Add basic flavor skeleton

project/flavor.go

@@ -0,0 +1,87 @@
+package project
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+)
+
+type Flavor interface {
+	// Name returns a tuple of flavor key and readable name
+	Name() (string, string)
+
+	// Detected returns true on successful metadata checks
+	Detected() bool
+
+	// Build triggers packaging subprocesses
+	Build(context.Context) error
+	// TODO: Init() Questions
+	// TODO: Deploy(context.Context) error
+}
+
+var _ Flavor = PythonWheel{}
+
+type PythonWheel struct{}
+
+func (pw PythonWheel) Name() (string, string) {
+	return "wheel", "Python Wheel"
+}
+
+func (pw PythonWheel) Detected() bool {
+	root, err := findProjectRoot()
+	if err != nil {
+		return false
+	}
+	_, err = os.Stat(fmt.Sprintf("%s/setup.py", root))
+	return err == nil
+}
+
+func (pw PythonWheel) Build(ctx context.Context) error {
+	defer toTheRootAndBack()()
+	// do subprocesses or https://github.com/go-python/cpy3
+	// it all depends on complexity and binary size
+	// TODO: detect if there's an .venv here and call setup.py with ENV vars of it
+	// TODO: where.exe python (WIN) / which python (UNIX)
+	cmd := exec.CommandContext(ctx, "python", "setup.py", "bdist-wheel")
+	err := cmd.Run()
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func toTheRootAndBack() func() {
+	wd, _ := os.Getwd()
+	root, _ := findProjectRoot()
+	os.Chdir(root)
+	return func() {
+		os.Chdir(wd)
+	}
+}
+
+var _ Flavor = PythonNotebooks{}
+type PythonNotebooks struct{}
+
+func (n PythonNotebooks) Name() (string, string) {
+	// or just "notebooks", as we might shuffle in scala?...
+	return "python-notebooks", "Python Notebooks"
+}
+
+func (n PythonNotebooks) Detected() bool {
+	// TODO: Steps:
+	// - get all filenames
+	// - read first X bytes from random 10 files and check 
+	// if they're "Databricks Notebook Source"
+	return false
+}
+
+func (n PythonNotebooks) Build(ctx context.Context) error {
+	// TODO: perhaps some linting?..
+	return nil
+}
+
+func (n PythonNotebooks) Deploy(ctx context.Context) error {
+	// TODO: recursively upload notebooks to a given workspace path
+	return nil
+}