open-as-pdf: add caching and multiple file support

1 files changed, 35 insertions, 9 deletions

diff --git a/open-as-pdf b/open-as-pdf
index 8d09ad2..99e5e22 100755
--- a/open-as-pdf
+++ b/open-as-pdf
@@ -2,16 +2,42 @@
 
 set -euo pipefail
 
-main() {
-  if [ $# -eq 0 ]; then
-    echo First arguments must be a file.
-    exit 1
-  fi
+# @describe Convert document files to PDF and open them.
+# @arg files+ Input document files (e.g., .docx, .xlsx, .pptx) to convert and view as PDF
+# @flag -n --no-cache Prevent caching of converted PDFs
+# @meta require-tools sha512sum,soffice,xdg-open
+# @env OPEN_AS_PDF_CACHE_DIR Cache directory (default: $XDG_CACHE_HOME/open-as-pdf)
+
+_open_as_pdf() {
+  if [ -n "${argc_no_cache:-}" ]; then
+    OUTPUT_DIR=$(mktemp --directory)
+    trap 'rm -rf "$OUTPUT_DIR"' EXIT
+
+    soffice --convert-to pdf --outdir "$OUTPUT_DIR" "$1"
+    xdg-open "$OUTPUT_DIR"/*.pdf && sleep 5
+  else
+    local file_hash file_cach_dir
+    file_hash=$(sha512sum "$1" | cut -d' ' -f 1)
+    file_cach_dir="${OPEN_AS_PDF_CACHE_DIR:-${XDG_CACHE_HOME:-$HOME/.cache}/open-as-pdf}/$file_hash"
+
+    if [ ! -d "$file_cach_dir" ]; then
+      OUTPUT_DIR=$(mktemp --directory)
+      trap 'rm -rf "$OUTPUT_DIR"' EXIT
 
-  OUTPUT_DIR=$(mktemp --directory)
-  trap 'rm -rf "$OUTPUT_DIR"' EXIT
+      soffice --convert-to pdf --outdir "$OUTPUT_DIR" "$1"
 
-  soffice --convert-to pdf --outdir "$OUTPUT_DIR" "$1" && xdg-open "$OUTPUT_DIR"/*.pdf && sleep 5
+      mkdir -p "$file_cach_dir"
+      mv "$OUTPUT_DIR"/*.pdf "$file_cach_dir"
+    fi
+
+    xdg-open "$file_cach_dir"/*.pdf
+  fi
+}
+
+main() {
+  for file in "${argc_files[@]?}"; do
+    _open_as_pdf "$file"
+  done
 }
 
-main "$@"
+eval "$(argc --argc-eval "$0" "$@")"