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workspace.go
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workspace.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package create
import (
"context"
"fmt"
"io"
"os"
"strings"
"github.com/spf13/cobra"
"namespacelabs.dev/foundation/internal/cli/fncobra"
"namespacelabs.dev/foundation/internal/console"
"namespacelabs.dev/foundation/internal/console/tui"
"namespacelabs.dev/foundation/internal/fnfs"
"namespacelabs.dev/foundation/internal/frontend/cuefrontend"
"namespacelabs.dev/foundation/internal/git"
)
const (
workspaceFileTemplate = `module: "%s"
`
vscodeExtensionsFilePath = ".vscode/extensions.json"
vscodeExtensionsTemplate = `{
"recommendations": [
"golang.go",
"esbenp.prettier-vscode",
"zxh404.vscode-proto3",
"namespacelabs.namespace-vscode"
]
}`
gitignoreFilePath = ".gitignore"
gitignoreTemplate = `# Namespace configuration of this specific host.
devhost.textpb
# Typescript/Node.js/Yarn
node_modules
**/.yarn/*
!**/.yarn/patches
!**/.yarn/plugins
!**/.yarn/releases
!**/.yarn/sdks
!**/.yarn/versions
`
gitpodFilePath = ".gitpod.yml"
// `ns create starter --dry_run` prints to the terminal in VSCode what we have done for the user.
//
// Use the pinned ns for testing/development, e.g. "image: us-docker.pkg.dev/foundation-344819/prebuilts/namespacelabs.dev/foundation/internal/gitpod/pinned@sha256:<SHA>"
gitpodTemplate = `image: us-docker.pkg.dev/foundation-344819/prebuilts/namespacelabs.dev/foundation/internal/gitpod/nsboot@sha256:b8b169a9c5a8074e26e4f6949ab56b060cfed7af31b5c7f073199ad3cea88c89
tasks:
- name: prepare
before: |
ns login --read_from_env_var=NS_AUTH
init: |
gp env NS_AUTH=` + "`" + `cat ~/.config/fn/auth.json` + "`" + ` &> /dev/null
ns prepare new-cluster
ns create starter --dry_run --suggest_prepare=false
ports:
- name: Namespace Dev UI
port: 4001
onOpen: open-preview
`
)
func newWorkspaceCmd(runCommand func(ctx context.Context, args []string) error) *cobra.Command {
cmd := &cobra.Command{
Use: "workspace [directory]",
Short: "Initializes a workspace.",
}
cmd.RunE = fncobra.RunE(func(ctx context.Context, args []string) error {
cwd, err := os.Getwd()
if err != nil {
return err
}
fsfs := fnfs.ReadWriteLocalFS(cwd)
if err := writeWorkspaceConfig(ctx, fsfs, args); err != nil {
return err
}
if err := writeFileIfDoesntExist(ctx, console.Stdout(ctx), fsfs, vscodeExtensionsFilePath, vscodeExtensionsTemplate); err != nil {
return err
}
if err := updateGitignore(ctx, console.Stdout(ctx), fsfs); err != nil {
return err
}
if isRoot, err := git.IsRepoRoot(ctx, "."); err == nil && isRoot {
if err := writeFileIfDoesntExist(ctx, console.Stdout(ctx), fsfs, gitpodFilePath, gitpodTemplate); err != nil {
return err
}
}
return runCommand(ctx, []string{"tidy"})
})
return cmd
}
func askWorkspaceName(ctx context.Context) (string, error) {
placeholder := "github.com/username/reponame"
if url, err := git.RemoteUrl(ctx, "."); err == nil {
placeholder = url
}
return tui.Ask(ctx,
"Workspace name?",
"The workspace name should to match the Github repository name.",
placeholder)
}
func workspaceNameFromArgs(ctx context.Context, args []string) (string, error) {
if len(args) == 0 {
workspaceName, err := askWorkspaceName(ctx)
if err != nil {
return "", err
}
if workspaceName == "" {
return "", context.Canceled
}
return workspaceName, nil
} else {
return args[0], nil
}
}
func writeWorkspaceConfig(ctx context.Context, fsfs fnfs.ReadWriteFS, args []string) error {
workspaceName, err := workspaceNameFromArgs(ctx, args)
if err != nil {
return err
}
if workspaceName == "" {
return context.Canceled
}
return writeFileIfDoesntExist(ctx, nil, fsfs, cuefrontend.WorkspaceFile, fmt.Sprintf(workspaceFileTemplate, workspaceName))
}
func writeFileIfDoesntExist(ctx context.Context, out io.Writer, fsfs fnfs.ReadWriteFS, fn string, content string) error {
if f, err := fsfs.Open(fn); err == nil {
f.Close()
return nil
}
return fnfs.WriteWorkspaceFile(ctx, out, fsfs, fn, func(w io.Writer) error {
_, err := fmt.Fprint(w, content)
return err
})
}
func updateGitignore(ctx context.Context, out io.Writer, fsfs fnfs.ReadWriteFS) error {
f, err := fsfs.Open(gitignoreFilePath)
if err != nil {
// file does not exist
return fnfs.WriteWorkspaceFile(ctx, out, fsfs, gitignoreFilePath, func(w io.Writer) error {
_, err := fmt.Fprint(w, gitignoreTemplate)
return err
})
}
defer f.Close()
data, err := io.ReadAll(f)
if err != nil {
return err
}
content := string(data)
if strings.Contains(content, "devhost.textpb") {
// Found Namespace bits in .gitignore. Don't touch it.
return nil
}
if strings.Contains(content, "yarn") {
// .gitignore is apparently not generated by us but already has some yarn bits.
// Let's not touch it but just say what we'd recommend.
fmt.Fprintf(console.Stdout(ctx), "Found existing .gitignore file. Consider adding:\n# Namespace .gitignore begin\n%s\n# Namespace .gitignore end\n", gitignoreTemplate)
return nil
}
content = fmt.Sprintf("%s\n%s", content, gitignoreTemplate)
return fnfs.WriteWorkspaceFile(ctx, out, fsfs, gitignoreFilePath, func(w io.Writer) error {
_, err := fmt.Fprint(w, content)
return err
})
}