ci: migrate long sims (#6084)

Cancel ci if no .go files have been touched. There is no clean way of
doing this so i opted to `exit 1` on the diff job if no go files were
changed and have builds depend on diff passing

- migrate proto checks  to github actions.
- providing make commands to use buf within docker.
-  test-sim-multi-seed-long migration to github actions. Follows same
  logic and only runs on release branches.
-  add protobuf section to CONTRIBUTING.md.

.github/workflows/proto.yml

@@ -0,0 +1,19 @@
+name: Proto check
+on: [pull_request]
+jobs:
+  proto-checks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: technote-space/get-diff-action@v1
+        id: git_diff
+        with:
+          SUFFIX_FILTER: .proto
+          SET_ENV_NAME_INSERTIONS: 1
+          SET_ENV_NAME_LINES: 1
+      - name: lint
+        run: make proto-lint-docker
+        if: "env.GIT_DIFF != ''"
+      - name: check-breakage
+        run: make proto-check-breaking-docker
+        if: "env.GIT_DIFF != ''"

.github/workflows/release-sims.yml

@@ -0,0 +1,47 @@
+name: Release Sims
+on: 
+  push: 
+    branches: 
+      - /^v.*/
+    
+jobs:
+  cleanup-runs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: rokroskar/workflow-run-cleanup-action@master
+        env:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+    if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/master'"
+
+  build:
+    runs-on: ubuntu-latest
+    if: "!contains(github.event.head_commit.message, 'skip-sims')"
+    steps:
+      - uses: actions/checkout@v2
+      - run: |
+          make build
+
+  install-runsim:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: install runsim
+        run: |
+          export GO111MODULE="on" && go get github.com/cosmos/tools/cmd/runsim@v1.0.0
+      - uses: actions/cache@v1
+        with:
+          path: ~/go/bin
+          key: ${{ runner.os }}-go-runsim-binary
+
+  test-sim-multi-seed-long:
+    runs-on: ubuntu-latest
+    needs: [build, install-runsim]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v1
+        with:
+          path: ~/go/bin
+          key: ${{ runner.os }}-go-runsim-binary
+      - name: test-sim-multi-seed-long
+        run: |
+          make test-sim-multi-seed-long

.github/workflows/sims.yml

@@ -1,25 +1,43 @@
 name: Sims
 on: [pull_request]
 jobs:
+  diff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: technote-space/get-diff-action@v1
+        id: git_diff
+        with:
+          SUFFIX_FILTER: |
+            .go
+            .mod
+            .sum
+          SET_ENV_NAME_INSERTIONS: 1
+          SET_ENV_NAME_LINES: 1
+      - name: Fail if no changes
+        # this is used to notify the other jobs that there are no changes and so they should not run
+        run: exit 1
+        if: "env.GIT_DIFF == ''"
+
   cleanup-runs:
     runs-on: ubuntu-latest
+    if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/master'"
     steps:
       - uses: rokroskar/workflow-run-cleanup-action@master
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-    if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/master'"
 
   build:
     runs-on: ubuntu-latest
     if: "!contains(github.event.head_commit.message, 'skip-sims')"
     steps:
-      - uses: actions/setup-go@v2-beta
       - uses: actions/checkout@v2
       - run: |
           make build
+
   install-runsim:
     runs-on: ubuntu-latest
-    needs: build
+    needs: [build, diff]
     steps:
       - uses: actions/setup-go@v2-beta
       - name: install runsim
@@ -32,9 +50,8 @@ jobs:
 
   test-sim-nondeterminism:
     runs-on: ubuntu-latest
-    needs: [build, install-runsim]
+    needs: [build, install-runsim, diff]
     steps:
-      - uses: actions/setup-go@v2-beta
       - uses: actions/checkout@v2
       - uses: actions/cache@v1
         with:
@@ -46,9 +63,8 @@ jobs:
 
   test-sim-import-export:
     runs-on: ubuntu-latest
-    needs: [build, install-runsim]
+    needs: [build, install-runsim, diff]
     steps:
-      - uses: actions/setup-go@v2-beta
       - uses: actions/checkout@v2
       - uses: actions/cache@v1
         with:
@@ -60,9 +76,8 @@ jobs:
 
   test-sim-after-import:
     runs-on: ubuntu-latest
-    needs: [build, install-runsim]
+    needs: [build, install-runsim, diff]
     steps:
-      - uses: actions/setup-go@v2-beta
       - uses: actions/checkout@v2
       - uses: actions/cache@v1
         with:
@@ -74,9 +89,8 @@ jobs:
 
   test-sim-multi-seed-short:
     runs-on: ubuntu-latest
-    needs: [build, install-runsim]
+    needs: [build, install-runsim, diff]
     steps:
-      - uses: actions/setup-go@v2-beta
       - uses: actions/checkout@v2
       - uses: actions/cache@v1
         with:

.github/workflows/test.yml

@@ -18,12 +18,21 @@ jobs:
     steps:
       - uses: actions/setup-go@v2-beta
       - uses: actions/checkout@v2
+      - uses: technote-space/get-diff-action@v1
+        id: git_diff
+        with:
+          SUFFIX_FILTER: |
+            .go
+            .mod
+            .sum
       - name: build
         run: |
           make build
+        if: "env.GIT_DIFF != ''"
       - name: test & coverage report creation
         run: |
           go test ./... -mod=readonly -timeout 12m -race -coverprofile=coverage.txt -covermode=atomic -tags='ledger test_ledger_mock'
+        if: "env.GIT_DIFF != ''"
       - name: filter out DONTCOVER
         run: |
           excludelist="$(find ./ -type f -name '*.go' | xargs grep -l 'DONTCOVER')"
@@ -34,7 +43,9 @@ jobs:
             echo "Excluding ${filename} from coverage report..."
             sed -i.bak "/$(echo $filename | sed 's/\//\\\//g')/d" coverage.txt
           done
+        if: "env.GIT_DIFF != ''"
       - uses: codecov/codecov-action@v1
         with:
           file: ./coverage.txt # optional
           fail_ci_if_error: true
+        if: "env.GIT_DIFF != ''"