brew/Library/Homebrew/dev-cmd/release-notes.rb
2020-12-28 11:34:29 -05:00

81 lines
2.6 KiB
Ruby

# typed: true
# frozen_string_literal: true
require "cli/parser"
module Homebrew
extend T::Sig
module_function
sig { returns(CLI::Parser) }
def release_notes_args
Homebrew::CLI::Parser.new do
usage_banner <<~EOS
`release-notes` [<options>] [<previous_tag>] [<end_ref>]
Print the merged pull requests on Homebrew/brew between two Git refs.
If no <previous_tag> is provided it defaults to the latest tag.
If no <end_ref> is provided it defaults to `origin/master`.
If `--markdown` and a <previous_tag> are passed, an extra line containing
a link to the Homebrew blog will be adding to the output. Additionally,
a warning will be shown if the latest minor release was less than one month ago.
EOS
switch "--markdown",
description: "Print as a Markdown list."
max_named 2
end
end
def release_notes
args = release_notes_args.parse
previous_tag = args.named.first
if previous_tag.present?
most_recent_major_minor_tag = previous_tag.sub(/\d+$/, "0")
one_month_ago = Date.today << 1
previous_tag_date = Date.parse Utils.popen_read(
"git", "-C", HOMEBREW_REPOSITORY, "log", "-1", "--format=%aI", most_recent_major_minor_tag
)
opoo "The latest major/minor release was less than one month ago." if previous_tag_date > one_month_ago
end
previous_tag ||= Utils.popen_read(
"git", "-C", HOMEBREW_REPOSITORY, "tag", "--list", "--sort=-version:refname"
).lines.first.chomp
odie "Could not find any previous tags!" unless previous_tag
end_ref = args.named.second || "origin/master"
[previous_tag, end_ref].each do |ref|
next if quiet_system "git", "-C", HOMEBREW_REPOSITORY, "rev-parse", "--verify", "--quiet", ref
odie "Ref #{ref} does not exist!"
end
output = Utils.popen_read(
"git", "-C", HOMEBREW_REPOSITORY, "log", "--pretty=format:'%s >> - %b%n'", "#{previous_tag}..#{end_ref}"
).lines.grep(/Merge pull request/)
output.map! do |s|
s.gsub(%r{.*Merge pull request #(\d+) from ([^/]+)/[^>]*(>>)*},
"https://github.com/Homebrew/brew/pull/\\1 (@\\2)")
end
if args.markdown?
output.map! do |s|
/(.*\d)+ \(@(.+)\) - (.*)/ =~ s
"- [#{Regexp.last_match(3)}](#{Regexp.last_match(1)}) (@#{Regexp.last_match(2)})"
end
end
$stderr.puts "Release notes between #{previous_tag} and #{end_ref}:"
if args.markdown? && args.named.first
puts "Release notes for major and minor releases can be found in the [Homebrew blog](https://brew.sh/blog/)."
end
puts output
end
end