func TestRunOrder(t *testing.T) {
var m Manifest
data := []byte(`web:
links:
- postgres
- redis
worker_2:
links:
- postgres
- redis
worker_1:
links:
- postgres
- redis
redis:
image: convox/redis
postgres:
image: convox/postgres
`)
_ = yaml.Unmarshal(data, &m)
cases := Cases{
{m.runOrder(), []string{"postgres", "redis", "web", "worker_1", "worker_2"}},
}
_assert(t, cases)
}
func Read(dir string) (*Manifest, error) {
data, err := ioutil.ReadFile(filepath.Join(dir, "docker-compose.yml"))
if err != nil {
return nil, fmt.Errorf("file not found: docker-compose.yml")
}
var m Manifest
err = yaml.Unmarshal(data, &m)
if err != nil {
return nil, err
}
if denv := filepath.Join(dir, ".env"); exists(denv) {
data, err := ioutil.ReadFile(denv)
if err != nil {
return nil, err
}
scanner := bufio.NewScanner(bytes.NewReader(data))
for scanner.Scan() {
if strings.Index(scanner.Text(), "=") > -1 {
parts := strings.SplitN(scanner.Text(), "=", 2)
err := os.Setenv(parts[0], parts[1])
if err != nil {
return nil, err
}
}
}
if err := scanner.Err(); err != nil {
return nil, err
}
}
for name, entry := range m {
for i, volume := range entry.Volumes {
parts := strings.Split(volume, ":")
for j, part := range parts {
if !filepath.IsAbs(part) {
parts[j] = filepath.Join(dir, part)
}
}
m[name].Volumes[i] = strings.Join(parts, ":")
}
}
return &m, nil
}