1 files changed, 41 insertions, 0 deletions
diff --git a/just-lib.sh b/just-lib.sh
new file mode 100644
index 0000000..2392709
--- /dev/null
+++ b/just-lib.sh
@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+# shellcheck shell=bash
+# Shared helpers for the fmt / check-fmt / lint just recipes.
+# Sourced from justfile recipe bodies; not standalone.
+
+_need() {
+  command -v "$1" >/dev/null 2>&1 || {
+    printf 'error: %s not on PATH (install: %s)\n' "$1" "$2" >&2
+    exit 1
+  }
+}
+
+_find_shells() {
+  find . -type f \
+    \( -name '*.sh' \
+    -o -path './dot_local/bin/executable_*' \
+    -o -path './dot_config/sway/executable_*' \) \
+    -not -path './.git/*' -not -path './.worktrees/*'
+}
+
+_find_by_ext() {
+  find . -type f -name "*.$1" \
+    -not -path './.git/*' -not -path './.worktrees/*'
+}
+
+_find_zsh() {
+  find . -type f \
+    \( -name 'dot_zshrc' -o -name 'dot_zshenv' -o -name 'dot_zprofile' \) \
+    -not -path './.git/*' -not -path './.worktrees/*'
+}
+
+_is_zsh() {
+  case "$(basename "$1")" in
+    dot_zshrc | dot_zshenv | dot_zprofile | .zshrc | .zshenv | .zprofile) return 0 ;;
+  esac
+  return 1
+}
+
+_is_shellscript() {
+  head -1 "$1" 2>/dev/null | grep -qE '^#!.*\b(ba)?sh\b'
+}