Initial Commit, moving from dev-private and removing private stuff
diff --git a/monitor/bot-status b/monitor/bot-status
new file mode 100755
index 0000000..f2de0ea
--- /dev/null
+++ b/monitor/bot-status
@@ -0,0 +1,244 @@
+#!/usr/bin/env perl
+
+# This script greps the JSON files for the buildbots on
+# the LLVM official build master by name and prints an
+# HTML page with the links to the bots and the status.
+#
+# Multiple masters can be used, as well as multiple groups of bots
+# and multiple bots per group, all in a json file. See linaro.json
+# in this repository to have an idea how the config file is.
+#
+# Module JSON needs to be installed, either from cpan or packages.
+
+push @INC, `dirname $0`;
+
+use strict;
+use warnings;
+# Core modules
+use File::Temp qw/tempfile/;
+use File::Copy;
+# This is not part of core, but you really *need* it.
+use JSON;
+# This can be replaced by `wget/curl`
+use LWP;
+use LWP::UserAgent;
+# We don't have DateTime everywhere...
+my $date = `date`;
+# DEBUG
+my $DEBUG = 0;
+
+######################################################### Initialisation
+# Option checking
+my $syntax = "$0 config-file.json output-file.html\n";
+die $syntax unless (scalar @ARGV == 2);
+# Read config file
+my ($config, $error) = &read_file($ARGV[0]);
+die $error if ($error);
+($config, $error) = &decode($config);
+die $error if ($error);
+
+# Setup HTML output file
+my $output = $ARGV[1];
+my ($temp, $tempname) = tempfile();
+
+
+######################################################### Main Logic
+# Get status for all bots
+my %bot_cache;
+my $fail = 0;
+foreach my $server (@$config) {
+  next if (defined $server->{'ignore'} and $server->{'ignore'} eq "true");
+  my ($BASE_URL, $BUILDER_URL, $BUILD_URL) =
+     ($server->{'base_url'}, $server->{'builder_url'}, $server->{'build_url'});
+  &debug("Parsing server ".$server->{'name'}."...\n");
+  foreach my $builder (@{$server->{'builders'}}) {
+    &debug("  Parsing builder ".$builder->{'name'}."...\n");
+    foreach my $bot (@{$builder->{'bots'}}) {
+      &debug("    Parsing bot ".$bot->{'name'}."...\n");
+      next if defined $bot_cache{$bot->{'name'}};
+      my $status = &get_status($bot->{'name'}, $BASE_URL, $BUILDER_URL, $BUILD_URL);
+      if (!defined $bot->{'ignore'} or $bot->{'ignore'} ne "true") {
+        $fail = 1 if ($status->{'fail'});
+      } else {
+        &debug("      Ignoring...\n");
+      }
+      &debug($status->{'fail'} ? "      FAIL\n" : "      PASS\n");
+      $bot_cache{$bot->{'name'}} = $status;
+    }
+  }
+}
+
+# Dump all servers / bots
+foreach my $server (@$config) {
+  next if (defined $server->{'ignore'} and $server->{'ignore'} eq "true");
+  my ($BASE_URL, $BUILDER_URL, $BUILD_URL) =
+     ($server->{'base_url'}, $server->{'builder_url'}, $server->{'build_url'});
+  # Favicon
+  my $favicon = $fail ? "fail.ico" : "ok.ico";
+  print $temp "<link rel=\"shortcut icon\" href=\"$favicon\" type=\"image/x-icon\"/>\n";
+  # Header
+  print $temp "<table cellspacing=1 cellpadding=2>\n";
+  print $temp "<tr><td colspan=5>&nbsp;</td><tr>\n";
+  print $temp "<tr><th colspan=5>$server->{'name'} @ $date</td><tr>\n";
+  ## Main loop
+  foreach my $builder (@{$server->{'builders'}}) {
+    print $temp "<tr><td colspan=5>&nbsp;</td><tr>\n";
+    print $temp "<tr><th colspan=5>$builder->{'name'}</td><tr>\n";
+    print $temp "<tr><th>Buildbot</th><th>Status</th><th>Comments</th>".
+                "<th>Build #</th><th>Commits</th></tr>\n";
+    foreach my $bot (@{$builder->{'bots'}}) {
+      print $temp "<tr>\n";
+      my $status = $bot_cache{$bot->{'name'}};
+      my $url = "$BASE_URL/$BUILDER_URL/$bot->{'name'}";
+      print $temp "  <td><a href='$url'>$bot->{'name'}</a></td>\n";
+      if ($status->{'fail'}) {
+        print $temp "  <td><font color='red'>FAIL</font></td>\n".
+                    "  <td>$status->{'fail'}</td>\n";
+      } else {
+        print $temp "  <td><font color='green'>PASS</font></td>\n".
+                    "  <td>&nbsp;</td>\n";
+      }
+      if (defined $status->{'build'} and
+          defined $status->{'from'}  and
+          defined $status->{'to'}) {
+        print $temp "  <td>$status->{'build'}</td>\n".
+                    "  <td>$status->{'from'}-$status->{'to'}</td>\n";
+      } else {
+        print $temp "  <td colspan=2>&nbsp;</td>\n";
+      }
+      print $temp "</tr>\n";
+    }
+  }
+  # Footer
+  print $temp "</table>\n";
+}
+close $temp;
+
+# Move temp to main (atomic change)
+move($tempname, $output);
+exit;
+
+######################################################### Subs
+
+# GET STATUS: get the status of an individual bot
+# (botname, base url, builder url, build url) -> (status)
+sub get_status() {
+  my ($bot, $BASE_URL, $BUILDER_URL, $BUILD_URL) = @_;
+  my ($err, $contents, $json);
+  my %status;
+
+  # Get buildbot main JSON
+  ($contents, $err) = wget("$BASE_URL/json/$BUILDER_URL/$bot");
+  $status{'fail'} = $err;
+  return \%status if $err;
+  ($json, $err) = decode($contents);
+  $status{'fail'} = $err;
+  return \%status if $err;
+
+  # Find recent builds
+  my $cached_builds = scalar @{$json->{'cachedBuilds'}};
+  my $running_builds = scalar @{$json->{'currentBuilds'}};
+  my $last_build = $json->{'cachedBuilds'}[$cached_builds - $running_builds - 1];
+  return \%status if (not defined $last_build);
+
+  # Get most recent build
+  ($contents, $err) = wget("$BASE_URL/json/$BUILDER_URL/$bot/$BUILD_URL/$last_build");
+  $status{'fail'} = $err;
+  return \%status if $err;
+  ($json, $err) = decode($contents);
+  $status{'fail'} = $err;
+  return \%status if $err;
+
+  # Build number
+  $status{'build'} = $json->{'number'};
+
+  # Status of the last build
+  # "text" : [ "build", "successful" ],
+  # "text" : [ "failed", "svn-llvm" ],
+  my $failed = 0;
+  foreach (@{$json->{'text'}}) {
+    $status{'fail'} .= $_." " if ($failed);
+    $failed = 1 if (/failed|exception/);
+  }
+  $status{'fail'} =~ s/ $//;
+
+  # Commit range
+  # [
+  #   'revision',
+  #   '238202',
+  #   'Build'
+  # ],
+  my $max = 0;
+  foreach (@{$json->{'properties'}}) {
+    if ($_->[0] eq 'revision') {
+      $max = $_->[1];
+      last;
+    }
+  }
+  # Min is in the changes' section
+  my $min = $max;
+  foreach (@{$json->{'sourceStamp'}->{'changes'}}) {
+    my $commit = $_->{'revision'};
+    $min = $commit if ($commit < $min);
+  }
+  $status{'from'} = $min;
+  $status{'to'} = $max;
+
+  return \%status;
+}
+
+# WGET: uses LWP to get an URL, returns contents (or error).
+# (url) -> (contents, error)
+sub wget() {
+  my ($url) = @_;
+  my ($contents, $error) = ("", "");
+
+  my $ua = LWP::UserAgent->new;
+  $ua->agent("LLVM BotMonitor/0.1");
+  my $req = HTTP::Request->new(GET => $url);
+  my $res = $ua->request($req);
+
+  if ($res->is_success) {
+    $contents = $res->content;
+  } else {
+    $error = $res->status_line;
+  }
+  return ($contents, $error);
+}
+
+# READ FILE: Reads a local file, returns contents
+# (filename) -> (contents)
+sub read_file() {
+  my ($file) = @_;
+  my ($contents, $error) = ("", "");
+  if (open FH, $file) {
+    while (<FH>) { $contents .= $_; }
+    close FH;
+  } else {
+    $error = "Can't open config file $file: $!";
+  }
+  return ($contents, $error);
+}
+
+# DECODE: Reads contents, returns JSON output (or error)
+# (contents) -> (JSON, error)
+sub decode() {
+  my ($contents) = @_;
+  my ($json, $error) = ("", "");
+  eval { $json = decode_json($contents); };
+  if ($@) {
+    if ($DEBUG) {
+      $error = $@;
+    } else {
+      $error = "JSON error";
+    }
+  }
+  return ($json, $error);
+}
+
+# DEBUG: Prints debug messages if debug enabled
+# (msg) -> ()
+sub debug () {
+  my ($msg) = @_;
+  print STDERR $msg if ($DEBUG);
+}