Diff for "CompressExtension"

Differences between revisions 6 and 8 (spanning 2 versions)

ConvertParentdelta

This extension is not distributed with Mercurial.

Author:Pradeepkumar Gayam

Download site:http://selenic.com/hg/file/tip/contrib/compress.py

Overview

This extension is used to convert normal repositories into parentdelta repos. It reads revision of each file and rewrites the in new repository. It can be used to observe the affect of changes made in revision() and addrevision() functions in revlog. This was written aiming to convert a repository to parent delta repo. Some optimization can be done to cost less CPU.

Configuration

Configure your .hgrc to enable the extension by adding following lines:

[extensions]
compress = /path/to/file

[format]
parentdelta = True

Usage

hg compress -R from to

Stats

inserting full revision at a distance of 2 * len(fulltext) mercurial repository compressed to: 11MB to 4.4MB

At a distance of 4 * len(fulltext) 11MB to 4.2MB

At a distance of 6 * len(fulltext): 11MB to 2.0MB

danchr in IRC quotes that 2GB repo compressed to ~380MB

CategoryExtension CategoryExtensionsByOthers CategoryExtension

-  ⇤ ← Revision 6 as of 2010-08-20 06:45:30 → 
  Size: 764
  Editor: Pradeepkumar
  Comment:
+   ← Revision 8 as of 2010-08-21 01:58:22 → ⇥
  Size: 1165
  Editor: Pradeepkumar
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-This extension is used to convert normal repositories into parentdelta repos.
+This extension is used to convert normal repositories into parentdelta repos. It reads revision of each file and rewrites the in new repository. It can be used to observe the affect of changes made in `revision()` and `addrevision()` functions in revlog. This was written aiming to convert a repository to parent delta repo. Some optimization can be done to cost less CPU.
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-Line 28:
+Line 27:
+At a distance of 4 * len(fulltext) 11MB to 4.2MB
-Line 30:
+Line 31:
+`danchr` in IRC quotes that 2GB repo compressed to ~380MB