Allow downloading of database tree source code via dictup CGI scripts

[ypp-sc-tools.web-live.git] / yarrg / Commods.pm

diff --git a/yarrg/Commods.pm b/yarrg/Commods.pm
index f74571ddd39c6c5093902c51aae03969cb780532..24f2e81ae9eedb49353a925f4a2a06d2aeb1b200 100644 (file)
--- a/yarrg/Commods.pm
+++ b/yarrg/Commods.pm
@@ -22,6 +22,7 @@
 
 package Commods;
 use IO::File;
+use IO::Pipe;
 use HTTP::Request::Common ();
 use POSIX;
 use LWP::UserAgent;
@@ -45,7 +46,8 @@ BEGIN {
                      &pipethrough_run_gzip &http_useragent &version_core
                      &http_useragent_string_map
                      &cgipostform &yarrgpostform &cgi_get_caller
-                     &set_ctype_utf8 $masterinfoversion);
+                     &set_ctype_utf8 $masterinfoversion
+                     &source_tarball);
     %EXPORT_TAGS = ( );
 
     @EXPORT_OK   = qw();
@@ -435,4 +437,38 @@ sub http_useragent ($) {
     return $ua;
 }
 
+sub source_tarball ($$) {
+    my ($sourcebasedir,$spitoutfn) = @_;
+
+    my $pipe= new IO::Pipe or die $!;
+    my $pid= fork();  defined $pid or die $!;
+    if (!$pid) {
+       $ENV{'YPPSC_YARRG_SRCBASE'}= $sourcebasedir;
+       $pipe->writer();
+       exec '/bin/sh','-c','
+               cd -P "$YPPSC_YARRG_SRCBASE"
+               (
+                git-ls-files -z;
+                git-ls-files -z --others --exclude-from=.gitignore;
+                if test -d .git; then find .git -print0; fi
+               ) | (
+                cpio -Hustar -o --quiet -0 -R 1000:1000 || \
+                cpio -Hustar -o --quiet -0
+               ) | gzip
+       ';
+       die $!;
+    }
+    $pipe->reader();
+
+    my ($d, $l);
+    while ($l= read $pipe, $d, 65536) {
+       $spitoutfn->($d);
+    }
+    waitpid $pid,0;
+    defined $l or die "read pipe $!";
+    $pipe->error and die "pipe error $!";
+    close $pipe;
+    # deliberately ignore errors
+}
+
 1;