introduce CLI, fix slot issues from experiments w/ jlcpcb

.gitignore

@@ -184,3 +184,5 @@ gerber-output
 gerber-output.zip
 .aider*
 *.diff.png
+
+tmp*

package.json

@@ -4,20 +4,26 @@
   "main": "dist/index.js",
   "type": "module",
   "scripts": {
-    "build": "tsup-node src/index.ts --format esm --dts --sourcemap",
+    "build": "tsup-node src/index.ts src/cli.ts --format esm --dts --sourcemap",
     "format": "biome format --write .",
     "format:check": "biome format ."
   },
   "files": [
     "dist"
   ],
+  "bin": {
+    "circuit-to-gerber": "./dist/cli.js"
+  },
   "devDependencies": {
     "@biomejs/biome": "^1.8.3",
     "@tscircuit/core": "^0.0.131",
+    "@types/archiver": "^6.0.3",
     "@types/bun": "^1.1.8",
     "@types/node": "^22.5.2",
     "@types/react": "^18.3.12",
+    "archiver": "^7.0.1",
     "bun-match-svg": "^0.0.3",
+    "commander": "^12.1.0",
     "gerber-to-svg": "^4.2.8",
     "pcb-stackup": "^4.2.8",
     "react": "^18.3.1",

src/cli.ts

@@ -0,0 +1,71 @@
+#!/usr/bin/env node
+
+import { program } from "commander"
+import { readFile, writeFile } from "node:fs/promises"
+import { createWriteStream } from "node:fs"
+import { resolve, dirname, basename } from "node:path"
+import { fileURLToPath } from "node:url"
+import archiver from "archiver"
+import { convertSoupToGerberCommands, stringifyGerberCommandLayers } from "./"
+import { convertSoupToExcellonDrillCommands, stringifyExcellonDrill } from "./"
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+
+program
+  .name("circuit-to-gerber")
+  .description("Convert circuit JSON files to Gerber/Excellon files")
+  .argument("<input>", "Input circuit JSON file (*.circuit.json)")
+  .option(
+    "-o, --output <file>",
+    "Output ZIP file (defaults to input.gerbers.zip)",
+  )
+  .action(async (input, options) => {
+    try {
+      // Read and parse input JSON
+      const circuitJson = JSON.parse(await readFile(input, "utf8"))
+
+      // Convert to gerber commands
+      const gerberCmds = convertSoupToGerberCommands(circuitJson)
+      const excellonDrillCmds = convertSoupToExcellonDrillCommands({
+        circuitJson,
+        is_plated: true,
+      })
+      const excellonDrillUnplatedCmds = convertSoupToExcellonDrillCommands({
+        circuitJson,
+        is_plated: false,
+      })
+
+      // Stringify all outputs
+      const gerberOutput = stringifyGerberCommandLayers(gerberCmds)
+      const excellonDrillOutput = stringifyExcellonDrill(excellonDrillCmds)
+      const excellonDrillUnplatedOutput = stringifyExcellonDrill(
+        excellonDrillUnplatedCmds,
+      )
+
+      // Create output ZIP file
+      const outputPath =
+        options.output || input.replace(".circuit.json", ".gerbers.zip")
+      const output = createWriteStream(outputPath)
+      const archive = archiver("zip", { zlib: { level: 9 } })
+
+      archive.pipe(output)
+
+      // Add all gerber files to ZIP
+      for (const [filename, content] of Object.entries(gerberOutput)) {
+        archive.append(content, { name: `${filename}.gbr` })
+      }
+
+      // Add drill files
+      archive.append(excellonDrillOutput, { name: "plated.drl" })
+      archive.append(excellonDrillUnplatedOutput, { name: "unplated.drl" })
+
+      await archive.finalize()
+
+      console.log(`Created ${outputPath}`)
+    } catch (err) {
+      console.error("Error:", (err as Error).message)
+      process.exit(1)
+    }
+  })
+
+program.parse()

src/gerber/convert-soup-to-gerber-commands/getCommandHeaders.ts

@@ -1,6 +1,6 @@
 import type { AnyGerberCommand } from "src/gerber/any_gerber_command"
 import { gerberBuilder } from "../gerber-builder"
-import packageJson from "package.json"
+import packageJson from "../../../package.json"
 
 const layerAndTypeToFileFunction = {
   "top-copper": "Copper,L1,Top",