bin/b: add audio duration, improve compression & waveform display

.local/bin/scripts/b

@@ -1,6 +1,6 @@
 #!/bin/bash
 # [b]rowse - overview of given files or current directory
-# depends: tput stat bat checkaccess
+# depends: tput stat bat checkaccess(in dotfiles)
 # optdepends: timg, neovim (compressed files), pdftoppm (PDF), mtn (video)
 # args: files to inspect
 #
@@ -12,7 +12,7 @@
 # - text files are displayed through bat
 # Automatically requests elevation through sudo when needed
 
-set -eo pipefail
+set -o pipefail
 for last; do true; done
 last=${last:-.}
 
@@ -23,10 +23,11 @@ checkperm() {
 checkperm "$last"
 
 fileinfo() {
+	tput setaf 6
 	for arg
 	do case "$arg" in (-*) continue;; esac
-		tput setaf 4 && $elevate file -E "$arg"
+		$elevate file -E "$arg" && ffprobe "$arg" 2>&1 | grep Duration | sed 's/, start:[^,]\+,/,/'
-		tput setaf 3 && $elevate stat --format '%A size %sB, birth %.10w mod %.10y' "$arg"
+		$elevate stat --format '%A size %sB, birth %.10w mod %.10y' "$arg"
 	done
 }
 
@@ -34,35 +35,43 @@ prefix=/tmp/b
 mkdir -p "$prefix"
 declare -a timg bat ls
 for arg; do
-	case "$arg" in (-*) args="$args $arg" continue;; esac
+	case "$arg" in (-*) args="$args $arg"; continue;; esac
 	checkperm "$arg"
 	grid=$(expr $(tput cols) / 20)
+	tmpfile="$prefix/$(basename "$arg")"
 	case "$mime" in
 	(*\ application/pdf\;*)
-		out="$prefix/$(basename "$arg")"
+		test -f "$tmpfile-1.png" || pdftoppm -r 70 "$arg" "$tmpfile" -l $(expr $grid '*' 2)
-		test -f "$out-1.png" || pdftoppm -r 70 "$arg" "$out" -l $(expr $grid '*' 2)
+		timg -W --grid=$grid "$tmpfile"*
-		timg -W --grid=$grid "$out"*
 		;;
 	(*\ video/*)
 		suffix=_thumbs.jpg
 		mtn -i -t -W -D6 -b 0,6 -c $grid -w $(expr $(tput cols) '*' 20) -O $prefix -o $suffix "$arg" 2>/dev/null
 		timg -W "$prefix/$(basename "${arg%.*}")$suffix"
 		;;
-	(*\ audio/*)
-		img="$prefix/$arg.png"
-		find "$img" -not -empty 2>/dev/null | grep --quiet . ||
-			audiowaveform --quiet --pixels-per-second 5 --height 40 --width 2000 \
-				--background-color 000000 --waveform-color 99BBFF --axis-label-color 000000 \
-				--input-filename "$arg" --output-format png >"$img" &&
-				timg -g $(tput cols)x2 --upscale "$img"
-		;;
 	(*\ image/*)
 		timg+=("$arg"); continue;;
 	(*\ inode/directory\;*)
 		ls+=("$arg"); continue;;
 	(*)
 		case "$(file "$arg")" in
-			(*:\ *compress*) /usr/share/nvim/runtime/macros/less.sh "$arg";;
+		(*\ ?udio*)
+			img="$tmpfile.png"
+			find "$img" -not -empty 2>/dev/null | grep --quiet . ||
+				audiowaveform --quiet --pixels-per-second 2 --height 36 --width 2000 --amplitude-scale auto \
+					--background-color 000000 --waveform-color 99BBFF --axis-label-color 000000 \
+					--input-filename "$arg" --output-format png >"$img"
+			timg -g $(tput cols)x2 "$arg" && printf "\\033[2A     "
+			timg -g $(tput cols)x2 --auto-crop --upscale "$img"
+			;;
+		(*:\ *compress*|*tar\ archive)
+			if test $# = 1
+			then nvim "$arg"
+			else case "$arg" in (*.part);; (*)
+				nvim -es "+2w$tmpfile|5,w>>$tmpfile" "$arg"
+				bat+=("$tmpfile");;
+			esac; fi
+			;;
 		(*) bat+=("$arg"); continue;;
 		esac
 		;;
@@ -71,18 +80,22 @@ for arg; do
 done
 
 if test "$timg"; then
+	tput sgr0
 	$elevate timg --center -t0.3 $(test $# -gt 1 &&
 		echo "--title --grid=$(expr $(tput cols) / 30)" ||
-		echo "-g 60x$(expr $(tput lines) / 2)") "$@" 2>/dev/null || true
+		echo "-g 60x$(expr $(tput lines) / 2)") "$@" 2>/dev/null
 	fileinfo "${timg[@]}"
 fi
 
 if test "$bat"; then
+	tput sgr0
+	test $# -gt ${#bat[@]} && test -z "$args" &&
+		$elevate head "${bat[@]}" ||
 		$elevate bat --style header --pager 'less -RF' $args "${bat[@]}"
 	fileinfo "${bat[@]}"
 fi
 
 if test "$ls"; then
 	tput sgr0
-	$(test -x "$arg" || echo "sudo") ls -l $(test $# -gt ${#ls[@]} && echo "-d") --color=always --human-readable --group-directories-first --file-type --dereference-command-line --all "${ls[@]}" | less -RF
+	$elevate ls -l $(test $# -gt ${#ls[@]} && echo "-d") --color=always --human-readable --group-directories-first --file-type --dereference-command-line --all "${ls[@]}" | less -RF
 fi