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cli.go
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cli.go
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package docker
import (
"bytes"
"github.com/paketo-buildpacks/packit/pexec"
)
const ExecutableName = "docker"
//go:generate faux --interface Executable --output fakes/executable.go
type Executable interface {
Execute(pexec.Execution) error
}
type CLI struct {
executable Executable
}
func NewCLI(executable Executable) CLI {
return CLI{
executable: executable,
}
}
type BuildOptions struct {
Remove bool
NoCache bool
Tag string
File string
Context string
}
func (c CLI) Build(options BuildOptions) (string, string, error) {
execution := pexec.Execution{
Args: []string{"build"},
}
if options.Remove {
execution.Args = append(execution.Args, "--rm")
}
if options.NoCache {
execution.Args = append(execution.Args, "--no-cache")
}
if options.Tag != "" {
execution.Args = append(execution.Args, "--tag", options.Tag)
}
if options.File != "" {
execution.Args = append(execution.Args, "--file", options.File)
}
if options.Context == "" {
options.Context = "."
} else {
execution.Dir = options.Context
}
execution.Args = append(execution.Args, options.Context)
stdout := bytes.NewBuffer(nil)
execution.Stdout = stdout
stderr := bytes.NewBuffer(nil)
execution.Stderr = stderr
err := c.executable.Execute(execution)
if err != nil {
return stdout.String(), stderr.String(), err
}
return stdout.String(), stderr.String(), nil
}
type RunOptions struct {
Network string
Remove bool
TTY bool
Command string
}
func (c CLI) Run(image string, options RunOptions) (string, string, error) {
execution := pexec.Execution{
Args: []string{"run"},
}
if options.Network != "" {
execution.Args = append(execution.Args, "--network", options.Network)
}
if options.Remove {
execution.Args = append(execution.Args, "--rm")
}
if options.TTY {
execution.Args = append(execution.Args, "--tty")
}
execution.Args = append(execution.Args, image)
if options.Command != "" {
execution.Args = append(execution.Args, "bash", "-c", options.Command)
}
stdout := bytes.NewBuffer(nil)
execution.Stdout = stdout
stderr := bytes.NewBuffer(nil)
execution.Stderr = stderr
err := c.executable.Execute(execution)
if err != nil {
return stdout.String(), stderr.String(), err
}
return stdout.String(), stderr.String(), nil
}
type RemoveImageOptions struct {
Force bool
}
func (c CLI) RemoveImage(image string, options RemoveImageOptions) (string, string, error) {
execution := pexec.Execution{
Args: []string{"image", "rm"},
}
if options.Force {
execution.Args = append(execution.Args, "--force")
}
execution.Args = append(execution.Args, image)
stdout := bytes.NewBuffer(nil)
execution.Stdout = stdout
stderr := bytes.NewBuffer(nil)
execution.Stderr = stderr
err := c.executable.Execute(execution)
if err != nil {
return stdout.String(), stderr.String(), err
}
return stdout.String(), stderr.String(), nil
}