upstream/mercurial-mirror Files · contrib/python-hook-examples.py

revlog: add a small cache of unfiltered chunk...

revlog: add a small cache of unfiltered chunk This can provides a massive boost to the reading of multiple revision and the computation of a valid delta chain. This greatly help operation like `hg log --patch`, delta computation (helping pull/unbundle), linkrev adjustment (helping copy tracing). A first round of benchmark for `hg log --patch --limit 1000` shows improvement in the 10-20% range on "small" repository like pypy or mercurial and large improvements (about 33%) for more complex ones like netbeans and mozilla's. These speeds up are consistent with the improvement to `hg pull` (from a server sending poor deltas) I saw benchmarking this last year. Further benchmark will be run during the freeze. I added some configuration in the experimental space to be able to further test the effect of various tuning for now. This feature should fit well in the "usage/resource profile" configuration that we should land next cycle. When it does not provides a benefit the overhead of the cache seem to be around 2%, a small price for the big improvement. In addition I believe we could shave most of this overhead with a more efficent lru implementation.

Gregory Szorc - - Load All Authors

File last commit:

r49730:6000f5b2 default


                r52001:0250e450

default

Download file

             python-hook-examples.py
        
                    26 lines
            
             | 594 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / contrib / python-hook-examples.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      '''

      Examples of useful python hooks for Mercurial.

      '''

      from mercurial import (

          patch,

          util,

      )

      def diffstat(ui, repo, **kwargs):

          """Example usage:

          [hooks]

          commit.diffstat = python:/path/to/this/file.py:diffstat

          changegroup.diffstat = python:/path/to/this/file.py:diffstat

          """

          if kwargs.get('parent2'):

              return

          node = kwargs['node']

          first = repo[node].p1().node()

          if 'url' in kwargs:

              last = repo.changelog.tip()

          else:

              last = node

          diff = patch.diff(repo, first, last)

          ui.write(patch.diffstat(util.iterlines(diff)))

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				'''
				Examples of useful python hooks for Mercurial.
				'''
				from mercurial import (
				patch,
				util,
				)


				def diffstat(ui, repo, **kwargs):
				"""Example usage:

				[hooks]
				commit.diffstat = python:/path/to/this/file.py:diffstat
				changegroup.diffstat = python:/path/to/this/file.py:diffstat
				"""
				if kwargs.get('parent2'):
				return
				node = kwargs['node']
				first = repo[node].p1().node()
				if 'url' in kwargs:
				last = repo.changelog.tip()
				else:
				last = node
				diff = patch.diff(repo, first, last)
				ui.write(patch.diffstat(util.iterlines(diff)))