databricks-cli/cmd/bundle/init.go

95 lines
2.7 KiB
Go

package bundle
import (
"errors"
"os"
"path/filepath"
"strings"
"github.com/databricks/cli/cmd/root"
"github.com/databricks/cli/libs/cmdio"
"github.com/databricks/cli/libs/git"
"github.com/databricks/cli/libs/template"
"github.com/spf13/cobra"
)
var gitUrlPrefixes = []string{
"https://",
"git@",
}
func isRepoUrl(url string) bool {
result := false
for _, prefix := range gitUrlPrefixes {
if strings.HasPrefix(url, prefix) {
result = true
break
}
}
return result
}
// Computes the repo name from the repo URL. Treats the last non empty word
// when splitting at '/' as the repo name. For example: for url git@github.com:databricks/cli.git
// the name would be "cli.git"
func repoName(url string) string {
parts := strings.Split(strings.TrimRight(url, "/"), "/")
return parts[len(parts)-1]
}
func newInitCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "init [TEMPLATE_PATH]",
Short: "Initialize Template",
Args: cobra.MaximumNArgs(1),
}
var configFile string
var outputDir string
var templateDir string
cmd.Flags().StringVar(&configFile, "config-file", "", "File containing input parameters for template initialization.")
cmd.Flags().StringVar(&templateDir, "template-dir", "", "Directory within repository that holds the template specification.")
cmd.Flags().StringVar(&outputDir, "output-dir", "", "Directory to write the initialized template to.")
cmd.PreRunE = root.MustWorkspaceClient
cmd.RunE = func(cmd *cobra.Command, args []string) error {
ctx := cmd.Context()
var templatePath string
if len(args) > 0 {
templatePath = args[0]
} else {
var err error
if !cmdio.IsOutTTY(ctx) || !cmdio.IsInTTY(ctx) {
return errors.New("please specify a template")
}
templatePath, err = cmdio.Ask(ctx, "Template to use", "default-python")
if err != nil {
return err
}
}
if !isRepoUrl(templatePath) {
// skip downloading the repo because input arg is not a URL. We assume
// it's a path on the local file system in that case
return template.Materialize(ctx, configFile, templatePath, outputDir)
}
// Create a temporary directory with the name of the repository. The '*'
// character is replaced by a random string in the generated temporary directory.
repoDir, err := os.MkdirTemp("", repoName(templatePath)+"-*")
if err != nil {
return err
}
// TODO: Add automated test that the downloaded git repo is cleaned up.
// Clone the repository in the temporary directory
err = git.Clone(ctx, templatePath, "", repoDir)
if err != nil {
return err
}
// Clean up downloaded repository once the template is materialized.
defer os.RemoveAll(repoDir)
return template.Materialize(ctx, configFile, filepath.Join(repoDir, templateDir), outputDir)
}
return cmd
}