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