// writeBuildScript is a helper function that
// will generate the build script file in the builder's
// temp directory to be added to the Image.
func (b *Builder) writeBuildScript(dir string) error {
f := buildfile.New()
// add environment variables for user env
f.WriteEnv("TERM", "xterm")
f.WriteEnv("GOPATH", "/var/cache/drone")
f.WriteEnv("SHELL", "/bin/bash")
// add environment variables about the build
f.WriteEnv("CI", "true")
f.WriteEnv("DRONE", "true")
f.WriteEnv("DRONE_REMOTE", b.Repo.Path)
f.WriteEnv("DRONE_BRANCH", b.Repo.Branch)
f.WriteEnv("DRONE_COMMIT", b.Repo.Commit)
f.WriteEnv("DRONE_PR", b.Repo.PR)
f.WriteEnv("DRONE_BUILD_DIR", b.Repo.Dir)
// add environment variables for code coverage
// systems, like coveralls.
f.WriteEnv("CI_NAME", "DRONE")
f.WriteEnv("CI_BUILD_URL", "")
f.WriteEnv("CI_REMOTE", b.Repo.Path)
f.WriteEnv("CI_BRANCH", b.Repo.Branch)
f.WriteEnv("CI_PULL_REQUEST", b.Repo.PR)
// add /etc/hosts entries
for _, mapping := range b.Build.Hosts {
f.WriteHost(mapping)
}
if len(b.Key) != 0 {
f.WriteFile("$HOME/.ssh/id_rsa", b.Key, 600)
}
// if the repository is remote then we should
// add the commands to the build script to
// clone the repository
if b.Repo.IsRemote() {
for _, cmd := range b.Repo.Commands() {
f.WriteCmd(cmd)
}
}
// if the commit is for merging a pull request
// we should only execute the build commands,
// and omit the deploy and publish commands.
if len(b.Repo.PR) == 0 {
b.Build.Write(f, b.Repo)
} else {
// only write the build commands
b.Build.WriteBuild(f)
}
scriptfilePath := filepath.Join(dir, "drone")
return ioutil.WriteFile(scriptfilePath, f.Bytes(), 0700)
}
func setUp(input string) (string, error) {
var buildStruct build
err := yaml.Unmarshal([]byte(input), &buildStruct)
if err != nil {
return "", err
}
bf := buildfile.New()
buildStruct.Deploy.Write(bf, nil)
return bf.String(), err
}
func setUpWithDrone(input string) (string, error) {
var buildStruct PublishToDrone
err := yaml.Unmarshal([]byte(input), &buildStruct)
if err != nil {
return "", err
}
bf := buildfile.New()
buildStruct.Publish.Write(bf, &repo.Repo{Name: "name"})
return bf.String(), err
}
func TestWriteBuildScript(t *testing.T) {
// temporary directory to store file
dir, _ := ioutil.TempDir("", "drone-test-")
defer os.RemoveAll(dir)
b := Builder{}
b.Build = &script.Build{
Hosts: []string{"127.0.0.1"}}
b.Key = []byte("ssh-rsa AAA...")
b.Repo = &repo.Repo{
Path: "git://github.com/voxxit/drone.git",
Branch: "master",
Commit: "e7e046b35",
PR: "123",
Dir: "/var/cache/drone/github.com/voxxit/drone"}
b.writeBuildScript(dir)
// persist a dummy build script to disk
script, err := ioutil.ReadFile(filepath.Join(dir, "drone"))
if err != nil {
t.Errorf("Expected id_rsa file saved to disk")
}
f := buildfile.New()
f.WriteEnv("TERM", "xterm")
f.WriteEnv("GOPATH", "/var/cache/drone")
f.WriteEnv("SHELL", "/bin/bash")
f.WriteEnv("CI", "true")
f.WriteEnv("DRONE", "true")
f.WriteEnv("DRONE_REMOTE", "git://github.com/voxxit/drone.git")
f.WriteEnv("DRONE_BRANCH", "master")
f.WriteEnv("DRONE_COMMIT", "e7e046b35")
f.WriteEnv("DRONE_PR", "123")
f.WriteEnv("DRONE_BUILD_DIR", "/var/cache/drone/github.com/voxxit/drone")
f.WriteEnv("CI_NAME", "DRONE")
f.WriteEnv("CI_BUILD_URL", "")
f.WriteEnv("CI_REMOTE", "git://github.com/voxxit/drone.git")
f.WriteEnv("CI_BRANCH", "master")
f.WriteEnv("CI_PULL_REQUEST", "123")
f.WriteHost("127.0.0.1")
f.WriteFile("$HOME/.ssh/id_rsa", []byte("ssh-rsa AAA..."), 600)
f.WriteCmd("git clone --depth=0 --recursive git://github.com/voxxit/drone.git /var/cache/drone/github.com/voxxit/drone")
f.WriteCmd("git fetch origin +refs/pull/123/head:refs/remotes/origin/pr/123")
f.WriteCmd("git checkout -qf -b pr/123 origin/pr/123")
if string(script) != f.String() {
t.Errorf("Expected build script value saved as %s, got %s", f.String(), script)
}
}