ , D.toSimpleNote $
1381+ "To help with the root problem, please report this to the package author along\
1382+ \ with the following information:"
1383+ , D.indent 4 $ D.vcat $
1384+ map (\(p,v) -> D.fromChars $ Pkg.toChars p ++ " " ++ V.toChars v) $
1385+ Map.toList fingerprint
1386+ , D.reflow $
1387+ "If you want to help out even more, try building the package locally. That should\
1388+ \ give you much more specific information about why this package is failing to\
1389+ \ build, which will in turn make it easier for the package author to fix it!"
1390+ ]
1391+
1392+
1393+toBadDepRank :: DetailsBadDep -> Int -- lower is better
1394+toBadDepRank badDep =
1395+ case badDep of
1396+ BD_BadDownload _ _ _ -> 0
1397+ BD_BadBuild _ _ _ -> 1
1398+
1399+
1400+
1401+-- PACKAGE PROBLEM
1402+
1403+
1404+data PackageProblem
1405+ = PP_BadEndpointRequest Http.Error
1406+ | PP_BadEndpointContent String
1407+ | PP_BadArchiveRequest Http.Error
1408+ | PP_BadArchiveContent String
1409+ | PP_BadArchiveHash String String String
1410+
1411+
1412+toPackageProblemReport :: Pkg.Name -> V.Version -> PackageProblem -> Help.Report
1413+toPackageProblemReport pkg vsn problem =
1414+ let
1415+ thePackage =
1416+ Pkg.toChars pkg ++ " " ++ V.toChars vsn
1417+ in
1418+ case problem of
1419+ PP_BadEndpointRequest httpError ->
1420+ toHttpErrorReport "PROBLEM DOWNLOADING PACKAGE" httpError $
1421+ "I need to find the latest download link for " ++ thePackage
1422+
1423+ PP_BadEndpointContent url ->
1424+ Help.report "PROBLEM DOWNLOADING PACKAGE" Nothing
1425+ (
1426+ "I need to find the latest download link for " ++ thePackage ++ ", but I ran into corrupted information from:"
1427+ )
1428+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
1429+ , D.reflow $
1430+ "Is something weird with your internet connection. We have gotten reports that\
1431+ \ schools, businesses, airports, etc. sometimes intercept requests and add things\
1432+ \ to the body or change its contents entirely. Could that be the problem?"
1433+ ]
1434+
1435+ PP_BadArchiveRequest httpError ->
1436+ toHttpErrorReport "PROBLEM DOWNLOADING PACKAGE" httpError $
1437+ "I was trying to download the source code for " ++ thePackage
1438+
1439+ PP_BadArchiveContent url ->
1440+ Help.report "PROBLEM DOWNLOADING PACKAGE" Nothing
1441+ (
1442+ "I downloaded the source code for " ++ thePackage ++ " from:"
1443+ )
1444+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
1445+ , D.reflow $
1446+ "But I was unable to unzip the data. Maybe there is something weird with\
1447+ \ your internet connection. We have gotten reports that schools, businesses,\
1448+ \ airports, etc. sometimes intercept requests and add things to the body or\
1449+ \ change its contents entirely. Could that be the problem?"
1450+ ]
1451+
1452+ PP_BadArchiveHash url expectedHash actualHash ->
1453+ Help.report "CORRUPT PACKAGE DATA" Nothing
1454+ (
1455+ "I downloaded the source code for " ++ thePackage ++ " from:"
1456+ )
1457+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
1458+ , D.reflow "But it looks like the hash of the archive has changed since publication:"
1459+ , D.vcat $ map D.fromChars $
1460+ [ " Expected: " ++ expectedHash
1461+ , " Actual: " ++ actualHash
1462+ ]
1463+ , D.reflow $
1464+ "This usually means that the package author moved the version\
1465+ \ tag, so report it to them and see if that is the issue. Folks\
1466+ \ on Elm slack can probably help as well."
1467+ ]
1468+
1469+
1470+
1471+-- REGISTRY PROBLEM
1472+
1473+
1474+data RegistryProblem
1475+ = RP_Http Http.Error
1476+ | RP_Data String BS.ByteString
1477+
1478+
1479+toRegistryProblemReport :: String -> RegistryProblem -> String -> Help.Report
1480+toRegistryProblemReport title problem context =
1481+ case problem of
1482+ RP_Http err ->
1483+ toHttpErrorReport title err context
1484+
1485+ RP_Data url body ->
1486+ Help.report title Nothing (context ++ ", so I fetched:")
1487+ [ D.indent 4 $ D.dullyellow $ D.fromChars url
1488+ , D.reflow $
1489+ "I got the data back, but it was not what I was expecting. The response\
1490+ \ body contains " ++ show (BS.length body) ++ " bytes. Here is the "
1491+ ++ if BS.length body <= 76 then "whole thing:" else "beginning:"
1492+ , D.indent 4 $ D.dullyellow $ D.fromChars $
1493+ if BS.length body <= 76
1494+ then BS_UTF8.toString body
1495+ else take 73 (BS_UTF8.toString body) ++ "..."
1496+ , D.reflow $
1497+ "Does this error keep showing up? Maybe there is something weird with your\
1498+ \ internet connection. We have gotten reports that schools, businesses,\
1499+ \ airports, etc. sometimes intercept requests and add things to the body\
1500+ \ or change its contents entirely. Could that be the problem?"
1501+ ]
1502+
1503+
1504+toHttpErrorReport :: String -> Http.Error -> String -> Help.Report
1505+toHttpErrorReport title err context =
1506+ let
1507+ toHttpReport intro url details =
1508+ Help.report title Nothing intro $
1509+ D.indent 4 (D.dullyellow (D.fromChars url)) : details
1510+ in
1511+ case err of
1512+ Http.BadUrl url reason ->
1513+ toHttpReport (context ++ ", so I wanted to fetch:") url
1514+ [ D.reflow $ "But my HTTP library is saying this is not a valid URL. It is saying:"
1515+ , D.indent 4 $ D.fromChars reason
1516+ , D.reflow $
1517+ "This may indicate that there is some problem in the compiler, so please open an\
1518+ \ issue at https://github.com/elm/compiler/issues listing your operating system, Elm\
1519+ \ version, the command you ran, the terminal output, and any additional information\
1520+ \ that might help others reproduce the error."
1521+ ]
1522+
1523+ Http.BadHttp url httpExceptionContent ->
1524+ case httpExceptionContent of
1525+ HTTP.StatusCodeException response body ->
1526+ let
1527+ (HTTP.Status code message) = HTTP.responseStatus response
1528+ in
1529+ toHttpReport (context ++ ", so I tried to fetch:") url
1530+ [ D.fillSep $
1531+ ["But","it","came","back","as",D.red (D.fromInt code)]
1532+ ++ map D.fromChars (words (BS_UTF8.toString message))
1533+ , D.indent 4 $ D.reflow $ BS_UTF8.toString body
1534+ , D.reflow $
1535+ "This may mean some online endpoint changed in an unexpected way, so if does not\
1536+ \ seem like something on your side is causing this (e.g. firewall) please report\
1537+ \ this to https://github.com/elm/compiler/issues with your operating system, Elm\
1538+ \ version, the command you ran, the terminal output, and any additional information\
1539+ \ that can help others reproduce the error!"
1540+ ]
1541+
1542+ HTTP.TooManyRedirects responses ->
1543+ toHttpReport (context ++ ", so I tried to fetch:") url
1544+ [ D.reflow $ "But I gave up after following these " ++ show (length responses) ++ " redirects:"
1545+ , D.indent 4 $ D.vcat $ map toRedirectDoc responses
1546+ , D.reflow $
1547+ "Is it possible that your internet connection intercepts certain requests? That\
1548+ \ sometimes causes problems for folks in schools, businesses, airports, hotels,\
1549+ \ and certain countries. Try asking for help locally or in a community forum!"
1550+ ]
1551+
1552+ otherException ->
1553+ toHttpReport (context ++ ", so I tried to fetch:") url
1554+ [ D.reflow $ "But my HTTP library is giving me the following error message:"
1555+ , D.indent 4 $ D.fromChars (show otherException)
1556+ , D.reflow $
1557+ "Are you somewhere with a slow internet connection? Or no internet?\
1558+ \ Does the link I am trying to fetch work in your browser? Maybe the\
1559+ \ site is down? Does your internet connection have a firewall that\
1560+ \ blocks certain domains? It is usually something like that!"
1561+ ]
1562+
1563+ Http.BadMystery url someException ->
1564+ toHttpReport (context ++ ", so I tried to fetch:") url
1565+ [ D.reflow $ "But I ran into something weird! I was able to extract this error message:"
1566+ , D.indent 4 $ D.fromChars (show someException)
1567+ , D.reflow $
1568+ "Is it possible that your internet connection intercepts certain requests? That\
1569+ \ sometimes causes problems for folks in schools, businesses, airports, hotels,\
1570+ \ and certain countries. Try asking for help locally or in a community forum!"
1571+ ]
1572+
6511573
652− DetailsCannotBuildPackage name version problem ->
653− error "TODO DetailsCannotBuildPackage" name version problem
1574+toRedirectDoc :: HTTP.Response body -> D.Doc
1575+toRedirectDoc response =
1576+ let
1577+ (HTTP.Status code message) = HTTP.responseStatus response
1578+ in
1579+ case List.lookup HTTP.hLocation (HTTP.responseHeaders response) of
1580+ Just loc -> D.red (D.fromInt code) <> " - " <> D.fromChars (BS_UTF8.toString loc)
1581+ Nothing -> D.red (D.fromInt code) <> " - " <> D.fromChars (BS_UTF8.toString message)
1582+
1583+
1584+
1585+-- MAKE
1586+
1587+
1588+data Make
1589+ = MakeNoOutline
1590+ | MakeCannotOptimizeAndDebug
1591+ | MakeBadDetails Details
1592+ | MakeAppNeedsFileNames
1593+ | MakePkgNeedsExposing
1594+ | MakeMultipleFilesIntoHtml
1595+ | MakeNoMain
1596+ | MakeNonMainFilesIntoJavaScript ModuleName.Raw [ModuleName.Raw]
1597+ | MakeCannotBuild BuildProblem
1598+ | MakeBadGenerate Generate
6541599
6551600
6561601makeToReport :: Make -> Help.Report
6571602makeToReport make =
6581603 case make of
659− MakeNeedsOutline ->
1604+ MakeNoOutline ->
6601605 Help.report "NO elm.json FILE" Nothing
6611606 "It looks like you are starting a new Elm project. Very exciting! Try running:"
6621607 [ D.indent 4 $ D.green $ "elm init"
@@ -677,27 +1622,344 @@ makeToReport make =
6771622 \ at once though! Pick just one of those flags and it should work!"
6781623 ]
6791624
680− MakeBlockedByDetailsProblem detailsProblem ->
681− detailsToReport detailsProblem
1625+ MakeBadDetails detailsProblem ->
1626+ toDetailsReport detailsProblem
6821627
6831628 MakeAppNeedsFileNames ->
6841629 Help.report "NO INPUT" Nothing
685− "What should I make though? I need a specific file like this:"
686− [ D.indent 4 $ D.green "elm make src/Main.elm"
687− , D.reflow
688− "However many files you give, I will create one JS file out of them."
1630+ "What should I make though? I need specific files like:"
1631+ [ D.vcat
1632+ [ D.indent 4 $ D.green "elm make src/Main.elm"
1633+ , D.indent 4 $ D.green "elm make src/This.elm src/That.elm"
1634+ ]
1635+ , D.reflow $
1636+ "I recommend reading through https://guide.elm-lang.org for guidance on what to\
1637+ \ actually put in those files!"
6891638 ]
6901639
6911640 MakePkgNeedsExposing ->
692− error "TODO MakePkgNeedsExposing"
1641+ Help.report "NO INPUT" Nothing
1642+ "What should I make though? I need specific files like:"
1643+ [ D.vcat
1644+ [ D.indent 4 $ D.green "elm make src/Main.elm"
1645+ , D.indent 4 $ D.green "elm make src/This.elm src/That.elm"
1646+ ]
1647+ , D.reflow $
1648+ "You can also entries to the \"exposed-modules\" list in your elm.json file, and\
1649+ \ I will try to compile the relevant files."
1650+ ]
6931651
6941652 MakeMultipleFilesIntoHtml ->
695− error "TODO MakeMultipleFilesIntoHtml"
1653+ Help.report "TOO MANY FILES" Nothing
1654+ (
1655+ "When producing an HTML file, I can only handle one file."
1656+ )
1657+ [ D.fillSep
1658+ ["Switch","to",D.dullyellow "--output=/dev/null","if","you","just","want"
1659+ ,"to","get","compile","errors.","This","skips","the","code","gen","phase,"
1660+ ,"so","it","can","be","a","bit","faster","than","other","options","sometimes."
1661+ ]
1662+ , D.fillSep
1663+ ["Switch","to",D.dullyellow "--output=elm.js","if","you","want","multiple"
1664+ ,"`main`","values","available","in","a","single","JavaScript","file.","Then"
1665+ ,"you","can","make","your","own","customized","HTML","file","that","embeds"
1666+ ,"multiple","Elm","nodes.","The","generated","JavaScript","also","shares"
1667+ ,"dependencies","between","modules,","so","it","should","be","smaller","than"
1668+ ,"compiling","each","module","separately."
1669+ ]
1670+ ]
6961671
697− MakeNonMainFilesIntoJavaScript _ _ ->
698− error "TODO MakeNonMainFilesIntoJavaScript"
1672+ MakeNoMain ->
1673+ Help.report "NO MAIN" Nothing
1674+ (
1675+ "When producing an HTML file, I require that the given file has a `main` value.\
1676+ \ That way I have something to show on screen!"
1677+ )
1678+ [ D.reflow $
1679+ "Try adding a `main` value to your file? Or if you just want to verify that this\
1680+ \ module compiles, switch to --output=/dev/null to skip the code gen phase\
1681+ \ altogether."
1682+ , D.toSimpleNote $
1683+ "Adding a `main` value can be as brief as adding something like this:"
1684+ , D.vcat
1685+ [ D.fillSep [D.cyan "import","Html"]
1686+ , ""
1687+ , D.fillSep [D.green "main","="]
1688+ , D.indent 2 $ D.fillSep [D.cyan "Html" <> ".text",D.dullyellow "\"Hello!\""]
1689+ ]
1690+ , D.reflow $
1691+ "From there I can create an HTML file that says \"Hello!\" on screen. I recommend\
1692+ \ looking through https://guide.elm-lang.org for more guidance on how to fill in\
1693+ \ the `main` value."
1694+ ]
6991695
700− MakeCannotOptimizeDebugValues m ms ->
1696+ MakeNonMainFilesIntoJavaScript m ms ->
1697+ case ms of
1698+ [] ->
1699+ Help.report "NO MAIN" Nothing
1700+ (
1701+ "When producing a JS file, I require that the given file has a `main` value. That\
1702+ \ way Elm." ++ ModuleName.toChars m ++ ".init() is definitely defined in the\
1703+ \ resulting file!"
1704+ )
1705+ [ D.reflow $
1706+ "Try adding a `main` value to your file? Or if you just want to verify that this\
1707+ \ module compiles, switch to --output=/dev/null to skip the code gen phase\
1708+ \ altogether."
1709+ , D.toSimpleNote $
1710+ "Adding a `main` value can be as brief as adding something like this:"
1711+ , D.vcat
1712+ [ D.fillSep [D.cyan "import","Html"]
1713+ , ""
1714+ , D.fillSep [D.green "main","="]
1715+ , D.indent 2 $ D.fillSep [D.cyan "Html" <> ".text",D.dullyellow "\"Hello!\""]
1716+ ]
1717+ , D.reflow $
1718+ "Or use https://package.elm-lang.org/packages/elm/core/latest/Platform#worker to\
1719+ \ make a `main` with no user interface."
1720+ ]
1721+
1722+ _:_ ->
1723+ Help.report "NO MAIN" Nothing
1724+ (
1725+ "When producing a JS file, I require that given files all have `main` values.\
1726+ \ That way functions like Elm." ++ ModuleName.toChars m ++ ".init() are\
1727+ \ definitely defined in the resulting file. I am missing `main` values in:"
1728+ )
1729+ [ D.indent 4 $ D.red $ D.vcat $ map D.fromName (m:ms)
1730+ , D.reflow $
1731+ "Try adding a `main` value to them? Or if you just want to verify that these\
1732+ \ modules compile, switch to --output=/dev/null to skip the code gen phase\
1733+ \ altogether."
1734+ , D.toSimpleNote $
1735+ "Adding a `main` value can be as brief as adding something like this:"
1736+ , D.vcat
1737+ [ D.fillSep [D.cyan "import","Html"]
1738+ , ""
1739+ , D.fillSep [D.green "main","="]
1740+ , D.indent 2 $ D.fillSep [D.cyan "Html" <> ".text",D.dullyellow "\"Hello!\""]
1741+ ]
1742+ , D.reflow $
1743+ "Or use https://package.elm-lang.org/packages/elm/core/latest/Platform#worker to\
1744+ \ make a `main` with no user interface."
1745+ ]
1746+
1747+ MakeCannotBuild buildProblem ->
1748+ toBuildProblemReport buildProblem
1749+
1750+ MakeBadGenerate generateProblem ->
1751+ toGenerateReport generateProblem
1752+
1753+
1754+
1755+-- BUILD PROBLEM
1756+
1757+
1758+data BuildProblem
1759+ = BuildBadModules FilePath Error.Module [Error.Module]
1760+ | BuildProjectProblem BuildProjectProblem
1761+
1762+
1763+data BuildProjectProblem
1764+ = BP_PathUnknown FilePath
1765+ | BP_WithBadExtension FilePath
1766+ | BP_WithAmbiguousSrcDir FilePath FilePath FilePath
1767+ | BP_MainPathDuplicate FilePath FilePath
1768+ | BP_RootNameDuplicate ModuleName.Raw FilePath FilePath
1769+ | BP_RootNameInvalid FilePath FilePath [String]
1770+ | BP_CannotLoadDependencies
1771+ | BP_Cycle ModuleName.Raw [ModuleName.Raw]
1772+ | BP_MissingExposed (NE.List (ModuleName.Raw, Import.Problem))
1773+
1774+
1775+toBuildProblemReport :: BuildProblem -> Help.Report
1776+toBuildProblemReport problem =
1777+ case problem of
1778+ BuildBadModules root e es ->
1779+ Help.compilerReport root e es
1780+
1781+ BuildProjectProblem projectProblem ->
1782+ toProjectProblemReport projectProblem
1783+
1784+
1785+toProjectProblemReport :: BuildProjectProblem -> Help.Report
1786+toProjectProblemReport projectProblem =
1787+ case projectProblem of
1788+ BP_PathUnknown path ->
1789+ Help.report "FILE NOT FOUND" Nothing
1790+ "I cannot find this file:"
1791+ [ D.indent 4 $ D.red $ D.fromChars path
1792+ , D.reflow $ "Is there a typo?"
1793+ , D.toSimpleNote $
1794+ "If you are just getting started, try working through the examples in the\
1795+ \ official guide https://guide.elm-lang.org to get an idea of the kinds of things\
1796+ \ that typically go in a src/Main.elm file."
1797+ ]
1798+
1799+ BP_WithBadExtension path ->
1800+ Help.report "UNEXPECTED FILE EXTENSION" Nothing
1801+ "I can only compile Elm files (with a .elm extension) but you want me to compile:"
1802+ [ D.indent 4 $ D.red $ D.fromChars path
1803+ , D.reflow $ "Is there a typo? Can the file extension be changed?"
1804+ ]
1805+
1806+ BP_WithAmbiguousSrcDir path srcDir1 srcDir2 ->
1807+ Help.report "CONFUSING FILE" Nothing
1808+ "I am getting confused when I try to compile this file:"
1809+ [ D.indent 4 $ D.red $ D.fromChars path
1810+ , D.reflow $
1811+ "I always check if files appear in any of the \"source-directories\" listed in\
1812+ \ your elm.json to see if there might be some cached information about them. That\
1813+ \ can help me compile faster! But in this case, it looks like this file may be in\
1814+ \ either of these directories:"
1815+ , D.indent 4 $ D.red $ D.vcat $ map D.fromChars [srcDir1,srcDir2]
1816+ , D.reflow $
1817+ "Try to make it so no source directory contains another source directory!"
1818+ ]
1819+
1820+ BP_MainPathDuplicate path1 path2 ->
1821+ Help.report "CONFUSING FILES" Nothing
1822+ "You are telling me to compile these two files:"
1823+ [ D.indent 4 $ D.red $ D.vcat $ map D.fromChars [ path1, path2 ]
1824+ , D.reflow $
1825+ if path1 == path2 then
1826+ "Why are you telling me twice? Is something weird going on with a script?\
1827+ \ I figured I would let you know about it just in case something is wrong.\
1828+ \ Only list it once and you should be all set!"
1829+ else
1830+ "But seem to be the same file though... It makes me think something tricky is\
1831+ \ going on with symlinks in your project, so I figured I would let you know\
1832+ \ about it just in case. Remove one of these files from your command to get\
1833+ \ unstuck!"
1834+ ]
1835+
1836+ BP_RootNameDuplicate name outsidePath otherPath ->
1837+ Help.report "MODULE NAME CLASH" Nothing
1838+ "These two files are causing a module name clash:"
1839+ [ D.indent 4 $ D.red $ D.vcat $ map D.fromChars [ outsidePath, otherPath ]
1840+ , D.reflow $
1841+ "They both say `module " ++ ModuleName.toChars name ++ " exposing (..)` up\
1842+ \ at the top, but they cannot have the same name!"
1843+ , D.reflow $
1844+ "Try changing to a different module name in one of them!"
1845+ ]
1846+
1847+ BP_RootNameInvalid givenPath srcDir _ ->
1848+ Help.report "UNEXPECTED FILE NAME" Nothing
1849+ "I am having trouble with this file name:"
1850+ [ D.indent 4 $ D.red $ D.fromChars givenPath
1851+ , D.reflow $
1852+ "I found it in your " ++ FP.addTrailingPathSeparator srcDir ++ " directory\
1853+ \ which is good, but I expect all of the files in there to use the following\
1854+ \ module naming convention:"
1855+ , toModuleNameConventionTable srcDir [ "Main", "HomePage", "Http.Helpers" ]
1856+ , D.reflow $
1857+ "Notice that the names always start with capital letters! Can you make your file\
1858+ \ use this naming convention?"
1859+ , D.toSimpleNote $
1860+ "Having a strict naming convention like this makes it a lot easier to find\
1861+ \ things in large projects. If you see a module imported, you know where to look\
1862+ \ for the corresponding file every time!"
1863+ ]
1864+
1865+ BP_CannotLoadDependencies ->
1866+ corruptCacheReport
1867+
1868+ BP_Cycle name names ->
1869+ Help.report "IMPORT CYCLE" Nothing
1870+ "Your module imports form a cycle:"
1871+ [ D.cycle 4 name names
1872+ , D.reflow $
1873+ "Learn more about why this is disallowed and how to break cycles here:"
1874+ ++ D.makeLink "import-cycles"
1875+ ]
1876+
1877+ BP_MissingExposed (NE.List (name, problem) _) ->
1878+ case problem of
1879+ Import.NotFound ->
1880+ Help.report "MISSING MODULE" (Just "elm.json")
1881+ "The \"exposed-modules\" of your elm.json lists the following module:"
1882+ [ D.indent 4 $ D.red $ D.fromName name
1883+ , D.reflow $
1884+ "But I cannot find it in your src/ directory. Is there a typo? Was it renamed?"
1885+ ]
1886+
1887+ Import.Ambiguous _ _ pkg _ ->
1888+ Help.report "AMBIGUOUS MODULE NAME" (Just "elm.json")
1889+ "The \"exposed-modules\" of your elm.json lists the following module:"
1890+ [ D.indent 4 $ D.red $ D.fromName name
1891+ , D.reflow $
1892+ "But a module from " ++ Pkg.toChars pkg ++ " already uses that name. Try\
1893+ \ choosing a different name for your local file."
1894+ ]
1895+
1896+ Import.AmbiguousLocal path1 path2 paths ->
1897+ Help.report "AMBIGUOUS MODULE NAME" (Just "elm.json")
1898+ "The \"exposed-modules\" of your elm.json lists the following module:"
1899+ [ D.indent 4 $ D.red $ D.fromName name
1900+ , D.reflow $
1901+ "But I found multiple files with that name:"
1902+ , D.dullyellow $ D.indent 4 $ D.vcat $
1903+ map D.fromChars (path1:path2:paths)
1904+ , D.reflow $
1905+ "Change the module names to be distinct!"
1906+ ]
1907+
1908+ Import.AmbiguousForeign _ _ _ ->
1909+ Help.report "MISSING MODULE" (Just "elm.json")
1910+ "The \"exposed-modules\" of your elm.json lists the following module:"
1911+ [ D.indent 4 $ D.red $ D.fromName name
1912+ , D.reflow $
1913+ "But I cannot find it in your src/ directory. Is there a typo? Was it renamed?"
1914+ , D.toSimpleNote $
1915+ "It is not possible to \"re-export\" modules from other packages. You can only\
1916+ \ expose modules that you define in your own code."
1917+ ]
1918+
1919+
1920+toModuleNameConventionTable :: FilePath -> [String] -> D.Doc
1921+toModuleNameConventionTable srcDir names =
1922+ let
1923+ toPair name =
1924+ ( name
1925+ , srcDir </> map (\c -> if c == '.' then FP.pathSeparator else c) name <.> "elm"
1926+ )
1927+
1928+ namePairs = map toPair names
1929+ nameWidth = maximum (11 : map (length . fst) namePairs)
1930+ pathWidth = maximum ( 9 : map (length . snd) namePairs)
1931+
1932+ padded width str =
1933+ str ++ replicate (width - length str) ' '
1934+
1935+ toRow (name, path) =
1936+ D.fromChars $
1937+ "| " ++ padded nameWidth name ++ " | " ++ padded pathWidth path ++ " |"
1938+
1939+ bar =
1940+ D.fromChars $
1941+ "+-" ++ replicate nameWidth '-' ++ "-+-" ++ replicate pathWidth '-' ++ "-+"
1942+ in
1943+ D.indent 4 $ D.vcat $
1944+ [ bar, toRow ("Module Name", "File Path"), bar ] ++ map toRow namePairs ++ [ bar ]
1945+
1946+
1947+
1948+-- GENERATE
1949+
1950+
1951+data Generate
1952+ = GenerateCannotLoadArtifacts
1953+ | GenerateCannotOptimizeDebugValues ModuleName.Raw [ModuleName.Raw]
1954+
1955+
1956+toGenerateReport :: Generate -> Help.Report
1957+toGenerateReport problem =
1958+ case problem of
1959+ GenerateCannotLoadArtifacts ->
1960+ corruptCacheReport
1961+
1962+ GenerateCannotOptimizeDebugValues m ms ->
7011963 Help.report "DEBUG REMNANTS" Nothing
7021964 "There are uses of the `Debug` module in the following modules:"
7031965 [ D.indent 4 $ D.red $ D.vcat $ map (D.fromChars . ModuleName.toChars) (m:ms)
@@ -706,7 +1968,7 @@ makeToReport make =
7061968 "The issue is that --optimize strips out info needed by `Debug` functions.\
7071969 \ Here are two examples:"
7081970 , D.indent 4 $ D.reflow $
709− "(1) It shortens record field names. This makes the generated JavaScript is\
1971+ "(1) It shortens record field names. This makes the generated JavaScript\
7101972 \ smaller, but `Debug.toString` cannot know the real field names anymore."
7111973 , D.indent 4 $ D.reflow $
7121974 "(2) Values like `type Height = Height Float` are unboxed. This reduces\
@@ -719,28 +1981,89 @@ makeToReport make =
7191981 \ exists!"
7201982 ]
7211983
722− MakeCannotBuild buildProblem ->
723− case buildProblem of
724− BuildProjectProblem bp ->
725− case bp of
726− BP_PathUnknown _ -> error "TODO BP_PathUnknown"
727− BP_WithBadExtension _ -> error "TODO BP_WithBadExtension"
728− BP_WithAmbiguousSrcDir _ _ -> error "TODO BP_WithAmbiguousSrcDir"
729− BP_MainPathDuplicate _ _ -> error "TODO BP_MainPathDuplicate"
730− BP_MainNameDuplicate _ _ _ -> error "TODO BP_MainNameDuplicate"
731− BP_CannotLoadDependencies -> error "TODO BP_CannotLoadDependencies"
732− BP_Cycle name names ->
733− Help.report "IMPORT CYCLE" Nothing
734− "Your module imports form a cycle:"
735− [ D.cycle 4 name names
736− , D.reflow $
737− "Learn more about why this is disallowed and how to break cycles here:"
738− ++ D.makeLink "import-cycles"
739− ]
7401984
7411985
742− BuildModuleProblems p ps ->
743− error "TODO MakeCannotBuild" p ps
1986+-- CORRUPT CACHE
1987+
1988+
1989+corruptCacheReport :: Help.Report
1990+corruptCacheReport =
1991+ Help.report "CORRUPT CACHE" Nothing
1992+ "It looks like some of the information cached in elm-stuff/ has been corrupted."
1993+ [ D.reflow $
1994+ "Try deleting your elm-stuff/ directory to get unstuck."
1995+ , D.toSimpleNote $
1996+ "This almost certainly means that a 3rd party tool (or editor plugin) is\
1997+ \ causing problems your the elm-stuff/ directory. Try disabling 3rd party tools\
1998+ \ one by one until you figure out which it is!"
1999+ ]
2000+
2001+
2002+
2003+-- REACTOR
2004+
2005+
2006+data Reactor
2007+ = ReactorNoOutline
2008+ | ReactorBadDetails Details
2009+ | ReactorBadBuild BuildProblem
2010+ | ReactorBadGenerate Generate
2011+
2012+
2013+reactorToReport :: Reactor -> Help.Report
2014+reactorToReport problem =
2015+ case problem of
2016+ ReactorNoOutline ->
2017+ Help.report "NEW PROJECT?" Nothing
2018+ "Are you trying to start a new project? Try this command in the terminal:"
2019+ [ D.indent 4 $ D.green "elm init"
2020+ , D.reflow "It will help you get started!"
2021+ ]
2022+
2023+ ReactorBadDetails details ->
2024+ toDetailsReport details
2025+
2026+ ReactorBadBuild buildProblem ->
2027+ toBuildProblemReport buildProblem
2028+
2029+ ReactorBadGenerate generate ->
2030+ toGenerateReport generate
2031+
2032+
2033+
2034+-- REPL
2035+
2036+
2037+data Repl
2038+ = ReplBadDetails Details
2039+ | ReplBadInput BS.ByteString Error.Error
2040+ | ReplBadLocalDeps FilePath Error.Module [Error.Module]
2041+ | ReplProjectProblem BuildProjectProblem
2042+ | ReplBadGenerate Generate
2043+ | ReplBadCache
2044+ | ReplBlocked
2045+
2046+
2047+replToReport :: Repl -> Help.Report
2048+replToReport problem =
2049+ case problem of
2050+ ReplBadDetails details ->
2051+ toDetailsReport details
2052+
2053+ ReplBadInput source err ->
2054+ Help.compilerReport "/" (Error.Module N.replModule "REPL" File.zeroTime source err) []
2055+
2056+ ReplBadLocalDeps root e es ->
2057+ Help.compilerReport root e es
2058+
2059+ ReplProjectProblem projectProblem ->
2060+ toProjectProblemReport projectProblem
2061+
2062+ ReplBadGenerate generate ->
2063+ toGenerateReport generate
2064+
2065+ ReplBadCache ->
2066+ corruptCacheReport
7442067
745− MakeCannotLoadArtifacts ->
746− error "TODO MakeCannotLoadArtifacts"
2068+ ReplBlocked ->
2069+ corruptCacheReport