$ hg init t
$ cd t
$ cat > unix2dos.py <<EOF
> import sys
>
> for path in sys.argv[1:]:
> data = file(path, 'rb').read()
> data = data.replace('\n', '\r\n')
> file(path, 'wb').write(data)
> EOF
$ cat > print.py <<EOF
> import sys
> print(sys.stdin.read().replace('\n', '<LF>').replace('\r', '<CR>').replace('\0', '<NUL>'))
> EOF
$ echo '[hooks]' >> .hg/hgrc
$ echo 'pretxncommit.crlf = python:hgext.win32text.forbidcrlf' >> .hg/hgrc
$ echo 'pretxnchangegroup.crlf = python:hgext.win32text.forbidcrlf' >> .hg/hgrc
$ cat .hg/hgrc
[hooks]
pretxncommit.crlf = python:hgext.win32text.forbidcrlf
pretxnchangegroup.crlf = python:hgext.win32text.forbidcrlf
$ echo
$ echo hello > f
$ hg add f
commit should succeed
$ hg ci -m 1
$ echo
$ hg clone . ../zoz
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cp .hg/hgrc ../zoz/.hg
$ python unix2dos.py f
commit should fail
$ hg ci -m 2.1
Attempt to commit or push text file(s) using CRLF line endings
in f583ea08d42a: f
transaction abort!
rollback completed
abort: pretxncommit.crlf hook failed
[255]
$ echo
$ mv .hg/hgrc .hg/hgrc.bak
commits should succeed
$ hg ci -m 2
$ hg cp f g
$ hg ci -m 2.2
$ echo
push should fail
$ hg push ../zoz
pushing to ../zoz
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
Attempt to commit or push text file(s) using CRLF line endings
in bc2d09796734: g
in b1aa5cde7ff4: f
To prevent this mistake in your local repository,
add to Mercurial.ini or .hg/hgrc:
[hooks]
pretxncommit.crlf = python:hgext.win32text.forbidcrlf
and also consider adding:
[extensions]
win32text =
[encode]
** = cleverencode:
[decode]
** = cleverdecode:
transaction abort!
rollback completed
abort: pretxnchangegroup.crlf hook failed
[255]
$ echo
$ mv .hg/hgrc.bak .hg/hgrc
$ echo hello > f
$ hg rm g
commit should succeed
$ hg ci -m 2.3
$ echo
push should succeed
$ hg push ../zoz
pushing to ../zoz
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 2 files
$ echo
and now for something completely different
$ mkdir d
$ echo hello > d/f2
$ python unix2dos.py d/f2
$ hg add d/f2
$ hg ci -m 3
Attempt to commit or push text file(s) using CRLF line endings
in 053ba1a3035a: d/f2
transaction abort!
rollback completed
abort: pretxncommit.crlf hook failed
[255]
$ hg revert -a
forgetting d/f2
$ rm d/f2
$ echo
$ hg rem f
$ hg ci -m 4
$ echo
$ python -c 'file("bin", "wb").write("hello\x00\x0D\x0A")'
$ hg add bin
$ hg ci -m 5
$ hg log -v
changeset: 5:f0b1c8d75fce
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: bin
description:
5
changeset: 4:77796dbcd4ad
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
4
changeset: 3:7c1b5430b350
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f g
description:
2.3
changeset: 2:bc2d09796734
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: g
description:
2.2
changeset: 1:b1aa5cde7ff4
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
2
changeset: 0:fcf06d5c4e1d
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
1
$ echo
$ hg clone . dupe
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo
$ for x in a b c d; do echo content > dupe/$x; done
$ hg -R dupe add
adding dupe/a
adding dupe/b
adding dupe/c
adding dupe/d
$ python unix2dos.py dupe/b dupe/c dupe/d
$ hg -R dupe ci -m a dupe/a
$ hg -R dupe ci -m b/c dupe/[bc]
$ hg -R dupe ci -m d dupe/d
$ hg -R dupe log -v
changeset: 8:67ac5962ab43
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: d
description:
d
changeset: 7:68c127d1834e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: b c
description:
b/c
changeset: 6:adbf8bf7f31d
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: a
description:
a
changeset: 5:f0b1c8d75fce
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: bin
description:
5
changeset: 4:77796dbcd4ad
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
4
changeset: 3:7c1b5430b350
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f g
description:
2.3
changeset: 2:bc2d09796734
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: g
description:
2.2
changeset: 1:b1aa5cde7ff4
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
2
changeset: 0:fcf06d5c4e1d
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
1
$ echo
$ hg pull dupe
pulling from dupe
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 4 changes to 4 files
Attempt to commit or push text file(s) using CRLF line endings
in 67ac5962ab43: d
in 68c127d1834e: b
in 68c127d1834e: c
To prevent this mistake in your local repository,
add to Mercurial.ini or .hg/hgrc:
[hooks]
pretxncommit.crlf = python:hgext.win32text.forbidcrlf
and also consider adding:
[extensions]
win32text =
[encode]
** = cleverencode:
[decode]
** = cleverdecode:
transaction abort!
rollback completed
abort: pretxnchangegroup.crlf hook failed
[255]
$ echo
$ hg log -v
changeset: 5:f0b1c8d75fce
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: bin
description:
5
changeset: 4:77796dbcd4ad
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
4
changeset: 3:7c1b5430b350
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f g
description:
2.3
changeset: 2:bc2d09796734
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: g
description:
2.2
changeset: 1:b1aa5cde7ff4
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
2
changeset: 0:fcf06d5c4e1d
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: f
description:
1
$ echo
$ rm .hg/hgrc
$ (echo some; echo text) > f3
$ python -c 'file("f4.bat", "wb").write("rem empty\x0D\x0A")'
$ hg add f3 f4.bat
$ hg ci -m 6
$ python print.py < bin
hello<NUL><CR><LF>
$ python print.py < f3
some<LF>text<LF>
$ python print.py < f4.bat
rem empty<CR><LF>
$ echo
$ echo '[extensions]' >> .hg/hgrc
$ echo 'win32text = ' >> .hg/hgrc
$ echo '[decode]' >> .hg/hgrc
$ echo '** = cleverdecode:' >> .hg/hgrc
$ echo '[encode]' >> .hg/hgrc
$ echo '** = cleverencode:' >> .hg/hgrc
$ cat .hg/hgrc
[extensions]
win32text =
[decode]
** = cleverdecode:
[encode]
** = cleverencode:
Trigger deprecation warning:
$ hg id
win32text is deprecated: http://mercurial.selenic.com/wiki/Win32TextExtension
b910084e3c98+ tip
Disable warning:
$ echo '[win32text]' >> .hg/hgrc
$ echo 'warn = no' >> .hg/hgrc
$ hg id
b910084e3c98+ tip
$ rm f3 f4.bat bin
$ hg co -C 2>&1 | python -c 'import sys, os; sys.stdout.write(sys.stdin.read().replace(os.getcwd(), "...."))'
WARNING: f4.bat already has CRLF line endings
and does not need EOL conversion by the win32text plugin.
Before your next commit, please reconsider your encode/decode settings in
Mercurial.ini or ..../.hg/hgrc.
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ python print.py < bin
hello<NUL><CR><LF>
$ python print.py < f3
some<CR><LF>text<CR><LF>
$ python print.py < f4.bat
rem empty<CR><LF>
$ echo
$ python -c 'file("f5.sh", "wb").write("# empty\x0D\x0A")'
$ hg add f5.sh
$ hg ci -m 7
$ python print.py < f5.sh
# empty<CR><LF>
$ hg cat f5.sh | python print.py
# empty<LF>
$ echo '% just linefeed' > linefeed
$ hg ci -qAm 8 linefeed
$ python print.py < linefeed
% just linefeed<LF>
$ hg cat linefeed | python print.py
% just linefeed<LF>
$ hg st -q
$ hg revert -a linefeed
no changes needed to linefeed
$ python print.py < linefeed
% just linefeed<LF>
$ hg st -q
$ echo modified >> linefeed
$ hg st -q
M linefeed
$ hg revert -a
reverting linefeed
$ hg st -q
$ python print.py < linefeed
% just linefeed<CR><LF>