add --help and usage functions

fzmp

@@ -4,6 +4,17 @@ declare esc=$(printf '\033')
 declare c_reset="${esc}[0m"
 declare c_red="${esc}[31m"
 
+usage() {
+  more <<'HELP'
+fzmp [OPTIONS]
+
+-A|--all       search all songs in the library
+-a|--artist    search artist then filter by album
+-p|--playlist  search the current playlist
+-h|--help      print this help
+HELP
+}
+
 isRunning() {
   pgrep "$1" &> /dev/null
 }
@@ -90,8 +101,10 @@ isRunning mpd || die 'mpd not running'
 declare filter='filterAll'
 while true; do
   case "$1" in
+    -A|--all)      filter='filterAll'       ; shift ;;
     -a|--artist)   filter='filterByArtist'  ; shift ;;
     -p|--playlist) filter='filterByPlayist' ; shift ;;
+    -h|--help)     usage                    ; exit  ;;
     *) break
   esac
 done

ix

@@ -4,7 +4,38 @@ declare OPTIND
 declare opts=()
 declare id
 
-set -e
+usage() {
+  more <<'HELP'
+ix [OPTIONS]
+
+-l             list all pastes, uses fzf for interactive use
+-d [id]        delete the paste at [id]
+-i [id]        replaces the paste with stdin
+-h             print this help
+HELP
+}
+
+err() {
+  echo -e "${c_red}$1${c_reset}" >&2
+}
+
+die() {
+  exit 1
+}
+
+has() {
+  local verbose=false
+  if [[ $1 == '-v' ]]; then
+    verbose=true
+    shift
+  fi
+  for c in "$@"; do c="${c%% *}"
+    if ! command -v "$c" &> /dev/null; then
+      [[ "$verbose" == true ]] && err "$c not found"
+      return 1
+    fi
+  done
+}
 
 usage() {
   echo TODO
@@ -37,12 +68,15 @@ listPastes() {
     sed -r 's|<a href="/(\w+)">|http://ix.io/\1|'
 }
 
+has -v curl || die
+
 hasAccount || createAccount
 
 [[ -e ~/.netrc ]] && opts+=( '-n' )
 
 while getopts ":hld:i:n:" x; do
   case "$x" in
+    h) usage; exit ;;
     d) curl "${opts[@]}" -X DELETE "ix.io/$OPTARG"; exit ;;
     l)
       if [[ -z "$OPTARG" && -e ~/.netrc ]]; then

sshget

@@ -4,7 +4,40 @@ declare -r fifo='/tmp/sshget.fifo'
 declare -A domains=()
 declare -A paths=()
 declare -a files=()
-declare -A requests=()
+
+declare esc=$(printf '\033')
+declare c_reset="${esc}[0m"
+declare c_red="${esc}[31m"
+
+usage() {
+  more <<'HELP'
+sshget user@host1:/path/to/search user@host2:/path/to/search
+HELP
+}
+
+err() {
+  echo -e "${c_red}$1${c_reset}" >&2
+}
+
+die() {
+  exit 1
+}
+
+has() {
+  local verbose=false
+  if [[ $1 == '-v' ]]; then
+    verbose=true
+    shift
+  fi
+  for c in "$@"; do c="${c%% *}"
+    if ! command -v "$c" &> /dev/null; then
+      [[ "$verbose" == true ]] && err "$c not found"
+      return 1
+    fi
+  done
+}
+
+has -v fzf rsync || die
 
 cleanup() {
   [[ -e "$fifo" ]] && rm "$fifo"
@@ -25,7 +58,7 @@ for s in "${!domains[@]}"; do
   ssh "${domains[$s]}" "find ${paths[$s]}" | sed -r "s|^(.*)|${domains[$s]}:\"\1\"|" >> "$fifo" &
 done
 
-mapfile -t files < <( fzf -e --inline-info --multi --cycle --query="$*" < "$fifo" )
+mapfile -t files < <( fzf -e --inline-info --multi --cycle < "$fifo" )
 
 if (( ${#files[@]} )); then
   rsync -auvzP -e ssh "${files[@]}" .