X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.db-live.git;a=blobdiff_plain;f=yarrg%2FCommods.pm;h=24f2e81ae9eedb49353a925f4a2a06d2aeb1b200;hp=9c8281876f334b99578e73622cf95f00e9ec6259;hb=59316f0dcddd4e5d15e47dfde36f513e1685c4ae;hpb=555b3391b3cd9967a29b219fff242b583137d2b8

diff --git a/yarrg/Commods.pm b/yarrg/Commods.pm
index 9c82818..24f2e81 100644
--- a/yarrg/Commods.pm
+++ b/yarrg/Commods.pm
@@ -22,8 +22,10 @@
 
 package Commods;
 use IO::File;
+use IO::Pipe;
 use HTTP::Request::Common ();
 use POSIX;
+use LWP::UserAgent;
 
 use strict;
 use warnings;
@@ -41,15 +43,43 @@ BEGIN {
 		      &get_our_version &check_tsv_line
 		      &pipethrough_prep &pipethrough_run
 		      &pipethrough_run_along &pipethrough_run_finish
-		      &pipethrough_run_gzip
+		      &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();
 }
 
-our $masterinfoversion= 2; # version we understand
+our $masterinfoversion= 2; # version we understand.
+#
+# To extend the source-info.txt format:
+#
+#    * Commods.pm:parse_info1
+#       add code to parse new version
+#
+#    * source-info.txt
+#       add new information
+#
+# If new data should NOT be in master-info.txt too:
+#
+#    * update-master-info:process_some_info
+#       check that code for converting source-info to master-info
+#       removes the extra info; add code to remove it if necessary
+#
+#    * db-idempotent-populate
+#       if database schema is extended, add code to copy data
+#
+# If new data DOES need to be in master-info.txt too:
+#
+#    * Commods.pm:$masterinfoversion
+#       increment
+#
+#    * update-master-info:process_some_info
+#       add code to convert new version to old, by removing
+#       extra info conditionally depending on version
 
 our %oceans; # eg $oceans{'Midnight'}{'Ruby'}{'Eta Island'}= $sources;
 our %clients; # eg $clients{'ypp-sc-tools'}= [ qw(last-page) ];
@@ -232,7 +262,14 @@ sub get_our_version ($$) {
     my ($aref,$prefix) = @_;
     $aref->{"${prefix}name"}= 'ypp-sc-tools yarrg';
     $aref->{"${prefix}fixes"}= 'lastpage checkpager';
+    $aref->{"${prefix}version"}= version_core();
+    return $aref;
+    # clientname	"ypp-sc-tools"
+    # clientversion	2.1-g2e06a26  [from git-describe --tags HEAD]
+    # clientfixes	"lastpage"  [space separated list]
+}
 
+sub version_core () {
     my $version= `
 	if type -p git-describe >/dev/null 2>&1; then
 		gd=git-describe
@@ -242,11 +279,7 @@ sub get_our_version ($$) {
 	\$gd --tags HEAD || echo 0unknown
     `; $? and die $?;
     chomp($version);
-    $aref->{"${prefix}version"}= $version;
-    return $aref;
-    # clientname	"ypp-sc-tools"
-    # clientversion	2.1-g2e06a26  [from git-describe --tags HEAD]
-    # clientfixes	"lastpage"  [space separated list]
+    return $version;
 }
 
 sub pipethrough_prep () {
@@ -386,4 +419,56 @@ sub set_ctype_utf8 () {
     setlocale(LC_CTYPE, "en.UTF-8");
 }
 
+sub http_useragent_string_map ($$) {
+    my ($caller_lib_agent, $reason_style_or_caller) = @_;
+    $caller_lib_agent =~ y/A-Za-z/N-ZA-Mn-za-m/;
+    $caller_lib_agent =~ s/\s/_/g;
+    my $version= version_core();
+    return "yarrg/$version ($reason_style_or_caller)".
+	   " $caller_lib_agent".
+	   " (http://yarrg.chiark.net/intro)";
+}
+
+sub http_useragent ($) {
+    my ($who) = @_;
+    my $ua= LWP::UserAgent->new;
+    my $base= $ua->_agent();
+    $ua->agent(http_useragent_string_map($base, $who));
+    return $ua;
+}
+
+sub source_tarball ($$) {
+    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;