Class: Tb::Cmd::Ls

Inherits:
Object
  • Object
show all
Defined in:
lib/tb/cmd_ls.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(y, opts) ⇒ Ls

Returns a new instance of Ls.



73
74
75
76
77
 
# File 'lib/tb/cmd_ls.rb', line 73

def initialize(y, opts)
  @y = y
  @opts = opts
  @fail = false
end

Instance Attribute Details

#fail ⇒ Object (readonly)

Returns the value of attribute fail.



78
79
80
 
# File 'lib/tb/cmd_ls.rb', line 78

def fail
  @fail
end

Instance Method Details

#ls_dir(dir, st) ⇒ Object 



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
 
# File 'lib/tb/cmd_ls.rb', line 98

def ls_dir(dir, st)
  begin
    entries = Dir.entries(dir)
  rescue SystemCallError
    @fail = true
    warn "tb: #{$!}: #{dir}"
    return
  end
  entries.map! {|filename| real_pathname_string(filename) }
  entries = entries.sort_by {|filename| Tb::Func.smart_cmp_value(filename) }
  if @opts[:a] || @opts[:A]
    entries1, entries2 = entries.partition {|filename| /\A\./ =~ filename }
    entries0, entries1 = entries1.partition {|filename| filename == '.' || filename == '..' }
    entries0.sort!
    if @opts[:A]
      entries = entries1 + entries2
    else
      entries = entries0 + entries1 + entries2
    end
  else
    entries.reject! {|filename| /\A\./ =~ filename }
  end
  if !@opts[:R]
    entries.each {|filename|
      ls_file(dir + filename, nil)
    }
  else
    dirs = []
    entries.each {|filename|
      path = dir + filename
      st2 = ls_get_stat(path)
      next if !st2
      if filename == '.' || filename == '..'
        if dir.to_s != '.'
          path = Pathname(dir.to_s + "/" + filename)
        end
        ls_file(path, st2)
      elsif st2.directory?
        dirs << [path, st2]
      else
        ls_file(path, st2)
      end
    }
    dirs.each {|path, st2|
      ls_file(path, st2)
      ls_dir(path, st2)
    }
  end
end

#ls_file(path, st) ⇒ Object 



148
149
150
151
152
153
154
155
156
157
158
 
# File 'lib/tb/cmd_ls.rb', line 148

def ls_file(path, st)
  if 0 < @opts[:l]
    if !st
      st = ls_get_stat(path)
      return if !st
    end
    @y.yield ls_long_info(path, st)
  else
    @y.yield({'filename' => path.to_s})
  end
end

#ls_get_stat(path) ⇒ Object 



160
161
162
163
164
165
166
167
168
169
 
# File 'lib/tb/cmd_ls.rb', line 160

def ls_get_stat(path)
  begin
    st = path.lstat
  rescue SystemCallError
    @fail = true
    warn "tb: #{$!}: #{path}"
    return nil
  end
  st
end

#ls_info_atime(path, st) ⇒ Object 



252
253
254
255
256
257
258
 
# File 'lib/tb/cmd_ls.rb', line 252

def ls_info_atime(path, st)
  if 1 < @opts[:l]
    st.atime.iso8601(9)
  else
    st.atime.iso8601
  end
end

#ls_info_blksize(path, st) ⇒ Object 



193
 
# File 'lib/tb/cmd_ls.rb', line 193

def ls_info_blksize(path, st) st.blksize end

#ls_info_blocks(path, st) ⇒ Object 



194
 
# File 'lib/tb/cmd_ls.rb', line 194

def ls_info_blocks(path, st) st.blocks end

#ls_info_ctime(path, st) ⇒ Object 



268
269
270
271
272
273
274
 
# File 'lib/tb/cmd_ls.rb', line 268

def ls_info_ctime(path, st)
  if 1 < @opts[:l]
    st.ctime.iso8601(9)
  else
    st.ctime.iso8601
  end
end

#ls_info_dev(path, st) ⇒ Object 



185
 
# File 'lib/tb/cmd_ls.rb', line 185

def ls_info_dev(path, st) sprintf("0x%x", st.dev) end

#ls_info_filemode(path, st) ⇒ Object 



196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
 
# File 'lib/tb/cmd_ls.rb', line 196

def ls_info_filemode(path, st)
  entry_type =
    case st.ftype
    when "file" then '-'
    when "directory" then 'd'
    when "characterSpecial" then 'c'
    when "blockSpecial" then 'b'
    when "fifo" then 'p'
    when "link" then 'l'
    when "socket" then 's'
    when "unknown" then '?'
    else '?'
    end
  m = st.mode
  sprintf("%s%c%c%c%c%c%c%c%c%c",
    entry_type,
    (m & 0400 == 0 ? ?- : ?r),
    (m & 0200 == 0 ? ?- : ?w),
    (m & 0100 == 0 ? (m & 04000 == 0 ? ?- : ?S) :
                     (m & 04000 == 0 ? ?x : ?s)),
    (m & 0040 == 0 ? ?- : ?r),
    (m & 0020 == 0 ? ?- : ?w),
    (m & 0010 == 0 ? (m & 02000 == 0 ? ?- : ?S) :
                     (m & 02000 == 0 ? ?x : ?s)),
    (m & 0004 == 0 ? ?- : ?r),
    (m & 0002 == 0 ? ?- : ?w),
    (m & 0001 == 0 ? (m & 01000 == 0 ? ?- : ?T) :
                     (m & 01000 == 0 ? ?x : ?t)))
end

#ls_info_filename(path, st) ⇒ Object 



276
277
278
 
# File 'lib/tb/cmd_ls.rb', line 276

def ls_info_filename(path, st)
  path
end

#ls_info_gid(path, st) ⇒ Object 



190
 
# File 'lib/tb/cmd_ls.rb', line 190

def ls_info_gid(path, st) st.gid end

#ls_info_group(path, st) ⇒ Object 



239
240
241
242
243
244
245
246
247
248
249
250
 
# File 'lib/tb/cmd_ls.rb', line 239

def ls_info_group(path, st)
  gid = st.gid
  begin
    gr = Etc.getgrgid(gid)
  rescue ArgumentError
  end
  if gr
    gr.name
  else
    gid.to_s
  end
end

#ls_info_ino(path, st) ⇒ Object 



186
 
# File 'lib/tb/cmd_ls.rb', line 186

def ls_info_ino(path, st) st.ino end

#ls_info_mode(path, st) ⇒ Object 



187
 
# File 'lib/tb/cmd_ls.rb', line 187

def ls_info_mode(path, st) sprintf("0%o", st.mode) end

#ls_info_mtime(path, st) ⇒ Object 



260
261
262
263
264
265
266
 
# File 'lib/tb/cmd_ls.rb', line 260

def ls_info_mtime(path, st)
  if 1 < @opts[:l]
    st.mtime.iso8601(9)
  else
    st.mtime.iso8601
  end
end

#ls_info_nlink(path, st) ⇒ Object 



188
 
# File 'lib/tb/cmd_ls.rb', line 188

def ls_info_nlink(path, st) st.nlink end

#ls_info_rdev(path, st) ⇒ Object 



191
 
# File 'lib/tb/cmd_ls.rb', line 191

def ls_info_rdev(path, st) sprintf("0x%x", st.rdev) end

#ls_info_size(path, st) ⇒ Object 



192
 
# File 'lib/tb/cmd_ls.rb', line 192

def ls_info_size(path, st) st.size end

#ls_info_symlink(path, st) ⇒ Object 



280
281
282
283
284
285
286
287
288
289
 
# File 'lib/tb/cmd_ls.rb', line 280

def ls_info_symlink(path, st)
  return nil if !st.symlink?
  begin
    File.readlink(path)
  rescue SystemCallError
    @fail = true
    warn "tb: #{$!}: #{path}"
    return nil
  end
end

#ls_info_uid(path, st) ⇒ Object 



189
 
# File 'lib/tb/cmd_ls.rb', line 189

def ls_info_uid(path, st) st.uid end

#ls_info_user(path, st) ⇒ Object 



226
227
228
229
230
231
232
233
234
235
236
237
 
# File 'lib/tb/cmd_ls.rb', line 226

def ls_info_user(path, st)
  uid = st.uid
  begin
    pw = Etc.getpwuid(uid)
  rescue ArgumentError
  end
  if pw
    pw.name
  else
    uid.to_s
  end
end

#ls_long_header ⇒ Object 



171
172
173
174
175
176
177
 
# File 'lib/tb/cmd_ls.rb', line 171

def ls_long_header
  if 1 < @opts[:l]
    %w[dev ino mode filemode nlink uid user gid group rdev size blksize blocks atime mtime ctime filename symlink]
  else
    %w[filemode nlink user group size mtime filename symlink]
  end
end

#ls_long_info(path, st) ⇒ Object 



179
180
181
182
183
 
# File 'lib/tb/cmd_ls.rb', line 179

def ls_long_info(path, st)
  Hash[ls_long_header.map {|info_type|
    [info_type, self.send("ls_info_#{info_type}", path, st)]
  }]
end

#ls_run(path) ⇒ Object 



88
89
90
91
92
93
94
95
96
 
# File 'lib/tb/cmd_ls.rb', line 88

def ls_run(path)
  st = ls_get_stat(path)
  return if !st
  if st.directory?
    ls_dir(path, st)
  else
    ls_file(path, st)
  end
end

#real_pathname_string(str) ⇒ Object 



291
292
293
 
# File 'lib/tb/cmd_ls.rb', line 291

def real_pathname_string(str)
  str.dup.force_encoding("ASCII-8BIT")
end

#set_header ⇒ Object 



80
81
82
83
84
85
86
 
# File 'lib/tb/cmd_ls.rb', line 80

def set_header
  if @opts[:l] == 0
    @y.set_header ['filename']
  else
    @y.set_header(ls_long_header())
  end
end