From 0693dcb548569f118d1d7eefdf2874ef56334eb2 Mon Sep 17 00:00:00 2001
From: "B. Watson" <yalhcru@gmail.com>
Date: Sat, 22 Sep 2018 17:18:44 -0400
Subject: sbosrcarch: slimjet hack

---
 sbosrcarch | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 63 insertions(+), 1 deletion(-)

diff --git a/sbosrcarch b/sbosrcarch
index e7f1a2b..f5da6d4 100755
--- a/sbosrcarch
+++ b/sbosrcarch
@@ -15,6 +15,10 @@ our %url_filename_collisions = (
 	'https://ftp.mirrorservice.org/sites/download.salixos.org/x86_64/extra-14.2/source/libraries/p4api/p4api.tgz' => 'p4api.tgz.x86_64'
 );
 
+our %url_rewrite_hacks = (
+	'network/slimjet' => \&slimjet_hack
+);
+
 # TODO create_mode stats are wrong
 
 # TODO based on feedback from ttkp and pink_mist on IRC:
@@ -1112,6 +1116,58 @@ sub store_file {
 	}
 }
 
+# Unless/until upstream fixes their shit...
+# slimjet has a really fast release cycle, sometimes 2 or 3 per week,
+# and of course SBo only updates once per week.
+# Their download URL doesn't change (unversioned), causing md5sum
+# mismatches more often than not.
+# However, for all versions *but* the latest release, there's also
+# an archive URL with the version number in the path.
+# So slimjet_hack() will read VERSION from the slimjet.info file, see
+# if the archive URL exists (via HTTP HEAD), and if so, return that
+# instead of the real URL. If it's not found, just return the real
+# URL we were passed (which might or might not work OK).
+sub slimjet_hack {
+	my $url = shift;
+	my $file = shift || "network/slimjet.info";
+	my $ver;
+	open my $f, "<$file";
+
+	if(!$f) {
+		print "slimjet_hack(): $file: $!\n";
+		return $url;
+	}
+
+	while(<$f>) {
+		if(/^\s*VERSION\s*=\s*"?([^"]+)"?/) {
+			$ver = $1;
+			last;
+		}
+	}
+
+	if(!$ver) {
+		print "slimjet_hack(): couldn't extract VERSION from $file\n";
+		return $url;
+	}
+
+	my $newurl = $url;
+	$newurl =~ s,.*/,,;
+	$newurl = "https://www.slimjet.com/release/archive/$ver/$newurl";
+	print "slimjet_hack(): \$newurl: $newurl\n";
+
+	my $cmd = "$curl $curlopts --silent --head --fail --max-time 60 $newurl >/dev/null";
+	my $result = system($cmd);
+
+	if($result) {
+		print "slimjet_hack(): \$newurl not found\n";
+	} else {
+		$url = $newurl;
+	}
+	print "slimjet_hack(): return value: $url\n";
+
+	return $url;
+}
+
 # handle_info_file() is used as the 'wanted' sub for File::Find, but
 # it's also called from add and update modes, so it doesn't use any of
 # the File::Find stuff. Call while cd'ed to $sbogitdir, with $_ set to
@@ -1136,6 +1192,10 @@ sub handle_info_file {
 		my $filename = url_to_filename($url);
 		print ": $url\n";
 
+		if(exists($url_rewrite_hacks{$category/$prgnam})) {
+			$url = $url_rewrite_hacks{$category/$prgnam}->($url);
+		}
+
 		if(already_exists($filename, $category, $prgnam, $md5)) {
 			print "  already in archive, OK\n";
 			$archivecount++;
@@ -1898,10 +1958,11 @@ Usage: $self <mode>
 
   create
   update
+  status
   purge
   trim
   check
-  add <category/prgname> [<file> ...]
+  add [<category/prgname>] <file> [<file> ...]
   rm <category/prgname>
 
 For full documentation try:
@@ -1926,6 +1987,7 @@ for ($ARGV[0]) {
 	/check/  && do { check_mode(0);    };
 	/status/ && do { check_mode(1);    };
 	/bwlist/ && do { bwlist_mode();    };
+	#/slimjet_hack/ && do { $url_rewrite_hacks{'network/slimjet'}->('https://www.slimjetbrowser.com/release/slimjet_i386.tar.xz', '/tmp/slimjet.info'); exit 0;    };
 	usage();
 }
 
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