forked from cloudfoundry-attic/cf-release
/
whats_in_the_deploy.rb
executable file
·200 lines (165 loc) · 4.35 KB
/
whats_in_the_deploy.rb
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#!/usr/bin/env ruby
class SubmoduleLog
def initialize(submodule, url, sha1, sha2)
@submodule = submodule
@url = url
@sha1 = sha1
@sha2 = sha2
@commits = get_commits
end
def get_commits
short_log = Dir.chdir(@submodule) do
`git log #{@sha1}..#{@sha2} --pretty="%H|||%an|||%ad|||%s|||%bSPLITHERE"`
end
commit_chunks = short_log.split("SPLITHERE")
commits = []
commit_chunks.each do |chunk|
segments = chunk.split("|||")
commits << {
sha: segments[0],
author: segments[1],
date: segments[2],
subject: segments[3],
body: segments[4] ? segments[4].gsub("\n", "<br>") : ""
}
end
commits
end
def submodule_anchor
%Q{<a href="#{@url}/commits/#{@sha2}" target="_blank">#{@submodule}</a>}
end
def commit_anchor(sha)
%Q{<a href="#{@url}/commit/#{sha}" target="_blank">#{sha}</a>}
end
def comparison_anchor
%Q{<a href="#{@url}/compare/#{@sha1}...#{@sha2}" target="_blank">View comparison for range</a>}
end
def generate_html(f)
f << "<H2>#{submodule_anchor}</H2>"
f << "<H3>#{commit_anchor(@sha1[0..7])}..#{commit_anchor(@sha2[0..7])}</H3>"
f << "<H4>#{comparison_anchor}</H4>"
f << %Q{<div class="no-changes">No Changes</div>} if @commits.count == 0
@commits.each do |commit|
f << %Q{<div class="commit">}
f << %Q{<div class="sha">#{commit_anchor(commit[:sha])}</div>}
f << %Q{<div class="subject">#{commit[:subject]}</div>}
f << %Q{<div class="body">#{commit[:body]}</div>}
f << %Q{<div class="author">#{commit[:author]}</div>}
f << %Q{<div class="date">#{commit[:date]}</div>}
f << %Q{</div>}
end
end
end
class WhatsInTheDeploy
def initialize(sha1, sha2)
@submodules = find_submodules
@submodule_logs = []
@sha1 = sha1
@sha2 = sha2
end
def compare_submodules
@submodules.each do |submodule, url|
sub_sha1 = get_submodule_commit(@sha1, submodule)
sub_sha2 = get_submodule_commit(@sha2, submodule)
if sub_sha1 && sub_sha2
@submodule_logs << SubmoduleLog.new(submodule, url, sub_sha1, sub_sha2)
else
puts "Skipping #{submodule} (couldn't find one of the SHAs. This is probably a new submodule in the release.)"
end
end
end
def generate_html(path)
File.open(path, 'w') do |f|
f << %Q{<html><head><style>#{DATA.read}</style></head><body>}
f << %Q{<h1>Changes in deploy from #{@sha1} to #{@sha2}</h1>}
@submodule_logs.each do |submodule_log|
submodule_log.generate_html(f)
end
f << "</body></html>"
end
end
private
def find_submodules
submodules = {}
gitmodules = File.read('.gitmodules')
gitmodules.scan(/path = (.+)\n\s+url = (.+)\n/) do |match|
path = match[0]
url = match[1].chomp(".git")
if Dir.glob("#{path}/*").length > 0
submodules[path] = url
end
end
submodules
end
def get_submodule_commit(tree_identifier, submodule)
ls_tree_output = `git ls-tree #{tree_identifier} #{submodule}`
matches = /commit (.+)\s+#{submodule}/.match(ls_tree_output)
matches[1] if matches
end
end
if __FILE__ == $0
puts "Please provide the tag currently deployed to production:"
production_tag = gets.chomp
puts "Please provide the sha for the Release Candidate commit you'd like to compare to:"
rc_sha = gets.chomp
puts "#{production_tag}..#{rc_sha}"
whats_in_the_deploy = WhatsInTheDeploy.new(production_tag, rc_sha)
puts "Comparing submodules...."
whats_in_the_deploy.compare_submodules
puts "Generating HTML...."
output_path = ENV.fetch("WITD_OUT", "#{ENV["HOME"]}/Dropbox/product/WhatsInTheDeploy.html")
whats_in_the_deploy.generate_html(output_path)
puts "HTML Generated: #{output_path}"
`open #{output_path}`
end
__END__
body {
font-family: "helvetica neue";
font-size:14px;
}
h2 {
margin-bottom:0;
}
h3 {
margin-top:0;
}
a {
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
.no-changes {
margin:10px;
padding:10px;
background-color: #efe;
}
.commit {
margin:10px;
padding:10px;
background-color: #f5f5f5;
}
.commit:nth-child(odd) {
background-color: #ddd;
}
.sha {
margin-bottom:5px;
font-size:12px;
}
.sha a {
color:#777;
}
.subject {
font-weight:bold;
}
.body {
padding:10px;
font-size:;
}
.author {
font-style:italic;
}
.date {
color:#777;
font-size:12px;
}