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#!/usr/bin/perl
# Copyright (C) 2020 Sean Whitton
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
use strict;
use warnings;
use Cwd qw(getcwd);
use List::Util qw(uniq);
use File::Spec::Functions qw(catfile);
die "usage: install-git-hooks NAME\n" unless @ARGV == 1;
my $target = $ENV{MR_REPO} || getcwd;
my $source = catfile $ENV{HOME}, qw(src dotfiles hooks git), $ARGV[0];
my $chained_hook = catfile $ENV{HOME}, qw(src dotfiles hooks git chained_hook);
opendir(my $dirh, $source) or die "could not find $source dir\n";
my @hooks = grep { $_ ne '.' and $_ ne '..' } readdir $dirh;
my @hook_types = uniq map { /^([^_]+)_/; $1 // () } @hooks;
chdir $target;
my $config_hooks_path = `git config core.hooksPath`;
chomp(my $hook_dir = $config_hooks_path || `git rev-parse --git-path hooks`);
foreach my $hook (@hooks) {
unlink catfile $hook_dir, $hook;
symlink catfile($source, $hook), catfile($hook_dir, $hook);
}
foreach my $hook_type (@hook_types) {
unlink catfile $hook_dir, $hook_type;
symlink $chained_hook, catfile $hook_dir, $hook_type;
}
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