filectx: fix cmp() of file starting with '\1\n'
If file data starts with '\1\n', it will be escaped in the revlog to
create an empty metadata block, thus adding four bytes to the size in
the revlog size index. There's no way to detect that this has happened
in filelog.size() faster than decompressing each revision [1].
For filectx.cmp(), we have the size of the file in the working directory
available. If it differs by exactly four bytes, it may be this case, so
do a full comparison.
[1]: http://markmail.org/message/5akdbmmqx7vq2fsg
$ hg init repo
$ cd repo
$ echo 123 > a
$ echo 123 > c
$ echo 123 > e
$ hg add a c e
$ hg commit -m "first" a c e
nothing changed
$ hg revert
abort: no files or directories specified
(use --all to revert all files)
[255]
$ hg revert --all
$ echo 123 > b
should show b unknown
$ hg status
? b
$ echo 12 > c
should show b unknown and c modified
$ hg status
M c
? b
$ hg add b
should show b added and c modified
$ hg status
M c
A b
$ hg rm a
should show a removed, b added and c modified
$ hg status
M c
A b
R a
$ hg revert a
should show b added, copy saved, and c modified
$ hg status
M c
A b
$ hg revert b
should show b unknown, and c modified
$ hg status
M c
? b
$ hg revert --no-backup c
should show unknown: b
$ hg status
? b
$ hg add b
should show b added
$ hg status b
A b
$ rm b
should show b deleted
$ hg status b
! b
$ hg revert -v b
forgetting b
should not find b
$ hg status b
b: No such file or directory
should show a c e
$ ls
a
c
e
should verbosely save backup to e.orig
$ echo z > e
$ hg revert --all -v
saving current version of e as e.orig
reverting e
should say no changes needed
$ hg revert a
no changes needed to a
should say file not managed
$ echo q > q
$ hg revert q
file not managed: q
$ rm q
should say file not found
$ hg revert notfound
notfound: no such file in rev 334a9e57682c
$ touch d
$ hg add d
$ hg rm a
$ hg commit -m "second"
$ echo z > z
$ hg add z
$ hg st
A z
? e.orig
should add a, remove d, forget z
$ hg revert --all -r0
adding a
removing d
forgetting z
should forget a, undelete d
$ hg revert --all -rtip
forgetting a
undeleting d
$ rm a *.orig
should silently add a
$ hg revert -r0 a
$ hg st a
A a
$ hg rm d
$ hg st d
R d
should silently keep d removed
$ hg revert -r0 d
$ hg st d
R d
$ hg update -C
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ chmod +x c
$ hg revert --all
reverting c
should print non-executable
$ test -x c || echo non-executable
non-executable
$ chmod +x c
$ hg commit -m exe
$ chmod -x c
$ hg revert --all
reverting c
should print executable
$ test -x c && echo executable
executable
$ cd ..
Issue241: update and revert produces inconsistent repositories
$ hg init a
$ cd a
$ echo a >> a
$ hg commit -A -d '1 0' -m a
adding a
$ echo a >> a
$ hg commit -d '2 0' -m a
$ hg update 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ mkdir b
$ echo b > b/b
should fail - no arguments
$ hg revert -rtip
abort: no files or directories specified
(use --all to revert all files, or 'hg update 1' to update)
[255]
should succeed
$ hg revert --all -rtip
reverting a
Issue332: confusing message when reverting directory
$ hg ci -A -m b
adding b/b
created new head
$ echo foobar > b/b
$ mkdir newdir
$ echo foo > newdir/newfile
$ hg add newdir/newfile
$ hg revert b newdir
reverting b/b
forgetting newdir/newfile
$ echo foobar > b/b
$ hg revert .
reverting b/b
reverting a rename target should revert the source
$ hg mv a newa
$ hg revert newa
$ hg st a newa
? newa
$ cd ..
$ hg init ignored
$ cd ignored
$ echo '^ignored$' > .hgignore
$ echo '^ignoreddir$' >> .hgignore
$ echo '^removed$' >> .hgignore
$ mkdir ignoreddir
$ touch ignoreddir/file
$ touch ignoreddir/removed
$ touch ignored
$ touch removed
4 ignored files (we will add/commit everything)
$ hg st -A -X .hgignore
I ignored
I ignoreddir/file
I ignoreddir/removed
I removed
$ hg ci -qAm 'add files' ignored ignoreddir/file ignoreddir/removed removed
$ echo >> ignored
$ echo >> ignoreddir/file
$ hg rm removed ignoreddir/removed
should revert ignored* and undelete *removed
$ hg revert -a --no-backup
reverting ignored
reverting ignoreddir/file
undeleting ignoreddir/removed
undeleting removed
$ hg st -mardi
$ hg up -qC
$ echo >> ignored
$ hg rm removed
should silently revert the named files
$ hg revert --no-backup ignored removed
$ hg st -mardi