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| | #!/usr/bin/env ruby
# Copyright (C) 2013-2015 all contributors <dtas-all@nongnu.org>
# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
#
# WARNING: totally unstable API, use dtas-ctl for scripting (but the protocol
# itself is also unstable, but better than this one probably).
require 'dtas/unix_client'
require 'shellwords'
def get_track_ids(c)
track_ids = c.req("tl tracks")
# we could get more, but SEQPACKET limits size...
track_ids = track_ids.split(/ /)
track_ids.shift
track_ids
end
def do_edit(c)
require 'dtas/edit_client'
require 'yaml'
require 'tempfile'
extend DTAS::EditClient
tmp = Tempfile.new(%w(dtas-tl-edit .txt))
tmp.binmode
tmp_path = tmp.path
orig = []
orig_idx = {}
get_track_ids(c).each_slice(128) do |track_ids|
res = c.req("tl get #{track_ids.join(' ')}")
res = Shellwords.split(res.sub!(/\A\d+ /, ''))
while line = res.shift
line.sub!(/\A(\d+)=/, '') or abort "unexpected line=#{line.inspect}\n"
track_id = $1.to_i
orig_idx[track_id] = orig.size
orig << track_id
tmp.write("#{Shellwords.escape(line)} =#{track_id}\n")
end
end
tmp.flush
ed = editor
# jump to the line of the currently playing track if using vi or vim
# Patches for other editors welcome: dtas-all@nongnu.org
if ed =~ /vim?\z/
cur = YAML.load(c.req('current'))
if tl = cur['tracklist']
if pos = tl['pos']
ed += " +#{pos + 1}"
end
end
end
# Run the editor and let the user edit!
system("#{ed} #{Shellwords.escape tmp_path}") or return
edit = []
edit_idx = {}
add = []
# editor may rename/link a new file into place
File.open(tmp_path) do |fp|
while line = fp.gets
line.chomp!
if line.sub!(/ =(\d+)\z/, '') # existing tracks
track_id = $1.to_i
if edit_idx[track_id] # somebody copy+pasted an existing line
add << [ File.expand_path(line), edit.last ]
else # moved line
edit_idx[track_id] = edit.size
edit << track_id
end
else # entirely new line
add << [ File.expand_path(line), edit.last ]
end
end
end
edit.each_with_index do |track_id, i|
oi = orig_idx[track_id] or warn("unknown track_id=#{track_id}") or next
next if oi == i # no change, yay!
prev_track_id = orig[i] or warn("unknown index at #{i}") or next
c.req("tl swap #{track_id} #{prev_track_id}")
orig_idx[track_id] = i
orig_idx[prev_track_id] = oi
orig[i] = track_id
orig[oi] = prev_track_id
end
orig.each do |track_id|
edit_idx[track_id] or c.req("tl remove #{track_id}")
end
add.reverse_each do |path, after_id|
cmd = %W(tl add #{path})
cmd << after_id.to_s if after_id
c.req(cmd)
end
ensure
tmp.close! if tmp
end
c = DTAS::UNIXClient.new
case cmd = ARGV[0]
when "cat"
get_track_ids(c).each do |track_id|
res = c.req("tl get #{track_id}")
res.sub!(/\A1 /, '')
print "#{res}\n"
end
when "addhead"
ARGV.shift
ARGV.reverse.each do |path|
path = File.expand_path(path)
res = c.req(%W(tl add #{path}))
print "#{path} #{res}\n"
end
when "addtail"
ARGV.shift
track_ids = get_track_ids(c)
last_id = track_ids.pop
ARGV.each do |path|
path = File.expand_path(path)
req = %W(tl add #{path})
req << last_id.to_s if last_id
res = c.req(req)
print "#{path} #{res}\n"
last_id = res if res =~ /\A\d+\z/
end
when "reto"
fixed = ARGV.delete("-F")
ignorecase = ARGV.delete("-i")
re = ARGV[1]
time = ARGV[2]
re = Regexp.quote(re) if fixed
re = ignorecase ? %r{#{re}}i : %r{#{re}}
get_track_ids(c).each do |track_id|
res = c.req("tl get #{track_id}")
res.sub!(/\A1 \d+=/, '')
if re =~ res
req = %W(tl goto #{track_id})
req << time if time
res = c.req(req)
puts res
exit(res == "OK")
end
end
warn "#{re.inspect} not found"
exit 1
when 'edit' then do_edit(c)
else
# act like dtas-ctl for now...
puts c.req([ "tl", *ARGV ])
end
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