github: generate package_index json

Author: pillo79

Diff for: .github/workflows/package_core.yml

@@ -185,3 +185,36 @@ jobs:
 
       - name: Upload artifact
         run: aws s3 cp ${{ env.ARTIFACT_FILE }} s3://${{ secrets.S3_BUCKET }}/
+
+  publish-json:
+    name: Publish json
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name == 'push' && github.repository == 'arduino/ArduinoCore-zephyr' }}
+    needs:
+      - package-core
+      - publish-core
+    env:
+      CORE_ARTIFACT: ${{ needs.package-core.outputs.CORE_ARTIFACT }}
+      ARTIFACT_FILE: ${{ needs.package-core.outputs.CORE_ARTIFACT }}.tar.bz2
+      CORE_TAG: ${{ needs.package-core.outputs.CORE_TAG }}
+      PACKAGE_INDEX_JSON: zephyr-core-${{ needs.package-core.outputs.CORE_TAG }}.json
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: ${{ env.CORE_ARTIFACT }}
+
+      - uses: actions/checkout@v4
+        with:
+          sparse-checkout: |
+            extra/gen_package_index_json.sh
+            extra/zephyr-core-template.json
+
+        # uses: ARTIFACT_FILE CORE_TAG PACKAGE_INDEX_JSON
+      - name: Prepare package index snippet
+        run: ./extra/gen_package_index_json.sh
+
+      - name: Archive package index snippet
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.PACKAGE_INDEX_JSON }}
+          path: ${{ env.PACKAGE_INDEX_JSON }}

Diff for: extra/gen_package_index_json.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if [ -z "$CORE_TAG" ]; then
+  echo "This script can be used in Github CI only."
+  exit 1
+fi
+
+cat extra/zephyr-core-template.json | sed \
+	-e "s/__CORE_TAG__/$CORE_TAG/" \
+	-e "s/__ARTIFACT_FILE__/$ARTIFACT_FILE/" \
+	-e "s/__ARTIFACT_HASH__/$(sha256sum $ARTIFACT_FILE | awk '{print $1}')/" \
+	-e "s/__ARTIFACT_SIZE__/$(stat -c %s $ARTIFACT_FILE)/" \
+	> $PACKAGE_INDEX_JSON

Diff for: extra/zephyr-core-template.json

@@ -0,0 +1,66 @@
+{
+  "packages": [
+    {
+      "platforms": [
+        {
+          "name": "Arduino Zephyr Boards",
+          "architecture": "zephyr",
+          "version": "__CORE_TAG__",
+          "category": "Arduino",
+          "url": "https://downloads.arduino.cc/cores/zephyr/__ARTIFACT_FILE__",
+          "archiveFileName": "__ARTIFACT_FILE__",
+          "checksum": "SHA-256:__ARTIFACT_HASH__",
+          "size": "__ARTIFACT_SIZE__",
+          "help": {
+            "online": "https://www.arduino.cc/en/Reference/HomePage"
+          },
+          "boards": [
+            {
+              "name": "Arduino Giga"
+            },
+            {
+              "name": "Arduino Nano 33 BLE"
+            },
+            {
+              "name": "Arduino Portenta H7"
+            },
+            {
+              "name": "Arduino Portenta C33"
+            },
+            {
+              "name": "Renesas EK_RA8D1"
+            },
+            {
+              "name": "NXP FRDM MCXN947"
+            },
+            {
+              "name": "NXP FRDM RW612"
+            }
+          ],
+          "toolsDependencies": [
+            {
+              "packager": "zephyr",
+              "name": "arm-zephyr-eabi",
+              "version": "0.16.8"
+            },
+            {
+              "packager": "arduino",
+              "name": "dfu-util",
+              "version": "0.11.0-arduino5"
+            },
+            {
+              "packager": "arduino",
+              "name": "bossac",
+              "version": "1.9.1-arduino2"
+            },
+            {
+              "packager": "arduino",
+              "name": "zephyr-post-build-tool",
+              "version": "0.1.0"
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}