CI: Add a step on main pipelines to temporarily update the package.json v… (#75018)

* Add a step on main pipelines to temporarily update the package.json version to include the build number

.drone.yml

@@ -526,6 +526,17 @@ steps:
   depends_on: []
   image: node:18.12.0-alpine
   name: yarn-install
+- commands:
+  - apk add --update jq bash
+  - yarn packages:build
+  - yarn packages:pack
+  - ./scripts/validate-npm-packages.sh
+  depends_on:
+  - yarn-install
+  environment:
+    NODE_OPTIONS: --max_old_space_size=8192
+  image: node:18.12.0-alpine
+  name: build-frontend-packages
 - commands:
   - git clone "https://$${GITHUB_TOKEN}@github.com/grafana/grafana-enterprise.git"
     --depth=1
@@ -570,17 +581,6 @@ steps:
     server: https://drone.grafana.net
     token:
       from_secret: drone_token
-- commands:
-  - apk add --update jq bash
-  - yarn packages:build
-  - yarn packages:pack
-  - ./scripts/validate-npm-packages.sh
-  depends_on:
-  - yarn-install
-  environment:
-    NODE_OPTIONS: --max_old_space_size=8192
-  image: node:18.12.0-alpine
-  name: build-frontend-packages
 - commands:
   - /src/grafana-build package --distro=linux/amd64,linux/arm64,linux/arm/v7 --go-version=1.20.8
     --yarn-cache=$$YARN_CACHE_FOLDER --build-id=$$DRONE_BUILD_NUMBER --grafana-dir=$$PWD
@@ -1710,6 +1710,17 @@ steps:
   depends_on: []
   image: node:18.12.0-alpine
   name: yarn-install
+- commands:
+  - apk add --update jq
+  - new_version=$(cat package.json | jq .version | sed s/pre/$DRONE_BUILD_NUMBERpre/g)
+  - 'echo "New version: $new_version"'
+  - yarn run lerna version $new_version --exact --no-git-tag-version --no-push --force-publish
+    -y
+  - yarn install --mode=update-lockfile
+  depends_on:
+  - yarn-install
+  image: node:18.12.0-alpine
+  name: update-package-json-version
 - commands:
   - apk add --update jq bash
   - yarn packages:build
@@ -1717,6 +1728,7 @@ steps:
   - ./scripts/validate-npm-packages.sh
   depends_on:
   - yarn-install
+  - update-package-json-version
   environment:
     NODE_OPTIONS: --max_old_space_size=8192
   image: node:18.12.0-alpine
@@ -4190,6 +4202,6 @@ kind: secret
 name: gcr_credentials
 ---
 kind: signature
-hmac: 44164d7ef0702adcdbc3e53cb3fb70641b04af709a0d22ec65d7a6f87d4af4d2
+hmac: 7c1a3c428fbf63231d5ebc9edafbcc8aed44a516b636aabd4454f2e4483c0672
 
 ...

scripts/drone/pipelines/build.star

@@ -19,6 +19,7 @@ load(
     "test_a11y_frontend_step",
     "trigger_oss",
     "trigger_test_release",
+    "update_package_json_version",
     "upload_cdn_step",
     "upload_packages_step",
     "verify_gen_cue_step",
@@ -46,7 +47,7 @@ def build_e2e(trigger, ver_mode):
 
     Args:
       trigger: controls which events can trigger the pipeline execution.
-      ver_mode: used in the naming of the pipeline.
+      ver_mode: used in the naming of the pipeline. Either 'pr' or 'main'.
 
     Returns:
       Drone pipeline.
@@ -68,14 +69,19 @@ def build_e2e(trigger, ver_mode):
     if ver_mode == "pr":
         build_steps.extend(
             [
+                build_frontend_package_step(),
                 trigger_test_release(),
                 enterprise_downstream_step(ver_mode = ver_mode),
             ],
         )
+    else:
+        build_steps.extend([
+            update_package_json_version(),
+            build_frontend_package_step(depends_on = ["update-package-json-version"]),
+        ])
 
     build_steps.extend(
         [
-            build_frontend_package_step(),
             rgm_package_step(distros = "linux/amd64,linux/arm64,linux/arm/v7", file = "packages.txt"),
             grafana_server_step(),
             e2e_tests_step("dashboards-suite"),

scripts/drone/steps/lib.star

@@ -409,9 +409,34 @@ def build_frontend_step():
         ],
     }
 
-def build_frontend_package_step():
+def update_package_json_version():
+    """Updates the packages/ to use a version that has the build ID in it: 10.0.0pre -> 10.0.0-5432pre
+
+    Returns:
+      Drone step that updates the 'version' key in package.json
+    """
+
+    return {
+        "name": "update-package-json-version",
+        "image": images["node"],
+        "depends_on": [
+            "yarn-install",
+        ],
+        "commands": [
+            "apk add --update jq",
+            "new_version=$(cat package.json | jq .version | sed s/pre/$DRONE_BUILD_NUMBERpre/g)",
+            "echo \"New version: $new_version\"",
+            "yarn run lerna version $new_version --exact --no-git-tag-version --no-push --force-publish -y",
+            "yarn install --mode=update-lockfile",
+        ],
+    }
+
+def build_frontend_package_step(depends_on = []):
     """Build the frontend packages using the Grafana build tool.
 
+    Args:
+        depends_on: a list of step names (strings) that must complete before this step runs.
+
     Returns:
       Drone step.
     """
@@ -432,7 +457,7 @@ def build_frontend_package_step():
         },
         "depends_on": [
             "yarn-install",
-        ],
+        ] + depends_on,
         "commands": cmds,
     }
 
@@ -959,6 +984,7 @@ def release_canary_npm_packages_step(trigger = None):
             "./scripts/publish-npm-packages.sh --dist-tag 'canary' --registry 'https://registry.npmjs.org'",
         ],
     }
+
     if trigger:
         step = dict(
             step,
@@ -971,6 +997,7 @@ def release_canary_npm_packages_step(trigger = None):
                 },
             ),
         )
+
     return step
 
 def upload_packages_step(ver_mode, trigger = None):