change default behavior to modify newlines; update readme

README.md

@@ -15,61 +15,31 @@ know.
 Run `ffs [mountpoint] [file]` to mount a file at a given mountpoint.
 
 ```shell-session
-$ ffs mnt json_eg1.json  &
-[1] 80762
-$ tree mnt
-mnt
-└── glossary
-    ├── GlossDiv
-    │   ├── GlossList
-    │   │   └── GlossEntry
-    │   │       ├── Abbrev
-    │   │       ├── Acronym
-    │   │       ├── GlossDef
-    │   │       │   ├── GlossSeeAlso
-    │   │       │   │   ├── 0
-    │   │       │   │   └── 1
-    │   │       │   └── para
-    │   │       ├── GlossSee
-    │   │       ├── GlossTerm
-    │   │       ├── ID
-    │   │       └── SortAs
-    │   └── title
-    └── title
+$ cat object.json 
+{ "name": "Michael Greenberg", "eyes": 2, "fingernails": 10, "human": true }
+$ ffs -o object_edited.json object.json &
+[1] 60182
+$ tree object
+object
+├── eyes
+├── fingernails
+├── human
+└── name
 
-6 directories, 11 files
-$ cat mnt/glossary/GlossDiv/GlossList/GlossEntry/Abbrev
-ISO 8879:1986$ cat mnt/glossary/GlossDiv/GlossList/GlossEntry/Acronym 
-SGML$ cat mnt/glossary/title 
-example glossary$ cat json_eg1.json 
-{
-    "glossary": {
-        "title": "example glossary",
-		"GlossDiv": {
-            "title": "S",
-			"GlossList": {
-                "GlossEntry": {
-                    "ID": "SGML",
-					"SortAs": "SGML",
-					"GlossTerm": "Standard Generalized Markup Language",
-					"Acronym": "SGML",
-					"Abbrev": "ISO 8879:1986",
-					"GlossDef": {
-                        "para": "A meta-markup language, used to create markup languages such as DocBook.",
-						"GlossSeeAlso": ["GML", "XML"]
-                    },
-					"GlossSee": "markup"
-                }
-            }
-        }
-    }
-}
-$ ps | grep ffs
-80762 ttys001    0:00.03 ffs mnt json_eg1.json
-80843 ttys001    0:00.00 grep ffs
-$ umount mnt
-[1]+  Done                    ffs mnt json_eg1.json
-$
+0 directories, 4 files
+$ echo Mikey Indiana >object/name
+$ echo 1 >object/nose
+$ mkdir object/pockets
+$ cd object/pockets/
+$ echo keys >pants
+$ echo pen >shirt
+$ cd ..
+$ cd ..
+$ umount object
+$ 
+[1]+  Done                    ffs -o object_edited.json object.json
+$ cat object_edited.json 
+{"eyes":2,"fingernails":10,"human":true,"name":"Mikey Indiana","nose":1,"pockets":{"pants":"keys","shirt":"pen"}}
 ```
 
 # External dependencies

src/config.rs

@@ -81,7 +81,7 @@ impl Default for Config {
             gid: 501,
             filemode: 0o644,
             dirmode: 0o755,
-            add_newlines: false,
+            add_newlines: true,
             pad_element_names: true,
             base64: base64::STANDARD,
             try_decode_base64: false,

src/format.rs

@@ -299,6 +299,7 @@ where
                 if fs.config.add_newlines && contents.ends_with('\n') {
                     contents.truncate(contents.len() - 1);
                 }
+                // TODO 2021-06-24 trim?
                 V::from_string(contents, &fs.config)
             }
             Err(_) => V::from_bytes(contents, &fs.config),

src/main.rs

@@ -62,9 +62,9 @@ fn main() {
                 .default_value("755")
         )
         .arg(
-            Arg::with_name("NEWLINE")
-                .help("Add a newline to the end of values that don't already have them")
-                .long("newline")
+            Arg::with_name("EXACT")
+                .help("Don't add newlines to the end of values that don't already have them (or strip them when loading)")
+                .long("exact")
         )
         .arg(
             Arg::with_name("UNPADDED")
@@ -145,7 +145,7 @@ fn main() {
             .init();
     }
 
-    config.add_newlines = args.is_present("NEWLINE");
+    config.add_newlines = !args.is_present("EXACT");
     config.pad_element_names = !args.is_present("UNPADDED");
     config.read_only = args.is_present("READONLY");
     config.filemode = match u16::from_str_radix(args.value_of("FILEMODE").unwrap(), 8) {

tests/basic_object_exact.sh

@@ -22,7 +22,7 @@ printf "10"                >"${EXP}/fingernails"
 printf "true"              >"${EXP}/human"
 printf ""                  >"${EXP}/problems"
 
-ffs -m "$MNT" ../json/object_null.json &
+ffs --exact -m "$MNT" ../json/object_null.json &
 PID=$!
 sleep 2
 cd "$MNT"

tests/basic_object_newline.sh

@@ -22,7 +22,7 @@ printf "10\n"                >"${EXP}/fingernails"
 printf "true\n"              >"${EXP}/human"
 printf ""                    >"${EXP}/problems"
 
-ffs --newline -m "$MNT" ../json/object_null.json &
+ffs -m "$MNT" ../json/object_null.json &
 PID=$!
 sleep 2
 cd "$MNT"

tests/exact_cleanup.sh

@@ -25,7 +25,7 @@ printf "true"              >"${EXP}/human"
 printf "hi\n"              >"${EXP}/greeting"
 printf "bye"               >"${EXP}/farewell"
 
-ffs -o "$JSON" -m "$MNT" ../json/object.json &
+ffs --exact -o "$JSON" -m "$MNT" ../json/object.json &
 PID=$!
 sleep 2
 echo hi >"$MNT"/greeting
@@ -34,8 +34,8 @@ umount "$MNT" || fail unmount
 sleep 1
 kill -0 $PID >/dev/null 2>&1 && fail process
 
-# remount w/o --newline, confirm that they're not there (except for greeting)
-ffs -m "$MNT" "$JSON" &
+# remount w/ --exact, confirm that they're not there (except for greeting)
+ffs --exact -m "$MNT" "$JSON" &
 sleep 2
 case $(ls "$MNT") in
     (eyes*farewell*fingernails*greeting*human*name) ;;

tests/newline_cleanup.sh

@@ -25,7 +25,7 @@ printf "true"              >"${EXP}/human"
 printf "hi"                >"${EXP}/greeting"
 printf "bye"               >"${EXP}/farewell"
 
-ffs --newline -o "$JSON" -m "$MNT" ../json/object.json &
+ffs -o "$JSON" -m "$MNT" ../json/object.json &
 PID=$!
 sleep 2
 echo hi >"$MNT"/greeting
@@ -34,8 +34,8 @@ umount "$MNT" || fail unmount
 sleep 1
 kill -0 $PID >/dev/null 2>&1 && fail process
 
-# remount w/o --newline, confirm that they're not there
-ffs -m "$MNT" "$JSON" &
+# remount w/ --exact, confirm that they're not there
+ffs --exact -m "$MNT" "$JSON" &
 sleep 2
 case $(ls "$MNT") in
     (eyes*farewell*fingernails*greeting*human*name) ;;