2018-03-12 00:56:25 +01:00
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#!/bin/bash
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: "${CM_DIR="${XDG_RUNTIME_DIR-"${TMPDIR-/tmp}"}"}"
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CM_REAL_DELETE=0
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2018-04-22 11:19:03 +02:00
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if [[ $1 == -d ]]; then
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CM_REAL_DELETE=1
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shift
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fi
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2018-03-12 00:56:25 +01:00
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major_version=5
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shopt -s nullglob
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cache_dir=$CM_DIR/clipmenu.$major_version.$USER
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cache_file_prefix=$cache_dir/line_cache
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lock_file=$cache_dir/lock
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lock_timeout=2
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if [[ $1 == --help ]] || [[ $1 == -h ]]; then
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cat << 'EOF'
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clipdel deletes clipmenu entries matching a regex. By default, just lists what
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it would delete, pass -d to do it for real.
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".*" is special, it will just nuke the entire data directory, including the
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line caches and all other state.
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Arguments:
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-d Delete for real.
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Environment variables:
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- $CM_DIR: specify the base directory to store the cache dir in (default: $XDG_RUNTIME_DIR, $TMPDIR, or /tmp)
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EOF
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exit 0
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fi
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line_cache_files=( "$cache_file_prefix"_* )
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if (( ${#line_cache_files[@]} == 0 )); then
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printf '%s\n' "No line cache files found, no clips exist" >&2
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exit 0 # Well, this is a kind of success...
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fi
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# https://github.com/koalaman/shellcheck/issues/1141
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# shellcheck disable=SC2124
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2018-04-22 11:19:03 +02:00
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raw_pattern=$1
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2018-03-12 00:56:25 +01:00
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esc_pattern=${raw_pattern/\#/'\#'}
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2018-04-22 11:17:49 +02:00
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if ! [[ $raw_pattern ]]; then
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printf '%s\n' 'No pattern provided, see --help' >&2
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exit 2
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fi
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2018-03-12 00:56:25 +01:00
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exec {lock_fd}> "$lock_file"
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if (( CM_REAL_DELETE )) && [[ "$raw_pattern" == ".*" ]]; then
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flock -x -w "$lock_timeout" "$lock_fd" || exit
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rm -rf -- "$cache_dir"
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exit 0
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else
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mapfile -t matches < <(
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cat "${line_cache_files[@]}" | cut -d' ' -f2- | sort -u |
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sed -n "\\#${esc_pattern}#p"
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)
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if (( CM_REAL_DELETE )); then
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flock -x -w "$lock_timeout" "$lock_fd" || exit
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for match in "${matches[@]}"; do
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2018-03-12 01:24:37 +01:00
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ck=$(cksum <<< "$match")
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2018-03-12 00:56:25 +01:00
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rm -f -- "$cache_dir/$ck"
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done
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for file in "${line_cache_files[@]}"; do
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temp=$(mktemp)
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cut -d' ' -f2- < "$file" | sed "\\#${esc_pattern}#d" > "$temp"
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mv -- "$temp" "$file"
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done
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flock -u "$lock_fd"
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else
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if (( ${#matches[@]} )); then
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printf '%s\n' "${matches[@]}"
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fi
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fi
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fi
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