CI/CD Automation for jaegertracing/jaeger-lib

CI/CD Automation Scripts for jaegertracing/jaeger-lib

Overview

The jaegertracing/jaeger-lib repository includes various automation scripts for continuous integration and continuous deployment (CI/CD). These scripts are primarily defined in the Makefile and the shell and Python scripts found in the scripts/ directory.

Makefile

The Makefile defines multiple targets that automate the build, testing, and linting processes.

Available Targets

Default Target:
```
.DEFAULT_GOAL: test-and-lint
```

Install Dependencies

.PHONY: install-dep
install-dep:
    - curl -L -s https://github.com/golang/dep/releases/download/v0.5.4/dep-linux-amd64 -o $$GOPATH/bin/dep
    - chmod +x $$GOPATH/bin/dep

This target installs the Golang dependency manager dep.

Set up CI dependencies

.PHONY: install-ci
install-ci: install
    go get github.com/wadey/gocovmerge
    go get github.com/mattn/goveralls
    go get golang.org/x/tools/cmd/cover
    go get golang.org/x/lint/golint

This target focuses on setting up essential tools for CI/CD including code coverage and linting tools.

Run Tests and Check for Errors

.PHONY: test-ci
test-ci: dep-check cover lint

The test-ci target checks dependencies and runs tests with code coverage and linting.

Linting Target

.PHONY: lint
lint:
    $(GOVET) ./...
    @cat /dev/null > $(LINT_LOG)
    @$(foreach pkg, $(PACKAGES), $(GOLINT) $(pkg) >> $(LINT_LOG) || true;)
    @[ ! -s "$(LINT_LOG)" ] || (echo "Lint Failures" | cat - $(LINT_LOG) && false)
    @$(GOFMT) -e -s -l $(ALL_SRC) > $(FMT_LOG)

This target checks the code for potential issues using govet and golint, and also formats the code according to the Go formatting guidelines.

Coverage Reports

.PHONY: cover
cover:
    $(GOTEST) -cover -coverprofile cover.out ./...

.PHONY: cover-html
cover-html: cover
    go tool cover -html=cover.out -o cover.html

The cover target generates a coverage report, and cover-html converts this report into an HTML format for easy visualization.

Scripts

Two scripts are provided in the scripts/ directory that aid in the automation of certain tasks.

Update License Script (Shell)
```
#!/bin/bash

set -e
```

This script starts with an instruction to stop execution if any command fails.

Update License Script (Python)

# Python code that updates licenses could be here

While specific functionality and contents of the updateLicense.py script are not outlined, it serves the purpose of updating license information, likely processing files in the repository.

Conclusion

The CI/CD process in jaegertracing/jaeger-lib is orchestrated primarily through the Makefile with additional support from scripts to manage licensing. The repository is equipped for effective testing, linting, and code coverage, promoting quality and maintainability through automation.

For individual developers seeking to contribute or enhance their build and automation workflows, it is recommended to become familiar with the Makefile targets and the scripts provided, ensuring a smooth integration and deployment process.