hg.bat: return exit code explicitly for indirect invocation
When "hg.bat" is invoked via interactive shell "cmd.exe" on Windows,
it can store own exit code into ERRORLEVEL correctly, regardless of
explicit "exit" statement in it: "cmd.exe" seems to hold ERRORLEVEL
updated by the last command in the batch file (= "python hg", in
"hg.bat" case).
On the other hand, "hg.bat" is invoked indirectly via
"subprocess.Popen" (e.g. shell alias, hooks, hgclient and so on), the
parent process always receives exit code 0 from spawned "hg.bat":
batch files on Windows seem not to be really spawned like as shell
scripts on UNIX, but to be executed in the "cmd.exe" process.
This patch returns exit code explicitly for indirect invocation.
"/b" should be specified for "exit" to prevent "cmd.exe" from being
terminated when "hg.bat" is invoked interactively from it.
hide outer repo
$ hg init
Invalid syntax: no value
$ cat > .hg/hgrc << EOF
> novaluekey
> EOF
$ hg showconfig
hg: parse error at $TESTTMP/.hg/hgrc:1: novaluekey (glob)
[255]
Invalid syntax: no key
$ cat > .hg/hgrc << EOF
> =nokeyvalue
> EOF
$ hg showconfig
hg: parse error at $TESTTMP/.hg/hgrc:1: =nokeyvalue (glob)
[255]
Test hint about invalid syntax from leading white space
$ cat > .hg/hgrc << EOF
> key=value
> EOF
$ hg showconfig
hg: parse error at $TESTTMP/.hg/hgrc:1: key=value (glob)
unexpected leading whitespace
[255]
$ cat > .hg/hgrc << EOF
> [section]
> key=value
> EOF
$ hg showconfig
hg: parse error at $TESTTMP/.hg/hgrc:1: [section] (glob)
unexpected leading whitespace
[255]
Reset hgrc
$ echo > .hg/hgrc
Test case sensitive configuration
$ cat <<EOF >> $HGRCPATH
> [Section]
> KeY = Case Sensitive
> key = lower case
> EOF
$ hg showconfig Section
Section.KeY=Case Sensitive
Section.key=lower case
Test "%unset"
$ cat >> $HGRCPATH <<EOF
> [unsettest]
> local-hgrcpath = should be unset (HGRCPATH)
> %unset local-hgrcpath
>
> global = should be unset (HGRCPATH)
>
> both = should be unset (HGRCPATH)
>
> set-after-unset = should be unset (HGRCPATH)
> EOF
$ cat >> .hg/hgrc <<EOF
> [unsettest]
> local-hgrc = should be unset (.hg/hgrc)
> %unset local-hgrc
>
> %unset global
>
> both = should be unset (.hg/hgrc)
> %unset both
>
> set-after-unset = should be unset (.hg/hgrc)
> %unset set-after-unset
> set-after-unset = should be set (.hg/hgrc)
> EOF
$ hg showconfig unsettest
unsettest.set-after-unset=should be set (.hg/hgrc)
Test exit code when no config matches
$ hg config Section.idontexist
[1]