Add checks for used commands to the actions that need it

actions/debootstrap_action.go

@@ -109,6 +109,12 @@ func (d *DebootstrapAction) listOptionFiles(context *debos.DebosContext) []strin
 }
 
 func (d *DebootstrapAction) Verify(context *debos.DebosContext) error {
+	// Check that debootstrap is available
+	cmd := debos.Command{}
+	if err := cmd.CheckExists("Debootstrap", "debootstrap", "--version"); err != nil {
+		return err
+	}
+
 	files := d.listOptionFiles(context)
 
 	// Check if all needed files exists

actions/filesystem_deploy_action.go

@@ -54,6 +54,14 @@ func NewFilesystemDeployAction() *FilesystemDeployAction {
 	return fd
 }
 
+func (fd *FilesystemDeployAction) Verify(context *debos.DebosContext) error {
+	cmd := debos.Command{}
+	if err := cmd.CheckExists("Cp", "cp", "--help"); err != nil {
+		return err
+	}
+	return nil
+}
+
 func (fd *FilesystemDeployAction) setupFSTab(context *debos.DebosContext) error {
 	if context.ImageFSTab.Len() == 0 {
 		return errors.New("Fstab not generated, missing image-partition action?")

actions/image_partition_action.go

@@ -585,6 +585,17 @@ func (i ImagePartitionAction) PostMachineCleanup(context *debos.DebosContext) er
 }
 
 func (i *ImagePartitionAction) Verify(context *debos.DebosContext) error {
+	commands := []string{
+		"blkid", "mkfs.btrfs", "mkfs.ext2", "mkfs.ext3", "mkfs.ext4", "mkfs.f2fs",
+		"mkfs.hfs", "mkfs.hfsplus", "mkfs.vfat", "mkfs.xfs", "parted", "sfdisk", "udevadm" }
+
+	cmd := debos.Command{}
+	for _, c := range commands {
+		if err := cmd.CheckExists(strings.Title(c), c, "--help"); err != nil {
+			return err
+		}
+	}
+
 	if len(i.GptGap) > 0 {
 		log.Println("WARNING: special version of parted is needed for 'gpt_gap' option")
 		if i.PartitionType != "gpt" {

actions/ostree_deploy_action.go

@@ -81,6 +81,14 @@ func NewOstreeDeployAction() *OstreeDeployAction {
 	return ot
 }
 
+func (ot *OstreeDeployAction) Verify(context *debos.DebosContext) error {
+	cmd := debos.Command{}
+	if err := cmd.CheckExists("Cp", "cp", "--help"); err != nil {
+		return err
+	}
+	return nil
+}
+
 func (ot *OstreeDeployAction) setupFSTab(deployment *ostree.Deployment, context *debos.DebosContext) error {
 	deploymentDir := fmt.Sprintf("ostree/deploy/%s/deploy/%s.%d",
 		deployment.Osname(), deployment.Csum(), deployment.Deployserial())

actions/pack_action.go

@@ -52,6 +52,11 @@ func NewPackAction() *PackAction {
 }
 
 func (pf *PackAction) Verify(context *debos.DebosContext) error {
+	cmd := debos.Command{}
+	if err := cmd.CheckExists("Tar", "tar", "--help"); err != nil {
+		return err
+	}
+
 	_, compressionAvailable := tarOpts[pf.Compression]
 	if compressionAvailable {
 		return nil