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omglog for linux
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#!/usr/bin/env ruby | |
# coding: utf-8 | |
require 'rb-inotify' | |
CLEAR = "\n----\n" | |
YELLOW, BLUE, GREY, HIGHLIGHT = '0;33', '0;34', '0;90', '1;30;47' | |
SHORTEST_MESSAGE = 12 | |
LOG_CMD = %{git log --all --date-order --graph --color --pretty="format: \2%h\3\2%d\3\2 %an, %ar\3\2 %s\3"} | |
LOG_REGEX = /(.*)\u0002(.*)\u0003\u0002(.*)\u0003\u0002(.*)\u0003\u0002(.*)\u0003/ | |
def omglog | |
rows, cols = `tput lines; tput cols`.scan(/\d+/).map(&:to_i) | |
`#{LOG_CMD} -#{rows}`.tap {|log| | |
print CLEAR + log.split("\n")[0...(rows - 1)].map {|l| | |
commit = l.scan(LOG_REGEX).flatten.map(&:to_s) | |
commit.any? ? render_commit(commit, cols) : l | |
}.join("\n") + "\n" + "\e[#{GREY}mupdated #{Time.now.strftime("%a %H:%M:%S")}\e[m ".rjust(cols + 8) | |
} | |
end | |
def render_commit commit, cols | |
row_highlight = commit[2][/[^\/]HEAD\b/] ? HIGHLIGHT : YELLOW | |
[nil, row_highlight, BLUE, '', GREY].map {|c| "\e[#{c}m" if c }.zip( | |
arrange_commit(commit, cols) | |
).join + "\e[m" | |
end | |
def arrange_commit commit, cols | |
commit[0].chomp!(' ') | |
commit[-2].sub!(/(\d+)\s(\w)[^\s]+ ago/, '\1\2 ago') | |
room = [cols - [commit[0].gsub(/\e\[[\d;]*m/, ''), commit[1..-2]].flatten.map(&:length).inject(&:+), SHORTEST_MESSAGE].max | |
commit.tap {|commit| | |
commit[3, 0] = if commit[-1].length > room | |
commit.pop[0...(room - 1)] + '…' | |
else | |
commit.pop.ljust(room) | |
end | |
} | |
end | |
def on_change &block | |
INotify::Notifier.new.tap do |notifier| | |
notifier.watch('.git', :modify, :recursive, &block) | |
['TERM', 'INT', 'QUIT'].each do |signal| | |
trap(signal) do | |
notifier.stop | |
exit(0) | |
end | |
end | |
notifier.run | |
end | |
end | |
abort("Run omglog at the root of the git repo you'd like to watch.") if (ARGV & %w[-h --help help]).any? | |
abort("The current directory doesn't look like the root of a git repo.") unless File.directory?('.git') | |
omglog | |
on_change { omglog } |
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