add src repos delete command (sourcegraph#25)

Author: ggilmore

Gopkg.lock

@@ -40,3 +40,11 @@
 [[constraint]]
   branch = "master"
   name = "github.com/dustin/go-humanize"
+
+[[constraint]]
+  name = "github.com/hashicorp/go-multierror"
+  version = "1.0.0"
+
+[[constraint]]
+  name = "github.com/pkg/errors"
+  version = "0.8.0"

Gopkg.toml

@@ -19,6 +19,7 @@ The commands are:
 	list       lists repositories
 	enable     enables repositories
 	disable    disables repositories
+	delete 	   deletes repositories
 
 Use "src repos [command] -h" for more information about a command.
 `

cmd/src/repos.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+
+	multierror "github.com/hashicorp/go-multierror"
+	"github.com/pkg/errors"
+)
+
+func init() {
+	flagSet := flag.NewFlagSet("delete", flag.ExitOnError)
+	apiFlags := newAPIFlags(flagSet)
+
+	printUsage := func() {
+		fmt.Fprintf(flag.CommandLine.Output(), "Usage of 'src repos %s'\n", flagSet.Name())
+
+		flagSet.PrintDefaults()
+
+		examples := `
+Examples:
+
+   Delete one or more repositories:
+
+    	$ src repos delete github.com/my/repo github.com/my/repo2
+`
+		fmt.Fprint(flag.CommandLine.Output(), examples)
+	}
+
+	deleteRepository := func(repoName string) error {
+		repoID, err := fetchRepositoryID(repoName)
+		if err != nil {
+			return err
+		}
+
+		query := `mutation DeleteRepository($repoID: ID!){
+			deleteRepository(repository: $repoID) {
+				alwaysNil
+			}
+		}`
+		var result struct{}
+		return (&apiRequest{
+			query: query,
+			vars: map[string]interface{}{
+				"repoID": repoID,
+			},
+			result: &result,
+			done: func() error {
+				fmt.Fprintf(flag.CommandLine.Output(), "Repository %q deleted\n", repoName)
+				return nil
+			},
+			flags: apiFlags,
+		}).do()
+	}
+
+	deleteRepositories := func(args []string) error {
+		flagSet.Parse(args)
+		var errs *multierror.Error
+		for _, repoName := range flagSet.Args() {
+			err := deleteRepository(repoName)
+			if err != nil {
+				err = errors.Wrapf(err, "Failed to delete repository %q", repoName)
+				errs = multierror.Append(errs, err)
+			}
+		}
+		return errs.ErrorOrNil()
+	}
+
+	// Register the command.
+	reposCommands = append(reposCommands, &command{
+		flagSet:   flagSet,
+		handler:   deleteRepositories,
+		usageFunc: printUsage,
+	})
+}

cmd/src/repos_delete.go

@@ -1,10 +1,11 @@
 package main
 
 import (
-	"errors"
 	"flag"
 	"fmt"
-	"log"
+
+	multierror "github.com/hashicorp/go-multierror"
+	"github.com/pkg/errors"
 )
 
 func init() {
@@ -67,17 +68,14 @@ func initReposEnableDisable(cmdName string, enable bool, usage string) {
 	handler := func(args []string) error {
 		flagSet.Parse(args)
 
-		errs := false
+		var errs *multierror.Error
 		for _, repoName := range flagSet.Args() {
 			if err := setRepositoryEnabled(repoName, enable); err != nil {
-				errs = true
-				log.Println(err)
+				err = errors.Wrapf(err, "Failed to %s repository %q", cmdName, repoName)
+				errs = multierror.Append(errs, err)
 			}
 		}
-		if errs {
-			return errors.New("(errors occurred)")
-		}
-		return nil
+		return errs.ErrorOrNil()
 	}
 
 	// Register the command.