74 lines
1.9 KiB
Bash
Executable File
74 lines
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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REVERSE="\x1b[7m"
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RESET="\x1b[m"
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if [ -z "$1" ]; then
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echo "usage: $0 FILENAME:TAGFILE:EXCMD"
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exit 1
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fi
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IFS=':' read -r FILE TAGFILE EXCMD <<< "$*"
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# Complete file paths which are relative to the given tag file
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if [ "${FILE:0:1}" != "/" ]; then
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FILE="$(dirname "${TAGFILE}")/${FILE}"
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fi
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if [ ! -r "$FILE" ]; then
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echo "File not found ${FILE}"
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exit 1
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fi
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# If users aren't using vim, they are probably using neovim
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if command -v vim > /dev/null; then
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VIMNAME="vim"
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elif command -v nvim > /dev/null; then
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VIMNAME="nvim"
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else
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echo "Cannot preview tag: vim or nvim unavailable"
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exit 1
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fi
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CENTER="$("${VIMNAME}" -R -i NONE -u NONE -e -m -s "${FILE}" \
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-c "set nomagic" \
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-c "${EXCMD}" \
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-c 'let l=line(".") | new | put =l | print | qa!')" || exit
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START_LINE="$(( CENTER - FZF_PREVIEW_LINES / 2 ))"
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if (( START_LINE <= 0 )); then
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START_LINE=1
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fi
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END_LINE="$(( START_LINE + FZF_PREVIEW_LINES - 1 ))"
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# Sometimes bat is installed as batcat.
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if command -v batcat > /dev/null; then
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BATNAME="batcat"
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elif command -v bat > /dev/null; then
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BATNAME="bat"
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fi
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if [ -z "$FZF_PREVIEW_COMMAND" ] && [ "${BATNAME:+x}" ]; then
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${BATNAME} --style="${BAT_STYLE:-numbers}" \
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--color=always \
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--pager=never \
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--wrap=never \
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--terminal-width="${FZF_PREVIEW_COLUMNS}" \
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--line-range="${START_LINE}:${END_LINE}" \
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--highlight-line="${CENTER}" \
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"$FILE"
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exit $?
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fi
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DEFAULT_COMMAND="highlight -O ansi -l {} || coderay {} || rougify {} || cat {}"
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CMD=${FZF_PREVIEW_COMMAND:-$DEFAULT_COMMAND}
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CMD=${CMD//{\}/$(printf %q "$FILE")}
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eval "$CMD" 2> /dev/null | awk "{ \
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if (NR >= $START_LINE && NR <= $END_LINE) { \
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if (NR == $CENTER) \
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{ gsub(/\x1b[[0-9;]*m/, \"&$REVERSE\"); printf(\"$REVERSE%s\n$RESET\", \$0); } \
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else printf(\"$RESET%s\n\", \$0); \
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} \
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}"
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