view tests/test-automv.t @ 29787:80df04266a16

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.

Tests for the automv extension; detect moved files at commit time.

  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > automv=
  > rebase=
  > EOF

Setup repo

  $ hg init repo
  $ cd repo

Test automv command for commit

  $ printf 'foo\nbar\nbaz\n' > a.txt
  $ hg add a.txt
  $ hg commit -m 'init repo with a'

mv/rm/add
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit -m 'msg'
  detected move of 1 files
  $ hg status --change . -C
  A b.txt
    a.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

mv/rm/add/modif
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ printf '\n' >> b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit -m 'msg'
  detected move of 1 files
  created new head
  $ hg status --change . -C
  A b.txt
    a.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

mv/rm/add/modif
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ printf '\nfoo\n' >> b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit -m 'msg'
  created new head
  $ hg status --change . -C
  A b.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

mv/rm/add/modif/changethreshold
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ printf '\nfoo\n' >> b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --config automv.similarity='60' -m 'msg'
  detected move of 1 files
  created new head
  $ hg status --change . -C
  A b.txt
    a.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

mv
  $ mv a.txt b.txt
  $ hg status -C
  ! a.txt
  ? b.txt
  $ hg commit -m 'msg'
  nothing changed (1 missing files, see 'hg status')
  [1]
  $ hg status -C
  ! a.txt
  ? b.txt
  $ hg revert -aqC
  $ rm b.txt

mv/rm/add/notincommitfiles
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ echo 'bar' > c.txt
  $ hg add c.txt
  $ hg status -C
  A b.txt
  A c.txt
  R a.txt
  $ hg commit c.txt -m 'msg'
  created new head
  $ hg status --change . -C
  A c.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg up -r 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg rm a.txt
  $ echo 'bar' > c.txt
  $ hg add c.txt
  $ hg commit -m 'msg'
  detected move of 1 files
  created new head
  $ hg status --change . -C
  A b.txt
    a.txt
  A c.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

mv/rm/add/--no-automv
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --no-automv -m 'msg'
  created new head
  $ hg status --change . -C
  A b.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

Test automv command for commit --amend

mv/rm/add
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --amend -m 'amended'
  detected move of 1 files
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A b.txt
    a.txt
  A c.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

mv/rm/add/modif
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ printf '\n' >> b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --amend -m 'amended'
  detected move of 1 files
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A b.txt
    a.txt
  A c.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

mv/rm/add/modif
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ printf '\nfoo\n' >> b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --amend -m 'amended'
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A b.txt
  A c.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

mv/rm/add/modif/changethreshold
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ printf '\nfoo\n' >> b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --amend --config automv.similarity='60' -m 'amended'
  detected move of 1 files
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A b.txt
    a.txt
  A c.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

mv
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg status -C
  ! a.txt
  ? b.txt
  $ hg commit --amend -m 'amended'
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status -C
  ! a.txt
  ? b.txt
  $ hg up -Cr 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

mv/rm/add/notincommitfiles
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ echo 'bar' > d.txt
  $ hg add d.txt
  $ hg status -C
  A b.txt
  A d.txt
  R a.txt
  $ hg commit --amend -m 'amended' d.txt
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A c.txt
  A d.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --amend -m 'amended'
  detected move of 1 files
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A b.txt
    a.txt
  A c.txt
  A d.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 3 files removed, 0 files unresolved

mv/rm/add/--no-automv
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg add b.txt
  $ hg status -C
  A b.txt
  R a.txt
  $ hg commit --amend -m 'amended' --no-automv
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A b.txt
  A c.txt
  R a.txt
  $ hg up -r 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

mv/rm/commit/add/amend
  $ echo 'c' > c.txt
  $ hg add c.txt
  $ hg commit -m 'revision to amend to'
  created new head
  $ mv a.txt b.txt
  $ hg rm a.txt
  $ hg status -C
  R a.txt
  ? b.txt
  $ hg commit -m "removed a"
  $ hg add b.txt
  $ hg commit --amend -m 'amended'
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-amend-backup.hg (glob)
  $ hg status --change . -C
  A b.txt
  R a.txt

error conditions

  $ cat >> $HGRCPATH << EOF
  > [automv]
  > similarity=110
  > EOF
  $ hg commit -m 'revision to amend to'
  abort: automv.similarity must be between 0 and 100
  [255]