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Revision 1.15 - (show annotations)
Sat Jul 20 00:48:16 2002 UTC (16 years, 4 months ago) by bertho
Branch: MAIN
Changes since 1.14: +15 -3 lines
Hopefully fixed configure problems
Prepared new release 1.3.0
1 CvsGraph 1.3.0, 20-Jul-2002
2 ===========================
3 CvsGraph creates a graphic representation of the revisions and branches in a
4 cvs/rcs repository. CvsGraph is inspired on the 'graph'-option from WinCVS. I
5 could not find something right away on the web and decided that it was time to
6 write a stand-alone version. I might have been doing some double work, but hey,
7 I like a hack.
11 New in this version
12 -------------------
13 - Implement a workaround for browsers that do not understand unordered
14 y-coordinates in the imagemap when generated upside down.
16 - Fix the slowness of CvsGraph when parsing very large (typically -kb files)
17 by bypassing the parsing of the actual deltatext. On my machine (K6-2/500/256M
18 it makes a difference of 7.5s vs 0.04s on a 93MByte file, without counting
19 disk-overhead; with disk-overhead it takes 12.5s).
20 Downside is that the logentry cannot be expanded if the file is not parsed in
21 full (see below). Use option parse_logs to enable log-expansions.
23 - Implemented logentry expansions using %l and %L. You must enable full parsing
24 (option parse_logs) for this to work.
26 - Fixed a possible buffer overflow in the string expansion. However, this is a
27 very low-risk overflow, since it will trash the heap and _not_ the stack.
28 Furthermore, you need to pass strings from CGI directly to cvsgraph without
29 any checks to come even close to trash the heap.
31 - Fixed a segfault on IRIX in the bsearch calls. These lookups could be called
32 with a NULL pointer and IRIX's libc doesn't like that.
34 - Implement left to right and right to left images. The entire tree can now be
35 drawn horizontally when option left_right is set. Using both left_right and
36 upside_down results in right to left images.
40 Compiling
41 ---------
43 create directory:
44 $ cd /where/ever/you/want
45 $ tar xzf cvsgraph-1.3.0.tar.gz
46 $ cd cvsgraph-1.3.0
47 $ ./configure
48 $ make
50 This should do the trick and you have an executable file 'cvsgraph' in the
51 current directory.
53 NOTE: The GD library is required for CvsGraph to function. Get it from
54 http://www.boutell.com, compile it and use either --with-gd-lib=DIR
55 and --with-gd-inc=DIR to specify its location. You might also have
56 to use --with-z-inc, --with-z-lib and --with-png-inc, --with-png-lib
57 for gd versions 1.6 and higher.
58 If you build with static libgd (i.e. libgd.a) and already have
59 libpng.so and/or libjpeg6b.so (i.e. dynamic), then you might want to
60 try to trick configure into adding these libs to the tests by adding
61 commandline options '--with-png-lib=.' and '--with-jpeg-lib=.'.
62 If you have linked libgd with freetype, then you might also need
63 either --with-freetype-lib or --with-freetype2-lib.
67 Installing
68 ----------
69 Put the executable file 'cvsgraph' somewhere where you think it should go.
70 Normally this would be "/usr/local/bin" or "/usr/bin". The configuration file
71 ought to be put in "/usr/local/etc" or "/etc". The exact position can be
72 overriden on the commandline anyway. Edit the configuration file to your liking
73 and you should be all set.
77 Running CvsGraph
78 ----------------
79 Do *NOT* execute the program directly from a webserver. Direct execution would
80 be very insecure. Make a wrapper cgi-script in php, perl, or whatever you
81 normally use. The easiest way is to get the ViewCVS package from their website
82 at http://viewcvs.sourceforge.net and follow the instructions.
84 Alternately, you can hack the 'cvsweb' package to call CvsGraph. There are
85 several scripts and patches available from the CvsGraph homepage (see below for
86 address). However, the scripts are no longer maintained because ViewCVS has
87 native support now.
89 To generate an image do something like:
90 $ cvsgraph -r /home/to/repository -m module -o mygraph.png myfile.c,v
92 This generates a revison/branch image of the rcs file 'myfile.c,v' and puts it
93 into 'mygraph.png'. The '-r' option is the path to the repository *located and
94 accessible* on your filesystem. The '-m' is the module in the repository. Note
95 that the extension of the file ends with ",v".
97 Just to make it clear: You cannot make images from a cvs-repository over the
98 internet as if you were using cvs. The repository files
99 must be on a locally mounted filesystem. However, you
100 can use cvsup or rsync to get a repository to your
101 local filesystem and make then image from there.
103 Type 'cvsgraph -h' to get a full list of options. If the output is not given
104 (no '-o'), then the output is written to standard output.
106 Please read the manual pages cvsgraph(1) and cvsgraph.conf(5) for more
107 information on execution and configuration.
111 Todo
112 ----
113 - do a better job in making a layout (auto moving branches and rubber banding
114 revision-connectors to make place). A start is made, but this is not very
115 functional yet.
117 - draw only a part or parts of the tree.
121 License
122 -------
123 CvsGraph is distributed under GNU GPL v2. See 'LICENSE' for more information.
127 Contact
128 -------
129 HomePage: http://www.akhphd.au.dk/~bertho/cvsgraph
130 E-mail: cvsgraph@akhphd.au.dk
132 Greetings Bertho

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