dtas.git  about / heads / tags
duct tape audio suite for *nix
blob b682e2bd4aa6369a844da74a0fb709f290738dd2 4023 bytes (raw)
$ git show 0.12.x-stable:bin/dtas-tl	# shows this blob on the CLI

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
 
#!/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

git clone git://80x24.org/dtas.git
git clone https://80x24.org/dtas.git