impr: relaunch fzf only when necessary

src/sh/icalendar.sh

@@ -0,0 +1,128 @@
+# Interface to modify iCalendar files
+
+# Toggle completed status of VTODO
+#
+# @input $1: Relative path to iCalendar file
+__toggle_completed() {
+  fname="$1"
+  shift
+  file="$ROOT/$fname"
+  tmpfile=$(mktemp)
+  awk "$AWK_ALTERTODO" "$file" >"$tmpfile"
+  mv "$tmpfile" "$file"
+  if [ -n "${GIT:-}" ]; then
+    $GIT add "$file"
+    $GIT commit -q -m "Completed toggle" -- "$file"
+  fi
+}
+
+# Change priority of VTODO entry
+#
+# @input $1: Delta, can be any integer
+# @input $2: Relative path to iCalendar file
+__change_priority() {
+  delta=$1
+  shift
+  fname="$1"
+  shift
+  echo "call to __change_priority with delta=$delta and fname=$fname" >>/tmp/foo
+  file="$ROOT/$fname"
+  tmpfile=$(mktemp)
+  echo "        tmpfile=$tmpfile" >>/tmp/foo
+  awk -v delta="$delta" "$AWK_ALTERTODO" "$file" >"$tmpfile"
+  echo "        lines=$(wc -l tmpfile)" >>/tmp/foo
+  mv "$tmpfile" "$file"
+  if [ -n "${GIT:-}" ]; then
+    $GIT add "$file"
+    $GIT commit -q -m "Priority changed by $delta" -- "$file"
+  fi
+}
+
+# Edit file
+#
+# @input $1: File path
+__edit() {
+  file="$1"
+  shift
+  filetmp=$(mktemp --suffix='.md')
+  awk "$AWK_EXPORT" "$file" >"$filetmp"
+  checksum=$(cksum "$filetmp")
+
+  # Open in editor
+  $EDITOR "$filetmp" >/dev/tty
+
+  # Update only if changes are detected
+  if [ "$checksum" != "$(cksum "$filetmp")" ]; then
+    file_new="$filetmp.ics"
+    awk "$AWK_UPDATE" "$filetmp" "$file" >"$file_new"
+    mv "$file_new" "$file"
+    if [ -n "${GIT:-}" ]; then
+      $GIT add "$file"
+      $GIT commit -q -m "File modified" -- "$file"
+    fi
+  fi
+  rm "$filetmp"
+}
+
+# Delete file
+#
+# @input $1: File path
+__delete() {
+  file="$1"
+  shift
+  summary=$(awk -v field="SUMMARY" "$AWK_GET" "$file")
+  while true; do
+    printf "Do you want to delete the entry with the title \"%s\"? (yes/no): " "$summary" >/dev/tty
+    read -r yn
+    case $yn in
+    "yes")
+      rm -v "$file"
+      if [ -n "${GIT:-}" ]; then
+        $GIT add "$file"
+        $GIT commit -q -m "File deleted" -- "$file"
+      fi
+      break
+      ;;
+    "no")
+      break
+      ;;
+    *)
+      echo "Please answer \"yes\" or \"no\"." >/dev/tty
+      ;;
+    esac
+  done
+}
+
+# Add file
+__new() {
+  collection=$(printf "%s" "$COLLECTION_LABELS" | tr ';' '\n' | $FZF --delimiter='=' --with-nth=2 --accept-nth=1)
+  file=""
+  while [ -f "$file" ] || [ -z "$file" ]; do
+    uuid=$($UUIDGEN)
+    file="$ROOT/$collection/$uuid.ics"
+  done
+  tmpmd=$(mktemp --suffix='.md')
+  {
+    echo "::: |> <!-- keep this line to associate the entry to _today_ -->"
+    echo "::: <| <!-- specify the due date for to-dos, can be empty, a date string, or even \"next Sunday\" -->"
+    echo "# <!-- write summary here -->"
+    echo "> <!-- comma-separated list of categories -->"
+    echo ""
+  } >"$tmpmd"
+  checksum=$(cksum "$tmpmd")
+
+  # Open in editor
+  $EDITOR "$tmpmd" >/dev/tty
+
+  # Update if changes are detected
+  if [ "$checksum" != "$(cksum "$tmpmd")" ]; then
+    tmpfile="$tmpmd.ics"
+    awk -v uid="$uuid" "$AWK_NEW" "$tmpmd" >"$tmpfile"
+    mv "$tmpfile" "$file"
+    if [ -n "${GIT:-}" ]; then
+      $GIT add "$file"
+      $GIT commit -q -m "File added" -- "$file"
+    fi
+  fi
+  rm "$tmpmd"
+}