Release/1.2.0

.bazelrc

@@ -1,5 +1,4 @@
 build --registry=https://bcr.bazel.build/
-build --registry=https://raw.githubusercontent.com/rabbitmq/bazel-central-registry/erlang-packages/
 
 build --incompatible_strict_action_env
 

.bazelversion

@@ -1 +1 @@
-latest
+9.2.0

.bcr/metadata.template.json

@@ -1,15 +1,15 @@
 {
-  "homepage": "https://github.com/rabbitmq/rules_elixir",
+  "homepage": "https://github.com/bazelverse/rules_elixir",
   "maintainers": [
     {
-      "email": "rin.kuryloski@broadcom.com",
-      "github": "pjk25",
-      "name": "Rin Kuryloski"
+      "email": "marvin.hansen@gmail.com",
+      "github": "marvin-hansen",
+      "name": "Marvin Hansen"
     }
   ],
   "repository": [
-    "github:rabbitmq/rules_elixir"
+    "github:bazelverse/rules_elixir"
   ],
   "versions": [],
   "yanked_versions": {}
-}
+}

.bcr/presubmit.yml

@@ -1,3 +1,11 @@
+# Erlang comes from kerl, built from source, and is activated so that the Elixir
+# archive below finds an ERTS to run on. Elixir comes from the precompiled
+# release asset for the matching OTP major: upstream publishes one asset per
+# supported major, so ELIXIR_VERSION and OTP_MAJOR have to move together. See the
+# supported versions table in README.md.
+#
+# The external Elixir toolchain reads ELIXIR_HOME before falling back to
+# `which elixir`, which is what makes the unpacked archive visible to the build.
 shell_commands: &shell_commands
 - curl -O https://raw.githubusercontent.com/kerl/kerl/master/kerl
 - chmod a+x kerl
@@ -6,23 +14,26 @@ shell_commands: &shell_commands
 - ./kerl install ${ERLANG_VERSION} ~/kerl/${ERLANG_VERSION}
 - . ~/kerl/${ERLANG_VERSION}/activate
 - cd ~
-- curl -LO https://github.com/elixir-lang/elixir/releases/download/v1.17.2/elixir-otp-26.zip
-- mkdir elixir-otp-26
-- unzip elixir-otp-26.zip -d elixir-otp-26
-- ~/elixir-otp-26/bin/iex --version
+- curl -LO https://github.com/elixir-lang/elixir/releases/download/v${ELIXIR_VERSION}/elixir-otp-${OTP_MAJOR}.zip
+- mkdir -p elixir-otp-${OTP_MAJOR}
+- unzip -q elixir-otp-${OTP_MAJOR}.zip -d elixir-otp-${OTP_MAJOR}
+- ~/elixir-otp-${OTP_MAJOR}/bin/iex --version
 
 matrix:
   bazel:
-  - 7.x
+  - 8.x
+  - 9.x
 tasks:
   verify_targets_macos:
     name: Verify build targets (macos)
     platform: macos
     bazel: ${{ bazel }}
     environment:
-      ERLANG_VERSION: "26.2"
-      ERLANG_HOME: /Users/buildkite/kerl/26.2
-      ELIXIR_HOME: /Users/buildkite/elixir-otp-26
+      ERLANG_VERSION: "29.0.5"
+      ERLANG_HOME: /Users/buildkite/kerl/29.0.5
+      ELIXIR_VERSION: "1.20.3"
+      OTP_MAJOR: "29"
+      ELIXIR_HOME: /Users/buildkite/elixir-otp-29
     shell_commands: *shell_commands
     build_flags:
     - --incompatible_strict_action_env
@@ -33,9 +44,11 @@ tasks:
     platform: ubuntu2004
     bazel: ${{ bazel }}
     environment:
-      ERLANG_VERSION: "26.2"
-      ERLANG_HOME: /var/lib/buildkite-agent/kerl/26.2
-      ELIXIR_HOME: /var/lib/buildkite-agent/elixir-otp-26
+      ERLANG_VERSION: "29.0.5"
+      ERLANG_HOME: /var/lib/buildkite-agent/kerl/29.0.5
+      ELIXIR_VERSION: "1.20.3"
+      OTP_MAJOR: "29"
+      ELIXIR_HOME: /var/lib/buildkite-agent/elixir-otp-29
     shell_commands: *shell_commands
     build_flags:
     - --incompatible_strict_action_env

.bcr/source.template.json

@@ -1,5 +1,5 @@
 {
   "integrity": "",
   "strip_prefix": "{REPO}-{VERSION}",
-  "url": "https://github.com/{OWNER}/{REPO}/releases/download/{TAG}/rules_elixir-{TAG}.tar.gz"
+  "url": "https://github.com/{OWNER}/{REPO}/releases/download/{TAG}/rules_elixir-{VERSION}.tar.gz"
 }

.github/workflows/publish-to-bcr.yml

@@ -0,0 +1,37 @@
+# Opens a PR against the Bazel Central Registry when a release is published.
+#
+# Prerequisites, both one-time and both outside this repository:
+#   1. A fork of bazelbuild/bazel-central-registry under the bazelverse org.
+#   2. A classic PAT with `repo` and `workflow` scopes, stored as the
+#      BCR_PUBLISH_TOKEN Actions secret.
+#
+# Replaces a workflow that published to rabbitmq/bazel-central-registry@erlang-packages,
+# a private registry fork this project can no longer write to.
+#
+# Note that rules_elixir cannot actually land in the registry until rules_erlang
+# 3.18.0 does, because the BCR presubmit resolves the full module graph and
+# overrides do not apply to a non-root module.
+name: Publish to BCR
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      tag_name:
+        description: Release tag to publish
+        required: true
+        type: string
+
+jobs:
+  publish:
+    uses: bazel-contrib/publish-to-bcr/.github/workflows/publish.yaml@v1.4.2
+    with:
+      tag_name: ${{ inputs.tag_name || github.ref_name }}
+      registry_fork: bazelverse/bazel-central-registry
+      attest: true
+    permissions:
+      attestations: write
+      contents: write
+      id-token: write
+    secrets:
+      publish_token: ${{ secrets.BCR_PUBLISH_TOKEN }}

.github/workflows/test.yaml

@@ -1,3 +1,11 @@
+# CI covers the latest two Elixir minors against the latest two OTP majors.
+# Elixir supports a moving window of OTP majors (1.20 covers 27-29, 1.19 covers
+# 26-28), so the pairs are pinned explicitly rather than crossed: crossing them
+# would generate combinations Elixir does not support. Earlier versions may work
+# but are not tested here. See the supported versions table in README.md.
+#
+# The Bazel matrix lives in .bcr/presubmit.yml, which covers 8.x and 9.x. These
+# jobs use the version pinned in .bazelversion.
 name: Test
 on:
   push:
@@ -7,43 +15,62 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - otp: "28.5"
+            elixir: "1.19.5-otp-28"
+          - otp: "29.0"
+            elixir: "1.20.3-otp-29"
     steps:
       - name: CHECKOUT REPOSITORY
         uses: actions/checkout@v4
       - name: SETUP ERLANG/ELIXIR
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 26
-          elixir-version: 1.15
+          otp-version: ${{ matrix.otp }}
+          elixir-version: ${{ matrix.elixir }}
       - name: CONFIGURE
         run: |
-          echo "build --color=yes" >> .bazelrc
+          echo "build --color=yes" >> user.bazelrc
       - name: BUILD
         run: |
           bazelisk build //... \
             --verbose_failures
   test:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - otp: "28.5"
+            elixir: "1.19.5-otp-28"
+          - otp: "29.0"
+            elixir: "1.20.3-otp-29"
     steps:
       - name: CHECKOUT REPOSITORY
         uses: actions/checkout@v4
       - name: SETUP ERLANG/ELIXIR
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 26
-          elixir-version: 1.15
+          otp-version: ${{ matrix.otp }}
+          elixir-version: ${{ matrix.elixir }}
       - name: CONFIGURE
         working-directory: test
         run: |
-          echo "build --color=yes" >> .bazelrc
+          echo "build --color=yes" >> user.bazelrc
       - name: BUILD & TEST
         working-directory: test
         run: |
           bazelisk test //...
       - name: CHECK LOGS
         working-directory: test
+        # Elixir 1.20 replaced "N tests, M failures" with "Result: N passed", so
+        # both spellings are accepted while the matrix spans 1.19 and 1.20.
         run: |
-          grep "2 tests, 0 failures" bazel-testlogs/two_file_test/test.log
+          grep -E "Result: 2 passed|2 tests, 0 failures" \
+            bazel-testlogs/two_file_test/test.log
       - name: EXPECTED FAILURES FAIL
         working-directory: test
         run: |
@@ -54,23 +81,31 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
-          name: bazel-testlogs
+          name: bazel-testlogs-${{ matrix.otp }}
           path: |
             test/bazel-testlogs/*
   examples-basic:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - otp: "28.5"
+            elixir: "1.19.5-otp-28"
+          - otp: "29.0"
+            elixir: "1.20.3-otp-29"
     steps:
       - name: CHECKOUT REPOSITORY
         uses: actions/checkout@v4
       - name: SETUP ERLANG/ELIXIR
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 26
-          elixir-version: 1.15
+          otp-version: ${{ matrix.otp }}
+          elixir-version: ${{ matrix.elixir }}
       - name: CONFIGURE
         working-directory: examples/basic
         run: |
-          echo "build --color=yes" >> .bazelrc
+          echo "build --color=yes" >> user.bazelrc
       - name: BUILD & TEST
         working-directory: examples/basic
         run: |
@@ -79,10 +114,12 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
-          name: bazel-testlogs-examples-basic
+          name: bazel-testlogs-examples-basic-${{ matrix.otp }}
           path: |
             examples/basic/bazel-testlogs/*
   examples-internal-elixir:
+    # Builds both Erlang and Elixir from source, so it pins its own versions in
+    # MODULE.bazel and takes no setup-beam. Single configuration by design.
     runs-on: ubuntu-latest
     steps:
       - name: CHECKOUT REPOSITORY
@@ -104,21 +141,17 @@ jobs:
       - name: CONFIGURE
         working-directory: examples/internal-elixir
         run: |
-          cat << EOF >> .bazelrc
+          cat << EOF >> user.bazelrc
             build --disk_cache=/home/runner/disk-cache
             build --color=yes
           EOF
-      # - name: Setup tmate session
-      #   uses: mxschmitt/action-tmate@v3
       - name: BUILD & TEST
         working-directory: examples/internal-elixir
         env:
           ELIXIR_ERL_OPTIONS: +fnu
         run: |
           bazelisk test //... \
-            --config=ie-26_2 \
-            --toolchain_resolution_debug='@@rules_erlang~//tools:toolchain_type' \
-            --toolchain_resolution_debug='@@rules_elixir~//:toolchain_type' \
+            --config=ie-29 \
             --verbose_failures
       - name: UPLOAD TEST LOGS
         if: always()

.gitignore

@@ -1 +1,8 @@
 /bazel-*
+/user.bazelrc
+.agents
+.claude
+.code/
+.idea/
+.DS_Store
+MODULE.bazel.lock