✨ Finished dye, updated dependency check

scripts/dependencycheck

@@ -36,22 +36,22 @@ function dependencycheck()
 # invoke function comment out if sourced
 dependencycheck "$@"
 
-# Barebones version without tput (for being sourced):
-# function dependencycheck()
-# {
-    # numdependencies="$#"
-    # dependencies=("$@")
-    # missingdependencies=0
+# Better simple version from tomocafe (see upnup script)
+# For use within scripts, not on its own
 
-    # for ((i = 0; i < numdependencies; i++)) ; do
-        # if ! command -v "${dependencies[$i]}" &> /dev/null ; then
-            # echo "dependency not met: ${dependencies[$i]}"
-            # missingdependencies=$((missingdependencies+1))
+#error() {
+    # printf "error: %s\n" "$1" 1>&2
+    # ${2:+exit $2}
+# }
+
+# dependencycheck() {
+    # local dep missingdependencies=0
+    # for dep in "$@" ; do
+        # if ! command -v "$dep" &> /dev/null ; then
+            # error "dependency not met: $dep"
         # fi
     # done
-
-    # if [ $missingdependencies -gt 0 ] ; then
-        # echo "Please install needed dependencies"
+    # if [[ $missingdependencies -gt 0 ]] ; then
         # exit 1
     # fi
 # }

scripts/dye

@@ -0,0 +1,95 @@
+#!/usr/bin/env bash
+# set -vx
+
+# Copyright (C) 2022 Brian Hayes
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+printhelp() {
+cat << EOM
+usage: dye [-h|-r] [color_code]
+options:
+ -x             hex code to rgb
+ -r                  rgb to hex
+examples:
+ dye -x "#FFFFFF"
+ dye -r 255 255 255
+EOM
+    exit 1
+}
+
+hex_to_rgb() {
+    : "${1/\#}"
+    ((r=16#${_:0:2},g=16#${_:2:2},b=16#${_:4:2}))
+    printf '%s\n' "rgba($r, $g, $b)"
+}
+
+rgb_to_hex() {
+    printf '#%02x%02x%02x\n' "$1" "$2" "$3"
+}
+
+error() {
+    printf "error: %s\n" "$1" 1>&2
+    ${2:+exit $2}
+}
+
+dependencycheck() {
+    local dep missingdependencies=0
+    for dep in "$@" ; do
+        if ! command -v "$dep" &> /dev/null ; then
+            error "dependency not met: $dep"
+        fi
+    done
+    if [[ $missingdependencies -gt 0 ]] ; then
+        exit 1
+    fi
+}
+
+main() {
+    while getopts ":x:r:?" arg; do
+        case $arg in
+            x)
+                rgbaval=$(hex_to_rgb "${2:-''}")
+                printf "%s\n" "$rgbaval"
+                read -e -r -p "save code to clipboard?(y/n): " clipit
+                if [[ "$clipit" == "yes" || "$clipit" == "y" ]]; then
+                    dependencycheck xclip
+                    printf "%s" "$rgbaval" | xclip -sel clip
+                fi
+                ;;
+            r)
+                hexval=$(rgb_to_hex "${2:-''}")
+                printf "%s\n" "$hexval"
+                read -e -r -p "save code to clipboard?(y/n): " clipit
+                if [[ "$clipit" == "yes" || "$clipit" == "y" ]]; then
+                    dependencycheck xclip
+                    printf "%s" "$hexval" | xclip -sel clip
+                fi
+                ;;
+            ?)
+                printhelp
+                ;;
+        esac
+    done
+}
+
+main "$@"
+
+# Credits:
+# hex_to_rgb() and rgb_to_hex() taken from Akash Mittal:
+# https://akashmittal.com/code-example-convert-hex-color-to-rgb-rgb-to-hex-using-bash-script/
+# https://www.linkedin.com/in/akashrishimittal/
+#
+# error() and dependencycheck() copied from tomocafe:
+# https://github.com/tomocafe