1 files changed, 188 insertions, 0 deletions
diff --git a/bin/rcup.in b/bin/rcup.in
new file mode 100755
index 0000000..849a0f7
--- /dev/null
+++ b/bin/rcup.in
@@ -0,0 +1,188 @@
+#!@SHELL@
+
+: ${RCM_LIB:=$(dirname "$0")/../share/rcm}
+. "$RCM_LIB/rcm.sh"
+
+link_or_copy() {
+  $DEBUG "link_or_copy $1"
+  local sigil="$1"
+
+  if [ "x$sigil" = "xX" ]; then
+    echo "cp_v"
+  else
+    echo "$LN"
+  fi
+}
+
+link_file() {
+  local src="$1"
+  local dest="$2"
+  local sigil="$3"
+
+  if [ -h "$dest" ]; then
+    rm_v -f "$dest"
+  fi
+
+  action="$(link_or_copy "$sigil")"
+  $DEBUG "$action $src $dest"
+  $action "$src" "$dest"
+}
+
+replace_file() {
+  local src="$1"
+  local dest="$2"
+  local sigil="$3"
+
+  $DEBUG replace_file "$1" "$2" $3
+
+  rm_v -rf "$dest"
+  link_file "$src" "$dest" "$sigil"
+}
+
+is_nested() {
+  echo "$1" | sed "s:$DEST_DIR/::" | grep -q '/'
+}
+
+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"
+  local sigil="$3"
+
+  $DEBUG "handle_file $1 $2 $3"
+
+  if [ -e "$dest" ]; then
+    if is_identical "$src" "$dest"; then
+      $VERBOSE "identical $dest"
+    elif [ $REPLACE_ALL -eq 1 ]; then
+      replace_file "$src" "$dest" "$sigil"
+    else
+      $PROMPT "overwrite ${dest}? [ynaq]"
+      read overwrite
+      case "$overwrite" in
+        a) REPLACE_ALL=1
+           replace_file "$src" "$dest" "$sigil"
+           ;;
+        y) replace_file "$src" "$dest" "$sigil" ;;
+        q) exit 1 ;;
+        *) $VERBOSE "skipping $dest" ;;
+      esac
+    fi
+  else
+    link_file "$src" "$dest" "$sigil"
+  fi
+}
+
+show_help() {
+  local exit_code=${1:-0}
+
+  $PRINT "Usage: rcup [-CVqvfhikK] [-I EXCL_PAT] [-x EXCL_PAT] [-t TAG] [-d DOT_DIR]"
+  $PRINT "see rcup(1) and rcm(5) for more details"
+
+  exit $exit_code
+}
+
+handle_command_line() {
+  local arg_tags=
+  local verbosity=0
+  local version=0
+  local run_hooks=1
+  local dotfiles_dirs=
+  local files=
+  local excludes=
+  local includes=
+  local always_copy=0
+  local symlink_dirs=
+  REPLACE_ALL=0
+
+  while getopts CVqvfhikKI:x:S:t:d: opt; do
+    case "$opt" in
+      C) always_copy=1 ;;
+      d) dotfiles_dirs="$dotfiles_dirs $OPTARG" ;;
+      f) REPLACE_ALL=1 ;;
+      h) show_help ;;
+      i) REPLACE_ALL=0 ;;
+      I) includes="$includes $OPTARG" ;;
+      k) run_hooks=1 ;;
+      K) run_hooks=0 ;;
+      q) verbosity=$(($verbosity - 1)) ;;
+      t) arg_tags="$arg_tags $OPTARG" ;;
+      S) symlink_dirs="$symlink_dirs $OPTARG";;
+      v) verbosity=$(($verbosity + 1)) ;;
+      V) version=1 ;;
+      x) excludes="$excludes $OPTARG" ;;
+    esac
+  done
+  shift $(($OPTIND-1))
+
+  LN="ln_v"
+  if [ $always_copy -eq 1 ]; then
+    LN="cp_v"
+  fi
+
+  handle_common_flags rcup $version $verbosity
+
+  tags="${arg_tags:-$TAGS}"
+  DOTFILES_DIRS="${dotfiles_dirs:-$DOTFILES_DIRS}"
+  RUN_HOOKS=$run_hooks
+  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 -x $exclude"
+  done
+  for include in $includes; do
+    LS_ARGS="$LS_ARGS -I $include"
+  done
+  for symlink_dir in $symlink_dirs; do
+    LS_ARGS="$LS_ARGS -S $symlink_dir"
+  done
+  LS_ARGS="$LS_ARGS $files"
+
+  $DEBUG "LS_ARGS: $LS_ARGS"
+}
+
+LS_ARGS=-F
+
+handle_command_line "$@"
+: ${DOTFILES_DIRS:=$DOTFILES_DIRS $DEFAULT_DOTFILES_DIR}
+
+run_hooks pre up
+
+dests_and_srcs="$(lsrc $LS_ARGS)"
+
+saved_ifs="$IFS"
+IFS='
+'
+for dest_and_src in $dests_and_srcs; do
+  IFS=:
+  set -- $dest_and_src
+  IFS="$saved_ifs"
+  dest="$1"
+  src="$2"
+  sigil="$3"
+
+  if is_nested "$dest"; then
+    handle_dir "$dest"
+  fi
+
+  handle_file "$src" "$dest" "$sigil"
+done
+
+run_hooks post up