podmanV2: implement build

Implement `podman build` for the local client.  The remote client will
require some rather large work in the backend and a new build endpoint
for the libpod rest API.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/cmd/podman/utils/utils.go b/cmd/podman/utils/utils.go
new file mode 100644
index 000000000..c7d105ba4
--- /dev/null
+++ b/cmd/podman/utils/utils.go
@@ -0,0 +1,22 @@
+package utils
+
+import "os"
+
+// IsDir returns true if the specified path refers to a directory.
+func IsDir(path string) bool {
+	file, err := os.Stat(path)
+	if err != nil {
+		return false
+	}
+	return file.IsDir()
+}
+
+// FileExists returns true if path refers to an existing file.
+func FileExists(path string) bool {
+	file, err := os.Stat(path)
+	// All errors return file == nil
+	if err != nil {
+		return false
+	}
+	return !file.IsDir()
+}