Mercurial > hg
view tests/test-arbitraryfilectx.t @ 34931:3f8273172636 stable
help: clarify the pre-txnclose-phase documentation
Gregory Szorc requested some clarification.
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Fri, 27 Oct 2017 21:43:22 +0200 |
parents | 14c87708f432 |
children | 9645c2a2bc2a |
line wrap: on
line source
Setup: $ cat > eval.py <<EOF > from __future__ import absolute_import > import filecmp > from mercurial import commands, context, registrar > cmdtable = {} > command = registrar.command(cmdtable) > @command(b'eval', [], 'hg eval CMD') > def eval_(ui, repo, *cmds, **opts): > cmd = " ".join(cmds) > res = str(eval(cmd, globals(), locals())) > ui.warn("%s" % res) > EOF $ echo "[extensions]" >> $HGRCPATH $ echo "eval=`pwd`/eval.py" >> $HGRCPATH Arbitraryfilectx.cmp does not follow symlinks: $ mkdir case1 $ cd case1 $ hg init $ 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" 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('A', repo).cmp(repo[None]['real_A'])" True (no-eol) $ hg eval "not filecmp.cmp('A', 'real_A')" True (no-eol) These files are identical and should return False (same): $ hg eval "context.arbitraryfilectx('A', repo).cmp(repo[None]['A'])" False (no-eol) $ hg eval "context.arbitraryfilectx('A', repo).cmp(repo[None]['B'])" False (no-eol) $ hg eval "not filecmp.cmp('A', '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('real_A', repo).cmp(repo[None]['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. $ hg eval "not filecmp.cmp('real_A', 'sym_A')" True (no-eol)