summaryrefslogtreecommitdiff
path: root/bin/lsrc.in
blob: 5a0774a07ddbb3ae813f5eaa5dbfeb9cd721455b (plain)
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
#!@SHELL@

: ${RCM_LIB:=$(dirname "$0")/../share/rcm}
. "$RCM_LIB/rcm.sh"

pushdir() {
  DIR_STACK="$DIR_STACK:$PWD/$1"
  $DEBUG "cd'ing to $1 from $PWD with stack $DIR_STACK"
  cd "$1"
}

popdir() {
  current="$(echo "$DIR_STACK" | sed -e 's/.*://g')"
  prior="$(echo "$DIR_STACK" | sed -e "s|:$current$||" | sed -e 's/.*://g')"
  DIR_STACK="$(echo "$DIR_STACK" | sed -e 's/:[^:]*$//')"
  $DEBUG "cd'ing to $prior from $PWD with stack $DIR_STACK"
  cd "$prior"
}

build_path() {
  local dest="$1"
  local file="$2"
  local dotted=$3

  if [ $dotted -eq 1 ]; then
    echo "$dest/$file"
  else
    echo "$dest/.$file"
  fi
}

file_join() {
  local result=

  for file; do
    if [ "x$file" != "x." ]; then
      if [ "x$result" = "x" ]; then
        result="$file"
      else
        result="$result/$file"
      fi
    fi
  done

  echo "$result"
}

show_dir() {
  local dir="$1"
  local dest_dir="$2"
  local dotfiles_dir="$3"
  local dotfiles_subdir="$4"
  local dotted=$5
  local exclude_file_globs="$6"
  local include_file_globs="$7"
  local symlink_dirs_file_globs="$8"
  local mk_dirs_file_globs="$9"
  local dest_path="$(build_path "$dest_dir" "$dir" $dotted)"

  $DEBUG "show_dir $1 $2 $3 $4 $5 $6 $7 $8 $9"

  $VERBOSE "recurring on $dest_path"

  pushdir "$dir"
  for f in *; do
    $DEBUG "handling the file $f"
    next_dir="$(file_join "$dotfiles_subdir" "$dir")"
    handle_file "$f" "$dest_path" "$dotfiles_dir" "$next_dir" 1 "$exclude_file_globs" "$include_file_globs" "$symlink_dirs_file_globs" "$mk_dirs_file_globs"
  done
  popdir
}

sigil_for() {
  local file="$1"
  local symlink_dirs_file_globs="$2"
  local copy_always=0
  local symlink_dirs=0

  for copy_file in $COPY_ALWAYS; do
    $DEBUG "copy_file: $copy_file"
    $DEBUG "file: $file"

    case "$file" in
      $copy_file)
        copy_always=1
        break
        ;;
    esac
  done

  if [ -n "$symlink_dirs_file_globs" ]; then
    symlink_dirs=1
  fi

  if [ $copy_always -eq 1 ]; then
    echo 'X'
  elif [ $symlink_dirs -eq 1 ]; then
    echo '$'
  else
    echo '@'
  fi
}

show_file() {
  local file="$1"
  local dest_dir="$2"
  local dotfiles_dir="$3"
  local dotfiles_subdir="$4"
  local dotted=$5
  local symlink_dirs_file_globs="$6"
  local dest_file="$(build_path "$dest_dir" "$file" $dotted)"
  local src_file="$(file_join "$dotfiles_subdir" "$file")"
  local abs_src_file="$(file_join "$dotfiles_dir" "$src_file")"
  local output="$dest_file:$abs_src_file"

  if [ $SHOW_SIGILS -eq 1 ]; then
    sigil="$(sigil_for "$src_file" "$symlink_dirs_file_globs")"
    output="$output:$sigil"
  fi

  if echo "$DEST_STACK:" | grep -v ":$dest_file:" >/dev/null; then
    DEST_STACK="$DEST_STACK:$dest_file"
    $PRINT "$output"
  else
    $VERBOSE "skipping hidden file $output"
  fi
}

handle_file() {
  local file="$1"
  local dest_dir="$2"
  local dotfiles_dir="$3"
  local dotfiles_subdir="$4"
  local dotted=$5
  local exclude_file_globs="$6"
  local include_file_globs="$7"
  local symlink_dirs_file_globs="$8"
  local mk_dirs_file_globs="$9"

  $DEBUG "handle_file $1 $2 $3 $4 $5 $6 $7 $8" "$9"

  if [ ! -e "$file" ]; then
    $VERBOSE "skipping non-existent file $file"
  elif is_excluded "$dotfiles_subdir/$file" "$exclude_file_globs" "$include_file_globs"; then
    $VERBOSE "skipping excluded file $file"
  elif [ -d "$file" ] && is_excluded "$dotfiles_subdir/$file" "$symlink_dirs_file_globs" "$mk_dirs_file_globs"; then
    show_file "$file" "$dest_dir" "$dotfiles_dir" "$dotfiles_subdir" $dotted
  elif [ -d "$file" ]; then
    show_dir "$file" "$dest_dir" "$dotfiles_dir" "$dotfiles_subdir" $dotted "$exclude_file_globs" "$include_file_globs" "$symlink_dirs_file_globs" "$mk_dirs_file_globs"
  else
    show_file "$file" "$dest_dir" "$dotfiles_dir" "$dotfiles_subdir" $dotted
  fi
}

is_metafile() {
  host_portion="$(echo "$1" | sed -e 's/host-.*/host-/')"
  tag_portion="$(echo "$1" | sed -e 's/tag-.*/tag-/')"

  [ "x$host_portion" = 'xhost-' -o "x$tag_portion" = 'xtag-' -o "x$1" = "xhooks" ]
}

dotfiles_dir_excludes() {
  local dotfiles_dir="$1"
  local excludes="$2"

  $DEBUG "dotfiles_dir_excludes $dotfiles_dir"
  $DEBUG "  with excludes: $excludes"

  for exclude in $excludes; do
    if echo "$exclude" | grep ':' >/dev/null; then
      dotfiles_dir_pat="$(echo "$exclude" | sed 's/:.*//')"
      file_glob="$(echo "$exclude" | sed 's/.*://')"

      if [ "x$dotfiles_dir_pat" != "x*" ] && is_relative "$dotfiles_dir_pat"; then
        dotfiles_dir_pat="$PWD/$dotfiles_dir_pat"
      fi

      if [ "x$dotfiles_dir_pat" = "x*" -o "x$dotfiles_dir_pat" = "x$dotfiles_dir" ]; then
        echo "$file_glob"
      fi
    else
      echo "$exclude"
    fi
  done
}

is_excluded() {
  local file="$1"
  local exclude_file_globs="$2"
  local include_file_globs="$3"
  local base_file="$(basename "$file")"

  $DEBUG "is_excluded $file $exclude_file_globs $include_file_globs"

  for exclude_file_glob in $exclude_file_globs; do
    $DEBUG "file: $file"
    $DEBUG "exclude_file_glob: $exclude_file_glob"

    is_single_excluded "$file" "$exclude_file_glob" "$include_file_globs"
    ret=$?
    if [ $ret -eq 0 -o $ret -eq 1 ]; then
      return $ret
    fi

    is_single_excluded "$base_file" "$exclude_file_glob" "$include_file_globs"
    ret=$?
    if [ $ret -eq 0 -o $ret -eq 1 ]; then
      return $ret
    fi
  done

  return 1
}

is_single_excluded() {
  local file="$1"
  local exclude_file_glob="$2"
  local include_file_globs="$3"

  case "$file" in
    $exclude_file_glob)
      for include_file_glob in $include_file_globs; do
        case "$file" in
          $include_file_glob) return 1;;
        esac
      done

      return 0
      ;;
  esac

  return 2
}

show_help() {
  local exit_code=${1:-0}

  $PRINT "Usage: lsrc [-FhqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT] [-s EXCL_PAT] [-t TAG] [-U EXCL_PAT] [-u EXCL_PAT] [-x EXCL_PAT]"
  $PRINT "see lsrc(1) and rcm(7) for more details"

  exit $exit_code
}

handle_command_line() {
  local arg_tags=
  local verbosity=0
  local version=0
  local show_sigils=0
  local dotfiles_dirs=
  local excludes=
  local includes=
  local symlink_dirs=
  local never_symlink_dirs=
  local hostname=
  local undotted=
  local never_undotted=

  while getopts :FVqvhI:x:B:S:s:U:u:t:d: opt; do
    case "$opt" in
      F) show_sigils=1;;
      h) show_help ;;
      I) includes="$includes $OPTARG";;
      t) arg_tags="$arg_tags $OPTARG";;
      v) verbosity=$(($verbosity + 1));;
      q) verbosity=$(($verbosity - 1));;
      d) dotfiles_dirs="$dotfiles_dirs $OPTARG";;
      V) version=1;;
      x) excludes="$excludes $OPTARG";;
      S) symlink_dirs="$symlink_dirs $OPTARG";;
      s) never_symlink_dirs="$never_symlink_dirs $OPTARG";;
      U) undotted="$undotted $OPTARG";;
      u) never_undotted="$never_undotted $OPTARG";;
      B) hostname="$OPTARG";;
      ?) show_help 64 ;;
    esac
  done
  shift $(($OPTIND-1))

  handle_common_flags lsrc $version $verbosity
  HOSTNAME="$(determine_hostname "$hostname")"
  SHOW_SIGILS=$show_sigils
  TAGS="${arg_tags:-$TAGS}"
  DOTFILES_DIRS="${dotfiles_dirs:-$DOTFILES_DIRS}"
  EXCLUDES="${excludes:-$EXCLUDES}"
  INCLUDES="${includes:-$INCLUDES}"
  SYMLINK_DIRS="${symlink_dirs:-$SYMLINK_DIRS}"
  MK_DIRS="${never_symlink_dirs:-$MK_DIRS}"
  UNDOTTED="${undotted:-$UNDOTTED}"
  NEVER_UNDOTTED="${never_undotted:-$NEVER_UNDOTTED}"
  FILES="$@"

  $DEBUG "TAGS: $TAGS"
  $DEBUG "DOTFILES_DIRS: $DOTFILES_DIRS"
}

DEST_STACK=

handle_command_line "$@"

: ${DOTFILES_DIRS:=$DOTFILES_DIRS $DEFAULT_DOTFILES_DIR}
$DEBUG "DOTFILES_DIRS: $DOTFILES_DIRS"

: ${COPY_ALWAYS:=""}
$DEBUG "COPY_ALWAYS: $COPY_ALWAYS"

: ${SYMLINK_DIRS:=""}
$DEBUG "SYMLINK_DIRS: $SYMLINK_DIRS"

: ${MK_DIRS:=""}
$DEBUG "MK_DIRS: $MK_DIRS"

: ${UNDOTTED:=""}
$DEBUG "UNDOTTED: $UNDOTTED"

: ${NEVER_UNDOTTED:=""}
$DEBUG "NEVER_UNDOTTED: $NEVER_UNDOTTED"

relative_root_dir="$PWD"

for DOTFILES_DIR in $DOTFILES_DIRS; do
  cd "$relative_root_dir"

  DOTFILES_DIR="$(eval echo "$DOTFILES_DIR")"

  if is_relative $DOTFILES_DIR; then
    DOTFILES_DIR="$PWD/$DOTFILES_DIR"
  fi

  if [ ! -d "$DOTFILES_DIR" ]; then
    $VERBOSE "skipping non-existent directory: $DOTFILES_DIR"
    continue
  fi

  exclude_file_globs="$(dotfiles_dir_excludes "$DOTFILES_DIR" "$EXCLUDES")"
  $DEBUG "exclude_file_globs: $exclude_file_globs"
  include_file_globs="$(dotfiles_dir_excludes "$DOTFILES_DIR" "$INCLUDES")"
  symlink_dirs_file_globs="$(dotfiles_dir_excludes "$DOTFILES_DIR" "$SYMLINK_DIRS")"
  $DEBUG "symlink_dirs_file_globs: $symlink_dirs_file_globs"
  mk_dirs_file_globs="$(dotfiles_dir_excludes "$DOTFILES_DIR" "$MK_DIRS")"
  $DEBUG "mk_dirs_file_globs: $mk_dirs_file_globs"
  undotted_file_globs="$(dotfiles_dir_excludes "$DOTFILES_DIR" "$UNDOTTED")"
  $DEBUG "undotted_file_globs: $undotted_file_globs"
  never_undotted_file_globs="$(dotfiles_dir_excludes "$DOTFILES_DIR" "$NEVER_UNDOTTED")"
  $DEBUG "never_undotted_file_globs: $never_undotted_file_globs"

  cd "$DOTFILES_DIR"
  DIR_STACK=":$DOTFILES_DIR"

  host_files="$DOTFILES_DIR/host-$HOSTNAME"
  if [ -d "$host_files" ]; then
    pushdir "$(basename "$host_files")"
    for escaped_file in ${FILES:-*}; do
      file="$(decode "$escaped_file")"
      dotted=0
      if is_excluded "$file" "$undotted_file_globs" "$never_undotted_file_globs"; then
        dotted=1
      fi

      handle_file "$file" "$DEST_DIR" "$host_files" . "$dotted" "$exclude_file_globs" "$include_file_globs" "$symlink_dirs_file_globs" "$mk_dirs_file_globs"
    done
    popdir
  fi

  cd "$DOTFILES_DIR"

  for tag in $TAGS; do
    if [ -d "tag-$tag" ]; then
      pushdir "$(basename "tag-$tag")"
      for escaped_file in ${FILES:-*}; do
        file="$(decode "$escaped_file")"
        $DEBUG "TAG: $tag, exclude_file_globs: $exclude_file_globs"
        dotted=0
        if is_excluded "$file" "$undotted_file_globs" "$never_undotted_file_globs"; then
          dotted=1
        fi
        handle_file "$file" "$DEST_DIR" "$DOTFILES_DIR/tag-$tag" . "$dotted" "$exclude_file_globs" "$include_file_globs" "$symlink_dirs_file_globs" "$mk_dirs_file_globs"
      done
      popdir
    fi
  done

  cd "$DOTFILES_DIR"

  for escaped_file in ${FILES:-*}; do
    file="$(decode "$escaped_file")"
    dotted=0
    if is_metafile "$file"; then
      continue
    fi

    if is_excluded "$file" "$undotted_file_globs" "$never_undotted_file_globs"; then
      dotted=1
    fi

    handle_file "$file" "$DEST_DIR" "$DOTFILES_DIR" . "$dotted" "$exclude_file_globs" "$include_file_globs" "$symlink_dirs_file_globs" "$mk_dirs_file_globs"
  done
done