config: explicitly track the use of the standard default value
We introduce a small object used to detect that no specific default value has
been passed to 'ui.config'. We need this explicit special value since "None" is
a valid and common default value.
The end goal here is to make progress on a centralised and explicit declaration
of the available config option. A first good usecase for this are "default"
value. Before starting looking further down this alley we needs to rework the
handling of default value in the 'ui' object to have all configxyz methods going
through the same logic. This is the first changeset on this trek.
#require no-windows
ATTENTION: logtoprocess runs commands asynchronously. Be sure to append "| cat"
to hg commands, to wait for the output, if you want to test its output.
Otherwise the test will be flaky.
Test if logtoprocess correctly captures command-related log calls.
$ hg init
$ cat > $TESTTMP/foocommand.py << EOF
> from mercurial import registrar
> from time import sleep
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command('foo', [])
> def foo(ui, repo):
> ui.log('foo', 'a message: %(bar)s\n', bar='spam')
> EOF
$ cp $HGRCPATH $HGRCPATH.bak
$ cat >> $HGRCPATH << EOF
> [extensions]
> logtoprocess=
> foocommand=$TESTTMP/foocommand.py
> [logtoprocess]
> command=echo 'logtoprocess command output:';
> echo "\$EVENT";
> echo "\$MSG1";
> echo "\$MSG2"
> commandfinish=echo 'logtoprocess commandfinish output:';
> echo "\$EVENT";
> echo "\$MSG1";
> echo "\$MSG2";
> echo "\$MSG3"
> foo=echo 'logtoprocess foo output:';
> echo "\$EVENT";
> echo "\$MSG1";
> echo "\$OPT_BAR"
> EOF
Running a command triggers both a ui.log('command') and a
ui.log('commandfinish') call. The foo command also uses ui.log.
Use sort to avoid ordering issues between the various processes we spawn:
$ hg foo | cat | sort
0
a message: spam
command
commandfinish
foo
foo
foo
foo
foo exited 0 after * seconds (glob)
logtoprocess command output:
logtoprocess commandfinish output:
logtoprocess foo output:
spam
Confirm that logging blocked time catches stdio properly:
$ cp $HGRCPATH.bak $HGRCPATH
$ cat >> $HGRCPATH << EOF
> [extensions]
> logtoprocess=
> pager=
> [logtoprocess]
> uiblocked=echo "\$EVENT stdio \$OPT_STDIO_BLOCKED ms command \$OPT_COMMAND_DURATION ms"
> [ui]
> logblockedtimes=True
> EOF
$ hg log | cat
uiblocked stdio [0-9]+.[0-9]* ms command [0-9]+.[0-9]* ms (re)