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1 g2boojum 1.1 GLEP: 36
2     Title: Subversion/CVS for Gentoo Hosted Projects
3 ka0ttic 1.3 Version: $Revision: 1.2 $
4 g2boojum 1.1 Author: Aaron Walker <ka0ttic@gentoo.org>
5 ka0ttic 1.3 Last-Modified: $Date: 2005/03/23 15:27:24 $
6 g2boojum 1.1 Status: Draft
7     Type: Standards Track
8     Content-Type: text/x-rst
9     Created: 11-Nov-2004
10 ka0ttic 1.4 Post-Date: 13-Mar-2005, 21-Mar-2005
11 g2boojum 1.1
12     Abstract
13     ========
14    
15     Allow maintainers of Gentoo hosted projects to choose between Subversion/CVS.
16    
17     Motivation
18     ==========
19    
20     By offering a choice of version control systems, developers who want or need
21     certain features, can choose which one suits them or their project the best.
22    
23     In addition, there are quite a few projects that should be Gentoo hosted, but
24     are hosted elsewhere due to the fact that Subversion is not currently offered.
25     Examples include the app-vim/gentoo-syntax package ([1]_), and
26 g2boojum 1.2 app-shells/gentoo-bashcomp ([2]_).
27 g2boojum 1.1
28     Subversion has many advantages over CVS, including changesets, directory
29     versioning, atomic commits, versioned metadata, and more efficient branching
30     and tagging ([3]_). Despite these advantages, many developers feel that
31     Subversion is not yet ready for the main tree due to scaling issues.
32    
33     Specification
34     =============
35    
36     The following steps describe, in detail, the process of setting up the
37     Subversion svnserve daemon (over SSH) and creating new repositories.
38 ka0ttic 1.3
39     One repository should be created per project. Reasons for this include easier
40     control over who has access, performance (checking out one big repository
41     takes many times longer), ease-of-use (branching and merging are more difficult
42     with one big repository), and meaningful revision numbers (since Subversion
43     uses repository-global revision numbers, revision numbers for project A will
44     increase on every commit even if no changes are made to project A).
45    
46     For preexisting CVS repositories, instructions on converting ([4]_) are
47     already available in addition to the cvs2svn documentation itself ([5]_).
48 g2boojum 1.1
49     1. Install dev-util/subversion::
50    
51     $ emerge subversion
52    
53     2. Write wrapper script for svnserve::
54    
55    
56 ka0ttic 1.4 $ $EDITOR /usr/local/bin/svnserve-ssh && chmod +x \
57     > /usr/local/bin/svnserve-ssh
58    
59     #!/bin/sh
60     umask 002
61     exec /usr/bin/svnserve "$@"
62 g2boojum 1.1
63     3. Modify the svnserve rc script::
64    
65 ka0ttic 1.4 $ cp /etc/init.d/svnserve /etc/init.d/svnserve-ssh
66     $ sed -i 's:/usr/bin/svnserve:/usr/local/bin/svnserve-ssh:' \
67     > /etc/init.d/svnserve-ssh
68 g2boojum 1.1
69     4. Edit svnserve rc config::
70    
71     $ ln -s /etc/init.d/svnserve /etc/init.d/svnserve-ssh
72     $ $EDITOR /etc/init.d/svnserve
73    
74     SVNSERVE_OPTS="--root=/var/svnroot"
75     SVNSERVE_USER="svn"
76     SVNSERVE_GROUP="svn"
77    
78     5. Add svn group and user::
79    
80     $ groupadd svn
81     $ useradd svn -d /var/svnroot -s /bin/false -g svn
82    
83     6. Create the directory that will hold the repositories::
84    
85     $ mkdir -p /var/svnroot/conf
86    
87     7. To create new repositories, simply run::
88    
89 g2boojum 1.2 $ svnadmin create --fs-type fsfs /var/svnroot/<repos>
90 g2boojum 1.1
91     8. Make sure newly created/converted repositories have correct permissions. Of course, Infra might want to do this differently::
92    
93     $ chown -Rf svn:users /var/svnroot/<repos>
94     $ chmod -Rf 775 /var/svnroot/<repos>
95    
96     9. Start it up::
97    
98     $ /etc/init.d/svnserve-ssh start
99     $ rc-update add svnserve-ssh default
100    
101     Backwards Compatibility
102     =======================
103    
104     Offering a choice between Subversion and CVS should in no way cause any
105     backwards compatibility issues. Those developers who prefer to use CVS can
106     continue to do so without any ill effects.
107    
108     References
109     ==========
110    
111     .. [1] app-vim/gentoo-syntax
112     http://developer.berlios.de/projects/gentoo-syntax/
113 g2boojum 1.2 .. [2] app-shells/gentoo-bashcomp
114     http://developer.berlios.de/projects/gentoo-bashcomp/
115 g2boojum 1.1 .. [3] Version Control with Subversion
116     http://svnbook.red-bean.com/en/1.0/ch01s03.html
117     .. [4] Migration of Gentoo Repositories from CVS to Subversion
118     http://dev.gentoo.org/~trapni/CVS2SVN.MIGRATION
119     .. [5] cvs2svn Documentation
120     http://cvs2svn.tigris.org/cvs2svn.html
121    
122     Copyright
123     =========
124    
125     This document has been placed in the public domain.

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