389 lines
12 KiB
Perl
389 lines
12 KiB
Perl
package Gitolite::Rc;
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# everything to do with 'rc'. Also defines some 'constants'
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# ----------------------------------------------------------------------
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@EXPORT = qw(
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%rc
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glrc
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query_rc
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version
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trigger
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$REMOTE_COMMAND_PATT
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$REF_OR_FILENAME_PATT
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$REPONAME_PATT
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$REPOPATT_PATT
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$USERNAME_PATT
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$UNSAFE_PATT
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);
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use Exporter 'import';
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use Getopt::Long;
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use Gitolite::Common;
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# ----------------------------------------------------------------------
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our %rc;
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# ----------------------------------------------------------------------
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# pre-populate some important rc keys
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# ----------------------------------------------------------------------
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$rc{GL_BINDIR} = $ENV{GL_BINDIR};
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$rc{GL_LIBDIR} = $ENV{GL_LIBDIR};
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# these keys could be overridden by the rc file later
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$rc{GL_REPO_BASE} = "$ENV{HOME}/repositories";
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$rc{GL_ADMIN_BASE} = "$ENV{HOME}/.gitolite";
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$rc{LOG_TEMPLATE} = "$ENV{HOME}/.gitolite/logs/gitolite-%y-%m.log";
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# variables that should probably never be changed but someone will want to, I'll bet...
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# ----------------------------------------------------------------------
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#<<<
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$REMOTE_COMMAND_PATT = qr(^[-0-9a-zA-Z._\@/+ :,\%=]*$);
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$REF_OR_FILENAME_PATT = qr(^[0-9a-zA-Z][-0-9a-zA-Z._\@/+ :,]*$);
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$REPONAME_PATT = qr(^\@?[0-9a-zA-Z][-0-9a-zA-Z._\@/+]*$);
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$REPOPATT_PATT = qr(^\@?[[0-9a-zA-Z][-0-9a-zA-Z._\@/+\\^$|()[\]*?{},]*$);
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$USERNAME_PATT = qr(^\@?[0-9a-zA-Z][-0-9a-zA-Z._\@+]*$);
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$UNSAFE_PATT = qr([`~#\$\&()|;<>]);
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#>>>
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# ----------------------------------------------------------------------
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# find the rc file and 'do' it
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# ----------------------------------------------------------------------
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my $current_data_version = "3.0";
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my $rc = glrc('filename');
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do $rc if -r $rc;
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if ( defined($GL_ADMINDIR) ) {
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say2 "";
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say2 "FATAL: '$rc' seems to be for older gitolite; please see doc/g2migr.mkd\n" . "(online at http://sitaramc.github.com/gitolite/g2migr.html)";
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exit 1;
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}
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# let values specified in rc file override our internal ones
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# ----------------------------------------------------------------------
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@rc{ keys %RC } = values %RC;
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# add internal triggers
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# ----------------------------------------------------------------------
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# is the server/repo in a writable state (i.e., not down for maintenance etc)
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unshift @{ $rc{ACCESS_1} }, 'Writable::access_1';
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# (testing only) override the rc file silently
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# ----------------------------------------------------------------------
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# use an env var that is highly unlikely to appear in real life :)
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do $ENV{G3T_RC} if exists $ENV{G3T_RC} and -r $ENV{G3T_RC};
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# fix some env vars, setup gitolite internal "env" vars (aka rc vars)
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# ----------------------------------------------------------------------
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$ENV{PATH} = "$ENV{GL_BINDIR}:$ENV{PATH}";
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{
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$rc{GL_TID} = $ENV{GL_TID} ||= $$;
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# TID: loosely, transaction ID. The first PID at the entry point passes
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# it down to all its children so you can track each access, across all the
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# various commands it spawns and actions it generates.
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$rc{GL_LOGFILE} = $ENV{GL_LOGFILE} ||= gen_lfn( $rc{LOG_TEMPLATE} );
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}
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# these two are meant to help externally written commands (see
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# src/commands/writable for an example)
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$ENV{GL_REPO_BASE} = $rc{GL_REPO_BASE};
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$ENV{GL_ADMIN_BASE} = $rc{GL_ADMIN_BASE};
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# ----------------------------------------------------------------------
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use strict;
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use warnings;
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# ----------------------------------------------------------------------
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my $glrc_default_text = '';
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{
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local $/ = undef;
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$glrc_default_text = <DATA>;
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}
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sub glrc {
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my $cmd = shift;
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if ( $cmd eq 'default-filename' ) {
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return "$ENV{HOME}/.gitolite.rc";
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} elsif ( $cmd eq 'default-text' ) {
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return $glrc_default_text if $glrc_default_text;
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_die "rc file default text not set; this should not happen!";
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} elsif ( $cmd eq 'filename' ) {
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# where is the rc file?
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# search $HOME first
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return "$ENV{HOME}/.gitolite.rc" if -f "$ENV{HOME}/.gitolite.rc";
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return '';
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} elsif ( $cmd eq 'current-data-version' ) {
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return $current_data_version;
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} else {
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_die "unknown argument to glrc: '$cmd'";
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}
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}
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# exported functions
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# ----------------------------------------------------------------------
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my $all = 0;
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my $nonl = 0;
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my $quiet = 0;
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sub query_rc {
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my @vars = args();
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no strict 'refs';
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if ($all) {
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for my $e ( sort keys %rc ) {
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print "$e=" . ( defined( $rc{$e} ) ? $rc{$e} : 'undef' ) . "\n";
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}
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exit 0;
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}
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my @res = map { $rc{$_} } grep { $rc{$_} } @vars;
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print join( "\t", @res ) . ( $nonl ? '' : "\n" ) if not $quiet and @res;
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# shell truth
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exit 0 if @res;
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exit 1;
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}
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sub version {
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my $version = '';
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$version = '(unknown)';
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for ("$ENV{GL_BINDIR}/VERSION") {
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$version = slurp($_) if -r $_;
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}
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chomp($version);
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return $version;
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}
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sub trigger {
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my $rc_section = shift;
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if ( exists $rc{$rc_section} ) {
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if ( ref( $rc{$rc_section} ) ne 'ARRAY' ) {
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_die "'$rc_section' section in rc file is not a perl list";
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} else {
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for my $s ( @{ $rc{$rc_section} } ) {
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my ( $pgm, @args ) = split ' ', $s;
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if ( my ( $module, $sub ) = ( $pgm =~ /^(.*)::(\w+)$/ ) ) {
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require Gitolite::Triggers;
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trace( 1, 'trigger', $module, $sub, @args, $rc_section, @_ );
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Gitolite::Triggers::run( $module, $sub, @args, $rc_section, @_ );
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} else {
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$pgm = "$ENV{GL_BINDIR}/triggers/$pgm";
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_warn("skipped command '$s'"), next if not -x $pgm;
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trace( 2, "command: $s" );
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_system( $pgm, @args, $rc_section, @_ ); # they better all return with 0 exit codes!
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}
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}
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}
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return;
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}
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trace( 2, "'$rc_section' not found in rc" );
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}
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# ----------------------------------------------------------------------
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=for args
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Usage: gitolite query-rc -a
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gitolite query-rc [-n] <list of rc variables>
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-a print all variables and values
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-n do not append a newline
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-q exit code only (shell truth; 0 is success)
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Example:
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gitolite query-rc GL_ADMIN_BASE UMASK
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# prints "/home/git/.gitolite<tab>0077" or similar
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gitolite query-rc -a
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# prints all known variables and values, one per line
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Note: '-q' is best used with only one variable.
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=cut
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sub args {
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my $help = 0;
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GetOptions(
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'all|a' => \$all,
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'nonl|n' => \$nonl,
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'quiet|q' => \$quiet,
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'help|h' => \$help,
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) or usage();
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usage("'-a' cannot be combined with other arguments or options") if $all and ( @ARGV or $nonl or $quiet );
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usage() if not $all and not @ARGV or $help;
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return @ARGV;
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}
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1;
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# ----------------------------------------------------------------------
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__DATA__
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# configuration variables for gitolite
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# This file is in perl syntax. But you do NOT need to know perl to edit it --
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# just mind the commas, use single quotes unless you know what you're doing,
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# and make sure the brackets and braces stay matched up!
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# (Tip: perl allows a comma after the last item in a list also!)
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%RC = (
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# if you're using mirroring, you need a hostname. This is *one* simple
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# word, not a full domain name. See documentation if in doubt
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# HOSTNAME => 'darkstar',
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UMASK => 0077,
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GIT_CONFIG_KEYS => '',
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# comment out if you don't need all the extra detail in the logfile
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LOG_EXTRA => 1,
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# settings used by external programs; uncomment and change as needed. You
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# can add your own variables for use in your own external programs; take a
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# look at the info and desc commands for perl and shell samples.
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# used by the CpuTime trigger
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# DISPLAY_CPU_TIME => 1,
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# CPU_TIME_WARN_LIMIT => 0.1,
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# used by the desc command
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# WRITER_CAN_UPDATE_DESC => 1,
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# used by the info command
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# SITE_INFO => 'Please see http://blahblah/gitolite for more help',
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# add more roles (like MANAGER, TESTER, ...) here.
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# WARNING: if you make changes to this hash, you MUST run 'gitolite
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# compile' afterward, and possibly also 'gitolite trigger POST_COMPILE'
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ROLES =>
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{
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READERS => 1,
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WRITERS => 1,
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},
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# uncomment (and change) this if you wish
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# DEFAULT_ROLE_PERMS => 'READERS @all',
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# comment out or uncomment as needed
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# these are available to remote users
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COMMANDS =>
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{
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'help' => 1,
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'desc' => 1,
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# 'fork' => 1,
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'info' => 1,
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# 'mirror' => 1,
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'perms' => 1,
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# 'sskm' => 1,
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'writable' => 1,
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# 'D' => 1,
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},
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# comment out or uncomment as needed
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# these will run in sequence during the conf file parse
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SYNTACTIC_SUGAR =>
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[
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# 'continuation-lines',
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],
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# comment out or uncomment as needed
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# these will run in sequence to modify the input (arguments and environment)
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INPUT =>
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[
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# if you use this, make this the first item in the list
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# 'CpuTime::input',
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# 'Mirroring::input',
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],
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# comment out or uncomment as needed
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# these will run in sequence just after the first access check is done
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ACCESS_1 =>
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[
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],
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# comment out or uncomment as needed
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# these will run in sequence just before the actual git command is invoked
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PRE_GIT =>
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[
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# if you use this, make this the first item in the list
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# 'renice 10',
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# 'Mirroring::pre_git',
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# see docs ("list of non-core programs shipped") for details
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# 'partial-copy',
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],
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# comment out or uncomment as needed
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# these will run in sequence just after the second access check is done
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ACCESS_2 =>
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[
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],
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# comment out or uncomment as needed
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# these will run in sequence after the git command returns
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POST_GIT =>
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[
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# 'Mirroring::post_git',
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# if you use this, make this the last item in the list
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# 'CpuTime::post_git',
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],
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# comment out or uncomment as needed
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# these will run in sequence before a new wild repo is created
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PRE_CREATE =>
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[
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],
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# comment out or uncomment as needed
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# these will run in sequence after a new wild repo is created
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POST_CREATE =>
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[
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'post-compile/update-git-configs',
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'post-compile/update-gitweb-access-list',
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'post-compile/update-git-daemon-access-list',
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],
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# comment out or uncomment as needed
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# these will run in sequence after post-update
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POST_COMPILE =>
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[
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'post-compile/ssh-authkeys',
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'post-compile/update-git-configs',
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'post-compile/update-gitweb-access-list',
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'post-compile/update-git-daemon-access-list',
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],
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);
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# ------------------------------------------------------------------------------
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# per perl rules, this should be the last line in such a file:
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1;
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# Local variables:
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# mode: perl
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# End:
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# vim: set syn=perl:
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