bbce69f036
For a vsed call to `nf' files and `nr' regex, the old code will make `2 * nf * nr' digest calls. the new code will make `nf * (nr + 1)' digest calls. Refereance: https://github.com/void-linux/void-packages/issues/11238
67 lines
1.4 KiB
Bash
67 lines
1.4 KiB
Bash
# Helper function for calling sed on files and checking if the
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# file is actually changed
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#
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# NOTE: this will not check if the input is valid, you can problably
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# make it execute arbirtrary commands via passing '; cmd' to a vsed
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# call.
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vsed() {
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local files=() regexes=() OPTIND OPTSTRING="ie:" has_inline=
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eval set -- $(getopt -s bash "$OPTSTRING" "$@");
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while getopts "$OPTSTRING" opt; do
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case $opt in
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i) has_inline=1 ;;
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e) regexes+=("$OPTARG") ;;
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*) ;;
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esac
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done
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if ! [ "$has_inline" ]; then
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msg_red "$pkgver: vsed: you must specify -i.\n"
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return 1
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fi
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shift $(($OPTIND - 1))
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if [ ${#regexes[@]} -eq 0 ] && [ $# -ge 2 ]; then
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regexes+=("$1")
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shift
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fi
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if [ ${#regexes[@]} -eq 0 ]; then
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msg_red "$pkgver: vsed: no regexes specified.\n"
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return 1
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fi
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for i; do
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files+=("$i")
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done
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if [ ${#files[@]} -eq 0 ]; then
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msg_red "$pkgver: vsed: no files specified.\n"
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return 1
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fi
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for f in "${files[@]}"; do
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olddigest="$($XBPS_DIGEST_CMD "$f")"
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olddigest="${olddigest%% *}"
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for rx in "${regexes[@]}"; do
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sed -i "$f" -e "$rx" || {
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msg_red "$pkgver: vsed: sed call failed with regex \"$rx\" on file \"$f\"\n"
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return 1
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}
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newdigest="$($XBPS_DIGEST_CMD "$f")"
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newdigest="${newdigest%% *}"
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if [ "$olddigest" = "$newdigest" ]; then
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msg_warn "$pkgver: vsed: regex \"$rx\" didn't change file \"$f\"\n"
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fi
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olddigest="${newdigest}"
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done
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done
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}
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