From 892c02f11fc9c6b05570bf05f846dd22146826d6 Mon Sep 17 00:00:00 2001
From: Dan Fandrich <dan@coneharvesters.com>
Date: Thu, 14 Jan 2016 02:31:40 +0100
Subject: Add scanning of build logs looking for known bugs

These can be displayed along with appropriate hyperlinks for more info
on the results page.
---
 autobuild.rb | 32 ++++++++++++++++++++++++++++++--
 bugscan.rb   | 13 +++++++++++++
 2 files changed, 43 insertions(+), 2 deletions(-)
 create mode 100644 bugscan.rb

diff --git a/autobuild.rb b/autobuild.rb
index d764375..81b69c9 100755
--- a/autobuild.rb
+++ b/autobuild.rb
@@ -3,6 +3,7 @@
 require 'fileutils'
 require 'rubygems'
 require 'sqlite3'
+require_relative 'bugscan'
 
 def create_tables(db)
     #db.execute "CREATE TABLE IF NOT EXISTS Packages(Id INTEGER PRIMARY KEY, Name TEXT, Version TEXT, Release TEXT, UNIQUE (Name, Version, Release))"
@@ -134,7 +135,30 @@ def find_attributes(build_dir)
     attr_line = attr_line.strip()
     return attr_line
 end
-    
+
+# Find interesting things about the build, indicating a known bug
+def find_bug_matches(build_dir)
+    build_files = Dir.glob(build_dir + '/build.*.log')
+    build_file = build_files[0]
+    if build_file then
+        # Big regex that matches everything we're looking for
+        # Regexp.union doesn't work as it doesn't bracket each regex
+        any_bug_re = Regexp.new('(' + $bug_matches.keys.join(')|(') + ')')
+        regex_list = $bug_matches.keys.map{|key| key.to_s}
+
+        # loop over file
+        File.open(build_file).each_line do |li|
+            if any_bug_re.match(li) then
+                # loop over individual regexes to find the matching one
+                regex_list.each do |regex|
+                   return $bug_matches[regex] if (/#{regex}/.match(li))
+                end
+            end
+        end
+        return ''
+    end
+end
+
 def insert_run(db, status_file)
     t_start = Date.parse(File.basename(File.dirname(status_file))).strftime('%s')
     puts "Inserting data for run #{t_start} (#{status_file})"
@@ -163,7 +187,11 @@ def insert_run(db, status_file)
                 puts name
             end
             # Store some interesting attributes about the build
-            attr = find_attributes(File.dirname(status_file) + '/' + name + '-' + version + '-' + release + '.src.rpm')
+            log_dir = File.dirname(status_file) + '/' + name + '-' + version + '-' + release + '.src.rpm'
+            attr = find_attributes(log_dir)
+            bug_attr = find_bug_matches(log_dir)
+            attr = attr + ' ' + bug_attr if bug_attr
+
             #puts "\t\t\tAttributes: " + attr
             if attr then
                 begin
diff --git a/bugscan.rb b/bugscan.rb
new file mode 100644
index 0000000..4c6a2b0
--- /dev/null
+++ b/bugscan.rb
@@ -0,0 +1,13 @@
+# Regexes to match against the build log
+$bug_matches = {
+    "com\\.sun\\.tools\\.javac\\.Main is not on the classpath" => "err_javacmissing", # e.g. gnu-getopt
+    "Unable to find a javac compiler" => "err_javacmissing", # e.g. fmj
+    "role: org\\.apache\\.maven\\.Maven" => "err_maven", # e.g. XmlSchema
+    "required file './depcomp' not found" => "err_depcomp", # e.g. admesh
+    "depcomp: No such file or directory" => "err_depcomp", # e.g. asteroids3D
+    "aclocal-1.\\d+: command not found" => "err_oldautoconf", # e.g. argtable2
+    "Empty %files file.*\\.debugfiles.list" => "err_debuglist", # e.g. kon2
+    "Empty %files file.*\\.lang" => "err_findlang",
+    "Installed \\(but unpackaged\\) file\\(s\\) found" => "err_unpackagedfile", # e.g. flvtool2
+    "^    File not found:" => "err_packagedfilemissing",
+}
-- 
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