Vendor Buildah v1.7

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

Vendors in Buildah 1.7 into Podman.
Also the latest imagebuilder and changes for
`build --target`

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

vendor/github.com/openshift/imagebuilder/README.md

@@ -70,7 +70,7 @@ is ignored.
 
 ## Code Example
 
-```
+```go
 f, err := os.Open("path/to/Dockerfile")
 if err != nil {
 	return err

vendor/github.com/openshift/imagebuilder/builder.go

@@ -40,6 +40,7 @@ type Run struct {
 
 type Executor interface {
 	Preserve(path string) error
+	EnsureContainerPath(path string) error
 	Copy(excludes []string, copies ...Copy) error
 	Run(run Run, config docker.Config) error
 	UnrecognizedInstruction(step *Step) error
@@ -52,6 +53,11 @@ func (logExecutor) Preserve(path string) error {
 	return nil
 }
 
+func (logExecutor) EnsureContainerPath(path string) error {
+	log.Printf("ENSURE %s", path)
+	return nil
+}
+
 func (logExecutor) Copy(excludes []string, copies ...Copy) error {
 	for _, c := range copies {
 		log.Printf("COPY %v -> %s (from:%s download:%t), chown: %s", c.Src, c.Dest, c.From, c.Download, c.Chown)
@@ -75,6 +81,10 @@ func (noopExecutor) Preserve(path string) error {
 	return nil
 }
 
+func (noopExecutor) EnsureContainerPath(path string) error {
+	return nil
+}
+
 func (noopExecutor) Copy(excludes []string, copies ...Copy) error {
 	return nil
 }
@@ -153,6 +163,7 @@ func (stages Stages) ByName(name string) (Stage, bool) {
 	return Stage{}, false
 }
 
+// Get just the target stage.
 func (stages Stages) ByTarget(target string) (Stages, bool) {
 	if len(target) == 0 {
 		return stages, true
@@ -165,6 +176,19 @@ func (stages Stages) ByTarget(target string) (Stages, bool) {
 	return nil, false
 }
 
+// Get all the stages up to and including the target.
+func (stages Stages) ThroughTarget(target string) (Stages, bool) {
+	if len(target) == 0 {
+		return stages, true
+	}
+	for i, stage := range stages {
+		if stage.Name == target {
+			return stages[0 : i+1], true
+		}
+	}
+	return nil, false
+}
+
 type Stage struct {
 	Position int
 	Name     string
@@ -319,6 +343,13 @@ func (b *Builder) Run(step *Step, exec Executor, noRunsRemaining bool) error {
 	if err := exec.Copy(b.Excludes, copies...); err != nil {
 		return err
 	}
+
+	if len(b.RunConfig.WorkingDir) > 0 {
+		if err := exec.EnsureContainerPath(b.RunConfig.WorkingDir); err != nil {
+			return err
+		}
+	}
+
 	for _, run := range runs {
 		config := b.Config()
 		config.Env = step.Env

vendor/github.com/openshift/imagebuilder/dispatchers.go

@@ -128,9 +128,20 @@ func add(b *Builder, args []string, attributes map[string]bool, flagArgs []strin
 	if len(args) < 2 {
 		return errAtLeastOneArgument("ADD")
 	}
+	var chown string
 	last := len(args) - 1
 	dest := makeAbsolute(args[last], b.RunConfig.WorkingDir)
-	b.PendingCopies = append(b.PendingCopies, Copy{Src: args[0:last], Dest: dest, Download: true})
+	if len(flagArgs) > 0 {
+		for _, arg := range flagArgs {
+			switch {
+			case strings.HasPrefix(arg, "--chown="):
+				chown = strings.TrimPrefix(arg, "--chown=")
+			default:
+				return fmt.Errorf("ADD only supports the --chown=<uid:gid> flag")
+			}
+		}
+	}
+	b.PendingCopies = append(b.PendingCopies, Copy{Src: args[0:last], Dest: dest, Download: true, Chown: chown})
 	return nil
 }