diff options
Diffstat (limited to 'modules/scripts/file-preview')
| -rw-r--r-- | modules/scripts/file-preview/assertions.nix | 19 | ||||
| -rw-r--r-- | modules/scripts/file-preview/default.nix | 36 | ||||
| -rw-r--r-- | modules/scripts/file-preview/script.sh | 142 |
3 files changed, 197 insertions, 0 deletions
diff --git a/modules/scripts/file-preview/assertions.nix b/modules/scripts/file-preview/assertions.nix new file mode 100644 index 0000000..41fd4d6 --- /dev/null +++ b/modules/scripts/file-preview/assertions.nix @@ -0,0 +1,19 @@ +{ config, ... }: +[ + { + assertion = !config.scripts.file-preview.enable || config.terminal.kitty.enable; + message = "scripts.file-preview is enabled but requires `terminal.kitty.enable`."; + } + { + assertion = !config.scripts.file-preview.enable || config.media.ffmpeg.enable; + message = "scripts.file-preview is enabled but requires `media.ffmpeg.enable`."; + } + { + assertion = !config.scripts.file-preview.enable || config.file-management.ouch.enable; + message = "scripts.file-preview is enabled but requires `file-management.ouch.enable`."; + } + { + assertion = !config.scripts.file-preview.enable || config.terminal.bat.enable; + message = "scripts.file-preview is enabled but requires `terminal.bat.enable`."; + } +] diff --git a/modules/scripts/file-preview/default.nix b/modules/scripts/file-preview/default.nix new file mode 100644 index 0000000..eec5fb2 --- /dev/null +++ b/modules/scripts/file-preview/default.nix @@ -0,0 +1,36 @@ +{ + config, + lib, + pkgs, + ... +}: +let + inherit ((import ../lib.nix { inherit lib pkgs; })) mkScriptModule; + base = mkScriptModule { + name = "file-preview"; + path = ./script.sh; + description = "Timeout protection (prevents hanging)"; + deps = [ + config.terminal.kitty.package + config.terminal.bat.package + config.media.ffmpeg.package + config.file-management.ouch.package + pkgs.coreutils + pkgs.file + pkgs.findutils + pkgs.fontconfig + pkgs.librsvg + pkgs.antiword + pkgs.pandoc + pkgs.poppler-utils + pkgs.util-linux + ]; + inherit config; + }; +in +{ + options = base.options; + config = base.moduleConfig // { + assertions = base.moduleConfig.assertions ++ (import ./assertions.nix { inherit config lib; }); + }; +} diff --git a/modules/scripts/file-preview/script.sh b/modules/scripts/file-preview/script.sh new file mode 100644 index 0000000..748b1ea --- /dev/null +++ b/modules/scripts/file-preview/script.sh @@ -0,0 +1,142 @@ +TIMEOUT=5 +if [ -z "$LF_PREVIEW_RUNNING" ]; then + export LF_PREVIEW_RUNNING=1 + exec timeout "$TIMEOUT" "$0" "$@" +fi + +# Parameters from lf +FILE_PATH="$1" +WIDTH="$2" +HEIGHT="$3" +X="$4" +Y="$5" + +# Temp dir +TMP_DIR="/tmp/file-preview-$(id -u)" +mkdir -p "$TMP_DIR" + +# Unique temp file per actual file using inode +INODE=$(stat -c '%i' "$FILE_PATH" 2>/dev/null || echo "0") + +# Render image via kitty +render_image() { + local file="$1" + local tries=0 + while [ ! -s "$file" ]; do + sleep 0.2 + tries=$((tries + 1)) + done + [ ! -s "$file" ] && exit 0 + kitten icat --stdin no --transfer-mode file --place "${WIDTH}x${HEIGHT}@${X}x${Y}" "$file" </dev/null >/dev/tty + exit 1 +} + +# Ensure file exists +[ ! -r "$FILE_PATH" ] && exit 0 + +MIMETYPE=$(file --dereference --brief --mime-type "$FILE_PATH") +case "$MIMETYPE" in + # --- IMAGES --- + image/svg+xml) + TMP_IMG="$TMP_DIR/svg-${INODE}.png" + if [ ! -f "$TMP_IMG" ]; then + rsvg-convert "$FILE_PATH" -o "$TMP_IMG" >/dev/null 2>&1 + [ -s "$TMP_IMG" ] && mv "$TMP_IMG" "$TMP_IMG" + fi + render_image "$TMP_IMG" + ;; + + image/*) + render_image "$FILE_PATH" + ;; + + # --- VIDEOS --- + video/*) + TMP_IMG="$TMP_DIR/vid-${INODE}.png" + if [ ! -f "$TMP_IMG" ]; then + if command -v ffmpegthumbnailer >/dev/null; then + ffmpegthumbnailer -i "$FILE_PATH" -o "$TMP_IMG" -s 0 -q 5 >/dev/null 2>&1 + else + ffmpeg -y -i "$FILE_PATH" -ss 00:00:01 -vframes 1 "$TMP_IMG" >/dev/null 2>&1 + fi + fi + render_image "$TMP_IMG" + ;; + + # --- AUDIO --- + audio/*) + TMP_IMG="$TMP_DIR/aud-${INODE}.png" + if [ ! -f "$TMP_IMG" ]; then + ffmpeg -y -i "$FILE_PATH" \ + -filter_complex "showwavespic=s=${WIDTH}x${HEIGHT}:colors=white" \ + -frames:v 1 "$TMP_IMG" >/dev/null 2>&1 + fi + ffprobe -hide_banner -v quiet -show_format -show_streams "$FILE_PATH" + render_image "$TMP_IMG" + exit 0 + ;; + + # --- PDF --- + application/pdf) + TMP_IMG="$TMP_DIR/pdf-${INODE}.png" + if [ ! -f "$TMP_IMG" ]; then + pdftoppm -f 1 -l 1 -png -singlefile \ + -scale-to $((WIDTH * 8)) \ + -r 72 \ + "$FILE_PATH" "${TMP_IMG%.png}" >/dev/null 2>&1 + fi + render_image "$TMP_IMG" + ;; + + # --- EPUB / MOBI --- + application/epub+zip|application/x-mobipocket-ebook) + TMP_IMG="$TMP_DIR/epub-${INODE}.png" + if [ ! -f "$TMP_IMG" ]; then + EPUB_DIR="$TMP_DIR/epub-${INODE}" + ouch decompress --yes --dir "$EPUB_DIR" "$FILE_PATH" >/dev/null 2>&1 + COVER=$(find "$EPUB_DIR" -type f \( -iname 'cover*.jpg' -o -iname 'cover*.jpeg' -o -iname 'cover*.png' \) -print -quit) + [ -n "$COVER" ] && cp "$COVER" "$TMP_IMG" + fi + [ -s "$TMP_IMG" ] && render_image "$TMP_IMG" + ;; + + # --- OFFICE DOCUMENTS --- + # Extract text in the terminal instead of pulling in a graphical office suite. + application/vnd.openxmlformats-officedocument.wordprocessingml.document|application/vnd.oasis.opendocument.text) + pandoc --to plain "$FILE_PATH" 2>/dev/null + exit 0 + ;; + + application/msword) + antiword "$FILE_PATH" 2>/dev/null + exit 0 + ;; + + # --- ARCHIVES --- + application/zip|application/x-7z-compressed|application/x-rar|application/x-tar|application/x-gzip) + ouch list -t "$FILE_PATH" 2>/dev/null + exit 0 + ;; + + # --- TEXT / CODE --- + text/*|application/json|application/javascript|application/xml) + bat --color=always --style=numbers --line-range :200 "$FILE_PATH" 2>/dev/null + exit 0 + ;; + + # --- FONTS --- + font/*|application/vnd.ms-fontobject|application/x-font-ttf) + fc-scan "$FILE_PATH" + exit 0 + ;; + + # --- FALLBACK --- + *) + file --dereference --brief "$FILE_PATH" + echo "------------------------------------------------" + hexdump -C "$FILE_PATH" | head -n 100 + exit 0 + ;; +esac + +exit 0 |