mirror of
https://github.com/89luca89/distrobox.git
synced 2026-08-19 01:14:49 -05:00
Emanuele De CupisandAlessio Biancalana
1f883d2fbe
* chore: disable mdlint (#6) * resolve lint issues Some issues where detected by the CI once run: * use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) * File is not properly formatted (goimports) * Magic number: 12, in <condition> detected (mnd) * error-format: fmt.Errorf can be replaced with errors.New (perfsprint) --------- Co-authored-by: Alessio Biancalana <alessio@dottorblaster.it>
111 lines
2.3 KiB
Go
111 lines
2.3 KiB
Go
package providers
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"os/exec"
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"strings"
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"github.com/89luca89/distrobox/pkg/containermanager"
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)
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type Docker struct {
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verbose bool
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}
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var _ containermanager.ContainerManager = &Docker{}
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func NewDocker(verbose bool) *Docker {
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return &Docker{
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verbose: verbose,
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}
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}
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func (d *Docker) Name() string {
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return "docker"
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}
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// dockerContainer represents the JSON output from `docker ps --format json`.
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type dockerContainer struct {
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ID string `json:"ID"`
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Image string `json:"Image"`
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Names string `json:"Names"`
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Status string `json:"Status"`
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Labels string `json:"Labels"`
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}
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func (d *Docker) ListContainers(ctx context.Context) ([]containermanager.Container, error) {
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args := []string{"ps", "-a", "--no-trunc", "--format", "json"}
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out, err := d.run(ctx, args)
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if err != nil {
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return nil, err
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}
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return parseContainerList(out)
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}
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func (d *Docker) run(ctx context.Context, args []string) (string, error) {
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cmd := exec.CommandContext(ctx, "docker", args...)
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var stdout, stderr bytes.Buffer
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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if err != nil {
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captured := strings.TrimSpace(stderr.String())
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if captured != "" {
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return "", fmt.Errorf("command execution failed: %s", captured)
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}
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return "", fmt.Errorf("command execution failed: %w", err)
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}
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return stdout.String(), nil
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}
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func parseContainerList(output string) ([]containermanager.Container, error) {
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var containers []containermanager.Container
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for line := range strings.SplitSeq(strings.TrimSpace(output), "\n") {
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if line == "" {
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continue
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}
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var dc dockerContainer
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if err := json.Unmarshal([]byte(line), &dc); err != nil {
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return nil, fmt.Errorf("failed to parse container JSON: %w", err)
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}
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const containerIDMaxLength = 12
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id := dc.ID
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if len(id) > containerIDMaxLength {
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id = id[:containerIDMaxLength]
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}
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containers = append(containers, containermanager.Container{
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ID: id,
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Image: dc.Image,
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Name: dc.Names,
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Status: dc.Status,
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Labels: parseLabels(dc.Labels),
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})
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}
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return containers, nil
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}
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func parseLabels(labels string) map[string]string {
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result := make(map[string]string)
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if labels == "" {
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return result
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}
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for label := range strings.SplitSeq(labels, ",") {
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key, value, found := strings.Cut(label, "=")
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if found {
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result[key] = value
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}
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}
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return result
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}
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