diff --git a/plugins/preview-tui b/plugins/preview-tui index 6d727114..94782539 100755 --- a/plugins/preview-tui +++ b/plugins/preview-tui @@ -11,8 +11,8 @@ # - wezterm (https://wezfurlong.org/wezterm), or # - QuickLook on WSL (https://github.com/QL-Win/QuickLook), or # - Windows Terminal (https://github.com/Microsoft/Terminal | https://aka.ms/terminal) with WSL, or -# - $TERMINAL set to a terminal (it's xterm by default). -# - less or $PAGER +# - $NNN_TERMINAL set to a terminal (it's xterm by default). +# - less or $NNN_PAGER # - tree or exa or ls # - mediainfo or file # - mktemp @@ -32,14 +32,14 @@ # - optional: djvulibre for djvu # - optional: glow or lowdown for markdown # - optional: w3m or lynx or elinks for html -# - optional: set/export ICONLOOKUP as 1 to enable file icons in front of directory previews with .iconlookup +# - optional: set/export NNN_ICONLOOKUP as 1 to enable file icons in front of directory previews with .iconlookup # Icons and colors are configureable in .iconlookup # - optional: scope.sh file viewer from ranger. # 1. drop scope.sh executable in $PATH -# 2. set/export $USE_SCOPE as 1 +# 2. set/export $NNN_SCOPE as 1 # - optional: pistol file viewer (https://github.com/doronbehar/pistol). # 1. install pistol -# 2. set/export $USE_PISTOL as 1 +# 2. set/export $NNN_PISTOL as 1 # # Usage: # You need to set a NNN_FIFO path and a key for the plugin with NNN_PLUG, @@ -59,9 +59,9 @@ # # The previews will be shown in a tmux split. If that isn't possible, it # will try to use a kitty terminal split. And as a final fallback, a -# different terminal window will be used ($TERMINAL). +# different terminal window will be used ($NNN_TERMINAL). # -# Tmux, wezterm and kitty users can configure $SPLIT to either "h" or "v" to set a +# Tmux, wezterm and kitty users can configure $NNN_SPLIT to either "h" or "v" to set a # 'h'orizontal split or a 'v'ertical split (as in, the line that splits the # windows will be horizontal or vertical). # @@ -72,7 +72,7 @@ # With ImageMagick installed, this terminal can use the icat kitten to display images. # Refer to kitty documentation for further details. # -# Wezterm should work out of the box. If `NNN_PREVIEW_IMGPROG` is not specified it will use +# Wezterm should work out of the box. If `NNN_PREVIEWIMGPROG` is not specified it will use # built in iTerm2 image protocol. # # Iterm2 users are recommended to use viu to view images without getting pixelated. @@ -83,101 +83,91 @@ # Shell: POSIX compliant # Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal, @WanderLanz -#SPLIT="$SPLIT" # you can set a permanent split here -#TERMINAL="$TERMINAL" # same goes for the terminal -SPLIT_SIZE="${SPLIT_SIZE:-50}" # split size in percentage for supported previewers -USE_SCOPE="${USE_SCOPE:-0}" -USE_PISTOL="${USE_PISTOL:-0}" -ICONLOOKUP="${ICONLOOKUP:-0}" -PAGER="${PAGER:-less -P?n -R}" -TMPDIR="${TMPDIR:-/tmp}" -BAT_STYLE="${BAT_STYLE:-numbers}" -BAT_THEME="${BAT_THEME:-ansi}" -# Consider setting NNN_PREVIEWDIR to $XDG_CACHE_HOME/nnn/previews if you want to keep previews on disk between reboots -NNN_PREVIEWDIR="${NNN_PREVIEWDIR:-$TMPDIR/nnn/previews}" -NNN_PREVIEWWIDTH="${NNN_PREVIEWWIDTH:-1920}" -NNN_PREVIEWHEIGHT="${NNN_PREVIEWHEIGHT:-1080}" -NNN_PARENT="${NNN_FIFO#*.}" -[ "$NNN_PARENT" -eq "$NNN_PARENT" ] 2>/dev/null || NNN_PARENT="" -FIFOPID="$TMPDIR/nnn-preview-tui-fifopid.$NNN_PARENT" -PREVIEWPID="$TMPDIR/nnn-preview-tui-pagerpid.$NNN_PARENT" -CURSEL="$TMPDIR/nnn-preview-tui-selection.$NNN_PARENT" -FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NNN_PARENT" -POSOFFSET="$TMPDIR/nnn-preview-tui-posoffset" -NNN_PREVIEW_IMGPROG="${NNN_PREVIEW_IMGPROG:-}" +NNN_SPLIT=${NNN_SPLIT:-} # Set permanent split direction +NNN_TERMINAL=${NNN_TERMINAL:-} # Set external terminal to be used +NNN_SPLITSIZE=${NNN_SPLITSIZE:-50} # Set previewer split size percentage +TMPDIR=${TMPDIR:-/tmp} +NNN_PARENT=${NNN_FIFO#*.} +[ "$NNN_PARENT" -eq "$NNN_PARENT" ] 2>/dev/null || NNN_PARENT="" # Make empty if non-numeric +ENVVARS=" +PWD=$PWD +PATH=$PATH +PREVIEW_MODE=$2 +NNN_FIFO=$NNN_FIFO +NNN_SCOPE=${NNN_SCOPE:-0} +NNN_PISTOL=${NNN_PISTOL:-0} +NNN_ICONLOOKUP=${NNN_ICONLOOKUP:-0} +NNN_PAGER=${NNN_PAGER:-less -P?n -R} +NNN_BATTHEME=${NNN_BATTHEME:-ansi} +NNN_BATSTYLE=${NNN_BATSTYLE:-numbers} +NNN_PREVIEWWIDTH=${NNN_PREVIEWWIDTH:-1920} +NNN_PREVIEWHEIGHT=${NNN_PREVIEWHEIGHT:-1080} +NNN_PREVIEWDIR=${NNN_PREVIEWDIR:-$TMPDIR/nnn/previews} +NNN_PREVIEWIMGPROG=${NNN_PREVIEWIMGPROG:-} +FIFOPID=$TMPDIR/nnn-preview-tui-fifopid.$NNN_PARENT +FIFOPATH=$TMPDIR/nnn-preview-tui-fifo.$NNN_PARENT +PREVIEWPID=$TMPDIR/nnn-preview-tui-previewpid.$NNN_PARENT +CURSEL=$TMPDIR/nnn-preview-tui-selection.$NNN_PARENT +FIFO_UEBERZUG=$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NNN_PARENT +POSOFFSET=$TMPDIR/nnn-preview-tui-posoffset" + +if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then + NNN_TERMINAL=tmux +elif [ -n "$KITTY_LISTEN_ON" ]; then + NNN_TERMINAL=kitty +elif [ -n "$WEZTERM_PANE" ]; then + NNN_TERMINAL=wezterm +elif [ -z "$NNN_TERMINAL" ] && [ "$TERM_PROGRAM" = "iTerm.app" ]; then + NNN_TERMINAL=iterm +elif [ -n "$WT_SESSION" ]; then + NNN_TERMINAL=winterm +else + NNN_TERMINAL="${NNN_TERMINAL:-xterm}" +fi + +if [ -z "$NNN_SPLIT" ] && [ $(($(tput lines) * 2)) -gt "$(tput cols)" ]; then + NNN_SPLIT='h' +elif [ "$NNN_SPLIT" != 'h' ]; then + NNN_SPLIT='v' +fi + +ENVVARS="$ENVVARS +NNN_SPLIT=$NNN_SPLIT +NNN_TERMINAL=$NNN_TERMINAL" +IFS=' +' +for env in $ENVVARS; do + export "${env?}" + case "$NNN_TERMINAL" in + tmux) ENVSTRING="$ENVSTRING -e '$env'" ;; + kitty) ENVSTRING="$ENVSTRING --env '$env'" ;; + winterm|iterm) ENVSTRING="$ENVSTRING \\\"$env\\\"" ;; + *) ENVSTRING="$ENVSTRING $env";; + esac +done; unset IFS exists() { type "$1" >/dev/null 2>&1 ;} pkill() { command pkill "$@" >/dev/null 2>&1 ;} -pidkill() { [ -f "$1" ] && kill "$(cat "$1")" >/dev/null 2>&1 ;} +pidkill() { [ -f "$1" ] && kill "$(cat "$1" 2>/dev/null)" >/dev/null 2>&1 ;} prompt() { printf "%b" "$@"; cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg" ;} start_preview() { - [ "$PAGER" = "most" ] && PAGER="less -R" - - if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then - TERMINAL=tmux - elif [ -n "$KITTY_LISTEN_ON" ]; then - TERMINAL=kitty - elif [ -n "$WEZTERM_PANE" ]; then - TERMINAL=wezterm - elif [ -z "$TERMINAL" ] && [ "$TERM_PROGRAM" = "iTerm.app" ]; then - TERMINAL=iterm - elif [ -n "$WT_SESSION" ]; then - TERMINAL=winterm - else - TERMINAL="${TERMINAL:-xterm}" - fi - - if [ -z "$SPLIT" ] && [ $(($(tput lines) * 2)) -gt "$(tput cols)" ]; then - SPLIT='h' - elif [ "$SPLIT" != 'h' ]; then - SPLIT='v' - fi - - case "$TERMINAL" in + case "$NNN_TERMINAL" in tmux) # tmux splits are inverted - if [ "$SPLIT" = "v" ]; then DSPLIT="h"; else DSPLIT="v"; fi - tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e "CURSEL=$CURSEL" \ - -e "TMPDIR=$TMPDIR" -e "FIFOPID=$FIFOPID" -e "POSOFFSET=$POSOFFSET" \ - -e "BAT_STYLE=$BAT_STYLE" -e "BAT_THEME=$BAT_THEME" -e "PREVIEWPID=$PREVIEWPID" \ - -e "PAGER=$PAGER" -e "ICONLOOKUP=$ICONLOOKUP" -e "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" \ - -e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \ - -e "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" -e "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \ - -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "NNN_PREVIEW_IMGPROG=$NNN_PREVIEW_IMGPROG" \ - -e "QLPATH=$2" -d"$DSPLIT" -p"$SPLIT_SIZE" "$0" "$1" ;; + if [ "$NNN_SPLIT" = "v" ]; then split="h"; else split="v"; fi + eval tmux split-window "$ENVSTRING" -d"$split" -p"$NNN_SPLITSIZE" "$0" "$1" 1 ;; kitty) # Setting the layout for the new window. It will be restored after the script ends. kitty @ goto-layout splits - # Trying to use kitty's integrated window management as the split window. All - # environmental variables that will be used in the new window must be explicitly passed. - kitty @ launch --no-response --title "nnn preview" --keep-focus \ - --cwd "$PWD" --env "PATH=$PATH" --env "NNN_FIFO=$NNN_FIFO" \ - --env "PREVIEW_MODE=1" --env "PAGER=$PAGER" --env "TMPDIR=$TMPDIR" \ - --env "USE_SCOPE=$USE_SCOPE" --env "SPLIT=$SPLIT" --env "TERMINAL=$TERMINAL"\ - --env "PREVIEWPID=$PREVIEWPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \ - --env "ICONLOOKUP=$ICONLOOKUP" --env "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \ - --env "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" --env "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \ - --env "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=$BAT_STYLE" \ - --env "BAT_THEME=$BAT_THEME" --env "FIFOPID=$FIFOPID" \ - --env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" ;; + # Trying to use kitty's integrated window management as the split window. + eval kitty @ launch --no-response --title "preview-tui" --keep-focus \ + --cwd "$PWD" "$ENVSTRING" --location "${NNN_SPLIT}split" "$0" "$1" 1 ;; wezterm) - if [ "$SPLIT" = "v" ]; then split="--horizontal"; else split="--bottom"; fi - PATH="$PATH" NNN_FIFO=$NNN_FIFO PREVIEW_MODE=1 CURSEL=$CURSEL TMPDIR=$TMPDIR \ - FIFOPID=$FIFOPID BAT_STYLE=$BAT_STYLE BAT_THEME=$BAT_THEME PREVIEWPID=$PREVIEWPID \ - PAGER="$PAGER" ICONLOOKUP=$ICONLOOKUP NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH \ - USE_SCOPE=$USE_SCOPE SPLIT=$SPLIT USE_PISTOL=$USE_PISTOL TERMINAL="$TERMINAL" \ - NNN_PREVIEWDIR=$NNN_PREVIEWDIR NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT \ - FIFO_UEBERZUG=$FIFO_UEBERZUG wezterm cli split-pane --cwd "$PWD" $split "$0" "$1"; - wezterm cli activate-pane-direction Prev ;; + if [ "$NNN_SPLIT" = "v" ]; then split="--horizontal"; else split="--bottom"; fi + wezterm cli split-pane --cwd "$PWD" $split "$0" "$1" 1 + wezterm cli activate-pane-direction Prev ;; iterm) - command="$SHELL -c 'cd $PWD; \ - PATH=\\\"$PATH\\\" NNN_FIFO=\\\"$NNN_FIFO\\\" PREVIEW_MODE=1 PAGER=\\\"$PAGER\\\" \ - USE_SCOPE=\\\"$USE_SCOPE\\\" SPLIT=\\\"$SPLIT\\\" TERMINAL=\\\"$TERMINAL\\\" \ - PREVIEWPID=\\\"$PREVIEWPID\\\" CURSEL=\\\"$CURSEL\\\" TMPDIR=\\\"$TMPDIR\\\" \ - ICONLOOKUP=\\\"$ICONLOOKUP\\\" NNN_PREVIEWHEIGHT=\\\"$NNN_PREVIEWHEIGHT\\\" \ - NNN_PREVIEWWIDTH=\\\"$NNN_PREVIEWWIDTH\\\" NNN_PREVIEWDIR=\\\"$NNN_PREVIEWDIR\\\" \ - USE_PISTOL=\\\"$USE_PISTOL\\\" BAT_STYLE=\\\"$BAT_STYLE\\\" \ - BAT_THEME=\\\"$BAT_THEME\\\" FIFOPID=\\\"$FIFOPID\\\" \\\"$0\\\" \\\"$1\\\"'" - if [ "$SPLIT" = "h" ]; then split="horizontally"; else split="vertically"; fi + command="$SHELL -c 'cd $PWD; env $ENVSTRING $0 $1 1'" + if [ "$NNN_SPLIT" = "h" ]; then split="horizontally"; else split="vertically"; fi osascript <<-EOF tell application "iTerm" tell current session of current window @@ -187,20 +177,13 @@ start_preview() { EOF ;; winterm) - if [ "$SPLIT" = "h" ]; then split="H"; else split="V"; fi - cmd.exe /c wt -w 0 sp -$split -s$((SPLIT_SIZE / 100)) bash -c "cd $PWD \; \ - PATH='$PATH' NNN_FIFO=$NNN_FIFO PREVIEW_MODE=1 CURSEL=$CURSEL TMPDIR=$TMPDIR \ - FIFOPID=$FIFOPID BAT_STYLE=$BAT_STYLE BAT_THEME=$BAT_THEME PREVIEWPID=$PREVIEWPID \ - PAGER='$PAGER' ICONLOOKUP=$ICONLOOKUP NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH \ - USE_SCOPE=$USE_SCOPE SPLIT=$SPLIT USE_PISTOL=$USE_PISTOL \ - NNN_PREVIEWDIR=$NNN_PREVIEWDIR NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT \ - FIFO_UEBERZUG=$FIFO_UEBERZUG QLPATH=$2 $0 $1" \; -w 0 mf previous - ;; + if [ "$NNN_SPLIT" = "h" ]; then split="H"; else split="V"; fi + cmd.exe /c wt -w 0 sp -$split -s"0.$NNN_SPLITSIZE" bash -c "cd $PWD \; \ + env $ENVSTRING QLPATH=$2 $0 $1 1" \; -w 0 mf previous 2>/dev/null ;; *) if [ -n "$2" ]; then - QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" & + env "$ENVSTRING" QUICKLOOK=1 QLPATH="$2" "$0" "$1" 1 & else - PREVIEWPID="$PREVIEWPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \ - FIFOPID="$FIFOPID" FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" & + env "$ENVSTRING" "$NNN_TERMINAL" -e "$0" "$1" 1 & fi ;; esac } @@ -228,28 +211,27 @@ fifo_pager() { cmd="$1" shift - # We use a FIFO to access $PAGER PID in jobs control - tmpfifopath="$TMPDIR/nnn-preview-tui-fifo.$$" - mkfifo "$tmpfifopath" || return + # We use a FIFO to access $NNN_PAGER PID in jobs control + mkfifo "$FIFOPATH" || return - $PAGER < "$tmpfifopath" & + $NNN_PAGER < "$FIFOPATH" & printf "%s" "$!" > "$PREVIEWPID" ( - exec > "$tmpfifopath" + exec > "$FIFOPATH" if [ "$cmd" = "pager" ]; then if exists bat; then bat --terminal-width="$cols" --decorations=always --color=always \ - --paging=never --style="$BAT_STYLE" --theme="$BAT_THEME" "$@" & + --paging=never --style="$NNN_BATSTYLE" --theme="$NNN_BATTHEME" "$@" & else - $PAGER "$@" & + $NNN_PAGER "$@" & fi else "$cmd" "$@" & fi ) - rm "$tmpfifopath" + rm "$FIFOPATH" } # Binary file: show file info inside the pager @@ -323,13 +305,13 @@ handle_ext() { preview_file() { clear # Trying to use pistol if it's available. - if [ "$USE_PISTOL" -ne 0 ] && exists pistol; then + if [ "$NNN_PISTOL" -ne 0 ] && exists pistol; then fifo_pager pistol "$1" return fi # Trying to use scope.sh if it's available. - if [ "$USE_SCOPE" -ne 0 ] && exists scope.sh; then + if [ "$NNN_SCOPE" -ne 0 ] && exists scope.sh; then fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" "True" return fi @@ -351,8 +333,8 @@ preview_file() { # Otherwise, falling back to the defaults. if [ -d "$1" ]; then cd "$1" || return - if [ "$ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then - [ "$SPLIT" = v ] && BSTR="\n" + if [ "$NNN_ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then + [ "$NNN_SPLIT" = v ] && BSTR="\n" # shellcheck disable=SC2012 ls -F --group-directories-first | head -n "$((lines - 3))" | "$(dirname "$0")"/.iconlookup -l "$cols" -B "$BSTR" -b " " elif exists tree; then @@ -422,18 +404,18 @@ generate_preview() { image_preview() { clear exec >/dev/tty - if [ "$TERMINAL" = "kitty" ]; then + if [ "$NNN_TERMINAL" = "kitty" ]; then # Kitty terminal users can use the native image preview method kitty +kitten icat --silent --scale-up --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" & - elif [ "$TERMINAL" = "wezterm" ] && [ -z "$NNN_PREVIEW_IMGPROG" ]; then + elif [ "$NNN_TERMINAL" = "wezterm" ] && [ -z "$NNN_PREVIEWIMGPROG" ]; then wezterm imgcat "$3" & - elif exists ueberzug && { [ -z "$NNN_PREVIEW_IMGPROG" ] || [ "$NNN_PREVIEW_IMGPROG" = "ueberzug" ] ;}; then + elif exists ueberzug && { [ -z "$NNN_PREVIEWIMGPROG" ] || [ "$NNN_PREVIEWIMGPROG" = "ueberzug" ] ;}; then ueberzug_layer "$1" "$2" "$3" && return - elif exists catimg && { [ -z "$NNN_PREVIEW_IMGPROG" ] || [ "$NNN_PREVIEW_IMGPROG" = "catimg" ] ;}; then + elif exists catimg && { [ -z "$NNN_PREVIEWIMGPROG" ] || [ "$NNN_PREVIEWIMGPROG" = "catimg" ] ;}; then catimg "$3" & - elif exists viu && { [ -z "$NNN_PREVIEW_IMGPROG" ] || [ "$NNN_PREVIEW_IMGPROG" = "viu" ] ;}; then + elif exists viu && { [ -z "$NNN_PREVIEWIMGPROG" ] || [ "$NNN_PREVIEWIMGPROG" = "viu" ] ;}; then viu -t "$3" & - elif exists chafa && { [ -z "$NNN_PREVIEW_IMGPROG" ] || [ "$NNN_PREVIEW_IMGPROG" = "chafa" ] ;}; then + elif exists chafa && { [ -z "$NNN_PREVIEWIMGPROG" ] || [ "$NNN_PREVIEWIMGPROG" = "chafa" ] ;}; then chafa "$3" & else fifo_pager print_bin_info "$3" && return @@ -475,8 +457,8 @@ preview_fifo() { pkill -P "$$" } -if [ "$PREVIEW_MODE" ]; then - if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then +if [ "$PREVIEW_MODE" -eq 1 ] 2>/dev/null; then + if [ "$NNN_TERMINAL" != "kitty" ] && exists ueberzug; then mkfifo "$FIFO_UEBERZUG" tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json & fi @@ -492,10 +474,10 @@ if [ "$PREVIEW_MODE" ]; then else if [ ! -r "$NNN_FIFO" ]; then clear - prompt "No FIFO available! (\$NNN_FIFO='$NNN_FIFO')\nPlease read Usage in preview-tui." + prompt "No FIFO available! (\$NNN_FIFO='$NNN_FIFO')\nPlease read Usage in '$0'." elif [ "$KITTY_WINDOW_ID" ] && [ -z "$TMUX" ] && [ -z "$KITTY_LISTEN_ON" ]; then clear - prompt "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui." + prompt "\$KITTY_LISTEN_ON not set!\nPlease read Usage in '$0'." else toggle_preview "$1" & fi