discourse/lib/tasks/release_note.rake

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desc "generate a release note from the important commits"
task "release_note:generate", :tag do |t, args|
tag = args[:tag] || `git describe --tags --abbrev=0`.strip
bug_fixes = Set.new
new_features = Set.new
ux_changes = Set.new
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sec_changes = Set.new
`git log #{tag}..HEAD`.each_line do |comment|
next if comment =~ /^\s*Revert/
split_comments(comment).each do |line|
if line =~ /^FIX:/
bug_fixes << better(line)
elsif line =~ /^FEATURE:/
new_features << better(line)
elsif line =~ /^UX:/
ux_changes << better(line)
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elsif line =~ /^SECURITY:/
sec_changes << better(line)
end
end
end
puts "NEW FEATURES:", "-------------", "", new_features.to_a, ""
puts "BUG FIXES:", "----------", "", bug_fixes.to_a, ""
puts "UX CHANGES:", "-----------", "", ux_changes.to_a, ""
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puts "SECURITY CHANGES:", "-----------------", "", sec_changes.to_a, ""
end
def better(line)
line = remove_prefix(line)
line = escape_brackets(line)
line[0] = '\#' if line[0] == '#'
line[0] = line[0].capitalize
"- " + line
end
def remove_prefix(line)
line.gsub(/^(FIX|FEATURE|UX|SECURITY):/, "").strip
end
def escape_brackets(line)
line.gsub("<", "`<")
.gsub(">", ">`")
.gsub("[", "`[")
.gsub("]", "]`")
end
def split_comments(text)
text = normalize_terms(text)
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terms = ["FIX:", "FEATURE:", "UX:", "SECURITY:"]
terms.each do |term|
text = newlines_at_term(text, term)
end
text.split("\n")
end
def normalize_terms(text)
text = text.gsub(/(BUGFIX|FIX|BUG):/i, "FIX:")
text = text.gsub(/FEATURE:/i, "FEATURE:")
text = text.gsub(/UX:/i, "UX:")
end
def newlines_at_term(text, term)
if text.include?(term)
text = text.split(term).map{ |l| l.strip }.join("\n#{term} ")
end
text
end