init

flake.nix

@@ -0,0 +1,46 @@
+{
+  description = "Tooling for turning datasheet PDFs into text";
+
+  inputs.nixpkgs.url =
+    "github:NixOS/nixpkgs/a50de1b7d8a586adc18d2395c19de7d6058e6030";
+
+  outputs = { self, nixpkgs }:
+    let
+      systems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forAllSystems = f:
+        nixpkgs.lib.genAttrs systems (system: f nixpkgs.legacyPackages.${system});
+    in
+    {
+      devShells = forAllSystems (pkgs: {
+        default = pkgs.mkShell {
+          name = "datasheet-to-text";
+
+          packages = with pkgs; [
+            # Split / merge / inspect PDFs losslessly.
+            #   qpdf --split-pages=1 in.pdf out-%d.pdf
+            #   qpdf in.pdf --pages . 12-34 -- out.pdf
+            qpdf
+
+            # pdfseparate, pdfunite, pdftotext, pdfinfo, pdfimages, pdftoppm
+            poppler-utils
+
+            # mutool: draw/extract/convert, good structured text output
+            #   mutool draw -F text -o out.txt in.pdf 12-34
+            mupdf
+
+            # Crop/trim rendered pages down to individual figures.
+            #   magick in.png -crop WxH+X+Y +repage out.png
+            imagemagick
+
+            # Runs tools/extract-figures.py (stdlib only).
+            python3
+          ];
+
+          shellHook = ''
+            echo "datasheet-to-text shell"
+            echo "  qpdf $(qpdf --version | head -1 | grep -o '[0-9.]*$')  pdftotext  mutool  magick  python3"
+          '';
+        };
+      });
+    };
+}