Change Changlog generator to comply with opsi and debian changelog format

libexec/gitlog-to-deblog.rb

@@ -0,0 +1,91 @@
+#!/usr/bin/ruby
+require 'erb'
+
+# Determines package name from the origin url on github. It's hackish, but it
+# works (mostly).
+def pkgname
+  originurl = `git config --get remote.origin.url`.strip
+  _, pkgname = originurl.match(/\/([a-z0-9\-_]+).git/i).to_a
+  pkgname
+end
+
+# Accepts a hash of git log data and returns a properly formatted debian 
+# changelog entry.
+def debchangelog(logdata)
+  template = <<-EOF
+<%=PKGNAME%> (<%=logdata[:tag]%>) unstable; urgency=low
+
+  * <%=logdata[:subj]%>
+
+ -- <%=logdata[:name]%>  <%=logdata[:date]%>
+
+EOF
+  ERB.new(template).result(binding)
+end
+
+# Checks to see if the repository has any tags already.
+def repo_has_tag?
+  `git describe --tags 2>&1`
+  return ($? == 0)? true : false
+end
+
+# If the repository has no tags, we need to make one so we can get some kind 
+# of versioning number for the changelog.
+def make_temporary_tag
+  firstcommit = `git log --format=%H | tail -1`.strip
+  `git tag #{TEMPTAG} #{firstcommit}`
+end
+
+# Removes the tag we added if the repo had no tags.
+def cleanup_temporary_tag
+  `git tag -d #{TEMPTAG}`
+end
+
+# Removes jenkins build tags (if they exist)
+def remove_jenkins_tags
+  IO.popen("git tag -l 'jenkins-*'").readlines.each do |tag|
+    `git tag -d #{tag}`
+  end
+end
+
+# Get the name of this repository
+PKGNAME = pkgname
+
+# Name for the temporary tag (only used if the repository has no tags)
+TEMPTAG = 'GOPSI'
+#TEMPTAG = pkgname
+
+remove_jenkins_tags
+
+if repo_has_tag?
+  dotagcleanup = false
+else
+  dotagcleanup = true
+  make_temporary_tag
+end
+
+# Loop through the git log output and grab four lines at a time to parse.
+gitlogcmd = %{git log --pretty=format:'hash: %H%nname: %aN <%aE>%ndate: %cD%nsubj: %s'}
+IO.popen(gitlogcmd).readlines.each_slice(4) do |chunk|
+
+  temphash = {}
+
+  # split each line on the first colon and use what's on the left as the 
+  # symbols within the hash
+  chunk.map { |line| line.split(/: /,2) }.each do |type, data|
+    temphash[type.to_sym] = data.strip
+  end
+
+  # dig up the most recent tag which contains the commit
+  temphash[:tag] = `git describe --tags #{temphash[:hash]} 2>/dev/null`.strip
+  if $? != 0
+    dotagcleanup = true
+    make_temporary_tag
+    temphash[:tag] = `git describe --tags #{temphash[:hash]}`.strip
+  end
+
+  puts debchangelog(temphash)
+end
+
+# If we added a temporary tag, let's remove it
+cleanup_temporary_tag