upstream/mercurial-mirror Files · tests/test-custom-filters.t

hgweb: profile HTTP requests...

hgweb: profile HTTP requests Currently, running `hg serve --profile` doesn't yield anything useful: when the process is terminated the profiling output displays results from the main thread, which typically spends most of its time in select.select(). Furthermore, it has no meaningful results from mercurial.* modules because the threads serving HTTP requests don't actually get profiled. This patch teaches the hgweb wsgi applications to profile individual requests. If profiling is enabled, the profiler kicks in after HTTP/WSGI environment processing but before Mercurial's main request processing. The profile results are printed to the configured profiling output. If running `hg serve` from a shell, they will be printed to stderr, just before the HTTP request line is logged. If profiling to a file, we only write a single profile to the file because the file is not opened in append mode. We could add support for appending to files in a future patch if someone wants it. Per request profiling doesn't work with the statprof profiler because internally that profiler collects samples from the thread that *initially* requested profiling be enabled. I have plans to address this by vendoring Facebook's customized statprof and then improving it.

Pierre-Yves David - - Load All Authors

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        $ hg init

        $ cat > .hg/hgrc <<EOF

        > [extensions]

        > prefixfilter = prefix.py

        > [encode]

        > *.txt = stripprefix: Copyright 2046, The Masters

        > [decode]

        > *.txt = insertprefix: Copyright 2046, The Masters

        > EOF

        $ cat > prefix.py <<EOF

        > from mercurial import error

        > def stripprefix(s, cmd, filename, **kwargs):

        >     header = '%s\n' % cmd

        >     if s[:len(header)] != header:

        >         raise error.Abort('missing header "%s" in %s' % (cmd, filename))

        >     return s[len(header):]

        > def insertprefix(s, cmd):

        >     return '%s\n%s' % (cmd, s)

        > def reposetup(ui, repo):

        >     repo.adddatafilter('stripprefix:', stripprefix)

        >     repo.adddatafilter('insertprefix:', insertprefix)

        > EOF

        $ cat > .hgignore <<EOF

        > .hgignore

        > prefix.py

        > prefix.pyc

        > EOF

        $ cat > stuff.txt <<EOF

        > Copyright 2046, The Masters

        > Some stuff to ponder very carefully.

        > EOF

        $ hg add stuff.txt

        $ hg ci -m stuff

      Repository data:

        $ hg cat stuff.txt

        Some stuff to ponder very carefully.

      Fresh checkout:

        $ rm stuff.txt

        $ hg up -C

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ cat stuff.txt

        Copyright 2046, The Masters

        Some stuff to ponder very carefully.

        $ echo "Very very carefully." >> stuff.txt

        $ hg stat

        M stuff.txt

        $ echo "Unauthorized material subject to destruction." > morestuff.txt

      Problem encoding:

        $ hg add morestuff.txt

        $ hg ci -m morestuff

        abort: missing header "Copyright 2046, The Masters" in morestuff.txt

        [255]

        $ hg stat

        M stuff.txt

        A morestuff.txt

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				$ hg init

				$ cat > .hg/hgrc <<EOF
				> [extensions]
				> prefixfilter = prefix.py
				> [encode]
				> *.txt = stripprefix: Copyright 2046, The Masters
				> [decode]
				> *.txt = insertprefix: Copyright 2046, The Masters
				> EOF

				$ cat > prefix.py <<EOF
				> from mercurial import error
				> def stripprefix(s, cmd, filename, **kwargs):
				> header = '%s\n' % cmd
				> if s[:len(header)] != header:
				> raise error.Abort('missing header "%s" in %s' % (cmd, filename))
				> return s[len(header):]
				> def insertprefix(s, cmd):
				> return '%s\n%s' % (cmd, s)
				> def reposetup(ui, repo):
				> repo.adddatafilter('stripprefix:', stripprefix)
				> repo.adddatafilter('insertprefix:', insertprefix)
				> EOF

				$ cat > .hgignore <<EOF
				> .hgignore
				> prefix.py
				> prefix.pyc
				> EOF

				$ cat > stuff.txt <<EOF
				> Copyright 2046, The Masters
				> Some stuff to ponder very carefully.
				> EOF
				$ hg add stuff.txt
				$ hg ci -m stuff

				Repository data:

				$ hg cat stuff.txt
				Some stuff to ponder very carefully.

				Fresh checkout:

				$ rm stuff.txt
				$ hg up -C
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ cat stuff.txt
				Copyright 2046, The Masters
				Some stuff to ponder very carefully.
				$ echo "Very very carefully." >> stuff.txt
				$ hg stat
				M stuff.txt

				$ echo "Unauthorized material subject to destruction." > morestuff.txt

				Problem encoding:

				$ hg add morestuff.txt
				$ hg ci -m morestuff
				abort: missing header "Copyright 2046, The Masters" in morestuff.txt
				[255]
				$ hg stat
				M stuff.txt
				A morestuff.txt