X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=dgit;h=863104bfd709bb32e601772cc1976c3bcc3ad5a9;hp=843c7ec614f36289a3a06526e6a06c666852d598;hb=073ebedd6e45939fe879e1f8a74abf74181bbe40;hpb=0efc9955c6c355f5dd6e98c8097bd3938beb49d1 diff --git a/dgit b/dgit index 843c7ec6..863104bf 100755 --- a/dgit +++ b/dgit @@ -18,6 +18,7 @@ # along with this program. If not, see . use strict; +$SIG{__WARN__} = sub { die $_[0]; }; use IO::Handle; use Data::Dumper; @@ -29,9 +30,15 @@ use File::Basename; use Dpkg::Version; use POSIX; use IPC::Open2; +use Digest::SHA; +use Digest::MD5; + +use Debian::Dgit; our $our_version = 'UNRELEASED'; ###substituted### +our $rpushprotovsn = 2; + our $isuite = 'unstable'; our $idistro; our $package; @@ -43,11 +50,14 @@ our $changesfile; our $buildproductsdir = '..'; our $new_package = 0; our $ignoredirty = 0; -our $noquilt = 0; our $rmonerror = 1; +our @deliberatelies; +our %previously; our $existing_package = 'dpkg'; our $cleanmode = 'dpkg-source'; our $changes_since_version; +our $quilt_mode; +our $quilt_modes_re = 'linear|smash|auto|nofix|nocheck'; our $we_are_responder; our $initiator_tempdir; @@ -57,6 +67,7 @@ our $suite_re = '[-+.0-9a-z]+'; our (@git) = qw(git); our (@dget) = qw(dget); +our (@curl) = qw(curl -f); our (@dput) = qw(dput); our (@debsign) = qw(debsign); our (@gpg) = qw(gpg); @@ -69,7 +80,8 @@ our (@dpkggenchanges) = qw(dpkg-genchanges); our (@mergechanges) = qw(mergechanges -f); our (@changesopts) = (''); -our %opts_opt_map = ('dget' => \@dget, +our %opts_opt_map = ('dget' => \@dget, # accept for compatibility + 'curl' => \@curl, 'dput' => \@dput, 'debsign' => \@debsign, 'gpg' => \@gpg, @@ -86,26 +98,20 @@ our %opts_opt_cmdonly = ('gpg' => 1); our $keyid; -our $debug = 0; -open DEBUG, ">/dev/null" or die $!; - autoflush STDOUT 1; our $remotename = 'dgit'; our @ourdscfield = qw(Dgit Vcs-Dgit-Master); -our $branchprefix = 'dgit'; our $csuite; +our $instead_distro; sub lbranch () { return "$branchprefix/$csuite"; } my $lbranch_re = '^refs/heads/'.$branchprefix.'/([^/.]+)$'; sub lref () { return "refs/heads/".lbranch(); } -sub lrref () { return "refs/remotes/$remotename/$branchprefix/$csuite"; } -sub rrref () { return "refs/$branchprefix/$csuite"; } -sub debiantag ($) { - my ($v) = @_; - $v =~ y/~:/_%/; - return "debian/$v"; -} +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) = @_; @@ -113,13 +119,18 @@ sub stripepoch ($) { return $vsn; } +sub srcfn ($$) { + my ($vsn,$sfx) = @_; + return "${package}_".(stripepoch $vsn).$sfx +} + sub dscfn ($) { my ($vsn) = @_; - return "${package}_".(stripepoch $vsn).".dsc"; + return srcfn($vsn,".dsc"); } our $us = 'dgit'; -our $debugprefix = ''; +initdebug(''); our @end; END { @@ -130,12 +141,6 @@ END { } }; -sub printdebug { print DEBUG $debugprefix, @_ or die $!; } - -sub fail { - die $us.($we_are_responder ? " (build host)" : "").": @_\n"; -} - sub badcfg { print STDERR "$us: invalid configuration: @_\n"; exit 12; } sub no_such_package () { @@ -154,6 +159,17 @@ sub changedir ($) { chdir $newdir or die "chdir: $newdir: $!"; } +sub deliberately ($) { + my ($enquiry) = @_; + return !!grep { $_ eq "--deliberately-$enquiry" } @deliberatelies; +} + +sub deliberately_not_fast_forward () { + foreach (qw(not-fast-forward fresh-repo)) { + return 1 if deliberately($_) || deliberately("TEST-dgit-only-$_"); + } +} + #---------- remote protocol support, common ---------- # remote push initiator/responder protocol: @@ -191,17 +207,39 @@ sub changedir ($) { # # > complete +our $i_child_pid; + +sub i_child_report () { + # Sees if our child has died, and reap it if so. Returns a string + # describing how it died if it failed, or undef otherwise. + return undef unless $i_child_pid; + my $got = waitpid $i_child_pid, WNOHANG; + return undef if $got <= 0; + die unless $got == $i_child_pid; + $i_child_pid = undef; + return undef unless $?; + return "build host child ".waitstatusmsg(); +} + sub badproto ($$) { my ($fh, $m) = @_; fail "connection lost: $!" if $fh->error; fail "protocol violation; $m not expected"; } +sub badproto_badread ($$) { + my ($fh, $wh) = @_; + fail "connection lost: $!" if $!; + my $report = i_child_report(); + fail $report if defined $report; + badproto $fh, "eof (reading $wh)"; +} + sub protocol_expect (&$) { my ($match, $fh) = @_; local $_; $_ = <$fh>; - defined && chomp or badproto $fh, "eof"; + defined && chomp or badproto_badread $fh, "protocol message"; if (wantarray) { my @r = &$match; return @r if @r; @@ -233,7 +271,7 @@ sub protocol_read_bytes ($$) { $nbytes =~ m/^[1-9]\d{0,5}$/ or badproto \*RO, "bad byte count"; my $d; my $got = read $fh, $d, $nbytes; - $got==$nbytes or badproto $fh, "eof during data block"; + $got==$nbytes or badproto_badread $fh, "data block"; return $d; } @@ -315,49 +353,13 @@ sub url_get { my $r = $ua->get(@_) or die $!; return undef if $r->code == 404; $r->is_success or fail "failed to fetch $what: ".$r->status_line; - return $r->decoded_content(); + return $r->decoded_content(charset => 'none'); } -our ($dscdata,$dscurl,$dsc,$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: $!"; - } elsif (!($? & 0xff)) { - fail "subprocess failed with error exit status ".($?>>8); - } elsif ($?) { - fail "subprocess crashed (wait status $?)"; - } else { - fail "subprocess produced invalid output"; - } -} +our ($dscdata,$dscurl,$dsc,$dsc_checked,$skew_warning_vsn); sub runcmd { - printcmd(\*DEBUG,$debugprefix."+",@_) if $debug>0; + debugcmd "+",@_; $!=0; $?=0; failedcmd @_ if system @_; } @@ -373,27 +375,6 @@ sub printdone { } } -sub cmdoutput_errok { - die Dumper(\@_)." ?" if grep { !defined } @_; - printcmd(\*DEBUG,$debugprefix."|",@_) if $debug>0; - open P, "-|", @_ or die $!; - my $d; - $!=0; $?=0; - { local $/ = undef; $d =

; } - 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."#",@_); } @@ -460,17 +441,29 @@ our %defcfg = ('dgit.default.distro' => 'debian', 'dgit.default.username' => '', 'dgit.default.archive-query-default-component' => 'main', 'dgit.default.ssh' => 'ssh', - 'dgit-distro.debian.git-host' => 'git.debian.org', + 'dgit.default.archive-query' => 'madison:', + 'dgit.default.sshpsql-dbname' => 'service=projectb', + 'dgit-distro.debian.archive-query' => 'ftpmasterapi:', + 'dgit-distro.debian.git-host' => 'dgit-git.debian.net', + 'dgit-distro.debian.git-user-force' => 'dgit', 'dgit-distro.debian.git-proto' => 'git+ssh://', - 'dgit-distro.debian.git-path' => '/git/dgit-repos/repos', + 'dgit-distro.debian.git-path' => '/dgit/debian/repos', 'dgit-distro.debian.git-check' => 'ssh-cmd', - 'dgit-distro.debian.git-create' => 'ssh-cmd', - 'dgit-distro.debian.sshpsql-host' => 'coccia.debian.org', - 'dgit-distro.debian.sshpsql-dbname' => 'service=projectb', + '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.diverts.alioth' => '/alioth', + 'dgit-distro.debian/alioth.git-host' => 'git.debian.org', + 'dgit-distro.debian/alioth.git-user-force' => '', + 'dgit-distro.debian/alioth.git-proto' => 'git+ssh://', + 'dgit-distro.debian/alioth.git-path' => '/git/dgit-repos/repos', + 'dgit-distro.debian/alioth.git-create' => 'ssh-cmd', 'dgit-distro.debian.upload-host' => 'ftp-master', # for dput 'dgit-distro.debian.mirror' => 'http://ftp.debian.org/debian/', 'dgit-distro.debian.backports-quirk' => '(squeeze)-backports*', 'dgit-distro.debian-backports.mirror' => 'http://backports.debian.org/debian-backports/', + 'dgit-distro.ubuntu.git-check' => 'false', + 'dgit-distro.ubuntu.mirror' => 'http://archive.ubuntu.com/ubuntu', 'dgit-distro.test-dummy.ssh' => "$td/ssh", 'dgit-distro.test-dummy.username' => "alice", 'dgit-distro.test-dummy.git-check' => "ssh-cmd", @@ -478,7 +471,8 @@ our %defcfg = ('dgit.default.distro' => 'debian', 'dgit-distro.test-dummy.git-url' => "$td/git", 'dgit-distro.test-dummy.git-host' => "git", 'dgit-distro.test-dummy.git-path' => "$td/git", - 'dgit-distro.test-dummy.archive-query' => "dummycat:$td/aq", + 'dgit-distro.test-dummy.archive-query' => "ftpmasterapi:", + 'dgit-distro.test-dummy.archive-query-url' => "file://$td/aq/", 'dgit-distro.test-dummy.mirror' => "file://$td/mirror/", 'dgit-distro.test-dummy.upload-host' => 'test-dummy', ); @@ -489,7 +483,7 @@ sub cfg { my @cmd = (@git, qw(config --), $c); my $v; { - local ($debug) = $debug-1; + local ($debuglevel) = $debuglevel-2; $v = cmdoutput_errok @cmd; }; if ($?==0) { @@ -500,16 +494,21 @@ sub cfg { my $dv = $defcfg{$c}; return $dv if defined $dv; } - badcfg "need value for one of: @_"; + badcfg "need value for one of: @_\n". + "$us: distro or suite appears not to be (properly) supported"; } sub access_basedistro () { - return cfg("dgit-suite.$isuite.distro", - "dgit.default.distro"); + if (defined $idistro) { + return $idistro; + } else { + return cfg("dgit-suite.$isuite.distro", + "dgit.default.distro"); + } } sub access_quirk () { - # returns (quirk name, distro to use instead, quirk-specific info) + # returns (quirk name, distro to use instead or undef, quirk-specific info) my $basedistro = access_basedistro(); my $backports_quirk = cfg("dgit-distro.$basedistro.backports-quirk", 'RETURN-UNDEF'); @@ -523,22 +522,53 @@ sub access_quirk () { return ('backports',"$basedistro-backports",$1); } } - return ('none',$basedistro); + return ('none',undef); } -sub access_distro () { - return (access_quirk())[1]; +sub access_distros () { + # Returns list of distros to try, in order + # + # We want to try: + # 0. `instead of' distro name(s) we have been pointed to + # 1. the access_quirk distro, if any + # 2a. the user's specified distro, or failing that } basedistro + # 2b. the distro calculated from the suite } + my @l = access_basedistro(); + + my (undef,$quirkdistro) = access_quirk(); + unshift @l, $quirkdistro; + unshift @l, $instead_distro; + return grep { defined } @l; } sub access_cfg (@) { my (@keys) = @_; - my $basedistro = access_basedistro(); - my $distro = $idistro || access_distro(); - my $value = cfg(map { - ("dgit-distro.$distro.$_", - "dgit-distro.$basedistro.$_", - "dgit.default.$_") - } @keys); + my @cfgs; + # The nesting of these loops determines the search order. We put + # the key loop on the outside so that we search all the distros + # for each key, before going on to the next key. That means that + # if access_cfg is called with a more specific, and then a less + # specific, key, an earlier distro can override the less specific + # without necessarily overriding any more specific keys. (If the + # distro wants to override the more specific keys it can simply do + # so; whereas if we did the loop the other way around, it would be + # impossible to for an earlier distro to override a less specific + # key but not the more specific ones without restating the unknown + # values of the more specific keys. + my @realkeys; + my @rundef; + # We have to deal with RETURN-UNDEF specially, so that we don't + # terminate the search prematurely. + foreach (@keys) { + if (m/RETURN-UNDEF/) { push @rundef, $_; last; } + push @realkeys, $_ + } + foreach my $d (access_distros()) { + push @cfgs, map { "dgit-distro.$d.$_" } @realkeys; + } + push @cfgs, map { "dgit.default.$_" } @realkeys; + push @cfgs, @rundef; + my $value = cfg(@cfgs); return $value; } @@ -560,9 +590,16 @@ sub access_cfg_ssh () { } } +sub access_runeinfo ($) { + my ($info) = @_; + return ": dgit ".access_basedistro()." $info ;"; +} + sub access_someuserhost ($) { my ($some) = @_; - my $user = access_cfg("$some-user",'username'); + my $user = access_cfg("$some-user-force", 'RETURN-UNDEF'); + defined($user) && length($user) or + $user = access_cfg("$some-user",'username'); my $host = access_cfg("$some-host"); return length($user) ? "$user\@$host" : $host; } @@ -571,22 +608,43 @@ sub access_gituserhost () { return access_someuserhost('git'); } -sub access_giturl () { +sub access_giturl (;$) { + my ($optional) = @_; my $url = access_cfg('git-url','RETURN-UNDEF'); if (!defined $url) { + my $proto = access_cfg('git-proto', 'RETURN-UNDEF'); + return undef unless defined $proto; $url = - access_cfg('git-proto'). + $proto. access_gituserhost(). access_cfg('git-path'); } return "$url/$package.git"; } -sub parsecontrolfh ($$@) { - my ($fh, $desc, @opts) = @_; - my %opts = ('name' => $desc, @opts); - my $c = Dpkg::Control::Hash->new(%opts); - $c->parse($fh) or die "parsing of $desc failed"; +sub parsecontrolfh ($$;$) { + my ($fh, $desc, $allowsigned) = @_; + our $dpkgcontrolhash_noissigned; + my $c; + for (;;) { + my %opts = ('name' => $desc); + $opts{allow_pgp}= $allowsigned || !$dpkgcontrolhash_noissigned; + $c = Dpkg::Control::Hash->new(%opts); + $c->parse($fh,$desc) or die "parsing of $desc failed"; + last if $allowsigned; + last if $dpkgcontrolhash_noissigned; + my $issigned= $c->get_option('is_pgp_signed'); + if (!defined $issigned) { + $dpkgcontrolhash_noissigned= 1; + seek $fh, 0,0 or die "seek $desc: $!"; + } elsif ($issigned) { + fail "control file $desc is (already) PGP-signed. ". + " Note that dgit push needs to modify the .dsc and then". + " do the signature itself"; + } else { + last; + } + } return $c; } @@ -617,23 +675,6 @@ sub parsechangelog { 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: $!"; @@ -645,16 +686,6 @@ our %rmad; sub archive_query ($) { my ($method) = @_; my $query = access_cfg('archive-query','RETURN-UNDEF'); - if (!defined $query) { - my $distro = access_basedistro(); - if ($distro eq 'debian') { - $query = "sshpsql:". - access_someuserhost('sshpsql').':'. - access_cfg('sshpsql-dbname'); - } else { - $query = "madison:$distro"; - } - } $query =~ s/^(\w+):// or badcfg "invalid archive-query method \`$query'"; my $proto = $1; my $data = $'; #'; @@ -667,17 +698,107 @@ sub pool_dsc_subpath ($$) { return "/pool/$component/$prefix/$package/".dscfn($vsn); } -sub archive_query_madison ($$) { +#---------- `ftpmasterapi' archive query method (nascent) ---------- + +sub archive_api_query_cmd ($) { + my ($subpath) = @_; + my @cmd = qw(curl -sS); + 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'); + 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"; + last; + } + } + push @cmd, $url.$subpath; + return @cmd; +} + +sub api_query ($$) { + use JSON; + my ($data, $subpath) = @_; + badcfg "ftpmasterapi archive query method takes no data part" + if length $data; + my @cmd = archive_api_query_cmd($subpath); + my $json = cmdoutput @cmd; + return decode_json($json); +} + +sub canonicalise_suite_ftpmasterapi () { + my ($proto,$data) = @_; + my $suites = api_query($data, 'suites'); + my @matched; + foreach my $entry (@$suites) { + next unless grep { + my $v = $entry->{$_}; + defined $v && $v eq $isuite; + } qw(codename name); + push @matched, $entry; + } + fail "unknown suite $isuite" unless @matched; + my $cn; + eval { + @matched==1 or die "multiple matches for suite $isuite\n"; + $cn = "$matched[0]{codename}"; + defined $cn or die "suite $isuite info has no codename\n"; + $cn =~ m/^$suite_re$/ or die "suite $isuite maps to bad codename\n"; + }; + die "bad ftpmaster api response: $@\n".Dumper(\@matched) + if length $@; + return $cn; +} + +sub archive_query_ftpmasterapi () { + my ($proto,$data) = @_; + my $info = api_query($data, "dsc_in_suite/$isuite/$package"); + my @rows; + my $digester = Digest::SHA->new(256); + foreach my $entry (@$info) { + eval { + my $vsn = "$entry->{version}"; + my ($ok,$msg) = version_check $vsn; + die "bad version: $msg\n" unless $ok; + my $component = "$entry->{component}"; + $component =~ m/^$component_re$/ or die "bad component"; + my $filename = "$entry->{filename}"; + $filename && $filename !~ m#[^-+:._~0-9a-zA-Z/]|^[/.]|/[/.]# + or die "bad filename"; + my $sha256sum = "$entry->{sha256sum}"; + $sha256sum =~ m/^[0-9a-f]+$/ or die "bad sha256sum"; + push @rows, [ $vsn, "/pool/$component/$filename", + $digester, $sha256sum ]; + }; + die "bad ftpmaster api response: $@\n".Dumper($entry) + if length $@; + } + @rows = sort { -version_compare($a->[0],$b->[0]) } @rows; + return @rows; +} + +#---------- `madison' archive query method ---------- + +sub archive_query_madison { + return map { [ @$_[0..1] ] } madison_get_parse(@_); +} + +sub madison_get_parse { my ($proto,$data) = @_; die unless $proto eq 'madison'; - $rmad{$package} ||= cmdoutput + if (!length $data) { + $data= access_cfg('madison-distro','RETURN-UNDEF'); + $data //= access_basedistro(); + } + $rmad{$proto,$data,$package} ||= cmdoutput qw(rmadison -asource),"-s$isuite","-u$data",$package; - my $rmad = $rmad{$package}; - return madison_parse($rmad); -} + my $rmad = $rmad{$proto,$data,$package}; -sub madison_parse ($) { - my ($rmad) = @_; my @out; foreach my $l (split /\n/, $rmad) { $l =~ m{^ \s*( [^ \t|]+ )\s* \| @@ -696,12 +817,12 @@ sub madison_parse ($) { $5 eq 'source' or die "$rmad ?"; push @out, [$vsn,pool_dsc_subpath($vsn,$component),$newsuite]; } - return sort { -version_compare_string($a->[0],$b->[0]); } @out; + return sort { -version_compare($a->[0],$b->[0]); } @out; } -sub canonicalise_suite_madison ($$) { +sub canonicalise_suite_madison { # madison canonicalises for us - my @r = archive_query_madison($_[0],$_[1]); + my @r = madison_get_parse(@_); @r or fail "unable to canonicalise suite using package $package". " which does not appear to exist in suite $isuite;". @@ -709,14 +830,22 @@ sub canonicalise_suite_madison ($$) { return $r[0][2]; } -sub sshpsql ($$) { - my ($data,$sql) = @_; +#---------- `sshpsql' archive query method ---------- + +sub sshpsql ($$$) { + my ($data,$runeinfo,$sql) = @_; + if (!length $data) { + $data= access_someuserhost('sshpsql').':'. + access_cfg('sshpsql-dbname'); + } $data =~ m/:/ or badcfg "invalid sshpsql method string \`$data'"; my ($userhost,$dbname) = ($`,$'); #'; my @rows; my @cmd = (access_cfg_ssh, $userhost, - "export LANG=C; ".shellquote qw(psql -A), $dbname, qw(-c), $sql); - printcmd(\*DEBUG,$debugprefix."|",@cmd) if $debug>0; + access_runeinfo("ssh-psql $runeinfo"). + " export LC_MESSAGES=C; export LC_CTYPE=C;". + " ".shellquote qw(psql -A), $dbname, qw(-c), $sql); + debugcmd "|",@cmd; open P, "-|", @cmd or die $!; while (

) { chomp or die; @@ -735,14 +864,14 @@ sub sshpsql ($$) { } sub sql_injection_check { - foreach (@_) { die "$_ $& ?" if m/[']/; } + foreach (@_) { die "$_ $& ?" if m{[^-+=:_.,/0-9a-zA-Z]}; } } sub archive_query_sshpsql ($$) { my ($proto,$data) = @_; sql_injection_check $isuite, $package; - my @rows = sshpsql($data, <[0],$b->[0]) } @rows; + @rows = sort { -version_compare($a->[0],$b->[0]) } @rows; + my $digester = Digest::SHA->new(256); @rows = map { - my ($vsn,$component,$filename) = @$_; - [ $vsn, "/pool/$component/$filename" ]; + my ($vsn,$component,$filename,$sha256sum) = @$_; + [ $vsn, "/pool/$component/$filename",$digester,$sha256sum ]; } @rows; return @rows; } @@ -765,7 +895,7 @@ END sub canonicalise_suite_sshpsql ($$) { my ($proto,$data) = @_; sql_injection_check $isuite; - my @rows = sshpsql($data, <error and die "$dpath: $!"; close C; - return sort { -version_compare_string($a->[0],$b->[0]); } @rows; + return sort { -version_compare($a->[0],$b->[0]); } @rows; } +#---------- archive query entrypoints and rest of program ---------- + sub canonicalise_suite () { return if defined $csuite; fail "cannot operate on $isuite suite" if $isuite eq 'UNRELEASED'; @@ -827,37 +961,58 @@ sub get_archive_dsc () { canonicalise_suite(); my @vsns = archive_query('archive_query'); foreach my $vinfo (@vsns) { - my ($vsn,$subpath) = @$vinfo; + my ($vsn,$subpath,$digester,$digest) = @$vinfo; $dscurl = access_cfg('mirror').$subpath; $dscdata = url_get($dscurl); if (!$dscdata) { $skew_warning_vsn = $vsn if !defined $skew_warning_vsn; next; } + if ($digester) { + $digester->reset(); + $digester->add($dscdata); + my $got = $digester->hexdigest(); + $got eq $digest or + fail "$dscurl has hash $got but". + " archive told us to expect $digest"; + } my $dscfh = new IO::File \$dscdata, '<' or die $!; - printdebug Dumper($dscdata) if $debug>1; - $dsc = parsecontrolfh($dscfh,$dscurl, allow_pgp=>1); - printdebug Dumper($dsc) if $debug>1; + printdebug Dumper($dscdata) if $debuglevel>1; + $dsc = parsecontrolfh($dscfh,$dscurl,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; return; } $dsc = undef; } +sub check_for_git (); sub check_for_git () { # returns 0 or 1 my $how = access_cfg('git-check'); if ($how eq 'ssh-cmd') { my @cmd = (access_cfg_ssh, access_gituserhost(), + access_runeinfo("git-check $package"). " set -e; cd ".access_cfg('git-path').";". " if test -d $package.git; then echo 1; else echo 0; fi"); my $r= cmdoutput @cmd; + if ($r =~ m/^divert (\w+)$/) { + my $divert=$1; + my ($usedistro,) = access_distros(); + $instead_distro= cfg("dgit-distro.$usedistro.diverts.$divert"); + $instead_distro =~ s{^/}{ access_basedistro()."/" }e; + printdebug "diverting $divert so using distro $instead_distro\n"; + return check_for_git(); + } failedcmd @cmd unless $r =~ m/^[01]$/; return $r+0; } elsif ($how eq 'true') { return 1; + } elsif ($how eq 'false') { + return 0; } else { badcfg "unknown git-check \`$how'"; } @@ -868,6 +1023,7 @@ sub create_remote_git_repo () { if ($how eq 'ssh-cmd') { runcmd_ordryrun (access_cfg_ssh, access_gituserhost(), + access_runeinfo("git-create $package"). "set -e; cd ".access_cfg('git-path').";". " cp -a _template $package.git"); } elsif ($how eq 'true') { @@ -887,6 +1043,18 @@ sub prep_ud () { mkdir $ud or die $!; } +sub mktree_in_ud_here () { + runcmd qw(git init -q); + rmtree('.git/objects'); + symlink '../../../../objects','.git/objects' or die $!; +} + +sub git_write_tree () { + my $tree = cmdoutput @git, qw(write-tree); + $tree =~ m/^\w+$/ or die "$tree ?"; + return $tree; +} + sub mktree_in_ud_from_only_subdir () { # changes into the subdir my (@dirs) = <*/.>; @@ -894,14 +1062,14 @@ sub mktree_in_ud_from_only_subdir () { $dirs[0] =~ m#^([^/]+)/\.$# or die; my $dir = $1; changedir $dir; - fail "source package contains .git directory" if stat '.git'; - die $! unless $!==&ENOENT; - runcmd qw(git init -q); - rmtree('.git/objects'); - symlink '../../../../objects','.git/objects' or die $!; + fail "source package contains .git directory" if stat_exists '.git'; + mktree_in_ud_here(); + my $format=get_source_format(); + if (madformat($format)) { + rmtree '.pc'; + } runcmd @git, qw(add -Af); - my $tree = cmdoutput @git, qw(write-tree); - $tree =~ m/^\w+$/ or die "$tree ?"; + my $tree=git_write_tree(); return ($tree,$dir); } @@ -936,9 +1104,12 @@ sub dsc_files () { map { $_->{Filename} } dsc_files_info(); } -sub is_orig_file ($) { - local ($_) = @_; - m/\.orig(?:-\w+)?\.tar\.\w+$/; +sub is_orig_file ($;$) { + local ($_) = $_[0]; + my $base = $_[1]; + m/\.orig(?:-\w+)?\.tar\.\w+$/ or return 0; + defined $base or return 1; + return $` eq $base; } sub make_commit ($) { @@ -961,20 +1132,34 @@ sub clogp_authline ($) { sub generate_commit_from_dsc () { prep_ud(); changedir $ud; - my @files; - foreach my $f (dsc_files()) { + + foreach my $fi (dsc_files_info()) { + my $f = $fi->{Filename}; die "$f ?" if $f =~ m#/|^\.|\.dsc$|\.tmp$#; - push @files, $f; + link "../../../$f", $f or $!==&ENOENT or die "$f $!"; + + complete_file_from_dsc('.', $fi); + + if (is_orig_file($f)) { + link $f, "../../../../$f" + or $!==&EEXIST + or die "$f $!"; + } } - runcmd @dget, qw(--), $dscurl; - foreach my $f (grep { is_orig_file($_) } @files) { - link $f, "../../../../$f" - or $!==&EEXIST - or die "$f $!"; - } + + my $dscfn = "$package.dsc"; + + open D, ">", $dscfn or die "$dscfn: $!"; + print D $dscdata or die "$dscfn: $!"; + close D or die "$dscfn: $!"; + my @cmd = qw(dpkg-source); + push @cmd, '--no-check' if $dsc_checked; + push @cmd, qw(-x --), $dscfn; + runcmd @cmd; + my ($tree,$dir) = mktree_in_ud_from_only_subdir(); runcmd qw(sh -ec), 'dpkg-parsechangelog >../changelog.tmp'; my $clogp = parsecontrol('../changelog.tmp',"commit's changelog"); @@ -1000,7 +1185,7 @@ END my $oldclogp = parsecontrol('../changelogold.tmp','previous changelog'); my $oversion = getfield $oldclogp, 'Version'; my $vcmp = - version_compare_string($oversion, $cversion); + version_compare($oversion, $cversion); if ($vcmp < 0) { # git upload/ is earlier vsn than archive, use archive open C, ">../commit2.tmp" or die $!; @@ -1035,51 +1220,55 @@ END return $outputhash; } -sub ensure_we_have_orig () { - foreach my $fi (dsc_files_info()) { - my $f = $fi->{Filename}; - next unless is_orig_file($f); - if (open F, "<", "../$f") { - $fi->{Digester}->reset(); - $fi->{Digester}->addfile(*F); - F->error and die $!; - my $got = $fi->{Digester}->hexdigest(); - $got eq $fi->{Hash} or - fail "existing file $f has hash $got but .dsc". - " demands hash $fi->{Hash}". - " (perhaps you should delete this file?)"; - progress "using existing $f"; - next; - } else { - die "$f $!" unless $!==&ENOENT; - } - my $origurl = $dscurl; - $origurl =~ s{/[^/]+$}{}; - $origurl .= "/$f"; +sub complete_file_from_dsc ($$) { + our ($dstdir, $fi) = @_; + # Ensures that we have, in $dir, the file $fi, with the correct + # contents. (Downloading it from alongside $dscurl if necessary.) + + my $f = $fi->{Filename}; + my $tf = "$dstdir/$f"; + my $downloaded = 0; + + if (stat_exists $tf) { + progress "using existing $f"; + } else { + my $furl = $dscurl; + $furl =~ s{/[^/]+$}{}; + $furl .= "/$f"; die "$f ?" unless $f =~ m/^${package}_/; die "$f ?" if $f =~ m#/#; - runcmd_ordryrun_local shell_cmd 'cd ..', @dget,'--',$origurl; + runcmd_ordryrun_local @curl,qw(-o),$tf,'--',"$furl"; + next if !act_local(); + $downloaded = 1; } -} -sub rev_parse ($) { - return cmdoutput @git, qw(rev-parse), "$_[0]~0"; + open F, "<", "$tf" or die "$tf: $!"; + $fi->{Digester}->reset(); + $fi->{Digester}->addfile(*F); + F->error and die $!; + my $got = $fi->{Digester}->hexdigest(); + $got eq $fi->{Hash} or + fail "file $f has hash $got but .dsc". + " demands hash $fi->{Hash} ". + ($downloaded ? "(got wrong file from archive!)" + : "(perhaps you should delete this file?)"); } -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 ensure_we_have_orig () { + foreach my $fi (dsc_files_info()) { + my $f = $fi->{Filename}; + next unless is_orig_file($f); + complete_file_from_dsc('..', $fi); } } 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 () { @@ -1124,8 +1313,8 @@ $later_warning_msg END $hash = $lastpush_hash; } else { - fail "archive's .dsc refers to ".$dsc_hash. - " but this is an ancestor of ".$lastpush_hash; + fail "git head (".lrref()."=$lastpush_hash) is not a ". + "descendant of archive's .dsc hash ($dsc_hash)"; } } elsif ($dsc) { $hash = generate_commit_from_dsc(); @@ -1165,7 +1354,7 @@ END my $gotclogp = parsechangelog("-l$clogf"); my $got_vsn = getfield $gotclogp, 'Version'; printdebug "SKEW CHECK GOT $got_vsn\n"; - if (version_compare_string($got_vsn, $skew_warning_vsn) < 0) { + if (version_compare($got_vsn, $skew_warning_vsn) < 0) { print STDERR < .git/HEAD" or die $!; - print H "ref: ".lref()."\n" or die $!; - close H or die $!; - runcmd @git, qw(remote add), 'origin', access_giturl(); - if (check_for_git()) { + my $giturl = access_giturl(1); + if (defined $giturl) { + runcmd @git, qw(config), "remote.$remotename.fetch", fetchspec(); + open H, "> .git/HEAD" or die $!; + print H "ref: ".lref()."\n" or die $!; + close H or die $!; + runcmd @git, qw(remote add), 'origin', $giturl; + } + if ($hasgit) { progress "fetching existing git history"; git_fetch_us(); runcmd_ordryrun_local @git, qw(fetch origin); @@ -1206,6 +1399,11 @@ sub clone ($) { progress "starting new git history"; } fetch_from_archive() or no_such_package; + my $vcsgiturl = $dsc->{'Vcs-Git'}; + if (length $vcsgiturl) { + $vcsgiturl =~ s/\s+-b\s+\S+//g; + runcmd @git, qw(remote add vcs-git), $vcsgiturl; + } runcmd @git, qw(reset --hard), lrref(); printdone "ready for work in $dstdir"; } @@ -1228,7 +1426,7 @@ sub pull () { 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) { @@ -1238,6 +1436,12 @@ sub check_not_dirty () { } } +sub commit_admin ($) { + my ($m) = @_; + progress "$m"; + runcmd_ordryrun_local @git, qw(commit -m), $m; +} + sub commit_quilty_patch () { my $output = cmdoutput @git, qw(status --porcelain); my %adds; @@ -1247,24 +1451,34 @@ sub commit_quilty_patch () { $adds{$1}++; } } + delete $adds{'.pc'}; # if there wasn't one before, don't add it if (!%adds) { progress "nothing quilty to commit, ok."; return; } runcmd_ordryrun_local @git, qw(add), sort keys %adds; - my $m = "Commit Debian 3.0 (quilt) metadata"; - progress "$m"; - runcmd_ordryrun_local @git, qw(commit -m), $m; + commit_admin "Commit Debian 3.0 (quilt) metadata"; +} + +sub get_source_format () { + if (!open F, "debian/source/format") { + die $! unless $!==&ENOENT; + return ''; + } + $_ = ; + F->error and die $!; + chomp; + return $_; } sub madformat ($) { my ($format) = @_; return 0 unless $format eq '3.0 (quilt)'; - progress "Format \`$format', urgh"; - if ($noquilt) { + if ($quilt_mode eq 'nocheck') { progress "Not doing any fixup of \`$format' due to --no-quilt-fixup"; return 0; } + progress "Format \`$format', checking/updating patch stack"; return 1; } @@ -1316,6 +1530,8 @@ sub push_mktag ($$$$$$$) { # We make the git tag by hand because (a) that makes it easier # to control the "tagger" (b) we can do remote signing my $authline = clogp_authline $clogp; + my $delibs = join(" ", "",@deliberatelies); + my $declaredistro = access_basedistro(); open TO, '>', $tfn->('.tmp') or die $!; print TO <('.tmp'); @@ -1358,10 +1581,13 @@ sub sign_changes ($) { } } -sub dopush () { +sub dopush ($) { + my ($forceflag) = @_; printdebug "actually entering push\n"; prep_ud(); + access_giturl(); # check that success is vaguely likely + my $clogpfn = ".git/dgit/changelog.822.tmp"; runcmd shell_cmd "exec >$clogpfn", qw(dpkg-parsechangelog); @@ -1371,7 +1597,7 @@ sub dopush () { push_parse_changelog("$clogpfn"); my $dscpath = "$buildproductsdir/$dscfn"; - stat $dscpath or + stat_exists $dscpath or fail "looked for .dsc $dscfn, but $!;". " maybe you forgot to build"; @@ -1391,9 +1617,9 @@ sub dopush () { $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) { @@ -1412,14 +1638,13 @@ sub dopush () { # 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"; - if (stat "$multi") { + if (stat_exists "$multi") { $changesfile = $multi; } else { - $!==&ENOENT or die "$multi: $!"; my $pat = "${package}_".(stripepoch $cversion)."_*.changes"; my @cs = glob "$buildproductsdir/$pat"; fail "failed to find unique changes file". @@ -1436,6 +1661,15 @@ sub dopush () { responder_send_command("param head $head"); responder_send_command("param csuite $csuite"); + 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; + }); + } + my $tfn = sub { ".git/dgit/tag$_[0]"; }; my $tagobjfn; @@ -1459,7 +1693,7 @@ sub dopush () { create_remote_git_repo(); } runcmd_ordryrun @git, qw(push),access_giturl(), - "HEAD:".rrref(), "refs/tags/$tag"; + $forceflag."HEAD:".rrref(), "refs/tags/$tag"; runcmd_ordryrun @git, qw(update-ref -m), 'dgit push', lrref(), 'HEAD'; if ($we_are_responder) { @@ -1502,6 +1736,10 @@ sub cmd_clone { } $dstdir ||= "$package"; + if (stat_exists $dstdir) { + fail "$dstdir already exists"; + } + my $cwd_remove; if ($rmonerror && !$dryrun_level) { $cwd_remove= getcwd(); @@ -1588,29 +1826,42 @@ sub cmd_push { 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 ---------- -sub cmd_remote_push_responder { +sub cmd_remote_push_build_host { my ($nrargs) = shift @ARGV; my (@rargs) = @ARGV[0..$nrargs-1]; @ARGV = @ARGV[$nrargs..$#ARGV]; die unless @rargs; - my ($dir) = @rargs; + my ($dir,$vsnwant) = @rargs; + # vsnwant is a comma-separated list; we report which we have + # chosen in our ready response (so other end can tell if they + # offered several) $debugprefix = ' '; $we_are_responder = 1; + $us .= " (build host)"; open PI, "<&STDIN" or die $!; open STDIN, "/dev/null" or die $!; @@ -1619,19 +1870,30 @@ sub cmd_remote_push_responder { open STDOUT, ">&STDERR" or die $!; autoflush STDOUT 1; - responder_send_command("dgit-remote-push-ready"); + $vsnwant //= 1; + fail "build host has dgit rpush protocol version". + " $rpushprotovsn but invocation host has $vsnwant" + unless grep { $rpushprotovsn eq $_ } split /,/, $vsnwant; + + responder_send_command("dgit-remote-push-ready $rpushprotovsn"); changedir $dir; &cmd_push; } +sub cmd_remote_push_responder { cmd_remote_push_build_host(); } +# ... for compatibility with proto vsn.1 dgit (just so that user gets +# a good error message) + our $i_tmp; -our $i_child_pid; sub i_cleanup { - local ($@); - if ($i_child_pid) { - printdebug "(killing remote child $i_child_pid)\n"; + local ($@, $?); + my $report = i_child_report(); + if (defined $report) { + printdebug "($report)\n"; + } elsif ($i_child_pid) { + printdebug "(killing build host child $i_child_pid)\n"; kill 15, $i_child_pid; } if (defined $i_tmp && !defined $initiator_tempdir) { @@ -1658,14 +1920,14 @@ sub cmd_rpush { $dir = nextarg; } $dir =~ s{^-}{./-}; - my @rargs = ($dir); + my @rargs = ($dir,$rpushprotovsn); my @rdgit; push @rdgit, @dgit; push @rdgit, @ropts; - push @rdgit, qw(remote-push-responder), (scalar @rargs), @rargs; + 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; @@ -1695,10 +1957,10 @@ sub i_resp_progress ($) { sub i_resp_complete { my $pid = $i_child_pid; $i_child_pid = undef; # prevents killing some other process with same pid - printdebug "waiting for remote child $pid...\n"; + printdebug "waiting for build host child $pid...\n"; my $got = waitpid $pid, 0; die $! unless $got == $pid; - die "remote child failed $?" if $?; + die "build host child failed $?" if $?; i_cleanup(); printdebug "all done\n"; @@ -1709,7 +1971,8 @@ sub i_resp_file ($) { my ($keyword) = @_; my $localname = i_method "i_localname", $keyword; my $localpath = "$i_tmp/$localname"; - stat $localpath and badproto \*RO, "file $keyword ($localpath) twice"; + stat_exists $localpath and + badproto \*RO, "file $keyword ($localpath) twice"; protocol_receive_file \*RO, $localpath; i_method "i_file", $keyword; } @@ -1721,6 +1984,14 @@ sub i_resp_param ($) { $i_param{$1} = $2; } +sub i_resp_previously ($) { + $_[0] =~ m#^(refs/tags/\S+)=(\w+)$# + or badproto \*RO, "bad previously spec"; + my $r = system qw(git check-ref-format), $1; + die "bad previously ref spec ($r)" if $r; + $previously{$1} = $2; +} + our %i_wanted; sub i_resp_want ($) { @@ -1792,59 +2063,395 @@ our $version; our $sourcechanges; our $dscfn; +#----- `3.0 (quilt)' handling ----- + our $fakeeditorenv = 'DGIT_FAKE_EDITOR_QUILT'; -sub build_maybe_quilt_fixup () { - if (!open F, "debian/source/format") { - die $! unless $!==&ENOENT; - return; - } - $_ = ; - F->error and die $!; - chomp; - return unless madformat($_); - # sigh - - my @cmd = (@git, qw(ls-files --exclude-standard -iodm)); - my $problems = cmdoutput @cmd; - if (length $problems) { - print STDERR "problematic files:\n"; - print STDERR " $_\n" foreach split /\n/, $problems; - fail "Cannot do quilt fixup in tree containing ignored files. ". - "Perhaps your package's clean target is broken, in which". - " case -wg (which says to use git-clean -xdf) may help."; - } +sub quiltify_dpkg_commit ($$$;$) { + my ($patchname,$author,$msg, $xinfo) = @_; + $xinfo //= ''; - my $clogp = parsechangelog(); - my $version = getfield $clogp, 'Version'; - my $author = getfield $clogp, 'Maintainer'; - my $headref = rev_parse('HEAD'); - my $time = time; - my $ncommits = 3; - my $patchname = "auto-$version-$headref-$time"; - my $msg = cmdoutput @git, qw(log), "-n$ncommits"; mkpath '.git/dgit'; my $descfn = ".git/dgit/quilt-description.tmp"; open O, '>', $descfn or die "$descfn: $!"; + $msg =~ s/\s+$//g; $msg =~ s/\n/\n /g; $msg =~ s/^\s+$/ ./mg; print O <{Version}) - Last (up to) $ncommits git changes, FYI: - . - $msg +Description: $msg Author: $author - +$xinfo --- END close O or die $!; + { local $ENV{'EDITOR'} = cmdoutput qw(realpath --), $0; local $ENV{'VISUAL'} = $ENV{'EDITOR'}; local $ENV{$fakeeditorenv} = cmdoutput qw(realpath --), $descfn; runcmd_ordryrun_local @dpkgsource, qw(--commit .), $patchname; } +} + +sub quiltify_trees_differ ($$) { + my ($x,$y) = @_; + # returns 1 iff the two tree objects differ other than in debian/ + local $/=undef; + my @cmd = (@git, qw(diff-tree --name-only -z), $x, $y); + my $diffs= cmdoutput @cmd; + foreach my $f (split /\0/, $diffs) { + next if $f eq 'debian'; + return 1; + } + return 0; +} + +sub quiltify_tree_sentinelfiles ($) { + # lists the `sentinel' files present in the tree + my ($x) = @_; + my $r = cmdoutput @git, qw(ls-tree --name-only), $x, + qw(-- debian/rules debian/control); + $r =~ s/\n/,/g; + return $r; +} + +sub quiltify ($$) { + my ($clogp,$target) = @_; + + # Quilt patchification algorithm + # + # We search backwards through the history of the main tree's HEAD + # (T) looking for a start commit S whose tree object is identical + # to to the patch tip tree (ie the tree corresponding to the + # current dpkg-committed patch series). For these purposes + # `identical' disregards anything in debian/ - this wrinkle is + # necessary because dpkg-source treates debian/ specially. + # + # We can only traverse edges where at most one of the ancestors' + # trees differs (in changes outside in debian/). And we cannot + # handle edges which change .pc/ or debian/patches. To avoid + # going down a rathole we avoid traversing edges which introduce + # debian/rules or debian/control. And we set a limit on the + # number of edges we are willing to look at. + # + # If we succeed, we walk forwards again. For each traversed edge + # PC (with P parent, C child) (starting with P=S and ending with + # C=T) to we do this: + # - git checkout C + # - dpkg-source --commit with a patch name and message derived from C + # After traversing PT, we git commit the changes which + # should be contained within debian/patches. + + changedir '../fake'; + mktree_in_ud_here(); + rmtree '.pc'; + runcmd @git, 'add', '.'; + my $oldtiptree=git_write_tree(); + changedir '../work'; + + # The search for the path S..T is breadth-first. We maintain a + # todo list containing search nodes. A search node identifies a + # commit, and looks something like this: + # $p = { + # Commit => $git_commit_id, + # Child => $c, # or undef if P=T + # Whynot => $reason_edge_PC_unsuitable, # in @nots only + # Nontrivial => true iff $p..$c has relevant changes + # }; + + my @todo; + my @nots; + my $sref_S; + my $max_work=100; + my %considered; # saves being exponential on some weird graphs + + my $t_sentinels = quiltify_tree_sentinelfiles $target; + + my $not = sub { + my ($search,$whynot) = @_; + printdebug " search NOT $search->{Commit} $whynot\n"; + $search->{Whynot} = $whynot; + push @nots, $search; + no warnings qw(exiting); + next; + }; + + push @todo, { + Commit => $target, + }; + + while (@todo) { + my $c = shift @todo; + next if $considered{$c->{Commit}}++; + + $not->($c, "maximum search space exceeded") if --$max_work <= 0; + + printdebug "quiltify investigate $c->{Commit}\n"; + + # are we done? + if (!quiltify_trees_differ $c->{Commit}, $oldtiptree) { + printdebug " search finished hooray!\n"; + $sref_S = $c; + last; + } + + if ($quilt_mode eq 'nofix') { + fail "quilt fixup required but quilt mode is \`nofix'\n". + "HEAD commit $c->{Commit} differs from tree implied by ". + " debian/patches (tree object $oldtiptree)"; + } + if ($quilt_mode eq 'smash') { + printdebug " search quitting smash\n"; + last; + } + + my $c_sentinels = quiltify_tree_sentinelfiles $c->{Commit}; + $not->($c, "has $c_sentinels not $t_sentinels") + if $c_sentinels ne $t_sentinels; + + my $commitdata = cmdoutput @git, qw(cat-file commit), $c->{Commit}; + $commitdata =~ m/\n\n/; + $commitdata =~ $`; + my @parents = ($commitdata =~ m/^parent (\w+)$/gm); + @parents = map { { Commit => $_, Child => $c } } @parents; + + $not->($c, "root commit") if !@parents; + + foreach my $p (@parents) { + $p->{Nontrivial}= quiltify_trees_differ $p->{Commit},$c->{Commit}; + } + my $ndiffers = grep { $_->{Nontrivial} } @parents; + $not->($c, "merge ($ndiffers nontrivial parents)") if $ndiffers > 1; + + foreach my $p (@parents) { + printdebug "considering C=$c->{Commit} P=$p->{Commit}\n"; + + my @cmd= (@git, qw(diff-tree -r --name-only), + $p->{Commit},$c->{Commit}, qw(-- debian/patches .pc)); + my $patchstackchange = cmdoutput @cmd; + if (length $patchstackchange) { + $patchstackchange =~ s/\n/,/g; + $not->($p, "changed $patchstackchange"); + } + + printdebug " search queue P=$p->{Commit} ", + ($p->{Nontrivial} ? "NT" : "triv"),"\n"; + push @todo, $p; + } + } + + if (!$sref_S) { + printdebug "quiltify want to smash\n"; + + my $abbrev = sub { + my $x = $_[0]{Commit}; + $x =~ s/(.*?[0-9a-z]{8})[0-9a-z]*$/$1/; + return $; + }; + my $reportnot = sub { + my ($notp) = @_; + my $s = $abbrev->($notp); + my $c = $notp->{Child}; + $s .= "..".$abbrev->($c) if $c; + $s .= ": ".$c->{Whynot}; + return $s; + }; + if ($quilt_mode eq 'linear') { + print STDERR "$us: quilt fixup cannot be linear. Stopped at:\n"; + foreach my $notp (@nots) { + print STDERR "$us: ", $reportnot->($notp), "\n"; + } + fail "quilt fixup naive history linearisation failed.\n". + "Use dpkg-source --commit by hand; or, --quilt=smash for one ugly patch"; + } elsif ($quilt_mode eq 'smash') { + } elsif ($quilt_mode eq 'auto') { + progress "quilt fixup cannot be linear, smashing..."; + } else { + die "$quilt_mode ?"; + } + + my $time = time; + my $ncommits = 3; + my $msg = cmdoutput @git, qw(log), "-n$ncommits"; + + quiltify_dpkg_commit "auto-$version-$target-$time", + (getfield $clogp, 'Maintainer'), + "Automatically generated patch ($clogp->{Version})\n". + "Last (up to) $ncommits git changes, FYI:\n\n". $msg; + return; + } + + progress "quiltify linearisation planning successful, executing..."; + + for (my $p = $sref_S; + my $c = $p->{Child}; + $p = $p->{Child}) { + printdebug "quiltify traverse $p->{Commit}..$c->{Commit}\n"; + next unless $p->{Nontrivial}; + + my $cc = $c->{Commit}; + + my $commitdata = cmdoutput @git, qw(cat-file commit), $cc; + $commitdata =~ m/\n\n/ or die "$c ?"; + $commitdata = $`; + my $msg = $'; #'; + $commitdata =~ m/^author (.*) \d+ [-+0-9]+$/m or die "$cc ?"; + my $author = $1; + + $msg =~ s/^(.*)\n*/$1\n/ or die "$cc $msg ?"; + + my $title = $1; + my $patchname = $title; + $patchname =~ s/[.:]$//; + $patchname =~ y/ A-Z/-a-z/; + $patchname =~ y/-a-z0-9_.+=~//cd; + $patchname =~ s/^\W/x-$&/; + $patchname = substr($patchname,0,40); + my $index; + for ($index=''; + stat "debian/patches/$patchname$index"; + $index++) { } + $!==ENOENT or die "$patchname$index $!"; + + runcmd @git, qw(checkout -q), $cc; + + # We use the tip's changelog so that dpkg-source doesn't + # produce complaining messages from dpkg-parsechangelog. None + # of the information dpkg-source gets from the changelog is + # actually relevant - it gets put into the original message + # which dpkg-source provides our stunt editor, and then + # overwritten. + runcmd @git, qw(checkout -q), $target, qw(debian/changelog); + + quiltify_dpkg_commit "$patchname$index", $author, $msg, + "X-Dgit-Generated: $clogp->{Version} $cc\n"; + + runcmd @git, qw(checkout -q), $cc, qw(debian/changelog); + } + + runcmd @git, qw(checkout -q master); +} + +sub build_maybe_quilt_fixup () { + my $format=get_source_format; + return unless madformat $format; + # sigh + + # Our objective is: + # - honour any existing .pc in case it has any strangeness + # - determine the git commit corresponding to the tip of + # the patch stack (if there is one) + # - if there is such a git commit, convert each subsequent + # git commit into a quilt patch with dpkg-source --commit + # - otherwise convert all the differences in the tree into + # a single git commit + # + # To do this we: + + # Our git tree doesn't necessarily contain .pc. (Some versions of + # dgit would include the .pc in the git tree.) If there isn't + # one, we need to generate one by unpacking the patches that we + # have. + # + # We first look for a .pc in the git tree. If there is one, we + # will use it. (This is not the normal case.) + # + # Otherwise need to regenerate .pc so that dpkg-source --commit + # can work. We do this as follows: + # 1. Collect all relevant .orig from parent directory + # 2. Generate a debian.tar.gz out of + # debian/{patches,rules,source/format} + # 3. Generate a fake .dsc containing just these fields: + # Format Source Version Files + # 4. Extract the fake .dsc + # Now the fake .dsc has a .pc directory. + # (In fact we do this in every case, because in future we will + # want to search for a good base commit for generating patches.) + # + # Then we can actually do the dpkg-source --commit + # 1. Make a new working tree with the same object + # store as our main tree and check out the main + # tree's HEAD. + # 2. Copy .pc from the fake's extraction, if necessary + # 3. Run dpkg-source --commit + # 4. If the result has changes to debian/, then + # - git-add them them + # - git-add .pc if we had a .pc in-tree + # - git-commit + # 5. If we had a .pc in-tree, delete it, and git-commit + # 6. Back in the main tree, fast forward to the new HEAD + + my $clogp = parsechangelog(); + my $headref = git_rev_parse('HEAD'); + + prep_ud(); + changedir $ud; + + my $upstreamversion=$version; + $upstreamversion =~ s/-[^-]*$//; + + my $fakeversion="$upstreamversion-~~DGITFAKE"; + + my $fakedsc=new IO::File 'fake.dsc', '>' or die $!; + print $fakedsc <addfile($fh); + print $fakedsc " ".$md->hexdigest." $size $b\n" or die $!; + }; + + foreach my $f (<../../../../*>) { #/){ + my $b=$f; $b =~ s{.*/}{}; + next unless is_orig_file $b, srcfn $upstreamversion,''; + link $f, $b or die "$b $!"; + $dscaddfile->($b); + } + + my @files=qw(debian/source/format debian/rules); + if (stat_exists '../../../debian/patches') { + push @files, 'debian/patches'; + } + + my $debtar= srcfn $fakeversion,'.debian.tar.gz'; + runcmd qw(env GZIP=-1 tar -zcf), "./$debtar", qw(-C ../../..), @files; + + $dscaddfile->($debtar); + close $fakedsc or die $!; + + runcmd qw(sh -ec), 'exec dpkg-source --no-check -x fake.dsc >/dev/null'; + + my $fakexdir= $package.'-'.(stripepoch $upstreamversion); + rename $fakexdir, "fake" or die "$fakexdir $!"; + + mkdir "work" or die $!; + changedir "work"; + mktree_in_ud_here(); + runcmd @git, qw(reset --hard), $headref; + + my $mustdeletepc=0; + if (stat_exists ".pc") { + -d _ or die; + progress "Tree already contains .pc - will use it then delete it."; + $mustdeletepc=1; + } else { + rename '../fake/.pc','.pc' or die $!; + } + + quiltify($clogp,$headref); if (!open P, '>>', ".pc/applied-patches") { $!==&ENOENT or die $!; @@ -1853,6 +2460,14 @@ END } commit_quilty_patch(); + + if ($mustdeletepc) { + runcmd @git, qw(rm -rq .pc); + commit_admin "Commit removal of .pc (quilt series tracking data)"; + } + + changedir '../../../..'; + runcmd @git, qw(pull --ff-only -q .git/dgit/unpack/work master); } sub quilt_fixup_editor () { @@ -1874,6 +2489,8 @@ sub quilt_fixup_editor () { exit 0; } +#----- other building ----- + sub clean_tree () { if ($cleanmode eq 'dpkg-source') { runcmd_ordryrun_local @dpkgbuildpackage, qw(-T clean); @@ -1885,6 +2502,11 @@ sub clean_tree () { } } +sub cmd_clean () { + badusage "clean takes no additional arguments" if @ARGV; + clean_tree(); +} + sub build_prep () { badusage "-p is not allowed when building" if defined $package; check_not_dirty(); @@ -1909,7 +2531,7 @@ sub changesopts () { } if (@vsns) { @vsns = map { $_->[0] } @vsns; - @vsns = sort { -version_compare_string($a, $b) } @vsns; + @vsns = sort { -version_compare($a, $b) } @vsns; $changes_since_version = $vsns[0]; progress "changelog will contain changes since $vsns[0]"; } else { @@ -1974,8 +2596,9 @@ sub cmd_sbuild { changedir ".."; my $pat = "${package}_".(stripepoch $version)."_*.changes"; if (act_local()) { - stat $dscfn or fail "$dscfn (in parent directory): $!"; - stat $sourcechanges or fail "$sourcechanges (in parent directory): $!"; + stat_exist $dscfn or fail "$dscfn (in parent directory): $!"; + stat_exists $sourcechanges + or fail "$sourcechanges (in parent directory): $!"; foreach my $cf (glob $pat) { next if $cf eq $sourcechanges; unlink $cf or fail "remove $cf: $!"; @@ -1992,7 +2615,7 @@ sub cmd_sbuild { runcmd_ordryrun_local @mergechanges, @changesfiles; my $multichanges = "${package}_".(stripepoch $version)."_multi.changes"; if (act_local()) { - stat $multichanges or fail "$multichanges: $!"; + stat_exists $multichanges or fail "$multichanges: $!"; } printdone "build successful, results in $multichanges\n" or die $!; } @@ -2001,9 +2624,18 @@ sub cmd_quilt_fixup { badusage "incorrect arguments to dgit quilt-fixup" if @ARGV; my $clogp = parsechangelog(); $version = getfield $clogp, 'Version'; + $package = getfield $clogp, 'Source'; build_maybe_quilt_fixup(); } +sub cmd_archive_api_query { + badusage "need only 1 subpath argument" unless @ARGV==1; + my ($subpath) = @ARGV; + my @cmd = archive_api_query_cmd($subpath); + debugcmd ">",@cmd; + exec @cmd or fail "exec curl: $!\n"; +} + #---------- argument parsing and main program ---------- sub cmd_version { @@ -2073,15 +2705,23 @@ sub parseopts () { $cleanmode = $1; } elsif (m/^--clean=(.*)$/s) { badusage "unknown cleaning mode \`$1'"; + } elsif (m/^--quilt=($quilt_modes_re)$/s) { + push @ropts, $_; + $quilt_mode = $1; + } elsif (m/^--quilt=(.*)$/s) { + badusage "unknown quilt fixup mode \`$1'"; } elsif (m/^--ignore-dirty$/s) { push @ropts, $_; $ignoredirty = 1; } elsif (m/^--no-quilt-fixup$/s) { push @ropts, $_; - $noquilt = 1; + $quilt_mode = 'nocheck'; } elsif (m/^--no-rm-on-error$/s) { push @ropts, $_; $rmonerror = 0; + } elsif (m/^--deliberately-($deliberately_re)$/s) { + push @ropts, $_; + push @deliberatelies, $&; } else { badusage "unknown long option \`$_'"; } @@ -2097,9 +2737,8 @@ sub parseopts () { 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; @@ -2113,24 +2752,27 @@ sub parseopts () { } elsif (s/^-c(.*=.*)//s) { push @ropts, $&; push @git, '-c', $1; - } elsif (s/^-d(.*)//s) { + } elsif (s/^-d(.+)//s) { push @ropts, $&; $idistro = $1; - } elsif (s/^-C(.*)//s) { + } elsif (s/^-C(.+)//s) { push @ropts, $&; $changesfile = $1; if ($changesfile =~ s#^(.*)/##) { $buildproductsdir = $1; } - } elsif (s/^-k(.*)//s) { + } elsif (s/^-k(.+)//s) { $keyid=$1; - } elsif (s/^-wn//s) { + } elsif (m/^-[vdCk]$/) { + badusage + "option \`$_' requires an argument (and no space before the argument)"; + } elsif (s/^-wn$//s) { push @ropts, $&; $cleanmode = 'none'; - } elsif (s/^-wg//s) { + } elsif (s/^-wg$//s) { push @ropts, $&; $cleanmode = 'git'; - } elsif (s/^-wd//s) { + } elsif (s/^-wd$//s) { push @ropts, $&; $cleanmode = 'dpkg-source'; } else { @@ -2145,8 +2787,6 @@ if ($ENV{$fakeeditorenv}) { quilt_fixup_editor(); } -delete $ENV{'DGET_UNPACK'}; - parseopts(); print STDERR "DRY RUN ONLY\n" if $dryrun_level > 1; print STDERR "DAMP RUN - WILL MAKE LOCAL (UNSIGNED) CHANGES\n" @@ -2157,4 +2797,16 @@ if (!@ARGV) { } my $cmd = shift @ARGV; $cmd =~ y/-/_/; -{ no strict qw(refs); &{"cmd_$cmd"}(); } + +if (!defined $quilt_mode) { + $quilt_mode = cfg('dgit.force.quilt-mode', 'RETURN-UNDEF') + // access_cfg('quilt-mode', 'RETURN-UNDEF') + // 'linear'; + $quilt_mode =~ m/^($quilt_modes_re)$/ + or badcfg "unknown quilt-mode \`$quilt_mode'"; + $quilt_mode = $1; +} + +my $fn = ${*::}{"cmd_$cmd"}; +$fn or badusage "unknown operation $cmd"; +$fn->();