databricks-cli/project/flavor.go

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2022-05-14 18:56:02 +00:00
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{}
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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
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// 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
}