[LANGPLAT-87] Implement automated release tagging for dd-trace-go v2

go.work

@@ -65,6 +65,7 @@ use (
 	./internal/exectracetest
 	./internal/setup-smoke-test
 	./internal/traceprof/traceproftest
+	./tools/autoreleasetagger
 	./tools/fixmodules
 	./tools/v2check
 	./tools/v2check/_stage

tools/autoreleasetagger/.gitignore

@@ -0,0 +1,3 @@
+tmp
+autoreleasetagger
+main

tools/autoreleasetagger/Makefile

@@ -0,0 +1,33 @@
+.PHONY: fmt
+fmt:
+	go run mvdan.cc/gofumpt@latest -l -w .
+
+.PHONY: vet
+vet:
+	GOWORK=off go vet ./...
+
+.PHONY: fix
+fix: build
+	GOWORK=off golangci-lint run --fix --enable-all --no-config ./...
+
+.PHONY: lint
+lint:
+	GOWORK=off golangci-lint run --enable-all --no-config ./...
+
+.PHONY: test
+test: deps
+	GOWORK=off go test -v ./...
+
+deps:
+	go mod tidy
+
+.PHONY: build
+build: deps
+	go build -o autoreleasetagger ./main.go
+
+tmp/help.txt: build
+	./autoreleasetagger -h > tmp/help.txt 2>&1
+
+.PHONY: README.md
+README.md: tmp/help.txt
+	go run github.com/campoy/embedmd@latest -w README.md

tools/autoreleasetagger/README.md

@@ -0,0 +1,91 @@
+# Auto Release Tagger
+
+This tool ensures that all modules in a monorepo are tagged correctly, respecting dependency order—tagging dependencies first before their dependents.
+
+- **Automatic Versioning**: Determines the next version based on existing tags.
+- **Nested Module Support**: Tags all modules in a repository.
+- **Dependency Awareness**: Ensures dependencies are tagged before their dependents.
+
+## 📌 Prerequisites
+
+Before running the tool, ensure you have updated the version according to the [Release Checklist](https://datadoghq.atlassian.net/wiki/spaces/DL/pages/2477949158/Template+v+MAJOR+.+MINOR+.+PATCH+Release+Checklist#Release-branch).
+
+## 🛠️ Usage
+
+Run the following command to tag the release:
+
+```sh
+go run ./tools/autoreleasetagger -root ../..
+```
+
+Dry run:
+
+```sh
+go run ./tools/autoreleasetagger -dry-run -root ../..
+```
+
+Run without pushing tags:
+
+```sh
+go run ./tools/autoreleasetagger -disable-push -root ../..
+```
+
+## 📖 Help
+
+[embedmd]:# (tmp/help.txt)
+```txt
+Usage of ./autoreleasetagger:
+  -disable-push
+    	Disable pushing tags to remote
+  -dry-run
+    	Enable dry run mode (skip actual operations)
+  -exclude-dirs string
+    	Comma-separated list of directories to exclude. Paths are relative to the root directory
+  -exclude-modules string
+    	Comma-separated list of modules to exclude
+  -loglevel string
+    	Log level (debug, info, warn, error) (default "info")
+  -remote string
+    	Git remote name (default "origin")
+  -root string
+    	Path to the root directory (required)
+```
+
+
+## 🚀 Development
+
+### Helpful Commands for Cleaning Up
+
+```sh
+export GIT_REMOTE=${GIT_REMOTE:-origin}
+
+# List local-only tags
+git tag -l | grep -v "$(git ls-remote --tags $GIT_REMOTE | sed 's/.*refs\/tags\///g')"
+
+# Remove local-only tags
+git tag -l | grep -v "$(git ls-remote --tags $GIT_REMOTE | sed 's/.*refs\/tags\///g')" | xargs git tag -d
+```
+
+#### Git Alias Setup
+
+```sh
+export GIT_REMOTE=${GIT_REMOTE:-origin}
+
+# List tags that exist only locally
+git config --global alias.list-local-tags "!git tag -l | grep -v \"$(git ls-remote --tags $GIT_REMOTE | sed 's/.*refs\/tags\///g')\""
+
+# Remove tags that exist only locally
+git config --global alias.remove-local-tags "!git tag -l | grep -v \"$(git ls-remote --tags $GIT_REMOTE | sed 's/.*refs\/tags\///g')\" | xargs git tag -d"
+```
+
+**Usage**
+
+```sh
+export GIT_REMOTE=${GIT_REMOTE:-origin}
+
+# List local-only tags
+git list-local-tags
+
+# Remove local-only tags
+git remove-local-tags
+```

tools/autoreleasetagger/go.mod

@@ -0,0 +1,5 @@
+module github.com/DataDog/dd-trace-go/v2/tools/autoreleasetagger
+
+go 1.22.0
+
+require github.com/DataDog/dd-trace-go/v2 v2.0.0-rc.2

tools/autoreleasetagger/go.sum

@@ -0,0 +1,2 @@
+github.com/DataDog/dd-trace-go/v2 v2.0.0-rc.2 h1:V9IEiUjs5+ye8xTReLo2KS/P4j0HvwS+YJXhRnmmDDY=
+github.com/DataDog/dd-trace-go/v2 v2.0.0-rc.2/go.mod h1:5heIdFEknx0pqz3WykyjDo/aMaxjkd8bMySlHPDj6jA=