# dgit
# Integration between git and Debian-style archives
#
-# Copyright (C)2013 Ian Jackson
+# Copyright (C)2013-2015 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
# along with this program. If not, see <http://www.gnu.org/licenses/>.
use strict;
+$SIG{__WARN__} = sub { die $_[0]; };
use IO::Handle;
use Data::Dumper;
use IPC::Open2;
use Digest::SHA;
use Digest::MD5;
-use Config;
use Debian::Dgit;
our $ignoredirty = 0;
our $rmonerror = 1;
our @deliberatelies;
-our %supersedes;
+our %previously;
our $existing_package = 'dpkg';
our $cleanmode = 'dpkg-source';
our $changes_since_version;
our $keyid;
-our $debug = 0;
-open DEBUG, ">/dev/null" or die $!;
-
autoflush STDOUT 1;
our $remotename = 'dgit';
sub lrref () { return "refs/remotes/$remotename/".server_branch($csuite); }
sub rrref () { return server_ref($csuite); }
+sub lrfetchrefs () { return "refs/dgit-fetch/$isuite"; }
+
sub stripepoch ($) {
my ($vsn) = @_;
$vsn =~ s/^\d+\://;
}
our $us = 'dgit';
-our $debugprefix = '';
+initdebug('');
our @end;
END {
}
};
-our @signames = split / /, $Config{sig_name};
-
-sub waitstatusmsg () {
- if (!$?) {
- return "terminated, reporting successful completion";
- } elsif (!($? & 255)) {
- return "failed with error exit status ".WEXITSTATUS($?);
- } elsif (WIFSIGNALED($?)) {
- my $signum=WTERMSIG($?);
- return "died due to fatal signal ".
- ($signames[$signum] // "number $signum").
- ($? & 128 ? " (core dumped)" : ""); # POSIX(3pm) has no WCOREDUMP
- } else {
- return "failed with unknown wait status ".$?;
- }
-}
-
-sub printdebug { print DEBUG $debugprefix, @_ or die $!; }
-
-sub fail {
- my $s = "@_\n";
- my $prefix = $us.($we_are_responder ? " (build host)" : "").": ";
- $s =~ s/^/$prefix/gm;
- die $s;
-}
-
sub badcfg { print STDERR "$us: invalid configuration: @_\n"; exit 12; }
sub no_such_package () {
}
sub deliberately ($) {
- return !!grep { $_[0] eq $_ } @deliberatelies;
+ my ($enquiry) = @_;
+ return !!grep { $_ eq "--deliberately-$enquiry" } @deliberatelies;
+}
+
+sub deliberately_not_fast_forward () {
+ foreach (qw(not-fast-forward fresh-repo)) {
+ return 1 if deliberately($_) || deliberately("TEST-dgit-only-$_");
+ }
}
#---------- remote protocol support, common ----------
our ($dscdata,$dscurl,$dsc,$dsc_checked,$skew_warning_vsn);
-sub shellquote {
- my @out;
- local $_;
- foreach my $a (@_) {
- $_ = $a;
- if (m{[^-=_./0-9a-z]}i) {
- s{['\\]}{'\\$&'}g;
- push @out, "'$_'";
- } else {
- push @out, $_;
- }
- }
- return join ' ', @out;
-}
-
-sub printcmd {
- my $fh = shift @_;
- my $intro = shift @_;
- print $fh $intro," " or die $!;
- print $fh shellquote @_ or die $!;
- print $fh "\n" or die $!;
-}
-
-sub failedcmd {
- { local ($!); printcmd \*STDERR, "$us: failed command:", @_ or die $!; };
- if ($!) {
- fail "failed to fork/exec: $!";
- } elsif ($?) {
- fail "subprocess ".waitstatusmsg();
- } else {
- fail "subprocess produced invalid output";
- }
-}
-
sub runcmd {
- printcmd(\*DEBUG,$debugprefix."+",@_) if $debug>0;
+ debugcmd "+",@_;
$!=0; $?=0;
failedcmd @_ if system @_;
}
}
}
-sub cmdoutput_errok {
- die Dumper(\@_)." ?" if grep { !defined } @_;
- printcmd(\*DEBUG,$debugprefix."|",@_) if $debug>0;
- open P, "-|", @_ or die $!;
- my $d;
- $!=0; $?=0;
- { local $/ = undef; $d = <P>; }
- die $! if P->error;
- if (!close P) { printdebug "=>!$?\n" if $debug>0; return undef; }
- chomp $d;
- $d =~ m/^.*/;
- printdebug "=> \`$&'",(length $' ? '...' : ''),"\n" if $debug>0; #';
- return $d;
-}
-
-sub cmdoutput {
- my $d = cmdoutput_errok @_;
- defined $d or failedcmd @_;
- return $d;
-}
-
sub dryrun_report {
printcmd(\*STDERR,$debugprefix."#",@_);
}
'dgit-distro.debian.git-path' => '/dgit/debian/repos',
'dgit-distro.debian.git-check' => 'ssh-cmd',
'dgit-distro.debian.archive-query-url', 'https://api.ftp-master.debian.org/',
- 'dgit-distro.debian.archive-query-tls-key',
- '/etc/ssl/certs/%HOST%.pem:/etc/dgit/%HOST%.pem',
+# 'dgit-distro.debian.archive-query-tls-key',
+# '/etc/ssl/certs/%HOST%.pem:/etc/dgit/%HOST%.pem',
+# ^ this does not work because curl is broken nowadays
+# Fixing #790093 properly will involve providing providing the key
+# in some pacagke and maybe updating these paths.
+#
+# 'dgit-distro.debian.archive-query-tls-curl-args',
+# '--ca-path=/etc/ssl/ca-debian',
+# ^ this is a workaround but works (only) on DSA-administered machines
'dgit-distro.debian.diverts.alioth' => '/alioth',
'dgit-distro.debian/alioth.git-host' => 'git.debian.org',
'dgit-distro.debian/alioth.git-user-force' => '',
my @cmd = (@git, qw(config --), $c);
my $v;
{
- local ($debug) = $debug-1;
+ local ($debuglevel) = $debuglevel-2;
$v = cmdoutput_errok @cmd;
};
if ($?==0) {
return $c;
}
-sub git_get_ref ($) {
- my ($refname) = @_;
- my $got = cmdoutput_errok @git, qw(show-ref --), $refname;
- if (!defined $got) {
- $?==256 or fail "git show-ref failed (status $?)";
- printdebug "ref $refname= [show-ref exited 1]\n";
- return '';
- }
- if ($got =~ m/^(\w+) \Q$refname\E$/m) {
- printdebug "ref $refname=$1\n";
- return $1;
- } else {
- printdebug "ref $refname= [no match]\n";
- return '';
- }
-}
-
sub must_getcwd () {
my $d = getcwd();
defined $d or fail "getcwd failed: $!";
my $url = access_cfg('archive-query-url');
if ($url =~ m#^https://([-.0-9a-z]+)/#) {
my $host = $1;
- my $keys = access_cfg('archive-query-tls-key','RETURN-UNDEF');
+ my $keys = access_cfg('archive-query-tls-key','RETURN-UNDEF') //'';
foreach my $key (split /\:/, $keys) {
$key =~ s/\%HOST\%/$host/g;
if (!stat $key) {
fail "for $url: stat $key: $!" unless $!==ENOENT;
next;
}
- push @cmd, "--ca-certificate=$key", "--ca-directory=/dev/enoent";
+ fail "config requested specific TLS key but do not know".
+ " how to get curl to use exactly that EE key ($key)";
+# push @cmd, "--cacert", $key, "--capath", "/dev/enoent";
+# # Sadly the above line does not work because of changes
+# # to gnutls. The real fix for #790093 may involve
+# # new curl options.
last;
}
+ # Fixing #790093 properly will involve providing a value
+ # for this on clients.
+ my $kargs = access_cfg('archive-query-tls-curl-ca-args','RETURN-UNDEF');
+ push @cmd, split / /, $kargs if defined $kargs;
}
push @cmd, $url.$subpath;
return @cmd;
access_runeinfo("ssh-psql $runeinfo").
" export LC_MESSAGES=C; export LC_CTYPE=C;".
" ".shellquote qw(psql -A), $dbname, qw(-c), $sql);
- printcmd(\*DEBUG,$debugprefix."|",@cmd) if $debug>0;
+ debugcmd "|",@cmd;
open P, "-|", @cmd or die $!;
while (<P>) {
chomp or die;
" archive told us to expect $digest";
}
my $dscfh = new IO::File \$dscdata, '<' or die $!;
- printdebug Dumper($dscdata) if $debug>1;
+ printdebug Dumper($dscdata) if $debuglevel>1;
$dsc = parsecontrolfh($dscfh,$dscurl,1);
- printdebug Dumper($dsc) if $debug>1;
+ printdebug Dumper($dsc) if $debuglevel>1;
my $fmt = getfield $dsc, 'Format';
fail "unsupported source format $fmt, sorry" unless $format_ok{$fmt};
$dsc_checked = !!$digester;
}
}
-sub rev_parse ($) {
- return cmdoutput @git, qw(rev-parse), "$_[0]~0";
-}
-
-sub is_fast_fwd ($$) {
- my ($ancestor,$child) = @_;
- my @cmd = (@git, qw(merge-base), $ancestor, $child);
- my $mb = cmdoutput_errok @cmd;
- if (defined $mb) {
- return rev_parse($mb) eq rev_parse($ancestor);
- } else {
- $?==256 or failedcmd @cmd;
- return 0;
- }
-}
-
sub git_fetch_us () {
runcmd_ordryrun_local @git, qw(fetch),access_giturl(),fetchspec();
+ if (deliberately_not_fast_forward) {
+ runcmd_ordryrun_local @git, qw(fetch -p), access_giturl(),
+ map { "+refs/$_/*:".lrfetchrefs."/$_/*" }
+ qw(tags heads);
+ }
}
sub fetch_from_archive () {
sub check_not_dirty () {
return if $ignoredirty;
my @cmd = (@git, qw(diff --quiet HEAD));
- printcmd(\*DEBUG,$debugprefix."+",@cmd) if $debug>0;
+ debugcmd "+",@cmd;
$!=0; $?=0; system @cmd;
return if !$! && !$?;
if (!$! && $?==256) {
$package release $cversion for $clogsuite ($csuite) [dgit]
[dgit distro=$declaredistro$delibs]
END
- foreach my $ref (sort keys %supersedes) {
+ foreach my $ref (sort keys %previously) {
print TO <<END or die $!;
-[dgit supersede:$ref=$supersedes{$ref}]
+[dgit previously:$ref=$previously{$ref}]
END
}
}
}
-sub dopush () {
+sub dopush ($) {
+ my ($forceflag) = @_;
printdebug "actually entering push\n";
prep_ud();
$dscpath =~ m#^/# ? $dscpath : "../../../$dscpath";
my ($tree,$dir) = mktree_in_ud_from_only_subdir();
changedir '../../../..';
- my $diffopt = $debug>0 ? '--exit-code' : '--quiet';
+ my $diffopt = $debuglevel>0 ? '--exit-code' : '--quiet';
my @diffcmd = (@git, qw(diff), $diffopt, $tree);
- printcmd \*DEBUG,$debugprefix."+",@diffcmd;
+ debugcmd "+",@diffcmd;
$!=0; $?=0;
my $r = system @diffcmd;
if ($r) {
# runcmd @git, qw(fetch -p ), "$alioth_git/$package.git",
# map { lref($_).":".rref($_) }
# (uploadbranch());
- my $head = rev_parse('HEAD');
+ my $head = git_rev_parse('HEAD');
if (!$changesfile) {
my $multi = "$buildproductsdir/".
"${package}_".(stripepoch $cversion)."_multi.changes";
responder_send_command("param head $head");
responder_send_command("param csuite $csuite");
- my $forceflag = deliberately('not-fast-forward') ? '+' : '';
- if ($forceflag && defined $lastpush_hash) {
- git_for_each_tag_referring($lastpush_hash, sub {
- my ($objid,$fullrefname,$tagname) = @_;
- responder_send_command("supersedes $fullrefname=$objid");
- $supersedes{$fullrefname} = $objid;
+ if (deliberately_not_fast_forward) {
+ git_for_each_ref(lrfetchrefs, sub {
+ my ($objid,$objtype,$lrfetchrefname,$reftail) = @_;
+ my $rrefname= substr($lrfetchrefname, length(lrfetchrefs) + 1);
+ responder_send_command("previously $rrefname=$objid");
+ $previously{$rrefname} = $objid;
});
}
create_remote_git_repo();
}
runcmd_ordryrun @git, qw(push),access_giturl(),
- $forceflag."HEAD:".rrref(), "refs/tags/$tag";
+ $forceflag."HEAD:".rrref(), $forceflag."refs/tags/$tag";
runcmd_ordryrun @git, qw(update-ref -m), 'dgit push', lrref(), 'HEAD';
if ($we_are_responder) {
if (check_for_git()) {
git_fetch_us();
}
+ my $forceflag = '';
if (fetch_from_archive()) {
- is_fast_fwd(lrref(), 'HEAD') or
+ if (is_fast_fwd(lrref(), 'HEAD')) {
+ # ok
+ } elsif (deliberately_not_fast_forward) {
+ $forceflag = '+';
+ } else {
fail "dgit push: HEAD is not a descendant".
" of the archive's version.\n".
- "$us: To overwrite it, use git merge -s ours ".lrref().".";
+ "dgit: To overwrite its contents,".
+ " use git merge -s ours ".lrref().".\n".
+ "dgit: To rewind history, if permitted by the archive,".
+ " use --deliberately-not-fast-forward";
+ }
} else {
$new_package or
fail "package appears to be new in this suite;".
" if this is intentional, use --new";
}
- dopush();
+ dopush($forceflag);
}
#---------- remote commands' implementation ----------
# offered several)
$debugprefix = ' ';
$we_are_responder = 1;
+ $us .= " (build host)";
open PI, "<&STDIN" or die $!;
open STDIN, "/dev/null" or die $!;
push @rdgit, qw(remote-push-build-host), (scalar @rargs), @rargs;
push @rdgit, @ARGV;
my @cmd = (@ssh, $host, shellquote @rdgit);
- printcmd \*DEBUG,$debugprefix."+",@cmd;
+ debugcmd "+",@cmd;
if (defined $initiator_tempdir) {
rmtree $initiator_tempdir;
$i_param{$1} = $2;
}
-sub i_resp_supersedes ($) {
+sub i_resp_previously ($) {
$_[0] =~ m#^(refs/tags/\S+)=(\w+)$#
- or badproto \*RO, "bad supersedes spec";
+ or badproto \*RO, "bad previously spec";
my $r = system qw(git check-ref-format), $1;
- die "bad supersedes ref spec ($r)" if $r;
- $supersedes{$1} = $2;
+ die "bad previously ref spec ($r)" if $r;
+ $previously{$1} = $2;
}
our %i_wanted;
# 6. Back in the main tree, fast forward to the new HEAD
my $clogp = parsechangelog();
- my $headref = rev_parse('HEAD');
+ my $headref = git_rev_parse('HEAD');
prep_ud();
changedir $ud;
badusage "need only 1 subpath argument" unless @ARGV==1;
my ($subpath) = @ARGV;
my @cmd = archive_api_query_cmd($subpath);
+ debugcmd ">",@cmd;
exec @cmd or fail "exec curl: $!\n";
}
+sub cmd_clone_dgit_repos_server {
+ badusage "need destination argument" unless @ARGV==1;
+ my ($destdir) = @ARGV;
+ $package = '_dgit-repos-server';
+ my @cmd = (@git, qw(clone), access_giturl(), $destdir);
+ debugcmd ">",@cmd;
+ exec @cmd or fail "exec git clone: $!\n";
+}
+
#---------- argument parsing and main program ----------
sub cmd_version {
} elsif (m/^--no-rm-on-error$/s) {
push @ropts, $_;
$rmonerror = 0;
- } elsif (m/^--deliberately-($suite_re)$/s) {
+ } elsif (m/^--deliberately-($deliberately_re)$/s) {
push @ropts, $_;
push @deliberatelies, $&;
} else {
cmd_help();
} elsif (s/^-D/-/) {
push @ropts, $&;
- open DEBUG, ">&STDERR" or die $!;
- autoflush DEBUG 1;
- $debug++;
+ $debuglevel++;
+ enabledebug();
} elsif (s/^-N/-/) {
push @ropts, $&;
$new_package=1;
~ianmdlvl / dgit.git / blobdiff