add animoji-command

.config/zsh/completions/_animoji-command

@@ -0,0 +1,11 @@
+#compdef animoji-command
+
+_arguments '-h[short help text]' \
+           '--help[short help text]' \
+           '--delay[milliseconds to show each frame]:milliseconds' \
+           '--blend[enable blending (only WebP)]' \
+           '*:input files:_files'
+
+# Local Variables:
+# mode: shell-script
+# End:

.config/zsh/functions/animoji-command

@@ -0,0 +1,42 @@
+#!/usr/bin/env zsh
+# Output commands to generate animated images from files
+
+setopt LOCAL_OPTIONS ERR_RETURN NO_UNSET PIPE_FAIL
+
+zmodload zsh/zutil
+local -a o_help=()
+local -a o_delay=()
+local -a o_blend=()
+zparseopts -D -K -- h=o_help -help=o_help -delay:=o_delay -blend=o_blend
+if [[ ${#o_help} -ne 0 || ! -v 1 ]]; then
+    local ret=$(( ${#o_help} ^ 1 ))
+    print -u $(( 1 + ${ret} )) \
+          "usage: ${0} [-h|--help] [--delay MILLISECONDS] [--blend]" "<FILES>"
+    return ${ret}
+fi
+
+local delay=100
+[[ ${#o_delay} -eq 2 ]] && delay=${o_delay[2]}
+local blend="-b"
+[[ ${#o_help} -ne 0 ]] && blend="+b"
+
+local -a cmd
+if [[ ${1##*.} == "webp" ]]; then
+    cmd=(webpmux -o output.webp)
+    for file in ${@}; do
+        cmd+=(-frame ${file} +${delay}+0+0+0${blend})
+    done
+elif [[ ${1##*.} == "png" ]]; then
+    cmd=(apngasm --output output.png)
+    for file in ${@}; do
+        cmd+=(${file} ${delay})
+    done
+else
+    print -u 2 "file format not supported"
+    return 1
+fi
+if [[ -o INTERACTIVE ]]; then
+    print -z "" ${cmd}
+else
+    print "" ${cmd}
+fi