truckle/cave_commands/configs

400 lines
8.3 KiB
Ruby
Executable file

#!/usr/bin/env ruby
Main = self
public
require 'Paludis'
require 'getoptlong'
require 'pathname'
require 'shellwords'
require 'readline'
begin
require 'irb-pager'
rescue LoadError
STDERR.puts <<EOF
Loading IRB::Pager failed. Please install it first:
sudo gem install irb-pager
EOF
raise
end
include Paludis
class Object
def with &block
yield self
end
def self.with &block
yield self
end
end
def path_cmd cmd
ENV['PATH'].split( ':').each do |dir|
dir = Pathname.new dir
next unless dir.directory?
dir.each_child {|f| return f if cmd == f.basename.to_s and f.file? }
end
nil
end
def system *a
Kernel.system *a.map(&:to_s)
end
class UsageError <Exception
end
class NoSelection <UsageError
def initialize x = nil
super( x || 'Select a file first.')
end
end
if cmd = ENV['ECLECTIC_CONFIG_DIFF_COMMAND']
def diff( f1, f2) system "#{cmd} #{Shellwords.escape f1} #{Shellwords.escape f2}" end
elsif path_cmd 'git'
def diff( f1, f2) system *%w[git --no-pager --git-dir=: diff --color-words], f1, f2 end
elsif path_cmd 'colordiff'
def diff( f1, f2) system 'colordiff', f1, f2 end
else
def diff( f1, f2) system 'diff', f1, f2 end
end
Log.instance.with do |nst|
nst.log_level = LogLevel::Warning
nst.program_name = $0
end
env = EnvironmentFactory.instance.create ''
dirs = Pathname.new( env.fetch_repository( 'installed')['location'].parse_value).join( '.cache', 'all_CONFIG_PROTECT').each_line.map {|l| Pathname.new l.chomp }
def find_cfgs dirs, &exe
block_given? or return to_enum( __method__, dirs)
dirs.each do |dir|
dir.find do |e|
yield e if /^\._cfg...._/ =~ e.basename.to_s and e.file?
end if dir.exist?
end
end
def accept_cfg config, update
now = Time.now
now = Time.at now+1 while (backup = config.dirname + "._cfg_backuped_#{now.strftime '%FT%T'}_#{config.basename}").exist?
puts "#{config}: backup to [#{backup}]"
config.rename backup
puts "#{config}: accept [#{update}]"
update.rename config
end
def reject_cfg config, update
now = Time.now
now = Time.at now+1 while (backup = config.dirname + "._cfg_rejected_#{now.strftime '%FT%T'}_#{config.basename}").exist?
puts "#{config}: reject [#{update}] backup to [#{backup}]"
update.rename backup
end
def list_keys cmds
len = cmds.keys.map do |cmd|
cmd.map {|c| c.sub( /(?<!\\)\\/, '').gsub "\\\\", "\\" }.join( ', ').length
end.max+2
cmds.each do |cmd, text|
l = cmd.map {|c| c.sub( /(?<!\\)\\/, '').gsub "\\\\", "\\" }.join( ', ').length
cmd = cmd.map do |c|
c.sub( /(?<!\\)\\([^\\])/, "\e[1m\\1\e[0m").gsub "\\\\", "\\"
end.join ', '
printf " [%s]%s%s\n", cmd, ' '*(len-l), text
end
end
def list_cfgs selected, list
keys = {}
list.keys.sort.map do |i|
file = list[i]
keys[["\\#{i}"]] = (selected == file ? '* ' : '')+file.to_s
end
list_keys keys
end
class Commands < Hash
class Builder
def initialize cmds
@cmds = cmds
end
def self.build cmds, &run
r = new cmds
r.instance_eval &run
r
end
def help text = nil
@help = text
end
def on *names, &run
options = names.last.is_a?( Hash) ? names.pop.dup : {}
names = names.flatten.compact
if names.empty?
@fallback_cmd = Cmd.new nil, @help, run
else
cmd = Cmd.new names, @help, &run
names.each do |name|
name = name.to_s
if /\\(.)/ =~ name
@cmds[$1.to_sym] = cmd
name = name.gsub /\\/, ''
end
@cmds[name.to_sym] = cmd
end
end
ensure
@help = nil
end
end
class Cmd <Proc
attr_reader :names, :help
def initialize names, help, &exe
@names, @help = names, help
super &exe
end
end
class CommandError < Exception
end
class ExpectingCommandError < CommandError
def initialize *args
args = ['Command expected'] if args.empty?
super *args
end
end
class UnknownCommandError < CommandError
def initialize *args
args = ['This Command i do not know'] if args.empty?
super *args
end
end
attr_accessor :fallback_cmd
def self.new &builder
r = super()
Builder.build r, &builder
r
end
def === x
include?( x.to_sym) or super
end
def list_keys
h = {}
self.values.map {|c| h[c.names] = c.help }
Main::list_keys( h)
end
end
class FileList
attr_reader :found
def initialize found
@found = found
end
def list
return @list if @list
list = {}
found.each_with_index do |(file, cfgs), i|
i += 1
list[i] = file
cfgs.sort!
end
@list = list
end
end
class UI
attr_accessor :need_to_print
attr_reader :selected, :cmds, :list, :found, :dirs, :ignore_list
def selected= x
@selected, @need_to_print = x, !!x
end
def initialize cmds, dirs
@ignore_list = []
@cmds, @dirs = cmds, dirs
end
def prepare
@need_to_print = false
@found = Hash.new {|h,k| h[k] = [] }
@list = {}
find_cfgs( dirs).each do |cfg|
conf = cfg.dirname + cfg.basename.to_s.sub( /^\._cfg...._/, '')
next if ignore_list.include? conf
found[conf] += [cfg]
end
if found.empty?
puts "No files to update."
exit 0
end
found.each_with_index do |(file, cfgs), i|
i += 1
list[i] = file
cfgs.sort!
end
self.selected = nil unless found.has_key? selected
end
def run
prepare
prompt.chomp.split( /\s+/).each &method( :execute)
instance_eval &cmds[:diff] if need_to_print
rescue Interrupt
rescue UsageError
puts $!.message
end
def prompt
prompt =
if selected
"(cfg:\e[1m#{selected}\e[0m)# "
else
puts
list_cfgs selected, list
puts
"(select?)# "
end
Readline.completion_proc = lambda do |str|
reg = /^#{Regexp.quote str}/
list.keys.select {|i| reg =~ i.to_s } +
found.keys.grep( reg) +
cmds.keys.grep( reg) +
found.keys.select {|f| reg =~ f.basename.to_s }
end
line = Readline.readline( prompt, true) or exit
Readline::HISTORY.pop if /^\s*$/ =~ line or (Readline::HISTORY.length >= 2 && Readline::HISTORY[-2] == line)
line
end
def execute x
case x
when /^\d+$/
m = list[x.to_i]
raise UsageError, "Unknown index #{x}" unless m
self.selected = m
when cmds
instance_eval &cmds[x.to_sym]
else
m = Pathname.new x
unless (f = found[m]).empty?
self.selected = m
else
raise UsageError, "Unknown command #{x}"
end
end
end
end
auto_action_file = Pathname.new '/etc/paludis/configs_auto_action'
cmds = Commands.new do
help 'Help'
on %w[\help \?] do
puts
cmds.list_keys
puts
end
help 'Displays difference of selected file'
on '\diff' do
raise NoSelection unless selected
puts
IRB::Pager::pager( pager: 'less -R') { diff selected, found[selected][0] }
puts
self.need_to_print = false
end
help 'List all files need updates'
on '\list' do
list_cfgs selected, list if selected
end
help 'Accepts selected file'
on %w[\accept \yes] do
raise NoSelection unless selected
accept_cfg selected, found[selected][0]
selected = nil
end
help 'Rejects selected file'
on %w[\reject \no] do
raise NoSelection unless selected
reject_cfg selected, found[selected][0]
selected = nil
end
help 'Ignore selected file for this session (do not anything with this file)'
on %w[\later \ignore] do
raise NoSelection unless selected
ignore_list.push selected
self.need_to_print = false
self.selected = nil
end
help 'Quit'
on %w[\quit \exit] do
exit 0
end
on 'auto-action' do
unless auto_action_file.exist?
raise UsageError, "No config for auto-action found: #{auto_action_file}"
end
auto_action_file.each_line do |line|
next if /^\s*#/ =~ line
action, file = line.chomp!.split( "\t", 2)
file = Pathname.new file
if found.has_key? file
case action
when *%w[a accept]
accept_cfg file, found[file][-1]
found[file][0...-1].each {|f| reject_cfg file, f }
when *%w[r reject]
found[file].each {|f| reject_cfg file, f }
end
end
end
end
end
ui = UI.new cmds, dirs
opts = GetoptLong.new(
[ '-h', '--help', GetoptLong::NO_ARGUMENT ],
[ '-A', '--auto-action', GetoptLong::OPTIONAL_ARGUMENT ]
)
opts.ordering = GetoptLong::REQUIRE_ORDER
opts.each do |opt, arg|
case opt
when '-h'
puts <<EOF
Usage: #{ENV['cave']||'cave'} #{File.basename $0} [-h] [-A]
Without options, interactive user interface will be started
Options:
-A, --auto-action[=file] runs automatical actions from file or #{auto_action_file}
EOF
exit
when '-A'
auto_action_file = Pathname.new arg if arg and not arg.empty?
ui.prepare
ui.execute 'auto-action'
exit
end
end
loop { ui.run }