add workflows

Author: ndyakov

.github/workflows/build.yml

@@ -0,0 +1,26 @@
+name: Go Test & Coverage
+on:
+  push:
+    branches:
+      - main
+      - master
+  pull_request:
+    branches:
+      - main
+      - master
+jobs:
+    test:
+        runs-on: ubuntu-latest
+        steps:
+        - uses: actions/checkout@v4
+        - uses: actions/setup-go@v5
+          with:
+              go-version: stable
+        - name: Install dependencies
+          run: go mod tidy
+        - name: Run tests with coverage
+          run: go test ./... -coverprofile=./cover.out -covermode=atomic -coverpkg=./...
+        - name: Check coverage
+          uses: vladopajic/go-test-coverage@v2
+          with:
+          config: ./.testcoverage.yml

.github/workflows/golangci-lint.yml

@@ -0,0 +1,28 @@
+name: golangci-lint
+on:
+  push:
+    branches:
+      - main
+      - master
+  pull_request:
+    branches:
+      - main
+      - master
+
+permissions:
+  contents: read
+  pull-requests: read
+
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: stable
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v7
+        with:
+          version: v2.0

.testcoverage.yml

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+# (mandatory)
+# Path to coverage profile file (output of `go test -coverprofile` command).
+#
+# For cases where there are many coverage profiles, such as when running
+# unit tests and integration tests separately, you can combine all those
+# profiles into one. In this case, the profile should have a comma-separated list
+# of profile files, e.g., 'cover_unit.out,cover_integration.out'.
+profile: cover.out
+
+# Holds coverage thresholds percentages, values should be in range [0-100].
+threshold:
+  # (optional; default 0)
+  # Minimum coverage percentage required for individual files.
+  file: 70
+
+  # (optional; default 0)
+  # Minimum coverage percentage required for each package.
+  package: 80
+
+  # (optional; default 0)
+  # Minimum overall project coverage percentage required.
+  total: 95
+
+# Holds regexp rules which will override thresholds for matched files or packages
+# using their paths.
+#
+# First rule from this list that matches file or package is going to apply
+# new threshold to it. If project has multiple rules that match same path,
+# override rules should be listed in order from specific to more general rules.
+override:
+  # Increase coverage threshold to 100% for `foo` package
+  # (default is 80, as configured above in this example).
+  - path: ^pkg/lib/foo$
+    threshold: 100
+
+# Holds regexp rules which will exclude matched files or packages
+# from coverage statistics.
+exclude:
+  # Exclude files or packages matching their paths
+  paths:
+    - \.pb\.go$    # excludes all protobuf generated files
+    - ^pkg/bar     # exclude package `pkg/bar`
+
+# File name of go-test-coverage breakdown file, which can be used to
+# analyze coverage difference.
+breakdown-file-name: ''
+
+diff:
+  # File name of go-test-coverage breakdown file which will be used to
+  # report coverage difference.
+  base-breakdown-file-name: ''