sapling/eden/hg-server/tests/test-arbitraryfilectx.t
Durham Goode 98d9269874 server: copy hg to a new hg-server directory
Summary:
Create a fork of the Mercurial code that we can use to build server
rpms. The hg servers will continue to exist for a few more months while we move
the darkstorm and ediscovery use cases off them. In the mean time, we want to
start making breaking changes to the client, so let's create a stable copy of
the hg code to produce rpms for the hg servers.

The fork is based off c7770c78d, the latest hg release.

This copies the files as is, then adds some minor tweaks to get it to build:
- Disables some lint checks that appear to be bypassed by path
- sed replace eden/scm with eden/hg-server
- Removed a dependency on scm/telemetry from the edenfs-client tests since
  scm/telemetry pulls in the original eden/scm/lib/configparser which conflicts
  with the hg-server conflict parser.

allow-large-files

Reviewed By: quark-zju

Differential Revision: D27632557

fbshipit-source-id: b2f442f4ec000ea08e4d62de068750832198e1f4
2021-04-09 10:09:06 -07:00

101 lines
2.5 KiB
Perl

#chg-compatible
Setup:
$ newext eval <<EOF
> from __future__ import absolute_import
> import filecmp
> from edenscm.mercurial import commands, context, registrar
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command('eval', [], 'hg eval CMD')
> def eval_(ui, repo, *cmds, **opts):
> cmd = " ".join(cmds)
> res = str(eval(cmd, globals(), locals()))
> ui.warn("%s" % res)
> EOF
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('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.
#if symlink
$ hg eval "not filecmp.cmp('real_A', 'sym_A')"
True (no-eol)
#else
$ hg eval "not filecmp.cmp('real_A', 'sym_A')"
False (no-eol)
#endif