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.
0391b3f94e