# skip-blame because this was mechanically rewritten the following script. I
ran it on both *.t and *.py, but none of the *.py changes were proper. All *.t
ones appear to be, and they run without addition failures on both Windows and
Linux.
import argparse
import os
import re
ap = argparse.ArgumentParser()
ap.add_argument('path', nargs='+')
opts = ap.parse_args()
globre = re.compile(r'^(.*) \(glob\)(.*)$')
for p in opts.path:
tmp = p + '.tmp'
with open(p, 'rb') as src, open(tmp, 'wb') as dst:
for line in src:
m = globre.match(line)
if not m or '$LOCALIP' in line or '*' in line:
dst.write(line)
continue
if '?' in line[:-3] or ('?' in line[:-3] and line[-3:] != '(?)'):
dst.write(line)
continue
dst.write(m.group(1) + m.group(2) + '\n')
os.unlink(p)
os.rename(tmp, p)
Automatic replacement seems better than trying to figure out a check-code rule.
I didn't bother looking to see why the error message and file name is reversed
in the annotate and histedit tests, based on Windows or not.
I originally had this as a list of tuples, conditional on the platform. But
there are a couple of 'No such file or directory' messages emitted by Mercurial
itself, so unconditional is required for stability. There are also several
variants of what I assume is 'connection refused' and 'unknown host' in
test-clone.t and test-clonebundles.t for Docker, FreeBSD jails, etc. Yes, these
are handled by (re) tags, but maybe it would be better to capture those strings
in order to avoid whack-a-mole in future tests. All of this points to using a
dictionary containing one or more strings-to-be-replaced values.
Upon pull or unbundle, we display a message with the range of new revisions
fetched. This revision range could readily be used after a pull to look out
what's new with 'hg log'. The algorithm takes care of filtering "obsolete"
revisions that might be present in transaction's "changes" but should not be
displayed to the end user.
Currently when we have multiple heads on the same branch, update tells us that
there some more heads for the current branch but does not tells us the head to
which the repository has been updated to. It makes more sense showing the
head we updated to and then telling there are some more heads.
When this test was introduced, it used the short-form of all the flags
on this update invocation. I suspect, based on the "start with clean
dirstates" comment and the fact that the no-exec branch of the #if
guard leaves dirstate clean, that this should have been 'update -qCr'
instead of 'update -qcr', but that a bug in largefiles --check
handling left this problem unnoticed.
I'll leave a breadcrumb further up about the current failure mode in
the hopes that we can fix this some day.
This was previously discussed in [0] but the trail in that thread goes
cold after a few replies. Given that this is still a flaky test, that
appears to only be passing by bad fortune, I think it's worth
correcting the code of the test to make a correct assertion, and to
keep track of the suspected bug with some other mechanism than an
invalid test (if we had support for "expected failure" blocks this
might be a worthwhile use of them?).
0: https://www.mercurial-scm.org/pipermail/mercurial-devel/2016-October/089501.html
I spent some time confused by this test. I'm pretty sure that this
line intends to be cleaning the dirstate, not checking that it's clean
before updating: the preceding #if block leaves the dirstate clean in
the noexec case, and dirty in the exec case, so we can't expect
consistent behavior across that platform variation. A subsequent patch
will modify this command to use --clean instead of --check.
I'll elaborate in that patch about the hypothetical bug here.
test-largefiles-update.t creates temporary file exec-bit.patch inside
the working directory for no-execbit platform specific test, but
subsequent tests aren't aware of it.
On execbit platform, subsequent tests can run successfully, because
exec-bit.patch isn't created.
But on no-execbit platform, this temporary file makes subsequent tests
show "? exec-bit.patch" at each "hg status".
A code snippet that has been around since largefiles was introduced was wrong:
Standins no longer found in lfdirstate has *not* been removed -
they have probably just been deleted ... or not created.
This wrong reporting did that 'up -C' didn't undo the change and didn't sync
the two dirstates.
Instead of reporting such files as removed, propagate the deletion to the
standin file and report the file as deleted.
Largefiles are fragile with the design where dirstate and lfdirstate must be
kept in sync.
To be less fragile, mark all clean largefiles as unsure ("normallookup") before
updating standins. After standins have been updated and we know exactly which
largefile standins actually was changed, mark the unchanged largefiles back to
clean ("normal").
This will make the failure mode more safe. If interrupted, the next command
will continue to perform extra hashing of all largefiles. That will do that all
largefiles that are out of sync with their standin will be marked dirty and
they will show up in status and can be cleaned with update --clean.
Test using existing changesets in a clean working directory, revealing problems
with files that don't show up as modified or do show up as removed when they
just not have been written yet.
Now that we store and display merge labels in user prompts (not just
conflict markets), we should rely on labels to clarify the two sides of a
merge operation (hg merge, hg update, hg rebase etc).
"remote" is not a great name here, as it conflates "remote" as in "remote
server" with "remote" as in "the side of the merge that's further away". In
cases where you're merging the "wrong way" around, remote can even be the
"local" commit that you're merging with something pulled from the remote
server.
Now that we persist the labels, we can consistently use the labels in
prompts for the user without risk of confusion. This changes a huge amount
of command output:
This means that merge prompts like:
no tool found to merge a
keep (l)ocal, take (o)ther, or leave (u)nresolved? u
and
remote changed a which local deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? c
become:
no tool found to merge a
keep (l)ocal [working copy], take (o)ther [destination], or leave (u)nresolved? u
and
remote [source] changed a which local [dest] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? c
where "working copy" and "destination" were supplied by the command that
requested the merge as labels for conflict markers, and thus should be
human-friendly.
Before this patch, some tests using external "diff" command via
extdiff extension fail on Solaris, because of incompatibility of
"diff" command and its output.
For example, system standard "diff" (= /usr/bin/diff) on Solaris
differs from GNU diff in points below:
- "-N" (treat absent files as empty) option isn't supported
- files are examined not in dictionary order
(maybe, in order in storage)
This patch introduces portable diff script "pdiff" and make tests use
it via extdiff extension.
For portability of tests, this patch invokes "pdiff" script with
explicit "sh", because standard shell of runtime platform ("cmd.exe"
on Windows) is used at first to invoke external diff command.
Before this patch, some tests using external "diff" command via
extdiff extension fail on Solaris, because system standard "diff" (=
/usr/bin/diff) on Solaris always formats chunk header in the style
below:
@@ -X.x +Y.y @@
even though "diff" on Linux sometimes omits ".x" and/or ".y" in it.
This patch makes chunk header of external diff glob-ed for portability
of tests, and adds check-code.py rules to detect such diff output in
tests.
This patch also changes "hg diff" output in test-subrepo-git to
simplify detection rules, even though it is certainly portable because
these lines are generated by "git" command.
This patch is a part of making tests using external "diff" portable,
and tests below aren't yet portable even after this patch.
test-largefiles-update.t
test-subrepo-deep-nested-change.t
Before this patch, some tests using external "diff" command via
extdiff extension fail on Solaris, because "-p" (show which C function
each change is in) option isn't supported by system standard "diff" on
Solaris, even though extdiff passes it to external "diff" by default.
Fortunately, this non-portable option isn't important for (current, at
least) tests using external "diff" command via extdiff extension.
This patch omits "-p" for external "diff" command via extdiff
extension for portability of tests, and adds check-code.py a rule to
detect invocation of "diff" with "-p".
Newly added check-code.py rule examines only lines generated by
external "diff" with "-r", because strict examination might
misidentify "hg diff -p" or other complicated lines consisting of
"diff" string as wrong one.
This patch is a part of making tests using external "diff" portable,
and tests below aren't yet portable even after this patch.
test-graft.t
test-largefiles-update.t
test-subrepo-deep-nested-change.t
A concern around the user experience of Mercurial is user getting stuck on there
own topological branch forever. For example, someone pulling another topological
branch, missing that message in pull asking them to merge and getting stuck on
there own local branch.
The current way to "address" this concern was for bare 'hg update' to target the
tipmost (also latest pulled) changesets and complain when the update was not
linear. That way, failure to merge newly pulled changesets would result in some
kind of failure.
Yet the failure was quite obscure, not working in all cases (eg: commit right
after pull) and the behavior was very impractical in the common case
(eg: issue4673).
To be able to change that behavior, we need to provide other ways to alert a
user stucks on one of many topological head. We do so with an extra message after
bare update:
1 other heads for branch "default"
Bookmark get its own special version:
1 other divergent bookmarks for "foobar"
There is significant room to improve the message itself, and we should augment
it with hint about how to see theses other heads or handle the situation (see
in-line comment). But having "a" message is already a significant improvement
compared to the existing situation. Once we have it we can iterate on a better
version of it. As having such message is an important step toward changing the
default destination for update and other nicety, I would like to move forward
quickly on getting such message.
This was discussed during London - October 2015 Sprint.
92117e4f6f8d improved merging of standin files referencing missing largefiles.
It did however not test or fix commits of such merges; it would abort.
To fix that, change copytostore to skip and warn about missing largefiles
with a message similar the one for failing get from remote filestores. (It
would perhaps in both cases be better to emit a more helpful warning like
"warning: standin file for large1 references 58e24f733a which can't be found in
the local store".)
To test this, make sure commit doesn't find the "missing" largefile in the global
usercache. For further testing, verify that update and status works as expected
after this.
This will also effectively backout 159c82dd6523.
On Solaris, when you try to mv a file to another path that is a hardlink to
the original, it complains that they're identical. GNU mv doesn't
complain, but it's simpler to just remove the original file instead.
Before, when merging revisions with missing largefiles, the missing largefiles
would be fetched as a part of the merge. If that failed (for example because
the main repository temporarily was unavailable), the largefile would be left
missing. However, the next commit would abort and (seemed to) fail when
markcommitted tried to mark the standin file as normal and thus had to hash the
largefile that didn't exist. (Actually, the commit would succeed but the
largefile update that follows right after the commit transaction would abort -
quite confusing.)
To fix that, make sure that synclfdirstate only marks files as normal if they
actually exist.
The current output for a failed merge with conflict markers looks something like:
merging foo
warning: conflicts during merge.
merging foo incomplete! (edit conflicts, then use 'hg resolve --mark')
merging bar
warning: conflicts during merge.
merging bar incomplete! (edit conflicts, then use 'hg resolve --mark')
We're going to change the way merges are done to perform all premerges before
all merges, so that the output above would look like:
merging foo
merging bar
warning: conflicts during merge.
merging foo incomplete! (edit conflicts, then use 'hg resolve --mark')
warning: conflicts during merge.
merging bar incomplete! (edit conflicts, then use 'hg resolve --mark')
The 'warning: conflicts during merge' line has no context, so is pretty
confusing.
This patch will change the future output to:
merging foo
merging bar
warning: conflicts while merging foo! (edit, then use 'hg resolve --mark')
warning: conflicts while merging bar! (edit, then use 'hg resolve --mark')
The hint on how to resolve the conflicts makes this a bit unwieldy, but solving
that is tricky because we already hint that people run 'hg resolve' to retry
unresolved merges. The 'hg resolve --mark' mostly applies to conflict marker
based resolution.
This is the last step before supporting extdiff -S. It maintains the existing
behavior of diffing the largefile standins instead of the largefiles themselves.
Note however that the standins are not updated immediately upon modification, so
uncommitted largefile changes are ignored, as they previously were, even with
the diff command.
'hg update' would hash all 'unsure' largefiles before performing the merge. It
would update the standins but not detect the very common case where the
largefile never had been changed by the user but just had been marked with an
invalid dirstate mtime to make sure any changes done by the user in the same
second would be detected. The largefile would remain in that state and would
have to be hashed again next time even though it still not had been changed.
Sad trombone.
Instead, for largefiles listed as 'unsure' or 'modified', after updating the
standin with the actual hash, mark the largefile as normal if it turns out to
not be modified relative to the revision in the parent revision. That will
prevent it from being hashed again next time.
The value of the dirstate date field cannot be used in tests and we thus have
to use debugdirstate with --nodate. It is however still very helpful to be able
to see whether the date field has been set or still is unset. The absence of
that information made it hard to debug some largefile dirstate issues.
This change _could_ make the test suite more unstable ... but that would be
places where the test suite or the code should be made more stable. (Note:
'unset' with the magic negative sizes is reliable. 'unset' for normal sizes
would probably not be reliable, but there is no such occurrences in the test
suite and it should thus be reliable.)
This output wastes more horizontal space in the --nodate output, but it also
makes things simpler that the output format always is the same. It is just a
debug command so let's keep it simple.
Previously, a backup bundle could overwrite an existing bundle and cause user
data loss. For instance, if you have A<-B<-C and strip B, it produces backup
bundle B-backup.hg. If you then hg pull -r B B-backup.hg and strip it again, it
overwrites the existing B-backup.hg and C is lost.
The fix is to add a hash of all the nodes inside that bundle to the filename.
Fixed up existing tests and added a new test in test-strip.t
d20af8be6a14 introduced a significant performance regression: All largefiles
were marked 'normallookup' by linear (or noop) updates and had to be rehashed
by the next command.
The previous change introduced a different solution to the problem d20af8be6a14
solved and we can thus back it out again.
d20af8be6a14 introduced a significant performance regression: All largefiles
are marked 'normallookup' in lfdirstate by linear (or noop) updates and has to
be rehashed by the next command.
To avoid such regressions, keep an eye on the dirstate content after a plain
'hg up'.
Changeset 5b64e22ecd8e introduced the examination of exec bit of
largefiles in "hg status --rev REV" case, but it doesn't avoid it on
the platform being unaware of exec-bit (e.g. on NTFS of Windows).
By moving the cd/dc prompts out of calculateupdates(), we let
largefiles' overridecalculateupdates() so the unresolved values
(i.e. 'cd' or 'dc' rather than 'g', 'r', 'a' and missing). This allows
overridecalculateupdates() to ask the user whether to keep the normal
file or the largefile before the user gets the cd/dc prompt. Whichever
answer the user gives, we make overridecalculateupdates() replace 'cd'
or 'dc' action, saving the user one annoying (and less clear)
question.
Show status messages while rebasing, similar to what graft do:
rebasing 12:2647734878ef "fork" (tip)
This gives more context for the user when resolving conflicts.
Before this patch, while "hg convert", largefiles avoids copying
largefiles in the working directory into the store area by combination
of setting "repo._isconverting" in "mercurialsink{before|after}" and
checking it in "copytostoreabsolute".
This avoiding is needed while "hg convert", because converting doesn't
update largefiles in the working directory.
But this implementation is not efficient, because:
- invocation in "markcommitted" can easily ensure updating
largefiles in the working directory
"markcommitted" is invoked only when new revision is committed via
"commit" of "localrepository" (= with files in the working
directory). On the other hand, "commitctx" may be invoked directly
for in-memory committing.
- committing without updating the working directory (e.g. "import
--bypass") also needs this kind of avoiding
For efficiency of this kind of avoiding, this patch does:
- move "copyalltostore" invocation into "markcommitted"
- remove meaningless procedures below:
- hooking "mercurialsink{before|after}" to (un)set "repo._isconverting"
- checking "repo._isconverting" in "copytostoreabsolute"
This patch invokes "copyalltostore" also in "_commitcontext", because
"_commitcontext" expects that largefiles in the working directory are
copied into store area after "commitctx". In this case, the working
directory is used as a kind of temporary area to write largefiles out,
even though converted revisions are committed via "commitctx" (without
updating normal files).
Before this patch, "hg transplant --continue" may record incorrect
standins, because largefiles extension always avoid updating standins
while transplanting, even though largefiles in the working directory
may be modified manually at the 1st commit of "hg transplant --continue".
But, on the other hand, updating standins should be avoided at
subsequent commits for efficiency reason.
To update standins only at the 1st commit of "hg transplant
--continue", this patch uses "automatedcommithook", which updates
standins by "lfutil.updatestandinsbymatch()" only at the 1st commit of
resuming.
Even after this patch, "repo._istransplanting = True" is still needed
to avoid some status report while updating largefiles in
"lfcommands.updatelfiles()".
This is reason why this patch omits not "repo._istransplanting = True"
in "overriderebase" but examination of "getattr(repo,
"_istransplanting", False)" in "updatestandinsbymatch".
Before this patch, "hg rebase --continue" may record incorrect
standins, because largefiles extension always avoid updating standins
while rebasing, even though largefiles in the working directory may be
modified manually at the 1st commit of "hg rebase --continue".
But, on the other hand, updating standins should be avoided at
subsequent commits for efficiency reason.
To update standins only at the 1st commit of "hg rebase --continue",
this patch introduces state-full callable object
"automatedcommithook", which updates standins by
"lfutil.updatestandinsbymatch()" only at the 1st commit of resuming.
Even after this patch, "repo._isrebasing = True" is still needed to
avoid some status report while updating largefiles in
"lfcommands.updatelfiles()".
This is reason why this patch omits not "repo._isrebasing = True" in
"overriderebase" but examination of "getattr(repo, "_isrebasing",
False)" in "updatestandinsbymatch".
Before this patch, "hg status --rev REV" doesn't list largefiles up
with "M" mark, even if exec bit of them is changed, because
"lfilesrepo.status" doesn't examine exec bit in such case.
Before this patch, "hg status --rev REV" listed largefiles removed in
the working directory up with "R" mark, even if they aren't managed in
the REV. Normal files aren't listed up in such case.
When "lfilesrepo.status" is invoked for "hg status --rev REV", it
treats files on conditions below as "removed" (to avoid manifest full
scan in "ctx.status" ?):
- marked as "R" in lfdirstate, or
- files managed in the target revision but unknown in the manifest
of the working context (= not including "R" files)
But the former can include files not managed in the target context.
To ignore removal status of files not managed in the target context,
this patch drops files unknown in the target revision from "removed"
list.
The tests often set ui.interactive to control normally interactive prompts from
stdin. That gave an output where it was non-obvious what prompts got which
which response, and the output lacked the newline users would see after input.
Instead, if the input not is a tty, write the selection and a newline.
Before this patch, largefiles in the working directory aren't updated
correctly, if transplant is aborted by conflict. This prevents users
from viewing appropriate largefiles while resolving conflicts.
While transplant, largefiles in the working directory are updated only
at successful committing in the special code path of
"lfilesrepo.commit()".
To update largefiles even if transplant is aborted by conflict, this
patch wraps "scmutil.marktouched", which is invoked from "patch.patch"
with "files" list of added/modified/deleted files.
This patch invokes "updatelfiles" with:
- "printmessage=False", to suppress "getting changed largefiles ..."
messages while automated committing by transplant
- "normallookup=True", because "patch.patch" doesn't update dirstate
for modified files
in such case, "normallookup=False" may cause marking modified
largefiles as "clean" unexpectedly
Before this patch, largefiles in the working directory aren't updated
correctly, if rebase is aborted by conflict. This prevents users from
viewing appropriate largefiles while resolving conflicts.
While rebase, largefiles in the working directory are updated only at
successful committing in the special code path of
"lfilesrepo.commit()".
To update largefiles even if rebase is aborted by conflict, this patch
centralizes the logic of updating largefiles in the working directory
into the "mergeupdate" wrapping "merge.update".
This is a temporary way to fix with less changes. For fundamental
resolution of this kind of problems in the future, largefiles in the
working directory should be updated with other (normal) files
simultaneously while "merge.update" execution: maybe by hooking
"applyupdates".
"Action list based updating" introduced by hooking "applyupdates" will
also improve performance of updating, because it automatically
decreases target files to be checked.
Just after this patch, there are some improper things in "Case 0" code
path of "lfilesrepo.commit()":
- "updatelfiles" invocation is redundant for rebase
- detailed comment doesn't meet to rebase behavior
These will be resolved after the subsequent patch for transplant,
because this code path is shared with transplant.
Even though replacing "merge.update" in rebase extension by "hg.merge"
can also avoid this problem, this patch chooses centralizing the logic
into "mergeupdate", because:
- "merge.update" invocation in rebase extension can't be directly
replaced by "hg.merge", because:
- rebase requires some extra arguments, which "hg.merge" doesn't
take (e.g. "ancestor")
- rebase doesn't require statistics information forcibly displayed
in "hg.merge"
- introducing "mergeupdate" can resolve also problem of some other
code paths directly using "merge.update"
largefiles in the working directory aren't updated regardless of
the result of commands below, before this patch:
- backout (for revisions other than the parent revision of the
working directory without "--merge")
- graft
- histedit (for revisions other than the parent of the working
directory
When "partial" is specified, "merge.update" doesn't update dirstate
entries for standins, even though standins themselves are updated.
In this case, "normallookup" should be used to mark largefiles as
"possibly dirty" forcibly, because applying "normal" on lfdirstate
treats them as "clean" unexpectedly.
This is reason why "normallookup=partial" is specified for
"lfcommands.updatelfiles".
This patch doesn't test "hg rebase --continue", because it doesn't
work correctly if largefiles in the working directory are modified
manually while resolving conflicts. This will be fixed in the next
step of refactoring for largefiles.
All changes of tests/*.t files other than test-largefiles-update.t in
this patch come from invoking "updatelfiles" not after but before
statistics output of "hg.update", "hg.clean" and "hg.merge".
Code paths below expect "hg.updaterepo" (or "hg.update" using it) to
execute linear merging:
- "update" in commands
- "postincoming" in commands, used for:
- "hg pull --update"
- "hg unbundle --update"
- "hgsubrepo.get" in subrepo
For linear merging with largefiles, standins should be updated
according to (possibly dirty) largefiles before "merge.update"
invocation to detect conflicts correctly.
Before this patch, only the "update" command can execute linear merging
correctly, because largefiles extension takes care of only it.
This patch moves "updatestandin" invocation from "overrideupdate" ("hg
update" wrapper) to "_hgupdaterepo" ("hg.updaterepo" wrapper) to
execute linear merging in "hg.updaterepo" correctly.
This is also a preparation to centralize the logic of updating
largefiles in the working directory into the function wrapping
"merge.update" in the subsequent patch.
Before this patch, standinds not known to the restored dirstate at
rollback still exist after rollback of the parent of the working
directory, and they become orphans unexpectedly.
This patch unlinks standins not known to the restored dirstate.
This patch saves names of standins matched against not
"repo.dirstate[f] == 'a'" but "repo.dirstate[f] != 'r'" before
rollback, because branch merging marks files newly added to
dirstate as not "a" but "n".
Such standins will also become orphan after rollback, because they are
not known to the restored dirstate.
