From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 18 Feb 2013 16:46:05 +0000 (+0000)
Subject: automatic agpl compliance: generation stuff, compiles but untested and not hooked in
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=cgi-auth-flexible.git;a=commitdiff_plain;h=7fd33ab35a68417cac98fd0a8aa4ffcfecf86015

automatic agpl compliance: generation stuff, compiles but untested and not hooked in
---

diff --git a/cgi-auth-flexible.pm b/cgi-auth-flexible.pm
index 81a12aa..4dd6daf 100644
--- a/cgi-auth-flexible.pm
+++ b/cgi-auth-flexible.pm
@@ -200,14 +200,6 @@ sub gen_plain_footer_html ($$) {
 
 #---------- licence and source code ----------
 
-#sub dump_licence ($$$) {
-#    
-#    my ($c,$r, $fh) = @_;
-#    foreach my $incdir ($r->_ch('getsource_includedirs')) {
-#	
-#    }
-#}
-
 sub srcdump_dump_thing ($$$) {
     my ($c,$r, $thing, $outfn) = @_;
     die if $thing =~ m/\W/ || $thing !~ m/\w/;
@@ -234,6 +226,117 @@ sub dump_plain ($$$$) {
     }
 }
 
+sub srcdump_process_dir ($$$$$$) {
+    my ($c, $v, $dumpdir, $incdir, $tarballcounter,
+	$needlicence, $dirsdone) = @_;
+    return () if $v->_ch('srcdump_system_dir', $incdir);
+    my $upwards = $incdir;
+    for (;;) {
+	$upwards =~ s#/+##;
+	last unless $upwards =~ m#[^/]#;
+	foreach my $try (@{ $v->{S}{srcdump_vcs_dirs} }) {
+	    if (!stat "$upwards/$try") {
+		$!==&ENOENT or die "check $upwards/$try $!";
+		next;
+	    }
+	    $try =~ m/\w+/ or die;
+	    return if $dirsdone->{$upwards}++;
+	    return $v->_ch(('srcdump_byvcs_'.lc $try),
+			   $dumpdir, $upwards, $tarballcounter);
+	}
+	$upwards =~ s#/*[^/]+##;
+    }
+    return $v->_ch('srcdump_novcs', $dumpdir, $incdir, $tarballcounter);
+}
+
+sub srcdump_novcs ($$$$$) {
+    my ($c, $v, $dumpdir, $dir, $tarballcounter) = @_;
+    my $script = 'find -type f -perm +004';
+    foreach my $excl (@{ $v->{S}{srcdump_excludes} }) {
+	$script .= " \\! -name '$excl'";
+    }
+    $script .= " -print0";
+    return srcdump_dir_cpio($c,$v,$dumpdir,$dir,$tarballcounter,$script);
+}
+
+sub srcdump_byvcs_git ($$$$$) {
+    my ($c, $v, $dumpdir, $dir, $tarballcounter) = @_;
+    return srcdump_dir_cpio($c,$v,$dumpdir,$dir,$tarballcounter,"
+                 git-ls-files -z;
+                 git-ls-files -z --others --exclude-from=.gitignore;
+                 find .git -print0
+                            ");
+}
+
+sub scrdump_dir_cpio ($$$$$) {
+    my ($c,$v,$dumpdir,$dir,$tarballcounter,$script) = @_;
+    my $outfile = "$dumpdir/$$tarballcounter.tar";
+    my $pid = fork();
+    defined $pid or die $!;
+    if (!$pid) {
+	open STDOUT, ">", $outfile or die "$outfile $!";
+	chdir $dir or die "chdir $dir: $!";
+	exec '/bin/bash','-ec','',"
+            set -o pipefail
+	    (
+	     $script
+	    ) | (
+	     cpio -Hustar -o --quiet -0 -R 1000:1000 || \
+             cpio -Hustar -o --quiet -0
+            )
+            ";
+	die $!;
+    }
+    $!=0; (waitpid $pid, 0) == $pid or die "$!";
+    die "$dir ($script) $outfile $?" if $?;
+    $$tarballcounter++;
+    return $outfile;
+}
+
+sub srcdump_dirscan_prepare ($$) {
+    my ($c, $v) = @_;
+    my $dumpdir = $v->_get_path('srcdump');
+    my $lockf = new IO::File "$dumpdir/generate.lock", 'w+'
+	or die "$dumpdir/generate.lock $!";
+    flock $lockf, LOCK_EX or die "$dumpdir/generate.lock $!";
+    my $needlicence = "$dumpdir/licence.tmp";
+    unlink $needlicence || $!==&ENOENT or die "rm $needlicence $!";
+    if (defined $v->{S}{srcdump_licence_path}) {
+	copy($v->{S}{srcdump_licence_path}, $needlicence)
+	    or die "$v->{S}{srcdump_licence_path} $!";
+	$needlicence = undef;
+    }
+    my $srctarballcounter = 'aaa';
+    my %dirsdone;
+    my @srcfiles = ("$dumpdir/licence.data");
+    foreach my $incdir ($v->_ch('getsource_includedirs')) {
+	if (defined $needlicence) {
+	    foreach my $try (@{ $v->{S}{srcdump_licence_files} }) {
+		last if copy("$incdir/$try", $needlicence);
+		$!==&ENOENT or die "copy $incdir/$try $!";
+	    }
+	}
+	push @srcfiles, $v->_ch('srcdump_process_dir', $dumpdir, $incdir,
+				\$srctarballcounter, \$needlicence, \%dirsdone);
+	$dirsdone{$incdir}++;
+    }
+    die "licence file not found" unless defined $needlicence;
+    srcdump_install($c,$v, $dumpdir, 'licence', 'text/plain');
+    close $lockf or die $!;
+}
+
+sub srcdump_install ($$$$$) {
+    my ($c,$v, $dumpdir, $which, $ctype) = @_;
+    rename "$dumpdir/$which.tmp", "$dumpdir/$which.data"
+	or die "$dumpdir/$which.data $!";
+    my $ctf = new IO::File "$dumpdir/$which.tmp", 'w'
+	or die "$dumpdir/$which.tmp $!";
+    print $ctf $ctype, "\n" or die $!;
+    close $ctf or die $!;
+    rename "$dumpdir/$which.tmp", "$dumpdir/$which.ctype"
+	or die "$dumpdir/$which.ctype $!";
+}
+
 #---------- verifier object methods ----------
 
 sub new_verifier {
@@ -292,7 +395,17 @@ sub new_verifier {
 	    gen_login_link => \&gen_plain_login_link,
 	    gen_postmainpage_form => \&gen_postmainpage_form,
 	    srcdump_dump_thing => \&srcdump_dump_thing,
-	    source_includedirs => sub { grep { !m#^/etc/# } @INC; },
+	    srcdump_prepare => \&srcdump_dirscan_prepare,
+	    srcdump_licence_path => undef,
+	    srcdump_licence_files => [qw(AGPLv3 CGI/Auth/Flexible/AGPLv3)],
+	    srcdump_system_dir => sub { $_[2] =~ m#^/etc/|^/usr/(?!local/)#; },
+	    srcdump_vcs_dirs => [qw(.git .hg .svn CVS)],
+	    srcdump_byvcs_git => \&srcdump_byvcs_git,
+	    srcdump_byvcs_hg => \&srcdump_byvcs_hg,
+	    srcdump_byvcs_svn => \&srcdump_byvcs_svn,
+	    srcdump_byvcs_cvs => \&srcdump_byvcs_cvs,
+	    srcdump_novcs => \&srcdump_novcs,
+	    srcdump_excludes => [qw(*~ *.bak *.tmp), '#*#'],
 	    gettext => sub { gettext($_[2]); },
 	    print => sub { print $_[2] or die $!; },
             debug => sub { }, # like print; msgs contain trailing \n