mirror of
https://github.com/roosta/tmux-fuzzback.git
synced 2026-09-10 07:36:29 -04:00
068dc69d18
Due to missing shebang in the preview.sh file, the script failed if user used different shell than bash (for example zsh).
76 lines
1.7 KiB
Bash
Executable file
76 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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IFS=$'\n\t'
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REVERSE="\x1b[7m"
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RESET="\x1b[m"
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# Pull in helpers
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# shellcheck source=helpers.sh
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CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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. "$CURRENT_DIR/helpers.sh"
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get_line_number() {
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local position
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position=$(echo "$1" | cut -d':' -f2 | xargs)
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echo "$position"
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}
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highlight_line() {
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local content linum
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content="$1"
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linum="$2"
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awk "{ \
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if (NR == $linum) \
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{ gsub(/\x1b[[0-9;]*m/, \"&$REVERSE\"); printf(\"$REVERSE%s\n$RESET\", \$0); } \
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else printf(\"$RESET%s\n\", \$0); \
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}" <<< "$content"
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}
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reverse_n() {
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local max min num;
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max="$1"
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min="$2"
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num="$3"
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max_min=$((max + min))
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echo $((max_min - num));
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}
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preview() {
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local linum total half_lines start end total fuzzback_finder preview_lines
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fuzzback_finder="$(tmux_get '@fuzzback-finder' 'fzf')"
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match="$2"
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capture_file="$1"
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if [ "$fuzzback_finder" = "sk" ]; then
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preview_lines=$LINES
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else
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preview_lines=$FZF_PREVIEW_LINES
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fi
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# trim trailing newlines
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trimmed=$(printf "%s" "$(< "$capture_file")")
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total=$(wc -l <<< "$trimmed")
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half_lines=$(( preview_lines / 2))
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line_rev=$(get_line_number "$match")
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linum=$(reverse_n "$total" 1 "$line_rev")
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[[ $(( linum - half_lines )) -lt 1 ]] && start=1 || start=$(( linum - half_lines ))
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[[ $(( linum + half_lines )) -gt $total ]] && end=$total || end=$(( linum + half_lines ))
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[[ $start -eq 1 && $end -ne $total ]] && end=$preview_lines
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hl=$(highlight_line "$trimmed" "$linum")
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sed -n "${start},${end}p" <<< "$hl"
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}
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main() {
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if [ "$#" != "2" ]; then
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echo "preview.sh takes exactly two arguments" >&2;
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exit 1;
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else
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preview "$@"
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fi
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}
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main "$@"
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