Mercurial > hg
view tests/test-arbitraryfilectx.t @ 47255:ff9fd7107d11
revlog: implement a "default compression" mode
The revlog docker is now storing a default compression engine. When a chunk use
that compression, a dedicated mode is used in the revlog entry and we can
directly route it to the right decompressor.
We should probably make PLAIN and DEFAULT mode the only available mode for
revlogv2, but this is something for later.
Differential Revision: https://phab.mercurial-scm.org/D10652
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 03 May 2021 21:13:24 +0200 |
parents | 5361f9ed8a30 |
children | 42d2b31cee0b |
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Setup: $ cat > eval.py <<EOF > from __future__ import absolute_import > import filecmp > from mercurial import commands, context, pycompat, registrar > cmdtable = {} > command = registrar.command(cmdtable) > @command(b'eval', [], b'hg eval CMD') > def eval_(ui, repo, *cmds, **opts): > cmd = b" ".join(cmds) > res = pycompat.bytestr(eval(cmd, globals(), locals())) > ui.warn(b"%s" % res) > EOF $ echo "[extensions]" >> $HGRCPATH $ echo "eval=`pwd`/eval.py" >> $HGRCPATH Arbitraryfilectx.cmp does not follow symlinks: $ mkdir case1 $ cd case1 $ hg init #if symlink $ printf "A" > real_A $ printf "foo" > A $ printf "foo" > B $ ln -s A sym_A $ hg add . adding A adding B adding real_A adding sym_A $ hg commit -m "base" #else $ hg import -q --bypass - <<EOF > # HG changeset patch > # User test > # Date 0 0 > base > > diff --git a/A b/A > new file mode 100644 > --- /dev/null > +++ b/A > @@ -0,0 +1,1 @@ > +foo > \ No newline at end of file > diff --git a/B b/B > new file mode 100644 > --- /dev/null > +++ b/B > @@ -0,0 +1,1 @@ > +foo > \ No newline at end of file > diff --git a/real_A b/real_A > new file mode 100644 > --- /dev/null > +++ b/real_A > @@ -0,0 +1,1 @@ > +A > \ No newline at end of file > diff --git a/sym_A b/sym_A > new file mode 120000 > --- /dev/null > +++ b/sym_A > @@ -0,0 +1,1 @@ > +A > \ No newline at end of file > EOF $ hg up -q #endif These files are different and should return True (different): (Note that filecmp.cmp's return semantics are inverted from ours, so we invert for simplicity): $ hg eval "context.arbitraryfilectx(b'A', repo).cmp(repo[None][b'real_A'])" True (no-eol) $ hg eval "not filecmp.cmp(b'A', b'real_A')" True (no-eol) These files are identical and should return False (same): $ hg eval "context.arbitraryfilectx(b'A', repo).cmp(repo[None][b'A'])" False (no-eol) $ hg eval "context.arbitraryfilectx(b'A', repo).cmp(repo[None][b'B'])" False (no-eol) $ hg eval "not filecmp.cmp(b'A', b'B')" False (no-eol) This comparison should also return False, since A and sym_A are substantially the same in the eyes of ``filectx.cmp``, which looks at data only. $ hg eval "context.arbitraryfilectx(b'real_A', repo).cmp(repo[None][b'sym_A'])" False (no-eol) A naive use of filecmp on those two would wrongly return True, since it follows the symlink to "A", which has different contents. #if symlink $ hg eval "not filecmp.cmp(b'real_A', b'sym_A')" True (no-eol) #else $ hg eval "not filecmp.cmp(b'real_A', b'sym_A')" False (no-eol) #endif