compose/pkg/compose/compose.go
Nicolas De Loof abb2ddba88 compose config to espace $ signs so compose file is still valid
Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
2021-09-17 10:32:52 +02:00

92 lines
2.5 KiB
Go

/*
Copyright 2020 Docker Compose CLI authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package compose
import (
"bytes"
"context"
"encoding/json"
"fmt"
"strings"
"github.com/docker/compose/v2/pkg/api"
"github.com/compose-spec/compose-go/types"
"github.com/docker/cli/cli/config/configfile"
moby "github.com/docker/docker/api/types"
"github.com/docker/docker/client"
"github.com/sanathkr/go-yaml"
)
// NewComposeService create a local implementation of the compose.Service API
func NewComposeService(apiClient client.APIClient, configFile *configfile.ConfigFile) api.Service {
return &composeService{
apiClient: apiClient,
configFile: configFile,
}
}
type composeService struct {
apiClient client.APIClient
configFile *configfile.ConfigFile
}
func getCanonicalContainerName(c moby.Container) string {
// Names return container canonical name /foo + link aliases /linked_by/foo
for _, name := range c.Names {
if strings.LastIndex(name, "/") == 0 {
return name[1:]
}
}
return c.Names[0][1:]
}
func getContainerNameWithoutProject(c moby.Container) string {
name := getCanonicalContainerName(c)
project := c.Labels[api.ProjectLabel]
prefix := fmt.Sprintf("%s_%s_", project, c.Labels[api.ServiceLabel])
if strings.HasPrefix(name, prefix) {
return name[len(project)+1:]
}
return name
}
func (s *composeService) Convert(ctx context.Context, project *types.Project, options api.ConvertOptions) ([]byte, error) {
switch options.Format {
case "json":
marshal, err := json.MarshalIndent(project, "", " ")
if err != nil {
return nil, err
}
return escapeDollarSign(marshal), nil
case "yaml":
marshal, err := yaml.Marshal(project)
if err != nil {
return nil, err
}
return escapeDollarSign(marshal), nil
default:
return nil, fmt.Errorf("unsupported format %q", options)
}
}
func escapeDollarSign(marshal []byte) []byte {
dollar := []byte{'$'}
escDollar := []byte{'$', '$'}
return bytes.ReplaceAll(marshal, dollar, escDollar)
}