tests/test-arbitraryfilectx.t
author Raphaël Gomès <rgomes@octobus.net>
Thu, 28 Mar 2024 14:47:20 +0000
branchstable
changeset 51540 803e61387e86
parent 48876 42d2b31cee0b
permissions -rw-r--r--
relnotes: add 6.7.2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Setup:
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  $ cat > eval.py <<EOF
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  > import filecmp
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  > from mercurial import commands, context, pycompat, registrar
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  > cmdtable = {}
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  > command = registrar.command(cmdtable)
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  > @command(b'eval', [], b'hg eval CMD')
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  > def eval_(ui, repo, *cmds, **opts):
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  >     cmd = b" ".join(cmds)
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  >     res = pycompat.bytestr(eval(cmd, globals(), locals()))
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  >     ui.warn(b"%s" % res)
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  > EOF
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  $ echo "[extensions]" >> $HGRCPATH
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  $ echo "eval=`pwd`/eval.py" >> $HGRCPATH
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Arbitraryfilectx.cmp does not follow symlinks:
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  $ mkdir case1
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  $ cd case1
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  $ hg init
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#if symlink
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  $ printf "A" > real_A
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  $ printf "foo" > A
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  $ printf "foo" > B
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  $ ln -s A sym_A
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  $ hg add .
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  adding A
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  adding B
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  adding real_A
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  adding sym_A
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  $ hg commit -m "base"
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#else
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  $ hg import -q --bypass - <<EOF
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  > # HG changeset patch
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  > # User test
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  > # Date 0 0
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  > base
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  > 
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  > diff --git a/A b/A
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  > new file mode 100644
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  > --- /dev/null
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  > +++ b/A
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  > @@ -0,0 +1,1 @@
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  > +foo
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  > \ No newline at end of file
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  > diff --git a/B b/B
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  > new file mode 100644
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  > --- /dev/null
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  > +++ b/B
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  > @@ -0,0 +1,1 @@
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  > +foo
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  > \ No newline at end of file
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  > diff --git a/real_A b/real_A
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  > new file mode 100644
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  > --- /dev/null
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  > +++ b/real_A
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  > @@ -0,0 +1,1 @@
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  > +A
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  > \ No newline at end of file
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  > diff --git a/sym_A b/sym_A
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  > new file mode 120000
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  > --- /dev/null
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  > +++ b/sym_A
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  > @@ -0,0 +1,1 @@
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  > +A
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  > \ No newline at end of file
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  > EOF
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  $ hg up -q
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#endif
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These files are different and should return True (different):
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(Note that filecmp.cmp's return semantics are inverted from ours, so we invert
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for simplicity):
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  $ hg eval "context.arbitraryfilectx(b'A', repo).cmp(repo[None][b'real_A'])"
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  True (no-eol)
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  $ hg eval "not filecmp.cmp(b'A', b'real_A')"
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  True (no-eol)
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These files are identical and should return False (same):
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  $ hg eval "context.arbitraryfilectx(b'A', repo).cmp(repo[None][b'A'])"
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  False (no-eol)
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  $ hg eval "context.arbitraryfilectx(b'A', repo).cmp(repo[None][b'B'])"
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  False (no-eol)
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  $ hg eval "not filecmp.cmp(b'A', b'B')"
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  False (no-eol)
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This comparison should also return False, since A and sym_A are substantially
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the same in the eyes of ``filectx.cmp``, which looks at data only.
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  $ hg eval "context.arbitraryfilectx(b'real_A', repo).cmp(repo[None][b'sym_A'])"
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  False (no-eol)
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A naive use of filecmp on those two would wrongly return True, since it follows
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the symlink to "A", which has different contents.
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#if symlink
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  $ hg eval "not filecmp.cmp(b'real_A', b'sym_A')"
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  True (no-eol)
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#else
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  $ hg eval "not filecmp.cmp(b'real_A', b'sym_A')"
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  False (no-eol)
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#endif