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package Local::Homedir;
# homedir management functions
#
# Copyright (C) 2019 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 <https://www.gnu.org/licenses/>.
# This code must be as portable as possible. Only core perl modules.
use strict;
use warnings;
use autodie;
use Cwd qw(getcwd realpath);
use File::Find;
use File::Spec::Functions;
use Exporter 'import';
use File::Temp qw(tempfile);
our @EXPORT = qw( normalise_mrconfig src_register_all src_cleanup );
our %debian_source_repos;
sub normalise_mrconfig {
my $master = $ENV{HOME} . "/src/dotfiles/.mrconfig.in";
my $target = $ENV{HOME} . "/.mrconfig";
unlink $target if -e $target and not -f $target;
my %master_blocks = blocks_from_file($master);
my %target_blocks = -f $target ? blocks_from_file($target) : ();
my $warning = "DO NOT EDIT THIS BLOCK; automatically updated from";
# filter out any DO NOT EDIT comments because if these blocks were
# removed from ~/.mrconfig.in but the repos are still present on
# this machine, those lines would be misleading
$target_blocks{$_} =~ s/^# ($warning| $master)\n//mg
for keys %target_blocks;
for (keys %master_blocks) {
$target_blocks{$_} = "# $warning\n# $master\n" . join "\n",
grep !/^\s*#|^\s*$/, split "\n", $master_blocks{$_};
}
open my $fh, '>', $target;
print $fh "# -*- mode: conf -*-\n";
# any DEFAULT has to come first to have effect on the proceding
# blocks
say_block($fh, "DEFAULT", delete $target_blocks{DEFAULT})
if $target_blocks{DEFAULT};
say_block($fh, $_, $target_blocks{$_}) for keys %target_blocks;
return 0;
}
sub blocks_from_file ($) {
my $file = shift;
my %blocks;
my $current_block;
open my $fh, '<', $file;
while (<$fh>) {
if (/^\[(.+)\]$/) {
$current_block = $1;
} elsif (defined $current_block) {
$blocks{$current_block} .= $_;
}
}
# drop trailing newlines from the text of each block
{ local $/ = ''; chomp $blocks{$_} foreach keys %blocks }
return %blocks;
}
sub src_register_all {
chdir;
my @known_repos;
foreach my $f (".mrconfig", "src/dotfiles/lib-src/mr/config") {
open my $fh, "<", $f;
while (<$fh>) {
if (/^\[(src\/.+)\]$/) {
push @known_repos, $ENV{HOME}."/$1";
}
}
}
find({wanted => sub {
return unless is_repo($_);
my $oldpwd = getcwd;
chdir $_;
my $register_out = `mr -c $ENV{HOME}/.mrconfig register 2>&1`;
unless ($? == 0) {
print STDERR "mr register: $File::Find::name\n";
print STDERR $register_out."\n";
die "src_register_all mr register attempt failed";
}
chdir $oldpwd;
}, preprocess => sub {
my $cwd = getcwd();
# once we've found a repo, don't search inside it for more repos
return () if is_repo($cwd);
my @entries;
# don't process repos mr already knows about
foreach my $entry (@_) {
my $entry_path = $cwd."/$entry";
push @entries, $entry
unless grep /\A$entry_path\z/, @known_repos;
}
return @entries;
}}, "src");
}
sub src_cleanup {
return unless eval "use Dpkg::Changelog::Parse; use Dpkg::Version; 1";
find({
wanted => sub {
my $dir = $_;
my $ch = catfile($dir, "debian", "changelog");
# if no changelog on the current branch, see if there is
# one on another relevant branch (this covers ~/src/p5-*)
unless (-f $ch) {
return unless is_repo($dir);
my @branches
= grep
m#^refs/(?:heads/debian$|(?:heads|remotes/dgit)/dgit/)#,
`git -C $dir for-each-ref --format='%(refname)' refs/heads/ refs/remotes/dgit/`;
chomp @branches;
my $branch;
for (@branches) {
$branch = $_, last
if grep m#debian/changelog#,
`git -C $dir ls-tree $_ debian/changelog`;
}
return unless $branch;
(my $fh, $ch) = tempfile UNLINK => 1;
open my $ph, "-|", "git", "-C", $dir, "cat-file", "blob",
"$branch:debian/changelog";
print $fh $_ for <$ph>;
close $fh;
}
my $changelog_entry = changelog_parse(file => $ch);
$debian_source_repos{ $changelog_entry->{source} }
= catfile getcwd, $dir;
},
preprocess => sub {
# skip .git (to avoid .git/dgit/unpack dirs), and once
# we've found a source package, don't search inside
# for more source packages
-f catfile("debian", "changelog")
? ()
: grep { $_ ne ".git" } @_
}
},
"$ENV{HOME}/src"
);
while (my ($source, $dir) = each %debian_source_repos) {
# binary package names may not be source package names, so
# have to handle those separately
unlink glob catfile $dir, "..", "*.deb";
my $prefix = catfile $dir, "..", $source . "_";
unlink glob $prefix . "*" . $_
for ".dsc", ".diff.gz", ".upload", ".inmulti", ".changes",
".build", ".buildinfo", ".debian.tar.*", "[0-9~].tar.*";
# ^ last one is native package tarballs but not orig.tars,
# which are handled separately
# we keep the two most recent orig.tar
my @origs = sort {
$a =~ /_([^_]+)\.orig\.tar/;
my $ver_a = Dpkg::Version->new("$1");
$b =~ /_([^_]+)\.orig\.tar/;
my $ver_b = Dpkg::Version->new("$1");
version_compare($ver_b, $ver_a);
} grep !/\.asc\z/, map realpath($_), glob "$prefix*.orig.tar.*";
if (@origs > 2) {
shift @origs;
shift @origs;
for (@origs) {
unlink $_;
unlink "$_.asc" if -e "$_.asc";
}
}
}
# could also run `clean-patch-queues -y` here
}
sub say_block (*$$) {
my ($fh, $block, $text) = @_;
print $fh "\n[$block]\n";
print $fh $text;
print $fh "\n";
}
sub is_repo { -e "$_[0]/.git" or -d "$_[0]/.hg" }
1;
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