clean up gl-system-install
- redo it in perl - make it flow easier, with all the cruft in subs and overall, make it obvious that this program does for a manual install what doc/packaging.mkd advices packagers to do.
This commit is contained in:
Sitaram Chamarty
parent
92e0577154
commit
6e7404fe8a
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@ -19,8 +19,8 @@ $GL_CONF_COMPILED="$GL_ADMINDIR/conf/gitolite.conf-compiled.pm";
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# DO NOT CHANGE THE NEXT FOUR LINES UNLESS YOU REALLY KNOW WHAT YOU'RE DOING.
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# These variables are set automatically by the install method you choose.
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# (PACKAGE MAINTAINERS: PLEASE READ doc/packaging.mkd)
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# $GL_PACKAGE_CONF = "";
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# $GL_PACKAGE_HOOKS = "";
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$GL_PACKAGE_CONF = "/tmp/share/gitolite/conf";
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$GL_PACKAGE_HOOKS = "/tmp/share/gitolite/hooks";
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# ------------------------------------------------------------------------------
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# most often used/changed variables
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@ -1,117 +1,129 @@
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#!/bin/sh
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#!/usr/bin/perl
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use strict;
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use warnings;
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use English; # so I can say $EUID instead of $>
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use File::Path qw(make_path);
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# install the gitolite software *system wide*. Not too robust, fancy, etc.,
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# but does have a usage message and catches simple problems.
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# install the gitolite software *system wide*.
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usage() { echo "
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Usage:
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$0 [shared-bin-dir shared-conf-dir shared-hooks-dir]
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# This program does for a manual install (root or non-root method) what
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# doc/packaging.mkd describes is needed to be done by a packager.
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Installs the gitolite software (just the software, not keys or repos)
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within \$HOME when invoked by a user, or system-wide when invoked by root.
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# Packagers can also use this program to do the same thing if they wish.
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Takes 0 or 3 absolute paths. The first one must be part of \$PATH.
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my ( $bin_dir, $conf_dir, $hooks_dir );
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Examples:
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# as root
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$0
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check_args();
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argv_or_defaults();
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check_dirs();
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# this defaults to:
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$0 /usr/local/bin /var/gitolite/conf /var/gitolite/hooks
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use FindBin;
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# we assume the standard gitolite source tree is here!
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chdir( $FindBin::Bin . "/.." ) or die "can't cd: $!\n";
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# as a normal user
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$0
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# notice the 'and' for failure after system() calls, because they return
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# "shell truth" not "perl truth"
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# this defaults to:
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$0 \$HOME/bin \$HOME/share/gitolite/conf \$HOME/share/gitolite/hooks
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# copy src
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system("cp src/* $bin_dir") and die "cp src/* to $bin_dir failed";
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[RPM packagers: you can supply a 4th argument to specify a 'buildroot'
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directory. DEB folks would call this a 'DESTDIR', I believe. In this
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usage the first 3 arguments are NOT optional]
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"
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exit 1;
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}
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die() { echo >&2; echo "$@" >&2; echo >&2; echo Run "$0 -h" for a detailed usage message. >&2; exit 1; }
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[ "$1" = "-h" ] && usage
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validate_dir() {
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echo $1 | grep '^/' >/dev/null || die "$1 should be an absolute path"
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[ -d $1 ] || mkdir -p $1 || die "$1 does not exist and could not be created"
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}
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# if we have a buildroot, set that up first
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buildroot=$4;
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[ -n "$buildroot" ] && validate_dir $buildroot
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[ -n "$buildroot" ] && buildroot=$buildroot/
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# either all 3 args must be supplied or none at all
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[ -n "$1" ] && [ -z "$3" ] && die "I need all 3 directories or none at all"
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# supply default values to args 1, 2, and 3 if not provided
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[ -z "$1" ] && {
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euid=`perl -e 'print $>'`
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if [ "$euid" = "0" ]
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then
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set /usr/local/bin /var/gitolite/conf /var/gitolite/hooks
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else
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set $HOME/bin $HOME/share/gitolite/conf $HOME/share/gitolite/hooks
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fi
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echo "using default values for EUID=$euid:" >&2
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echo "$@" >&2
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}
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gl_bin_dir=$1; validate_dir $buildroot$gl_bin_dir
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gl_conf_dir=$2; validate_dir $buildroot$gl_conf_dir
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gl_hooks_dir=$3; validate_dir $buildroot$gl_hooks_dir
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bindir=`echo $0 | perl -lpe 's/^/$ENV{PWD}\// unless /^\//; s/\/[^\/]+$//;'`
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cd $bindir/.. # we assume the standard gitolite source tree is here!
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cp src/* $buildroot$gl_bin_dir || die "cp src/* to $buildroot$gl_bin_dir failed"
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perl -lpi -e "s(^GL_PACKAGE_CONF=.*)(GL_PACKAGE_CONF=$gl_conf_dir)" $buildroot$gl_bin_dir/gl-setup
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# fixup GL_PACKAGE_CONF in gl-setup
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replace( "/tmp/share/gitolite/conf", $conf_dir, "$bin_dir/gl-setup" );
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# record which version is being sent across; we assume it's HEAD
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if git rev-parse --is-inside-work-tree >/dev/null 2>&1
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then
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git describe --tags --long --dirty=-dt 2>/dev/null > conf/VERSION || die "git describe failed -- your git is probably too old"
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else
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[ -f conf/VERSION ] || echo '(unknown)' > conf/VERSION
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fi
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record_version();
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cp -R conf/* $buildroot$gl_conf_dir || die "cp conf/* to $buildroot$gl_conf_dir failed"
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perl -lpi \
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-e "s(^#\s*\\\$GL_PACKAGE_CONF\s*=.*)(\\\$GL_PACKAGE_CONF = '$gl_conf_dir';)" \
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$buildroot$gl_conf_dir/example.gitolite.rc
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perl -lpi \
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-e "s(^#\s*\\\$GL_PACKAGE_HOOKS\s*=.*)(\\\$GL_PACKAGE_HOOKS = '$gl_hooks_dir';)" \
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$buildroot$gl_conf_dir/example.gitolite.rc
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# copy conf
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system("cp -R conf/* $conf_dir") and die "cp conf/* to $conf_dir failed";
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cp -R hooks/* $buildroot$gl_hooks_dir || die "cp hooks/* to $buildroot$gl_hooks_dir failed"
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# fixup GL_PACKAGE_CONF and GL_PACKAGE_HOOKS in the example rc
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replace( "/tmp/share/gitolite/conf", $conf_dir, "$conf_dir/example.gitolite.rc" );
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replace( "/tmp/share/gitolite/hooks", $hooks_dir, "$conf_dir/example.gitolite.rc" );
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# ----
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# copy hooks
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system("cp -R hooks/* $hooks_dir") and die "cp hooks/* to $hooks_dir failed";
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# check if $gl_bin_dir is in $PATH and advise the user if needed
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which=`which gl-setup 2>/dev/null`
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# this is some extra gunk for people with crap setups
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path_advice();
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path_advice="
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Since gl-setup MUST be run from the PATH (and not as src/gl-setup or such),
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you must fix this before running gl-setup. The simplest way is to add
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exit 0;
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PATH=$gl_bin_dir:\$PATH
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# ----------------------------------------------------------------------
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to the end of your bashrc or similar file. You can even simply run that
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command manually each time you log in and want to run a gitolite command."
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sub check_args {
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return unless @ARGV;
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return if @ARGV == 3;
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die "I need all 3 directories (bin-dir, conf-dir, hooks-dir) or none\n";
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}
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[ -z "$which" ] && die " ***** WARNING *****
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gl-setup is not in your \$PATH.
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$path_advice"
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sub argv_or_defaults {
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( $bin_dir, $conf_dir, $hooks_dir ) = @ARGV;
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return if @ARGV;
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which=`dirname $which`
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[ "$which" = "$gl_bin_dir" ] || die " ***** WARNING *****
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$which precedes $gl_bin_dir in your \$PATH,
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and it *also* contains gl-setup. This is almost certainly going to confuse
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you or me later.
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$path_advice"
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unless (@ARGV) {
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my $HOME = $ENV{HOME};
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if ( $EUID eq "0" ) {
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( $bin_dir, $conf_dir, $hooks_dir ) = qw(/usr/local/bin /var/gitolite/conf /var/gitolite/hooks);
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} else {
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( $bin_dir, $conf_dir, $hooks_dir ) = ( "$HOME/bin", "$HOME/share/gitolite/conf", "$HOME/share/gitolite/hooks" );
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}
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print STDERR "using default values for EUID=$EUID:\n";
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print STDERR join( ", ", $bin_dir, $conf_dir, $hooks_dir ), "\n";
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}
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}
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exit 0
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sub check_dirs {
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for my $dir ( $bin_dir, $conf_dir, $hooks_dir ) {
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die "$dir should be an absolute path\n" unless $dir =~ m(^/);
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make_path($dir);
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-d $dir or die "$dir does not exist and could not be created\n";
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}
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}
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sub replace {
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my ( $old, $new, $file ) = @_;
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system("perl -lpi -e 's($old)($new)' $file");
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}
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sub record_version {
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# this is really much easier in plain shell :(
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if ( system("git rev-parse --is-inside-work-tree >/dev/null 2>&1") ) {
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# for system() calls, perl 'true/success' is shell 'false/fail', which
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# means the command failed; we are not in a git work tree
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-f "conf/VERSION" or system("echo '(unknown)' > conf/VERSION");
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} else {
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system("git describe --tags --long --dirty=-dt 2>/dev/null > conf/VERSION")
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and die "git describe failed -- your git is probably too old";
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}
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}
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sub path_advice {
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my $path_advice = "
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Since gl-setup MUST be run from the PATH (and not as src/gl-setup or
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such), you must fix this before running gl-setup. Just add
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PATH=$bin_dir:\$PATH
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to the end of your bashrc or similar file. You can even simply do that
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manually each time you log in and want to run a gitolite command.\n";
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for my $p ( split( ':', $ENV{PATH} ) ) {
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return if $p eq $bin_dir; # all is well
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if ( -x "$p/gl-setup" ) {
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#<<<
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die " ***** WARNING *****\n" .
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" you have installed the sources into $bin_dir, but\n" .
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" $p in your \$PATH *also* contains gl-setup.\n" .
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" This is almost certainly going to confuse you or me later.\n" .
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$path_advice;
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#>>>
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}
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}
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#<<<
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die " ***** WARNING *****\n" .
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" gl-setup is not in your \$PATH.\n" .
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$path_advice;
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#>>>
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}
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