RailsEventStore · pjurewicz · Jul 17, 2026
diff --git a/.github/workflows/ruby_event_store-browser-swimlane_coverage.yml b/.github/workflows/ruby_event_store-browser-swimlane_coverage.yml
@@ -0,0 +1,54 @@
+name: ruby_event_store-browser-swimlane_coverage
+on:
+  workflow_dispatch:
+  repository_dispatch:
+    types:
+    - script
+  push:
+    branches:
+    - master
+    paths:
+    - contrib/ruby_event_store-browser-swimlane/Gemfile.lock
+    - ".github/workflows/ruby_event_store-browser-swimlane_coverage.yml"
+    - support/**
+    - "!support/bundler/**"
+    - "!support/ci/**"
+  pull_request:
+    paths:
+    - contrib/ruby_event_store-browser-swimlane/Gemfile.lock
+    - ".github/workflows/ruby_event_store-browser-swimlane_coverage.yml"
+    - support/**
+    - "!support/bundler/**"
+    - "!support/ci/**"
+  schedule:
+  - cron: 0 17 * * *
+jobs:
+  coverage:
+    runs-on: macos-14
+    timeout-minutes: 120
+    env:
+      WORKING_DIRECTORY: contrib/ruby_event_store-browser-swimlane
+      RUBY_VERSION: "${{ matrix.ruby_version }}"
+      BUNDLE_GEMFILE: "${{ matrix.bundle_gemfile }}"
+      BUNDLE_WITHOUT: database
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - ruby_version: ruby-4.0
+          bundle_gemfile: Gemfile
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 1
+    - run: test -e ${{ env.BUNDLE_GEMFILE }}.lock
+      working-directory: "${{ env.WORKING_DIRECTORY }}"
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: "${{ env.RUBY_VERSION }}"
+        bundler-cache: true
+        working-directory: "${{ env.WORKING_DIRECTORY }}"
+    - run: make mutate
+      working-directory: "${{ env.WORKING_DIRECTORY }}"
+      env:
+        RUBYOPT: "--enable-frozen-string-literal"
diff --git a/.github/workflows/ruby_event_store-browser-swimlane_mutate.yml b/.github/workflows/ruby_event_store-browser-swimlane_mutate.yml
@@ -0,0 +1,53 @@
+name: ruby_event_store-browser-swimlane_mutate
+on:
+  workflow_dispatch:
+  repository_dispatch:
+    types:
+    - script
+  push:
+    branches:
+    - master
+    paths:
+    - contrib/ruby_event_store-browser-swimlane/**
+    - ".github/workflows/ruby_event_store-browser-swimlane_mutate.yml"
+    - support/**
+    - "!support/bundler/**"
+    - "!support/ci/**"
+  pull_request:
+    paths:
+    - contrib/ruby_event_store-browser-swimlane/**
+    - ".github/workflows/ruby_event_store-browser-swimlane_mutate.yml"
+    - support/**
+    - "!support/bundler/**"
+    - "!support/ci/**"
+jobs:
+  mutate:
+    runs-on: macos-14
+    timeout-minutes: 120
+    env:
+      WORKING_DIRECTORY: contrib/ruby_event_store-browser-swimlane
+      RUBY_VERSION: "${{ matrix.ruby_version }}"
+      BUNDLE_GEMFILE: "${{ matrix.bundle_gemfile }}"
+      BUNDLE_WITHOUT: database
+      SINCE_SHA: "${{ github.event.pull_request.base.sha || 'HEAD~1' }}"
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - ruby_version: ruby-4.0
+          bundle_gemfile: Gemfile
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - run: test -e ${{ env.BUNDLE_GEMFILE }}.lock
+      working-directory: "${{ env.WORKING_DIRECTORY }}"
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: "${{ env.RUBY_VERSION }}"
+        bundler-cache: true
+        working-directory: "${{ env.WORKING_DIRECTORY }}"
+    - run: make mutate-changes
+      working-directory: "${{ env.WORKING_DIRECTORY }}"
+      env:
+        RUBYOPT: "--enable-frozen-string-literal"
diff --git a/.github/workflows/ruby_event_store-browser-swimlane_test.yml b/.github/workflows/ruby_event_store-browser-swimlane_test.yml
@@ -0,0 +1,55 @@
+name: ruby_event_store-browser-swimlane_test
+on:
+  workflow_dispatch:
+  repository_dispatch:
+    types:
+    - script
+  push:
+    branches:
+    - master
+    paths:
+    - contrib/ruby_event_store-browser-swimlane/**
+    - ".github/workflows/ruby_event_store-browser-swimlane_test.yml"
+    - support/**
+    - "!support/bundler/**"
+    - "!support/ci/**"
+  pull_request:
+    paths:
+    - contrib/ruby_event_store-browser-swimlane/**
+    - ".github/workflows/ruby_event_store-browser-swimlane_test.yml"
+    - support/**
+    - "!support/bundler/**"
+    - "!support/ci/**"
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 120
+    env:
+      WORKING_DIRECTORY: contrib/ruby_event_store-browser-swimlane
+      RUBY_VERSION: "${{ matrix.ruby_version }}"
+      BUNDLE_GEMFILE: "${{ matrix.bundle_gemfile }}"
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - ruby_version: ruby-4.0
+          bundle_gemfile: Gemfile
+        - ruby_version: ruby-3.4
+          bundle_gemfile: Gemfile
+        - ruby_version: ruby-3.3
+          bundle_gemfile: Gemfile
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 1
+    - run: test -e ${{ env.BUNDLE_GEMFILE }}.lock
+      working-directory: "${{ env.WORKING_DIRECTORY }}"
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: "${{ env.RUBY_VERSION }}"
+        bundler-cache: true
+        working-directory: "${{ env.WORKING_DIRECTORY }}"
+    - run: make test
+      working-directory: "${{ env.WORKING_DIRECTORY }}"
+      env:
+        RUBYOPT: "--enable-frozen-string-literal"
diff --git a/contrib/ruby_event_store-browser-swimlane/.mutant.yml b/contrib/ruby_event_store-browser-swimlane/.mutant.yml
@@ -0,0 +1,17 @@
+# https://github.com/mbj/mutant/blob/master/docs/configuration.md
+
+usage: opensource
+requires:
+  - ruby_event_store/browser/app
+  - ruby_event_store/browser/swimlane
+includes:
+  - lib
+integration:
+  name: rspec
+mutation:
+  operators: light
+coverage_criteria:
+  process_abort: true
+matcher:
+  subjects:
+    - RubyEventStore::Browser::Swimlane*
diff --git a/contrib/ruby_event_store-browser-swimlane/Gemfile b/contrib/ruby_event_store-browser-swimlane/Gemfile
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+gemspec
+
+eval_gemfile "../../support/bundler/Gemfile.shared"
+gem "ruby_event_store", path: "../.."
+gem "ruby_event_store-browser", path: "../.."
diff --git a/contrib/ruby_event_store-browser-swimlane/Gemfile.lock b/contrib/ruby_event_store-browser-swimlane/Gemfile.lock
@@ -0,0 +1,148 @@
+PATH
+  remote: ../..
+  specs:
+    ruby_event_store (3.0.0)
+      concurrent-ruby (~> 1.0, >= 1.1.6)
+    ruby_event_store-browser (3.0.0)
+      rack
+      ruby_event_store (= 3.0.0)
+
+PATH
+  remote: .
+  specs:
+    ruby_event_store-browser-swimlane (0.1.0)
+      ruby_event_store (>= 2.0.0)
+      ruby_event_store-browser (>= 3.0.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.3)
+    concurrent-ruby (1.3.7)
+    diff-lcs (1.6.2)
+    drb (2.2.3)
+    erb (6.0.5)
+    io-console (0.8.2)
+    irb (1.18.0)
+      pp (>= 0.6.0)
+      prism (>= 1.3.0)
+      rdoc (>= 4.0.0)
+      reline (>= 0.4.2)
+    logger (1.7.0)
+    minitest (6.0.6)
+      drb (~> 2.0)
+      prism (~> 1.5)
+    mutant (0.16.3)
+      diff-lcs (>= 1.6, < 3)
+      irb (~> 1.15)
+      parser (~> 3.3.10)
+      regexp_parser (~> 2.10)
+      securerandom (>= 0.3)
+      sorbet-runtime (~> 0.6.0)
+      unparser (>= 0.8.2, < 0.10)
+    mutant-minitest (0.16.3)
+      minitest (>= 5.11, < 7)
+      mutant (= 0.16.3)
+      mutex_m (~> 0.2)
+    mutant-rspec (0.16.3)
+      mutant (= 0.16.3)
+      rspec-core (>= 3.8.0, < 5.0.0)
+    mutex_m (0.3.0)
+    parser (3.3.12.0)
+      ast (~> 2.4.1)
+      racc
+    pp (0.6.4)
+      prettyprint
+    prettyprint (0.2.0)
+    prism (1.9.0)
+    racc (1.8.1)
+    rack (3.2.6)
+    rake (13.4.2)
+    rbs (4.0.3)
+      logger
+      prism (>= 1.6.0)
+      tsort
+    rdoc (8.0.0)
+      erb
+      prism (>= 1.6.0)
+      rbs (>= 4.0.0)
+      tsort
+    regexp_parser (2.12.0)
+    reline (0.6.3)
+      io-console (~> 0.5)
+    rspec (3.13.2)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.6)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.8)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.7)
+    securerandom (0.4.1)
+    sorbet-runtime (0.6.13342)
+    tsort (0.2.0)
+    unparser (0.9.0)
+      diff-lcs (>= 1.6, < 3)
+      parser (>= 3.3.0)
+      prism (>= 1.5.1)
+
+PLATFORMS
+  arm64-darwin-24
+  ruby
+
+DEPENDENCIES
+  irb
+  mutant
+  mutant-minitest
+  mutant-rspec
+  rake (>= 10.0)
+  rspec
+  ruby_event_store!
+  ruby_event_store-browser!
+  ruby_event_store-browser-swimlane!
+
+CHECKSUMS
+  ast (2.4.3) sha256=954615157c1d6a382bc27d690d973195e79db7f55e9765ac7c481c60bdb4d383
+  concurrent-ruby (1.3.7) sha256=4412caec3a5ea2e5fdc52076724c071a81f2c0593d83b2ac8cbb8ca63b3151b0
+  diff-lcs (1.6.2) sha256=9ae0d2cba7d4df3075fe8cd8602a8604993efc0dfa934cff568969efb1909962
+  drb (2.2.3) sha256=0b00d6fdb50995fe4a45dea13663493c841112e4068656854646f418fda13373
+  erb (6.0.5) sha256=858e63488cb796c9daba8b6e9ff4b3879c395022049be9a66a8e00980e612eac
+  io-console (0.8.2) sha256=d6e3ae7a7cc7574f4b8893b4fca2162e57a825b223a177b7afa236c5ef9814cc
+  irb (1.18.0) sha256=de9454a0703a54704b9811a5ef31a60c86949fbf4013fcf244fabc7c775248e3
+  logger (1.7.0) sha256=196edec7cc44b66cfb40f9755ce11b392f21f7967696af15d274dde7edff0203
+  minitest (6.0.6) sha256=153ea36d1d987a62942382b61075745042a2b3123b1cd48f4c3675af9cc7d6f1
+  mutant (0.16.3) sha256=7e10fb09b80a78d82f8e38283fc1e4d562cbb1392451e2a21611ea2bc44b5023
+  mutant-minitest (0.16.3) sha256=504d110c1bd503528a7e57a4f062960e571bba4e3939e4a66ddc0f75d2071d90
+  mutant-rspec (0.16.3) sha256=006ee9640800f205278604bb2160ca4b1d0013464fb216a48b7c09571a1fc547
+  mutex_m (0.3.0) sha256=cfcb04ac16b69c4813777022fdceda24e9f798e48092a2b817eb4c0a782b0751
+  parser (3.3.12.0) sha256=21a6d7f755d5a24dfbdc6e6b772e4e879a52e7631a88bc5a3a134606052c9828
+  pp (0.6.4) sha256=dfcb0fce700c41456265922884f9fe195d7fbb0674a3578e6c0f69588e82b570
+  prettyprint (0.2.0) sha256=2bc9e15581a94742064a3cc8b0fb9d45aae3d03a1baa6ef80922627a0766f193
+  prism (1.9.0) sha256=7b530c6a9f92c24300014919c9dcbc055bf4cdf51ec30aed099b06cd6674ef85
+  racc (1.8.1) sha256=4a7f6929691dbec8b5209a0b373bc2614882b55fc5d2e447a21aaa691303d62f
+  rack (3.2.6) sha256=5ed78e1f73b2e25679bec7d45ee2d4483cc4146eb1be0264fc4d94cb5ef212c2
+  rake (13.4.2) sha256=cb825b2bd5f1f8e91ca37bddb4b9aaf345551b4731da62949be002fa89283701
+  rbs (4.0.3) sha256=5a7bf70e2628549d9a1f44eae447b2cfe55968a9c60cfff52693a4bdcc020e14
+  rdoc (8.0.0) sha256=03bf8c08a9639658855a0cfd77c0abca8325c227693f7f33f82957811348c469
+  regexp_parser (2.12.0) sha256=35a916a1d63190ab5c9009457136ae5f3c0c7512d60291d0d1378ba18ce08ebb
+  reline (0.6.3) sha256=1198b04973565b36ec0f11542ab3f5cfeeec34823f4e54cebde90968092b1835
+  rspec (3.13.2) sha256=206284a08ad798e61f86d7ca3e376718d52c0bc944626b2349266f239f820587
+  rspec-core (3.13.6) sha256=a8823c6411667b60a8bca135364351dda34cd55e44ff94c4be4633b37d828b2d
+  rspec-expectations (3.13.5) sha256=33a4d3a1d95060aea4c94e9f237030a8f9eae5615e9bd85718fe3a09e4b58836
+  rspec-mocks (3.13.8) sha256=086ad3d3d17533f4237643de0b5c42f04b66348c28bf6b9c2d3f4a3b01af1d47
+  rspec-support (3.13.7) sha256=0640e5570872aafefd79867901deeeeb40b0c9875a36b983d85f54fb7381c47c
+  ruby_event_store (3.0.0)
+  ruby_event_store-browser (3.0.0)
+  ruby_event_store-browser-swimlane (0.1.0)
+  securerandom (0.4.1) sha256=cc5193d414a4341b6e225f0cb4446aceca8e50d5e1888743fac16987638ea0b1
+  sorbet-runtime (0.6.13342) sha256=dbeb9892597f593ed2b29e38018912787f6c4e0c4b736d8af0d6bd3c63bde3c3
+  tsort (0.2.0) sha256=9650a793f6859a43b6641671278f79cfead60ac714148aabe4e3f0060480089f
+  unparser (0.9.0) sha256=4331f174a73a23b69250b13d47da3794ed1449711ee0f9ed8947dc020ba76067
+
+BUNDLED WITH
+  4.0.10
diff --git a/contrib/ruby_event_store-browser-swimlane/Makefile b/contrib/ruby_event_store-browser-swimlane/Makefile
@@ -0,0 +1,8 @@
+GEM_VERSION  = $(shell cat lib/ruby_event_store/browser/swimlane/version.rb | grep VERSION | egrep -o '[0-9]+\.[0-9]+\.[0-9]+')
+GEM_NAME     = ruby_event_store-browser-swimlane
+
+include ../../support/make/install.mk
+include ../../support/make/test.mk
+include ../../support/make/mutant.mk
+include ../../support/make/gem.mk
+include ../../support/make/help.mk
diff --git a/contrib/ruby_event_store-browser-swimlane/README.md b/contrib/ruby_event_store-browser-swimlane/README.md
@@ -0,0 +1,14 @@
+# RubyEventStore::Browser::Swimlane
+
+A [RubyEventStore browser](https://railseventstore.org) extension comparing several streams side by side: their events merged into one newest-first timeline table, one column per stream, with infinite scroll. An event linked into several compared streams renders once, as a link in each matching column. The timeline can be sorted along either axis of the bi-temporal model — created-at (default) or valid-at.
+
+## Usage
+
+```ruby
+mount RubyEventStore::Browser::App.for(
+  event_store_locator: -> { Rails.configuration.event_store },
+  extensions: [RubyEventStore::Browser::Swimlane.new],
+) => "/res"
+```
+
+A `Compare` link shows up on every stream page; the comparison itself lives under `/swimlane?streams[]=first&streams[]=second`.