Initial library idea

Create library that allows for `ecs.Lookup("host.os.name", "8")`
to return information about the specified field obtained for a
specific ECS version.

.github/dependabot.yml

@@ -0,0 +1,19 @@
+---
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 2
+  - package-ecosystem: "gomod"
+    directory: "/internal/generator"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 2
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every week
+      interval: "weekly"
+    open-pull-requests-limit: 2

.github/workflows/generate.yml

@@ -0,0 +1,50 @@
+# This is a hack to update the code when new ECS tags are pushed.
+name: generate
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+  push:
+    branches:
+      - 'main'
+  workflow_dispatch:
+
+jobs:
+  ecs-generate:
+    permissions:
+      # Allow job to write to the branch.
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v4
+        with:
+          go-version: 1.21
+          cache-dependency-path: ./internal/generator/go.sum
+
+      - name: generate
+        working-directory: ./internal/generator
+        run: go run .
+
+      - name: check for modified versions
+        id: is-changed
+        run: echo "modified=$(if git status --porcelain | grep -q -E 'internal/version'; then echo "true"; else echo "false"; fi)" >> $GITHUB_OUTPUT
+
+      - name: get elastic/ecs version
+        id: ecs-version
+        run: echo "version=$(cd ~/.ecs-generator/git/ecs; git describe --tags)" >> $GITHUB_OUTPUT
+
+      - name: commit updated code
+        if: steps.is-changed.outputs.modified == 'true'
+        env:
+          ECS_VERSION: ${{ steps.ecs-version.outputs.version }}
+        run: |
+          git config --global user.name 'github-actions[bot]'
+          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
+          git add -A
+          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
+          git commit -m "ecs@${ECS_VERSION} update
+          
+          Update code based on https://github.com/elastic/ecs/releases/tag/${ECS_VERSION}"
+          git push

.github/workflows/go.yml

@@ -0,0 +1,40 @@
+name: Go
+
+on:
+  push:
+    tags:
+      - 'v*'
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+
+      - name: Test
+        run: go test ./...
+
+  test-generator:
+    name: test-generator
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+
+      - name: Test
+        working-directory: ./internal/generator
+        run: go run .

.github/workflows/lint.yml

@@ -0,0 +1,66 @@
+---
+
+name: lint
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  golangci:
+    name: golangci
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: '0'
+
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+          cache: false
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: latest
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: latest
+          working-directory: ./internal/generator
+
+  go-mod-tidy:
+    name: go-mod-tidy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+
+      - name: Run go mod tidy
+        run: go mod tidy
+
+      - name: Run go mod tidy
+        working-directory: ./internal/generator
+        run: go mod tidy
+
+      - name: Check git diff
+        run: git diff --exit-code
+
+  go-licenser:
+    name: go-licenser
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+
+      - name: Check headers
+        run: go run github.com/elastic/go-licenser@latest -d

.golangci.yml

@@ -0,0 +1,43 @@
+---
+
+run:
+  issues-exit-code: 1
+  modules-download-mode: readonly
+
+linters:
+  disable-all: true
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - stylecheck
+    - typecheck
+    - unused
+    - errorlint
+    - gofumpt
+    - goimports
+    - godox
+    - misspell
+    - prealloc
+    - unconvert
+    - unused
+    - revive
+  fast: false
+
+linters-settings:
+  goimports:
+    local-prefixes: github.com/andrewkroh/go-ecs
+  gofumpt:
+    extra-rules: true
+  stylecheck:
+    checks:
+      - all
+
+issues:
+  include:
+   # If you're going to write a comment follow the conventions.
+   # https://go.dev/doc/effective_go#commentary.
+   # comment on exported (.+) should be of the form "(.+)..."
+   - EXC0014