feat(legacy): +writeDash +helpers

legacy/helper/default.nix

@@ -0,0 +1,3 @@
+{ callPackage }: {
+  posix-shell = callPackage ./posix-shell {};
+}

legacy/helper/posix-shell/colors.sh

@@ -0,0 +1,54 @@
+NC='\033[0m'
+
+# Regular text colors
+BLACK='\033[30m'
+RED='\033[31m'
+GREEN='\033[32m'
+YELLOW='\033[33m'
+BLUE='\033[34m'
+MAGENTA='\033[35m'
+CYAN='\033[36m'
+WHITE='\033[37m'
+
+# Bright text colors
+BBLACK='\033[90m'
+BRED='\033[91m'
+BGREEN='\033[92m'
+BYELLOW='\033[93m'
+BBLUE='\033[94m'
+BMAGENTA='\033[95m'
+BCYAN='\033[96m'
+BWHITE='\033[97m'
+
+# Background colors
+BG_BLACK='\033[40m'
+BG_RED='\033[41m'
+BG_GREEN='\033[42m'
+BG_YELLOW='\033[43m'
+BG_BLUE='\033[44m'
+BG_MAGENTA='\033[45m'
+BG_CYAN='\033[46m'
+BG_WHITE='\033[47m'
+
+# Bright background colors
+BG_BBLACK='\033[100m'
+BG_BRED='\033[101m'
+BG_BGREEN='\033[102m'
+BG_BYELLOW='\033[103m'
+BG_BBLUE='\033[104m'
+BG_BMAGENTA='\033[105m'
+BG_BCYAN='\033[106m'
+BG_BWHITE='\033[107m'
+
+# Text effects
+RESET='\033[0m'
+BOLD='\033[1m'
+DIM='\033[2m'
+ITALIC='\033[3m'
+UNDERLINE='\033[4m'
+BLINK='\033[5m'
+INVERSE='\033[7m'
+HIDDEN='\033[8m'
+STRIKE='\033[9m'
+
+: "$NC" "$BLACK" "$RED" "$GREEN" "$YELLOW" "$BLUE" "$MAGENTA" "$CYAN" "$WHITE" "$BBLACK" "$BRED" "$BGREEN" "$BYELLOW" "$BBLUE" "$BMAGENTA" "$BCYAN" "$BWHITE" "$BG_BLACK" "$BG_RED" "$BG_GREEN" "$BG_YELLOW" "$BG_BLUE" "$BG_MAGENTA" "$BG_CYAN" "$BG_WHITE" "$BG_BBLACK" "$BG_BRED" "$BG_BGREEN" "$BG_BYELLOW" "$BG_BBLUE" "$BG_BMAGENTA" "$BG_BCYAN" "$BG_BWHITE" "$RESET" "$BOLD" "$DIM" "$ITALIC" "$UNDERLINE" "$BLINK" "$INVERSE" "$HIDDEN" "$STRIKE"

legacy/helper/posix-shell/default.nix

@@ -0,0 +1,15 @@
+{ dash, hectic }: let
+  shell = "${dash}/bin/dash";
+  bashOptions = [
+    "errexit"
+    "nounset"
+  ];
+in {
+  log = hectic.writeDash "log.sh" ''
+    ${builtins.readFile ./colors.sh}
+    ${builtins.readFile ./log.sh}
+  '';
+  colors = hectic.writeDash "colors.sh" ''
+    ${builtins.readFile ./colors.sh}
+  '';
+}

legacy/helper/posix-shell/log.sh

@@ -0,0 +1,21 @@
+#!/bin/dash
+
+log() {
+    level="${1:?}"; shift
+    case "$level" in
+        trace)   color="$MAGENTA"  ;;
+        debug)   color="$BLUE"     ;;
+        info)    color="$GREEN"    ;;
+        notice)  color="$CYAN"     ;;
+        warn)    color="$YELLOW"   ;;
+        error)   color="$RED"      ;;
+        *)       color="$WHITE"    ;;
+    esac
+
+
+
+    # shellcheck disable=SC1003
+    fmt="$(printf "%s" "${1:?}" | sed 's/\\033\[0m/''\'"$color"'/g')"
+    shift
+    printf "%b\n" "$color$fmt$NC" "$@" >&2
+}