86 lines
1.7 KiB
Bash
Executable File
86 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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usage() {
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echo "Usage: $0 -c COMMENT_SYMBOL [-e EXCLUDE_PATTERN]... TARGET"
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echo " -c Comment symbol (e.g., '#' or '//')"
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echo " -e Exclude pattern (can be specified multiple times)"
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echo " TARGET File or directory to process"
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exit 1
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}
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comment_sym=""
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excludes=()
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while getopts "c:e:h" opt; do
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case $opt in
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c) comment_sym="$OPTARG" ;;
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e) excludes+=("$OPTARG") ;;
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h) usage ;;
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*) usage ;;
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esac
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done
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shift $((OPTIND - 1))
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[[ $# -ne 1 ]] && usage
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[[ -z "$comment_sym" ]] && usage
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target="$(realpath "$1")"
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base_dir="$(pwd)"
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should_exclude() {
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local path="$1"
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for pattern in "${excludes[@]}"; do
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if [[ "$path" == *"$pattern"* ]]; then
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return 0
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fi
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done
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return 1
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}
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process_file() {
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local file="$1"
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local rel_path="${file#"$base_dir"/}"
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should_exclude "$rel_path" && return
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local path_comment="$comment_sym path: $rel_path"
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# Read first two lines
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local line1 line2
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IFS= read -r line1 <"$file" 2>/dev/null || line1=""
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IFS= read -r line2 < <(tail -n +2 "$file") 2>/dev/null || line2=""
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# Check if path comment exists in first or second line
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[[ "$line1" == *"path: "* ]] && return
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[[ "$line2" == *"path: "* ]] && return
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# Insert after shebang if present, otherwise at top
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if [[ "$line1" =~ ^#! ]]; then
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{
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echo "$line1"
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echo "$path_comment"
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tail -n +2 "$file"
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} >"$file.tmp"
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else
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{
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echo "$path_comment"
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cat "$file"
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} >"$file.tmp"
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fi
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mv "$file.tmp" "$file"
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}
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if [[ -f "$target" ]]; then
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process_file "$target"
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elif [[ -d "$target" ]]; then
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while IFS= read -r -d '' file; do
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process_file "$file"
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done < <(find "$target" -type f -print0)
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else
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echo "Error: $target is not a file or directory" >&2
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exit 1
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fi
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