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-rw-r--r--Debian/Dgit.pm59
1 files changed, 35 insertions, 24 deletions
diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index 348f608..3ac042c 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -2,7 +2,7 @@
# dgit
# Debian::Dgit: functions common to dgit and its helpers and servers
#
-# Copyright (C) 2015-2016 Ian Jackson
+# Copyright (C) 2015-2019 Ian Jackson
#
# 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
@@ -29,7 +29,7 @@ use Config;
use Digest::SHA;
use Data::Dumper;
use IPC::Open2;
-use File::Path;
+use File::Path qw(:DEFAULT make_path);
use File::Basename;
use Dpkg::Control::Hash;
use Debian::Dgit::ExitStatus;
@@ -51,10 +51,12 @@ BEGIN {
server_branch server_ref
stat_exists link_ltarget rename_link_xf
hashfile
- fail failmsg ensuredir must_getcwd executable_on_path
+ fail failmsg ensuredir ensurepath
+ must_getcwd executable_on_path
waitstatusmsg failedcmd_waitstatus
failedcmd_report_cmd failedcmd
runcmd shell_cmd cmdoutput cmdoutput_errok
+ @git
git_rev_parse changedir_git_toplevel git_cat_file
git_get_ref git_get_symref git_for_each_ref
git_for_each_tag_referring is_fast_fwd
@@ -112,6 +114,8 @@ our $gdrlast_refprefix = 'debrebase-last';
our $printdebug_when_debuglevel = 1;
our $debugcmd_when_debuglevel = 1;
+our (@git) = qw(git);
+
# these three all go together, only valid after record_maindir
our $maindir;
our $maindir_gitdir;
@@ -218,9 +222,7 @@ sub shellquote {
sub printcmd {
my $fh = shift @_;
my $intro = shift @_;
- print $fh $intro," " or confess "$!";
- print $fh shellquote @_ or confess "$!";
- print $fh "\n" or confess "$!";
+ print $fh $intro." ".(join '', shellquote @_)."\n" or confess "$!";
}
sub debugcmd {
@@ -309,6 +311,12 @@ sub ensuredir ($) {
confess "mkdir $dir: $!";
}
+sub ensurepath ($$) {
+ my ($firsttocreate, $subdir) = @_; # creates necessary bits of $subidr
+ ensuredir $firsttocreate;
+ make_path "$firsttocreate/$subdir";
+}
+
sub must_getcwd () {
my $d = getcwd();
defined $d or fail f_ "getcwd failed: %s\n", $!;
@@ -649,7 +657,10 @@ sub resolve_upstream_version ($$) {
}
$used = $tried[-1];
$message = f_ 'using upstream from git tag %s', $used;
- }
+ } elsif ($new_upstream =~ m{^refs/tags/($versiontag_re)$}s) {
+ $message = f_ 'using upstream from git tag %s', $1;
+ $used = $1;
+ }
$new_upstream = git_rev_parse $new_upstream;
return ($new_upstream, $used, $message);
@@ -882,7 +893,7 @@ sub reflog_cache_insert ($$$) {
# When we no longer need to support squeeze, use --create-reflog
# instead of this:
my $parent = $ref; $parent =~ s{/[^/]+$}{};
- ensuredir "$maindir_gitcommon/logs/$parent";
+ ensurepath "$maindir_gitcommon/logs", "$parent";
my $makelogfh = new IO::File "$maindir_gitcommon/logs/$ref", '>>'
or confess "$!";
@@ -976,7 +987,7 @@ sub reflog_cache_lookup ($$) {
# changedir playground
# changedir $maindir
#
-# playtree_setup $local_git_cfg
+# playtree_setup
# # ^ call in some (perhaps trivial) subdir of playground
#
# rmtree playground
@@ -1035,28 +1046,28 @@ sub fresh_playground ($) {
# ----- playtrees -----
-sub playtree_setup (;$) {
- my ($t_local_git_cfg) = @_;
- $t_local_git_cfg //= $local_git_cfg;
+sub playtree_setup () {
# for use in the playtree
# $maindir must be set, eg by calling record_maindir or fresh_playground
- runcmd qw(git init -q);
- runcmd qw(git config gc.auto 0);
- foreach my $copy (qw(user.email user.name user.useConfigOnly
- core.sharedRepository
- core.compression core.looseCompression
- core.bigFileThreshold core.fsyncObjectFiles)) {
- my $v = $t_local_git_cfg->{$copy};
- next unless $v;
- runcmd qw(git config), $copy, $_ foreach @$v;
- }
# this is confusing: we have
# . playtree, not a worktree, has .git/, our cwd
# $maindir might be a worktree so
# $maindir_gitdir contains our main working "dgit", HEAD, etc.
# $maindir_gitcommon the shared stuff, including .objects
- rmtree('.git/objects');
- symlink "$maindir_gitcommon/objects",'.git/objects' or confess "$!";
+
+ # we need to invoke git-playtree-setup via git because
+ # there may be config options it needs which are only available
+ # to us, sensibly, in @git
+
+ # And, we look for it in @INC too. This is a bit perverse.
+ # We do this because in the Debian packages we want to have
+ # a copy of this script in each binary package, rather than
+ # making yet another .deb or tangling the dependencies.
+ # @INC is conveniently available.
+ my $newpath = join ':', +(grep { !m/:/ } @INC),
+ '/usr/share/dgit', $ENV{PATH};
+ runcmd qw(env), "PATH=$newpath", @git, qw(playtree-setup .);
+
ensuredir '.git/info';
open GA, "> .git/info/attributes" or confess "$!";
print GA "* $negate_harmful_gitattrs\n" or confess "$!";