summaryrefslogtreecommitdiff
path: root/bin/rcup
blob: df9adacc0c84f8651f4b94a80623e0010addecd9 (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
#!/bin/sh

: ${RCM_LIB:=`dirname $0`/../share/rcm}
. $RCM_LIB/rcm.sh

link_file() {
  local src=$1
  local dest=$2

  if [ -h $dest ]; then
    $RM -f $dest
  fi

  $LN $src $dest
}

replace_file() {
  local src=$1
  local dest=$2

  $DEBUG replace_file $1 $2
  
  $RM -rf $dest
  link_file $src $dest
}

is_nested() {
  echo $1 | sed "s:$DEST_DIR/::" | grep -q /
  return $?
}

is_identical() {
  diff -q -s $1 $2 > /dev/null
}

handle_dir() {
  local dest=$1

  $DEBUG handle_dir $1

  dirname $dest | xargs $MKDIR -p
}

handle_file() {
  local src=$1
  local dest=$2

  $DEBUG handle_file $1 $2

  if [ -e "$dest" ]; then
    if is_identical $src $dest; then
      $VERBOSE "identical $dest"
    elif [ $REPLACE_ALL -eq 1 ]; then
      replace_file $src $dest
    else
      $PROMPT "overwrite ${dest}? [ynaq]"
      read overwrite
      case $overwrite in
        a) REPLACE_ALL=1
           replace_file $src $dest
           ;;
        y) replace_file $src $dest ;;
        q) exit 1 ;;
        *) $VERBOSE "skipping $dest" ;;
      esac
    fi
  else
    link_file $src $dest
  fi
}

handle_command_line() {
  local arg_tags=
  local verbosity=0
  local version=0
  local dotfiles_dirs=
  local files=
  local excludes=
  local includes=
  local always_copy=0
  REPLACE_ALL=0

  while getopts CVqvfiI:e:t:d: opt; do
    case "$opt" in
      C) always_copy=1 ;;
      d) dotfiles_dirs="$dotfiles_dirs $OPTARG" ;;
      e) excludes="$excludes $OPTARG" ;;
      f) REPLACE_ALL=1 ;;
      i) REPLACE_ALL=0 ;;
      I) includes="$includes $OPTARG" ;;
      q) verbosity=$(($verbosity - 1)) ;;
      t) arg_tags="$arg_tags $OPTARG" ;;
      v) verbosity=$(($verbosity + 1)) ;;
      V) version=1
    esac
  done
  shift $(($OPTIND-1))

  if [ $always_copy -eq 1 ]; then
    LN=cp
  fi

  handle_common_flags rcup $version $verbosity

  tags=${arg_tags:-$TAGS}
  dotfiles_dirs=${dotfiles_dirs:-$DOTFILES_DIRS}
  files=$@

  for tag in $tags; do
    LS_ARGS="$LS_ARGS -t $tag"
  done
  for dotfiles_dir in $dotfiles_dirs; do
    LS_ARGS="$LS_ARGS -d $dotfiles_dir"
  done
  for exclude in $excludes; do
    LS_ARGS="$LS_ARGS -e $exclude"
  done
  for include in $includes; do
    LS_ARGS="$LS_ARGS -I $include"
  done
  LS_ARGS="$LS_ARGS $files"

  $DEBUG "LS_ARGS: $LS_ARGS"
}

if [ -e $HOME/.rcrc ]; then
  . $HOME/.rcrc
fi

handle_command_line $*

for dest_and_src in `lsrc $LS_ARGS`; do
  dest=`echo $dest_and_src | sed 's/:.*//'`
  src=`echo $dest_and_src | sed 's/.*://'`

  if is_nested $dest; then
    handle_dir $dest
  fi

  handle_file $src $dest
done