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304 строки
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Plaintext
304 строки
12 KiB
Plaintext
# -*- mode: indented-text -*-
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#
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# Author: Artem Belevich <abelevic@ctron.com>
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#
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# (Changes have been made to Artem's original doc, as things evolve.)
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#
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#
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**********************************************************************
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As it's said in README "This is not very well packaged code. It's
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not packaged at all. Don't come here expecting something you plop in
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a directory, twiddle a few things, and you're off and using it. Much
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work has to be done to get there."
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This file is intended to make some things *easier* but not easy. You
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are still required to make some changes on your own. There is no
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guaranteed solution yet and it's unlikely that there will be one in
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the nearest future.
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**********************************************************************
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0. OVERVIEW
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Some time ago I've seen Linux Source Navigator (LSN) at
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http://sunsite.unc.edu/linux-source. I was impressed.
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It was and is a wonderful tool to explore Linux kernel source code.
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Then Mozilla.org came up with a more elaborate tool that includes
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source browser with crossreferencing (LXR http://lxr.linux.no) and CVS
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tree control (Bonsai - http://www.mozilla.org/bonsai.html).
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While LXR formatting is not as pretty as LSN's one, it has a huge
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advantage - it lets you see where the identifier is defined and used.
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And Bonsai brings nice and easy (though sometimes incompatible with
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browsers other but Netscape's own) interface to the CVS history. This
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includes getting list of changes, diffs between revisions, etc.
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All in all LXR+Bonsai+other stuff beneath is a useful tool capable
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of handling huge projects.
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It's not that easy to make it work with other source tree but
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Mozilla's own but it's possible. And there are a lot of things to
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improve. Now I'm going to concentrate on the first goal - to make it
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work.
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1. GETTING IT UP
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First of all you have to get all the tools in mozilla's
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mozilla/webtools CVS repository. This includes lxr,bonsai,registry
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and tinderbox. You're likely will not need neither tinderbox but get
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it just in case.
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To get the sources you have to follow instructions on
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http://www.mozilla.org/bonsai.html.
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OK, now you've got the sources but don't rush to try it right
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away. It's likely that you will not be able to even start most of
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the scripts. There are more things you will have to get and install.
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The short list of the things you will need:
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1) MySQL database server.
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2) Perl 5.004+ plus modules:
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2a) Date::Parse
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2b) Mail::Mailer
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2c) DBI
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2d) DBD::mysql
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3) Some kind of HTTP server so you could use CGI scripts
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You could try running the ./configure script to see what tools it
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complains about right now. Mind you, it won't check for the MySQL
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database.
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1.1 Getting and setting up MySQL database
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Visit MySQL homepage at http://www.tcx.se and grab the latest
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stable binary release of the server. Sure, you can get sources and
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compile them yourself, but binaries are the easiest and the fastest
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way to get it up and running. Follow instructions found in
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manual. There is a section about installing binary-only
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distributions.
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You should create database bonsai. It may be a good idea to make it
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writable by all users on your machine and change access level
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later. This would save you a lot of time trying to guess whether it's
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permissions or a mistake in the script that make things fail.
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1.2 Perl + Mysql
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You will need Perl 5.004 with DB and Mysql extensions.
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DB is required to use LXR browser and crossreferencer for storing
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its database. Mysql is used by Bonsai.
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If you have Perl already installed, try to run genxref program from
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LXR suite. If it complains that it misses DB terribly then you're
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probably will have to get and install DB 1.86 distribution from one of the
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CPAN (www.cpan.org) mirrors in src/misc directory. I personally got it
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from http://www.cpan.org/src/misc/db.1.86.tar.gz. Having DB compiled
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and installed you will also have to rebuild and reinstall Perl
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itself so It would recognize and compile DB module in. This can be
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tricky if you have DB installed in some strange place as I did.
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I've got an error during linking phase - there was a function missing
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in hash/ndbm.c file, so I just commented it out. It may potentially
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cause troubles, but I think it does not matter in our case as this
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was intended only for DBM compatibility - the feature we don't really
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use.
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Now you hopefully have Perl + DB compiled installed and working.
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Time to set up Mysql module. This one is easy. Just follow
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instructions in MySQL manual. You have to read manuals sometimes..
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I think I'm getting older.. 8-)
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Next step is to get TimeDate module from one of the CPAN mirrors.
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Go to CPAN search page
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(http://theory.uwinnipeg.ca/search/cpan-search.html) and search for
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the "TimeDate" module. Then get it and install.
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You also need to get the libnet and MailTools CPAN modules. They can
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both be found on CPAN at CPAN/modules/by-authors/id/GBARR.
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1.3 HTTP server
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You have a freedom of choice here - Apache, Netscape or any other
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server on UNIX would do. The only thing - to make configuration easier
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you'd better run HTTP daemon on the same machine that you run MySQL
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server on. Make sure that you can access 'bonsai' database with user
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id you're running the daemon with.
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2. TWEAKING THE TOOLS
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Now you should have all necessary tools to be able to run LXR and
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Bonsai scripts and see why the wouldn't work for you right now.
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2.1 LXR
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The first thing to set up is LXR tool. All it needs is the source
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tree (not CVS tree). It's relatively easy and works almost right of
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the box. Follow instructions in LXR README file.
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Having set LXR you will see that regardless what your source tree
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contains you will see that everything refers to it as Mozilla. Mozilla
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is a great thing and this tool was primarily tailored to mozilla tree
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but you'd like to control your own tree. First step is to edit your
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Here is the short list of changes I had to make
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file: ident
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1) change "&root=/cvsroot" to your CVSROOT path
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2) change "file=/mozilla/" to the directory under CVSROOT where
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your sources are. In my case it is just "/"
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file: index.html
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Nothing vital here but probably worth changing to reflect your own
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environment
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file: lxr.conf
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Changes to this file are described in LXR README file and are
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quite simple.
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file: source
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You may find it useful to uncomment "$img = "/icons/..." lines if
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you use Explorer as it does not have internal-gopher-* images
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built in. Actually Bonsai contains a lot of netscapism that will
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make your IE4 unhappy anyway. You'd better stick with Netscape if
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you are going to use LXR/Bonsai
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file: template-*
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Here you will probably want to watch closely at the places where
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you see the word 'mozilla' near '.cgi'. There are a lot of
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mozilla-specific paths hardcoded
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change/get rid of banner that loads straight from mozilla.org that
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may be very dangerous if you're working for micro$oft and your
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boss comes by.. 8-)
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2.2 Bonsai
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This stuff sometimes gets very specific about your CVS repository
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setup. You have to make a lot of changes until more portable
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configuration mechanism is introduced.
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These steps should create a basic Bonsai install:
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./configure
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make install
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You might want to give the option --prefix=<path> to configure to
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install Bonsai in another place than /usr/local, e.g. /var/www. It
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will make a new directory named "bonsai" in the prefix directory you specify.
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Ensure that the bonsai cgi programs can write and create files in the
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data directory. Typically this means making the data directory owned by
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the web cgi id. Bonsai does not need to change the executable files in the
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main bonsai directory so these can be owned as root.
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Edit data/treeconfig.pl file as described in README file. Create
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appropriate data/XXX directory for each tree XXX you've configured in
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'treeconfig.pl'. This file maps the names of trees to branch/module
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combinations. You will need to have at least one module in your CVS
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repository to run Bonsai. Typically users create a module called All
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which contains all the directories in the CVS repository. All
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repositories must be written as if they were local repositories (eg
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'/cvsroot') without hostnames or ':pserver:'. The cgi-bin scripts
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will access these directories on the web machine and they must contain
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the ',v' files which match cvsroot as listed in the checkin mail from
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the real CVS machine.
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Go to the data directory and run
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trapdoor <admin password here> >data/passwd
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it will set up admin's password.
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Bonsai should now be accessible via a web browser but not all
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functionality is installed yet. Visit admin.cgi and set all the parameters.
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That's basically it. With some luck and persistence you will have 90%
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working system at this point. A lot of these things are just asking to be
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fixed in near feature. And I hope they will be.
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3. Setting up database
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This is quite simple but time consuming operation.
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First create database structure using maketable.sh script. You might
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want to edit it to use the user and password you want for the bonsai
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database.
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You must ensure that your web machine can access the CVS repositories
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raw data files (',v' files). If the CVS repository is on another
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machine then the web machine must be configured to be able to read the
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files as if they were stored with the same pathes on the Web
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machine. Uually this is accomplished via an NFS read only mount of the
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cvsroot. You can check this configuration by looking at the file
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$CVSROOT/modules,v (perhaps this needs the prefix trimmed from this
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string to make a vaild path name). This file should be readable on
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both the CVS machine and on the web machine.
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Then go to Bonsai administration page and press "Rebuild CVS history"
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button. Then you may go to the theater and watch a movie or two. It
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will take a lot of time. It takes several seconds to process one
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file. The more revisions in file the more time it will take. My SUN
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workstation with 2x200Mhz UltraSPARC processors run about an hour to
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process about 4K files with 20K+ revisions. Your mileage may vary.
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If you need to do this more then once you may wish to purge ethe
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legaldirs file in the data directory. This is a cache file which
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holds the names of the directories in CVS, if a directory is not
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listed here it will not be loaded into the database. Changes to the
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modules file shoud probably be followed by a deletion of the legaldirs
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file.
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I have also found it useful to rerun maketables.sh before reloading the
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CVS information. If I forget to do this step occasionally the load
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will fail in the middle because of duplicate data in the table.
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Copy "dolog.pl" to your CVSROOT directory, and check it in. Add
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"dolog.pl" to CVSROOT/checkoutlist, and check it in. Then, add a line
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to your CVSROOT/loginfo file that says something like:
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ALL $CVSROOT/CVSROOT/dolog.pl -r /cvsroot bonsai-checkin-daemon@my.bonsai.machine
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Replace "/cvsroot" with the name of the CVS root directory, and
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"my.bonsai.machine" with the name of the machine Bonsai runs on. Now,
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on my.bonsai.machine, add a mail alias so that mail sent to
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"bonsai-checkin-daemon" will get piped to handleCheckinMail.tcl. The
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first argument to handleCheckinMail.tcl is the directory that bonsai
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is installed in. E.g. in /etc/aliases, add
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bonsai-checkin-daemon: "|/usr/local/bonsai/handleCheckinMail.pl /usr/local/bonsai"
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or whatever is appropriate for your mail transport agent.
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4. Things to do
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a) There should be better way to track CVS tree changes. Now it's done
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by making CVS send e-mail about each checkin. (See the comments at
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the top of dolog.pl for some clues.) One alternative theory would be
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to take advantage of the CVS history command, which provides
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all necessary information to get the list of recently committed files, so
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there is no need to send/process email. Just set up a cron job that
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will periodically look for CVS tree changes and update database. On
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the other hand, it's not at all clear how efficient the cvs history
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command is for large, active repositories.
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b) Better configuration. One should not hardcode CVS tree <-> Source
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tree translations. Another thing to configure - banners.
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c) LXR could be improved in a number of ways. Using MySQL database
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instead of DB would probably be a good idea. It's unclear what impact
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it will have on performance though. Incremental database updates would
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be nice. It might also be nice to borrow syntax highlighting from LSN.
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5. Conclusion.
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OK. This may or may not work for you. But I hope you had a great
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time trying. Or just reading.
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Any suggestions/additions are welcome.
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