* lisp/vc/vc-dir.el (vc-dir-recompute-file-state): Change
directory to DEF-DIR before calling into the backend.
* test/lisp/vc/vc-tests/vc-test-misc.el
(vc-test-vc-dir-on-symlink): Test that the file has the right
state.
* lisp/vc/vc-dir.el (vc-dir-resynch-file): Pass only truenames
to vc-dir-recompute-file-state.
* test/lisp/vc/vc-tests/vc-test-misc.el (vc-git): Require.
(vc-test-vc-dir-on-symlink): New test.
When using vc-exec-after to parse program output, check that the
program didn't die to a signal or exit with an error exit code
before attempting the parse. Continue to use plain
vc-run-delayed where we aren't parsing output, because in these
cases it doesn't matter to CODE if the output is incomplete.
* lisp/vc/vc-dispatcher.el (vc-exec-after): <process-status>:
Treat PROC dying to a signal the same as PROC exiting non-zero.
(vc-exec-after): <accept-process-output>: Restore making a
nonblocking call, for the case of vc-exec-after called from a
process sentinel. diff-hl *does* require this.
(vc-exec-after): <OKSTATUS>: New parameter, replacing SUCCESS,
which never worked as documented.
* test/lisp/vc/vc-tests/vc-test-misc.el (vc-test-exec-after-3):
Test it.
(vc-run-delayed-success): New macro.
* lisp/vc/vc-git.el (vc-git-dir-status-goto-stage):
* lisp/vc/vc-hg.el (vc-hg-dir-status-files):
* lisp/vc/vc.el (vc-pull-and-push): Use it.
* lisp/obsolete/vc-arch.el (vc-exec-after):
* lisp/obsolete/vc-mtn.el (vc-exec-after):
* lisp/vc/vc-bzr.el (vc-exec-after):
* lisp/vc/vc-cvs.el (vc-exec-after):
* lisp/vc/vc-git.el (vc-exec-after):
* lisp/vc/vc-hg.el (vc-exec-after):
* lisp/vc/vc-svn.el (vc-exec-after): Update declarations.
* lisp/vc/vc-dispatcher.el (vc-do-command): Support discarding
standard error.
* lisp/vc/vc-hg.el (vc-hg-dir-status-files): Discard standard
error of 'hg status' to avoid parsing mistakes.
(vc-hg-command): Update docstring given new meaning of first
argument to vc-do-command.
* test/lisp/vc/vc-tests/vc-test-misc.el (vc-test-do-command-1)
(vc-test-do-command-2, vc-test-do-command-3)
(vc-test-do-command-4, vc-test-do-command-5)
(vc-test-do-command-6, vc-test-do-command-7): New tests.
* test/lisp/vc/vc-tests/vc-test-misc.el (vc-test-exec-after-1)
(vc-test-exec-after-2, vc-test-exec-after-3)
(vc-test-exec-after-4, vc-test-exec-after-5): Fix shell commands
for MS-Windows: use "&" instead of ";" and don't use fractional
times for 'sleep', as some Windows ports of 'sleep' don't support
that.
