opener.ksh: script nuevo

varios/ksh/opener.ksh

@@ -0,0 +1,188 @@
+#!/bin/ksh
+#
+# v0.3 - 15/08/2023
+# Opener personalizado inspirado en el plugin preview-tabbed de nnn.
+#
+# Dependencias:
+#	pdf: zathura (GUI), pdftotext
+#	bsdtar: listar archivos comprimidos
+#	audio: mocp (plugin nnn usando moc), mpv, exiftool
+#	avi|mkv|mp4: ffplay (GUI), exiftool
+#	log: $EDITOR
+#	odt|ods|odp|sxw: odt2txt
+#	Markdown: glow
+#	htm|html|xhtml: w3m
+#	Imágenes: nsxiv, viu
+#	text/troff: man
+#	text/* | */xml: $EDITOR
+# Autor: O. Sánchez <o-sanchez@linuxmail.org>
+
+set -ef -o noclobber
+
+if [[ ${#} == 0 ]]; then
+	print "Uso: ${0##*/} <filepath>"
+	exit 1
+fi
+
+IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}" 
+EDITOR="${VISUAL:-${EDITOR:-vi}}"
+FPATH="$1"
+FNAME="${1##*/}"
+ext="${FNAME##*.}"
+if [[ -n $ext ]]; then
+	typeset -l ext
+	ext="$(print "$ext")"
+fi
+
+function open_with_viewer {
+	typeset viewer="$1"
+	shift
+	if type "$viewer" >/dev/null 2>&1; then
+		"$viewer" "${FPATH}" >/dev/null 2>&1 &
+	fi
+}
+
+function open_with_converter {
+	typeset converter="$1"
+	shift
+	if type "$converter" >/dev/null 2>&1; then
+		"$converter" "$@" "${FPATH}" | eval "$PAGER"
+	fi
+}
+
+function open_with_browser {
+	typeset browser="$1"
+	shift
+	if type "$browser" >/dev/null 2>&1; then
+		"$browser" "$@" "${FPATH}" >/dev/null 2>&1 &
+	fi
+}
+
+function open_with_editor {
+	"$EDITOR" "${FPATH}"
+}
+
+
+# Funciones para gestionar los archivos
+
+function handle_pdf {
+	if [[ -n $DISPLAY ]]; then
+		open_with_viewer zathura
+	else
+		pdftotext -l 10 -nopgbrk -q -- "${FPATH}" - | eval "$PAGER"
+	fi
+	return 0
+}
+
+function handle_audio {
+	if type mocp >/dev/null 2>&1 && type mocq >/dev/null 2>&1; then
+		open_with_viewer mocq opener
+	elif type mpv >/dev/null 2>&1; then
+		open_with_viewer mpv
+	elif type exiftool >/dev/null 2>&1; then
+		open_with_converter exiftool
+	fi
+	return 0
+}
+
+function handle_video {
+	if [[ -n $DISPLAY ]]; then
+		open_with_viewer ffplay -autoexit -fs
+	else
+		open_with_converter exiftool
+	fi
+	return 0
+}
+
+function handle_image {
+	if [[ -n $DISPLAY ]]; then
+		open_with_viewer nsxiv -a
+	elif type viu >/dev/null 2>&1; then
+		open_with_converter viu -n
+	fi
+	return 0
+}
+
+function handle_html {
+	if [[ -n $DISPLAY ]]; then
+		open_with_converter w3m -dump
+	fi
+	return 0
+}
+
+case "${ext}"  in
+	## Archive
+	a|ace|alz|arc|arj|bz|bz2|cab|cpio|deb|gz|jar|lha|lz|lzh|lzma|lzo|\
+	rpm|rz|t7z|tar|tbz|tbz2|tgz|tlz|txz|tZ|tzo|war|xpi|xz|Z|zstd|zip)
+		if type bsdtar >/dev/null 2>&1; then
+			bsdtar --list --file "${FPATH}" | eval "$PAGER"
+			exit 0
+		fi
+		exit 1;;
+
+	## PDF
+	pdf)
+		handle_pdf
+		exit 1;;
+
+	## Audio
+	aac|flac|m4a|mid|midi|mpa|mp2|mp3|ogg|wav|webm|wma)
+		handle_audio
+		exit 1;;
+
+	## Video
+	avi|mkv|mp4)
+		handle_video
+		exit 1;;
+
+	## Image
+	bmp|gif|jpeg|jpg|png|tiff|webp|heic|\
+	postscript|jp2|jxl|avif|heif|eps)
+		handle_image
+		exit 1;;
+
+	## Log files
+	log)
+		open_with_editor
+		exit 0;;
+
+	## OpenDocument
+	odt|ods|odp|sxw)
+		if type odt2txt >/dev/null 2>&1; then
+			open_with_converter odt2txt
+			exit 0
+		fi
+		exit 1;;
+
+	## Markdown
+	md)
+		if type glow >/dev/null 2>&1; then
+			open_with_converter glow -sdark
+			exit 0
+		fi
+		exit 1;;
+
+	## HTML
+	htm|html|xhtml)
+		handle_html
+		exit 1;;
+esac
+
+function handle_mime {
+	typeset mimetype="${1}"
+	case "${mimetype}" in
+		## Manpages
+		text/troff)
+			man -a "${FPATH}"
+			exit 0;;
+
+		## Text
+		text/* | */xml)
+			open_with_editor
+			exit 0;;
+		esac
+}
+
+MIMETYPE="$( file -bL --mime-type -- "${FPATH}" )"
+handle_mime "${MIMETYPE}"
+exit 1