X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.main.git;a=blobdiff_plain;f=yarrg%2FCommods.pm;h=372fe16f51544081e9378d68563a91a5b38868df;hp=44cc74e8543b91b885ee76082cb3ea0042d5f3fd;hb=872e647cac241531e4599c8b8b330d8772020253;hpb=6a7caa99e3c1d5ef70ec3858884e0fdda863792a;ds=sidebyside

diff --git a/yarrg/Commods.pm b/yarrg/Commods.pm
index 44cc74e..372fe16 100644
--- a/yarrg/Commods.pm
+++ b/yarrg/Commods.pm
@@ -24,6 +24,7 @@ package Commods;
 use IO::File;
 use HTTP::Request::Common ();
 use POSIX;
+use LWP::UserAgent;
 
 use strict;
 use warnings;
@@ -41,7 +42,8 @@ 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);
     %EXPORT_TAGS = ( );
@@ -74,9 +76,13 @@ my (@rawcm, @nocm); # eg $rawcm[0]='fine rum'; $rawcm[1]='fine %c cloth'
 #  when extending the format of source-info in a non-backward
 #  compatible way, be sure to update update-master-info too.
 
-sub parse_info1 ($$) {
-    my ($mmfn,$src)= @_;
-    my $mm= new IO::File $mmfn, 'r' or die "$mmfn $!";
+sub parse_info1 ($$$) {
+    my ($mmfn,$src,$enoentok)= @_;
+    my $mm= new IO::File $mmfn, 'r';
+    if (!$mm) {
+	return if $enoentok && $!==&ENOENT;
+	die "$mmfn $!";
+    }
     my @ctx= ();
     while (<$mm>) {
 	next if m/^\s*\#/;
@@ -176,16 +182,9 @@ sub parse_info1 ($$) {
 }
 
 sub parse_info_clientside () {
-    my $yarrg= $ENV{'YPPSC_YARRG_DICT_UPDATE'};
-    return unless $yarrg;
-    my $master= fetch_with_rsync("info-$masterinfoversion");
-    parse_info1($master,'s');
-    my $local= '_local-info.txt';
-    if (stat $local) {
-	parse_info1($local,'s');
-    } else {
-	die "$local $!" unless $! == &ENOENT;
-    }
+    my $master= fetch_with_rsync("info-v$masterinfoversion");
+    parse_info1($master,'s',1);
+    parse_info1('_local-info.txt','s',1);
 }
 
 sub fetch_with_rsync ($) {
@@ -205,12 +204,12 @@ sub fetch_with_rsync ($) {
 }
 
 sub parse_info_serverside () {
-    parse_info1('source-info.txt','s');
+    parse_info1('source-info.txt','s',0);
 }
 sub parse_info_serverside_ocean ($) {
     my ($oceanname) = @_;
     die "unknown ocean $oceanname ?" unless exists $oceans{$oceanname};
-    parse_info1("_ocean-".(lc $oceanname).".txt",'s');
+    parse_info1("_ocean-".(lc $oceanname).".txt", 's',0);
 }
 
 sub parse_pctb_commodmap () {
@@ -235,16 +234,26 @@ sub get_our_version ($$) {
     my ($aref,$prefix) = @_;
     $aref->{"${prefix}name"}= 'ypp-sc-tools yarrg';
     $aref->{"${prefix}fixes"}= 'lastpage checkpager';
-
-    my $version= `git-describe --tags HEAD || echo 0unknown`; $? and die $?;
-    chomp($version);
-    $aref->{"${prefix}version"}= $version;
+    $aref->{"${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
+	else
+		gd="git describe"
+	fi
+	\$gd --tags HEAD || echo 0unknown
+    `; $? and die $?;
+    chomp($version);
+    return $version;
+}
+
 sub pipethrough_prep () {
     my $tf= IO::File::new_tmpfile() or die $!;
     return $tf;
@@ -382,4 +391,22 @@ 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;
+}
+
 1;