# Shell: POSIX compliant
# Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal
-SPLIT="$SPLIT" # you can set a permanent split here
-TERMINAL="$TERMINAL" # same goes for the terminal
+#SPLIT="$SPLIT" # you can set a permanent split here
+#TERMINAL="$TERMINAL" # same goes for the terminal
USE_SCOPE="${USE_SCOPE:-0}"
USE_PISTOL="${USE_PISTOL:-0}"
PAGER="${PAGER:-less -P?n -R}"
TMPDIR="${TMPDIR:-/tmp}"
+BAT_STYLE="${BAT_STYLE:-numbers}"
+NNN_PARENT="${NNN_FIFO#*.}"
+FIFOPID="$TMPDIR/nnn-preview-tui-fifopid.$NNN_PARENT"
+PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NNN_PARENT"
+IMGPID="$TMPDIR/nnn-preview-tui-imgpid.$NNN_PARENT"
+CURSEL="$TMPDIR/nnn-preview-tui-selection.$NNN_PARENT"
+FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NNN_PARENT"
-startpreview() {
- NUMPREVIEWTUI="$(($(find "$TMPDIR" -maxdepth 1 -name 'nnn-preview-tui-pagerpid*' 2>/dev/null | wc -l) + 1))"
- PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NUMPREVIEWTUI"
- IMGPID="$TMPDIR/nnn-preview-tui-gifpid.$NUMPREVIEWTUI"
- CURSEL="$TMPDIR/nnn-preview-tui-selection.$NUMPREVIEWTUI"
- FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NUMPREVIEWTUI"
-
+start_preview() {
[ "$PAGER" = "most" ] && PAGER="less -R"
if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then
SPLIT='v'
fi
- if [ "$TERMINAL" = "tmux" ]; then
- # tmux splits are inverted
- if [ "$SPLIT" = "v" ]; then SPLIT="h"; else SPLIT="v"; fi
-
- tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e "PAGER=$PAGER" \
- -e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
- -e "BAT_STYLE=${BAT_STYLE:-numbers}" -e "PAGERPID=$PAGERPID" \
- -e "IMGPID=$IMGPID" -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" \
- -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$QLPATH" -d"$SPLIT" "$0" "$1"
- elif [ "$TERMINAL" = "kitty" ]; then
- # Setting the layout for the new window. It will be restored after the
- # script ends.
- kitty @ goto-layout splits >/dev/null
-
- # 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 "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=${BAT_STYLE:-numbers}" \
- --env "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
- --env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" >/dev/null
- elif [ -n "$2" ]; then
- QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" >/dev/null &
- else
- PAGERPID="$PAGERPID" IMGPID="$IMGPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
- FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" 2>/dev/null &
- fi
-}
+ case "$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 "PAGER=$PAGER" \
+ -e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
+ -e "BAT_STYLE=$BAT_STYLE" -e "PAGERPID=$PAGERPID" -e "FIFOPID=$FIFOPID" \
+ -e "IMGPID=$IMGPID" -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" \
+ -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$QLPATH" -d"$DSPLIT" "$0" "$1" ;;
+ kitty) # Setting the layout for the new window. It will be restored after the script ends.
+ kitty @ goto-layout splits
+ # Trying to use kitty's integrated window management as the split window. All
+ # environmental variables that will be used in the new window must be explicitly passed.
+ kitty @ launch --no-response --title "nnn preview" --keep-focus \
+ --cwd "$PWD" --env "PATH=$PATH" --env "NNN_FIFO=$NNN_FIFO" --env "FIFOPID=$FIFOPID" \
+ --env "PREVIEW_MODE=1" --env "PAGER=$PAGER" --env "TMPDIR=$TMPDIR" \
+ --env "USE_SCOPE=$USE_SCOPE" --env "SPLIT=$SPLIT" --env "TERMINAL=$TERMINAL"\
+ --env "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=${BAT_STYLE:-numbers}" \
+ --env "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
+ --env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" ;;
+ *) if [ -n "$2" ]; then
+ QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" &
+ else
+ PAGERPID="$PAGERPID" IMGPID="$IMGPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
+ FIFOPID="$FIFOPID" FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" &
+ fi ;;
+ esac
+} >/dev/null 2>&1
-togglepreview() {
+toggle_preview() {
if exists QuickLook.exe; then
QLPATH="QuickLook.exe"
elif exists Bridge.exe; then
QLPATH="Bridge.exe"
fi
- if pkill -fx "cat $NNN_FIFO" >/dev/null; then
- if [ -n "$QLPATH" ] && stat "$1" >/dev/null 2>&1; then
- f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" &
+ if pkill -P "$(cat "$FIFOPID")"; then
+ if [ -n "$QLPATH" ] && stat "$1"; then
+ f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
fi
else
- startpreview "$1" "$QLPATH"
+ start_preview "$1" "$QLPATH"
fi
-}
+} >/dev/null 2>&1
exists() {
- type "$1" >/dev/null 2>&1
+ type "$1" >/dev/null
}
fifo_pager() {
if [ "$cmd" = "pager" ]; then
if exists bat; then
bat --terminal-width="$(tput cols)" --decorations=always --color=always \
- --paging=never --style="${BAT_STYLE:-numbers}" "$@" 2>/dev/null &
+ --paging=never --style="$BAT_STYLE" "$@" &
else
$PAGER "$@" &
fi
)
rm "$tmpfifopath"
-}
+} 2>/dev/null
# Binary file: show file info inside the pager
print_bin_info() {
printf -- "-------- \033[1;31mBinary file\033[0m --------\n"
if exists mediainfo; then
- mediainfo "$1" 2>/dev/null
+ mediainfo "$1"
else
file -b "$1"
fi
-}
+} 2>/dev/null
handle_mime() {
case "$2" in
# Trying to use scope.sh if it's available.
if [ "$USE_SCOPE" -ne 0 ] && exists scope.sh; then
- fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" \
- "True" 2>/dev/null
+ fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" "True"
return
fi
# Use QuickLook if it's available.
if [ -n "$QUICKLOOK" ]; then
- stat "$1" >/dev/null 2>&1 && f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" &
+ stat "$1" && f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
return
fi
- # Detecting the exact type of the file: the encoding, mime type, and
- # extension in lowercase.
+ # Detecting the exact type of the file: the encoding, mime type, and extension in lowercase.
encoding="$(file -bL --mime-encoding -- "$1")"
mimetype="$(file -bL --mime-type -- "$1")"
ext="${1##*.}"
- if [ -n "$ext" ]; then
- ext="$(printf "%s" "${ext}" | tr '[:upper:]' '[:lower:]')"
- fi
+ [ -n "$ext" ] && ext="$(printf "%s" "${ext}" | tr '[:upper:]' '[:lower:]')"
lines=$(tput lines)
cols=$(tput cols)
if exists tree; then
fifo_pager tree --filelimit "$(find . -maxdepth 1 | wc -l)" -L 3 -C -F --dirsfirst --noreport
elif exists exa; then
- exa -G --colour=always 2>/dev/null
+ exa -G --group-directories-first --colour=always
else
- fifo_pager ls -F --directories-first --color=always
+ fifo_pager ls -F --group-directories-first --color=always
fi
elif [ "${encoding#*)}" = "binary" ]; then
handle_mime "$1" "$mimetype" "$ext" "bin"
else
handle_mime "$1" "$mimetype" "$ext"
fi
-}
+} 2>/dev/null
image_preview() {
if [ "$TERMINAL" = "kitty" ]; then
- # Kitty terminal users can use the native image preview method although one might consider
- # installing ueberzug and moving the ueberzug clause to the top since it performs alot better.
+ # Kitty terminal users can use the native image preview method
kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" &
- printf "%s" "$!" > "$IMGPID"
elif [ -n "$QLPATH" ] && stat "$3" >/dev/null 2>&1; then
- f="$(wslpath -w "$3" 2>&1)" && "$QLPATH" "$f" &
+ f="$(wslpath -w "$3")" && "$QLPATH" "$f" && return
elif exists ueberzug; then
- ueberzug_layer "$1" "$2" "$3"
+ ueberzug_layer "$1" "$2" "$3" && return
elif exists catimg; then
catimg "$3" &
- printf "%s" "$!" > "$IMGPID"
elif exists viu; then
viu -t "$3" &
- printf "%s" "$!" > "$IMGPID"
else
- fifo_pager print_bin_info "$3"
+ fifo_pager print_bin_info "$3" && return
fi
-}
+ printf "%s" "$!" > "$IMGPID"
+} 2>/dev/null
ueberzug_layer() {
- printf '{"action": "add", "identifier": "nnn_ueberzug", "x": 0, "y": 0, "width": "%s", "height": "%s", "scaler": "fit_contain", "path": "%s"}\n' "$1" "$2" "$3" > "$FIFO_UEBERZUG"
+ printf '{"action": "add", "identifier": "nnn_ueberzug", "x": 0, "y": 0, "width": "%d", "height": "%d", "scaler": "fit_contain", "path": "%s"}\n' "$1" "$2" "$3" > "$FIFO_UEBERZUG"
}
ueberzug_remove() {
ueberzug_refresh() {
clear
- kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1
- pkill -P "$$" >/dev/null 2>&1
- pkill -f -n preview-tui-ext >/dev/null 2>&1
+ kill "$(cat "$IMGPID")"
+ kill "$(cat "$PAGERPID")"
+ pkill -P "$$"
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
- printf "\n" > "$NNN_FIFO"
- preview_fifo 2>/dev/null &
+ cat "$CURSEL" > "$NNN_FIFO"
+ preview_fifo &
preview_file "$(cat "$CURSEL")"
- wait
-}
+ wait "$!"
+} 2>/dev/null
preview_fifo() {
- # use cat instead of 'exec <' to avoid issues with dash shell
- # shellcheck disable=SC2002
- cat "$NNN_FIFO" |\
+ printf "%s" "$$" > "$FIFOPID"
while read -r selection; do
- kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1
- kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1
+ kill "$(cat "$IMGPID")"
+ kill "$(cat "$PAGERPID")"
[ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
preview_file "$selection"
printf "%s" "$selection" > "$CURSEL"
- done
- kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1
- kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1
- [ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
- rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" >/dev/null 2>&1
- pkill -P "$$" >/dev/null 2>&1
-}
+ done < "$NNN_FIFO"
+} 2>/dev/null
if [ "$PREVIEW_MODE" ]; then
if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then
mkfifo "$FIFO_UEBERZUG"
- trap 'ueberzug_refresh; rm "$FIFO_UEBERZUG"' WINCH
+ trap 'ueberzug_refresh' WINCH
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
fi
- trap 'rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" 2>/dev/null' INT HUP EXIT
+ printf "%s" "$PWD/$1" > "$CURSEL"
preview_file "$PWD/$1"
- printf "%s" "$PWD/$1" > "$CURSEL" &
- preview_fifo 2>/dev/null &
- wait
+ preview_fifo &
+ wait "$!"
+ rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" "$FIFOPID" 2>/dev/null
+ pkill -P "$$"
else
if [ ! -r "$NNN_FIFO" ]; then
clear
printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui."
cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
else
- togglepreview "$1" &
+ toggle_preview "$1" &
fi
fi
# Shell: POSIX compliant
# Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal
-SPLIT="$SPLIT" # you can set a permanent split here
-TERMINAL="$TERMINAL" # same goes for the terminal
+#SPLIT="$SPLIT" # you can set a permanent split here
+#TERMINAL="$TERMINAL" # same goes for the terminal
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}"
# 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}"
-
-startpreview() {
- NUMPREVIEWTUI="$(($(find "$TMPDIR" -maxdepth 1 -name 'nnn-preview-tui-pagerpid*' 2>/dev/null | wc -l) + 1))"
- PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NUMPREVIEWTUI"
- IMGPID="$TMPDIR/nnn-preview-tui-gifpid.$NUMPREVIEWTUI"
- CURSEL="$TMPDIR/nnn-preview-tui-selection.$NUMPREVIEWTUI"
- FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NUMPREVIEWTUI"
-
+NNN_PARENT="${NNN_FIFO#*.}"
+FIFOPID="$TMPDIR/nnn-preview-tui-fifopid.$NNN_PARENT"
+PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NNN_PARENT"
+IMGPID="$TMPDIR/nnn-preview-tui-imgpid.$NNN_PARENT"
+CURSEL="$TMPDIR/nnn-preview-tui-selection.$NNN_PARENT"
+FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NNN_PARENT"
+
+start_preview() {
[ "$PAGER" = "most" ] && PAGER="less -R"
if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then
SPLIT='v'
fi
- if [ "$TERMINAL" = "tmux" ]; then
- # tmux splits are inverted
- if [ "$SPLIT" = "v" ]; then SPLIT="h"; else SPLIT="v"; fi
-
- tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e "PAGER=$PAGER" \
- -e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
- -e "BAT_STYLE=${BAT_STYLE:-numbers}" -e "PAGERPID=$PAGERPID" \
- -e "IMGPID=$IMGPID" -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" \
- -e "ICONLOOKUP=$ICONLOOKUP" -e "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
- -e "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" -e "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
- -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$2" -d"$SPLIT" "$0" "$1"
- elif [ "$TERMINAL" = "kitty" ]; then
- # Setting the layout for the new window. It will be restored after the
- # script ends.
- kitty @ goto-layout splits >/dev/null
-
- # 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 "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=${BAT_STYLE:-numbers}" \
- --env "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
- --env "ICONLOOKUP=$ICONLOOKUP" --env "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
- --env "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" --env "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
- --env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" >/dev/null
- elif [ -n "$2" ]; then
- QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" >/dev/null &
- else
- PAGERPID="$PAGERPID" IMGPID="$IMGPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
- FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" 2>/dev/null &
- fi
-}
+ case "$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 "PAGER=$PAGER" \
+ -e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
+ -e "BAT_STYLE=$BAT_STYLE" -e "PAGERPID=$PAGERPID" -e "FIFOPID=$FIFOPID" \
+ -e "IMGPID=$IMGPID" -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" \
+ -e "ICONLOOKUP=$ICONLOOKUP" -e "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
+ -e "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" -e "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
+ -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$2" -d"$DSPLIT" "$0" "$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 "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=$BAT_STYLE" --env "FIFOPID=$FIFOPID" \
+ --env "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
+ --env "ICONLOOKUP=$ICONLOOKUP" --env "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
+ --env "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" --env "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
+ --env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" ;;
+ *) if [ -n "$2" ]; then
+ QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" &
+ else
+ PAGERPID="$PAGERPID" IMGPID="$IMGPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
+ FIFOPID="$FIFOPID" FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" &
+ fi ;;
+ esac
+} >/dev/null 2>&1
-togglepreview() {
+toggle_preview() {
if exists QuickLook.exe; then
QLPATH="QuickLook.exe"
elif exists Bridge.exe; then
QLPATH="Bridge.exe"
fi
- if pkill -fx "cat $NNN_FIFO" >/dev/null; then
- if [ -n "$QLPATH" ] && stat "$1" >/dev/null 2>&1; then
- f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" &
+ if pkill -P "$(cat "$FIFOPID")"; then
+ if [ -n "$QLPATH" ] && stat "$1"; then
+ f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
fi
else
- startpreview "$1" "$QLPATH"
+ start_preview "$1" "$QLPATH"
fi
-}
+} >/dev/null 2>&1
exists() {
- type "$1" >/dev/null 2>&1
+ type "$1" >/dev/null
}
fifo_pager() {
if [ "$cmd" = "pager" ]; then
if exists bat; then
bat --terminal-width="$(tput cols)" --decorations=always --color=always \
- --paging=never --style="${BAT_STYLE:-numbers}" "$@" 2>/dev/null &
+ --paging=never --style="$BAT_STYLE" "$@" &
else
$PAGER "$@" &
fi
)
rm "$tmpfifopath"
-}
+} 2>/dev/null
# Binary file: show file info inside the pager
print_bin_info() {
printf -- "-------- \033[1;31mBinary file\033[0m --------\n"
if exists mediainfo; then
- mediainfo "$1" 2>/dev/null
+ mediainfo "$1"
else
file -b "$1"
fi
# Trying to use scope.sh if it's available.
if [ "$USE_SCOPE" -ne 0 ] && exists scope.sh; then
- fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" \
- "True" 2>/dev/null
+ fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" "True"
return
fi
# Use QuickLook if it's available.
if [ -n "$QUICKLOOK" ]; then
- stat "$1" >/dev/null 2>&1 && f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" &
+ stat "$1" && f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
return
fi
- # Detecting the exact type of the file: the encoding, mime type, and
- # extension in lowercase.
+ # Detecting the exact exists of the file: the encoding, mime type, and extension in lowercase.
encoding="$(file -bL --mime-encoding -- "$1")"
mimetype="$(file -bL --mime-type -- "$1")"
ext="${1##*.}"
if [ -d "$1" ]; then
cd "$1" || return
if [ "$ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then
- [ "$SPLIT" = h ] && [ "$TERMINAL" != "kitty" ] && BSTR="\n"
- [ "$SPLIT" = v ] && [ "$TERMINAL" = "kitty" ] && BSTR="\n"
+ [ "$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
fifo_pager tree --filelimit "$(find . -maxdepth 1 | wc -l)" -L 3 -C -F --dirsfirst --noreport
elif exists exa; then
- exa -G --group-directories-first --colour=always 2>/dev/null
+ exa -G --group-directories-first --colour=always
else
fifo_pager ls -F --group-directories-first --color=always
fi
else
handle_mime "$1" "$mimetype" "$ext"
fi
-}
+} 2>/dev/null
generate_preview() {
- if [ -n "$QLPATH" ] && stat "$3" >/dev/null 2>&1; then
- f="$(wslpath -w "$3" 2>&1)" && "$QLPATH" "$f" &
+ if [ -n "$QLPATH" ] && stat "$3"; then
+ f="$(wslpath -w "$3")" && "$QLPATH" "$f" &
elif [ ! -f "$NNN_PREVIEWDIR/$3.jpg" ] || [ -n "$(find -L "$3" -newer "$NNN_PREVIEWDIR/$3.jpg")" ]; then
mkdir -p "$NNN_PREVIEWDIR/${3%/*}"
case $4 in
- audio) ffmpeg -i "$3" -filter_complex "scale=iw*min(1\,min($NNN_PREVIEWWIDTH/iw\,ih)):-1" "$NNN_PREVIEWDIR/$3.jpg" -y >/dev/null 2>&1 ;;
- epub) gnome-epub-thumbnailer "$3" "$NNN_PREVIEWDIR/$3.jpg" >/dev/null 2>&1 ;;
- font) fontpreview -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" >/dev/null 2>&1 ;;
+ audio) ffmpeg -i "$3" -filter_complex "scale=iw*min(1\,min($NNN_PREVIEWWIDTH/iw\,ih)):-1" "$NNN_PREVIEWDIR/$3.jpg" -y ;;
+ epub) gnome-epub-thumbnailer "$3" "$NNN_PREVIEWDIR/$3.jpg" ;;
+ font) fontpreview -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" ;;
gif) if exists ueberzug && exists convert && [ "$TERMINAL" != "kitty" ]; then
if [ ! -d "$NNN_PREVIEWDIR/$3" ]; then
mkdir -p "$NNN_PREVIEWDIR/$3"
return
fi ;;
image) convert "$3" -flatten -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$NNN_PREVIEWDIR/$3.jpg" ;;
- office) libreoffice --convert-to jpg "$3" --outdir "$NNN_PREVIEWDIR/${3%/*}" > /dev/null 2>&1
+ office) libreoffice --convert-to jpg "$3" --outdir "$NNN_PREVIEWDIR/${3%/*}"
filename="$(printf "%s" "${3##*/}" | cut -d. -f1)"
mv "$NNN_PREVIEWDIR/${3%/*}/$filename.jpg" "$NNN_PREVIEWDIR/$3.jpg" ;;
- pdf) pdftoppm -jpeg -f 1 -singlefile "$3" "$NNN_PREVIEWDIR/$3" >/dev/null 2>&1 ;;
- video) ffmpegthumbnailer -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" >/dev/null 2>&1 || rm "$NNN_PREVIEWDIR/$3.jpg" ;;
+ pdf) pdftoppm -jpeg -f 1 -singlefile "$3" "$NNN_PREVIEWDIR/$3" ;;
+ video) ffmpegthumbnailer -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" || rm "$NNN_PREVIEWDIR/$3.jpg" ;;
esac
fi
if [ -f "$NNN_PREVIEWDIR/$3.jpg" ]; then
else
fifo_pager print_bin_info "$3"
fi
-}
+} >/dev/null 2>&1
image_preview() {
clear
if [ "$TERMINAL" = "kitty" ]; then
- # Kitty terminal users can use the native image preview method although one might consider
- # installing ueberzug and moving the ueberzug clause to the top since it performs alot better.
+ # Kitty terminal users can use the native image preview method
kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" &
- printf "%s" "$!" > "$IMGPID"
elif exists ueberzug; then
- ueberzug_layer "$1" "$2" "$3"
+ ueberzug_layer "$1" "$2" "$3" && return
elif exists catimg; then
catimg "$3" &
- printf "%s" "$!" > "$IMGPID"
elif exists viu; then
viu -t "$3" &
- printf "%s" "$!" > "$IMGPID"
else
- fifo_pager print_bin_info "$3"
+ fifo_pager print_bin_info "$3" && return
fi
-}
+ printf "%s" "$!" > "$IMGPID"
+} 2>/dev/null
ueberzug_layer() {
- printf '{"action": "add", "identifier": "nnn_ueberzug", "x": 0, "y": 0, "width": "%s", "height": "%s", "scaler": "fit_contain", "path": "%s"}\n' "$1" "$2" "$3" > "$FIFO_UEBERZUG"
+ printf '{"action": "add", "identifier": "nnn_ueberzug", "x": 0, "y": 0, "width": "%d", "height": "%d", "scaler": "fit_contain", "path": "%s"}\n' "$1" "$2" "$3" > "$FIFO_UEBERZUG"
}
ueberzug_remove() {
ueberzug_refresh() {
clear
- kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1
- pkill -P "$$" >/dev/null 2>&1
- pkill -f -n preview-tui-ext >/dev/null 2>&1
+ kill "$(cat "$IMGPID")"
+ kill "$(cat "$PAGERPID")"
+ pkill -P "$$"
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
- printf "\n" > "$NNN_FIFO"
- preview_fifo 2>/dev/null &
+ cat "$CURSEL" > "$NNN_FIFO"
+ preview_fifo &
preview_file "$(cat "$CURSEL")"
- wait
-}
+ wait "$!"
+} 2>/dev/null
preview_fifo() {
- # use cat instead of 'exec <' to avoid issues with dash shell
- # shellcheck disable=SC2002
- cat "$NNN_FIFO" |\
+ printf "%s" "$$" > "$FIFOPID"
while read -r selection; do
- kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1
- kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1
+ kill "$(cat "$IMGPID")"
+ kill "$(cat "$PAGERPID")"
[ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
preview_file "$selection"
printf "%s" "$selection" > "$CURSEL"
- done
- kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1
- kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1
- [ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
- rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" >/dev/null 2>&1
- pkill -P "$$" >/dev/null 2>&1
-}
+ done < "$NNN_FIFO"
+} 2>/dev/null
if [ "$PREVIEW_MODE" ]; then
if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then
mkfifo "$FIFO_UEBERZUG"
- trap 'ueberzug_refresh; rm "$FIFO_UEBERZUG"' WINCH
+ trap 'ueberzug_refresh' WINCH
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
fi
- trap 'rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" 2>/dev/null' INT HUP EXIT
+ printf "%s" "$PWD/$1" > "$CURSEL"
preview_file "$PWD/$1"
- printf "%s" "$PWD/$1" > "$CURSEL" &
- preview_fifo 2>/dev/null &
- wait
+ preview_fifo &
+ wait "$!"
+ rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" "$FIFOPID" 2>/dev/null
+ pkill -P "$$"
else
if [ ! -r "$NNN_FIFO" ]; then
clear
printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui-ext."
cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
else
- togglepreview "$1" &
+ toggle_preview "$1" &
fi
fi