Mercurial > hg
view tests/test-symlink-placeholder.t @ 41289:593f6359681d
update: fix edge-case with update.atomic-file and read-only files
We used to create the tempfile with the original file mode. That means
creating a read-only tempfile when the original file is read-only, which crash
if we need to write on the tempfile.
The file in the working directory ends up being writable with and without the
atomic update config, so the behavior is the same.
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Thu, 10 Jan 2019 14:57:01 +0100 |
parents | 0a10f142299d |
children |
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#require symlink Create extension that can disable symlink support: $ cat > nolink.py <<EOF > from mercurial import extensions, util > def setflags(orig, f, l, x): > pass > def checklink(orig, path): > return False > def extsetup(ui): > extensions.wrapfunction(util, 'setflags', setflags) > extensions.wrapfunction(util, 'checklink', checklink) > EOF $ hg init unix-repo $ cd unix-repo $ echo foo > a $ ln -s a b $ hg ci -Am0 adding a adding b $ cd .. Simulate a checkout shared on NFS/Samba: $ hg clone -q unix-repo shared $ cd shared $ rm b $ echo foo > b $ hg --config extensions.n=$TESTTMP/nolink.py status --debug ignoring suspect symlink placeholder "b" Make a clone using placeholders: $ hg --config extensions.n=$TESTTMP/nolink.py clone . ../win-repo updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd ../win-repo $ cat b a (no-eol) $ hg --config extensions.n=$TESTTMP/nolink.py st --debug Empty placeholder: $ rm b $ touch b $ hg --config extensions.n=$TESTTMP/nolink.py st --debug ignoring suspect symlink placeholder "b" Write binary data to the placeholder: >>> open('b', 'w').write('this is a binary\0') and None $ hg --config extensions.n=$TESTTMP/nolink.py st --debug ignoring suspect symlink placeholder "b" Write a long string to the placeholder: >>> open('b', 'w').write('this' * 1000) and None $ hg --config extensions.n=$TESTTMP/nolink.py st --debug ignoring suspect symlink placeholder "b" Commit shouldn't succeed: $ hg --config extensions.n=$TESTTMP/nolink.py ci -m1 nothing changed [1] Write a valid string to the placeholder: >>> open('b', 'w').write('this') and None $ hg --config extensions.n=$TESTTMP/nolink.py st --debug M b $ hg --config extensions.n=$TESTTMP/nolink.py ci -m1 $ hg manifest tip --verbose 644 a 644 @ b $ cd ..