add a test for auto migrations cli interface

License: MIT
Signed-off-by: Jeromy <why@ipfs.io>

cmd/ipfs/daemon.go

@@ -225,6 +225,7 @@ func daemonFunc(req cmds.Request, res cmds.Response) {
 		return
 	case fsrepo.ErrNeedMigration:
 		domigrate, found, _ := req.Option(migrateKwd).Bool()
+		fmt.Println("Found old repo version, migrations need to be run.")
 
 		if !found {
 			err = migrate.TryMigrating(fsrepo.RepoVersion)

repo/fsrepo/migrations/mfsr.go

@@ -61,7 +61,7 @@ func (v VersionFileNotFound) Error() string {
 }
 
 func TryMigrating(tovers int) error {
-	if !YesNoPrompt("run migrations automatically? [y/n]") {
+	if !YesNoPrompt("Run migrations automatically? [y/N]") {
 		return fmt.Errorf("please run the migrations manually")
 	}
 
@@ -70,15 +70,19 @@ func TryMigrating(tovers int) error {
 
 func YesNoPrompt(prompt string) bool {
 	var s string
-	for {
+	for i := 0; i < 3; i++ {
 		fmt.Printf("%s ", prompt)
 		fmt.Scanf("%s", &s)
 		switch s {
 		case "y", "Y":
 			return true
 		case "n", "N":
 			return false
+		case "":
+			return false
 		}
 		fmt.Println("Please press either 'y' or 'n'")
 	}
+
+	return false
 }

repo/fsrepo/migrations/migrations.go

@@ -27,7 +27,9 @@ const migrations = "fs-repo-migrations"
 func RunMigration(newv int) error {
 	migrateBin := "fs-repo-migrations"
 	fmt.Println("  => checking for migrations binary...")
-	_, err := exec.LookPath(migrateBin)
+
+	var err error
+	migrateBin, err = exec.LookPath(migrateBin)
 	if err == nil {
 		// check to make sure migrations binary supports our target version
 		err = verifyMigrationSupportsVersion(migrateBin, newv)

test/sharness/t0066-migration.sh

@@ -0,0 +1,52 @@
+#!/bin/sh
+#
+# Copyright (c) 2016 Jeromy Johnson
+# MIT Licensed; see the LICENSE file in this repository.
+#
+
+test_description="Test migrations auto update prompt"
+
+. lib/test-lib.sh
+
+test_init_ipfs
+
+test_expect_success "setup mock migrations" '
+	mkdir bin &&
+	echo "#!/bin/bash" > bin/fs-repo-migrations &&
+	echo "echo 4" >> bin/fs-repo-migrations &&
+	chmod +x bin/fs-repo-migrations &&
+	export PATH="$(pwd)/bin":$PATH
+'
+
+test_expect_success "manually reset repo version to 3" '
+	echo "3" > "$IPFS_PATH"/version
+'
+
+test_expect_success "ipfs daemon --migrate=false fails" '
+	test_expect_code 1 ipfs daemon --migrate=false 2> false_out
+'
+
+test_expect_success "output looks good" '
+	grep "ipfs repo needs migration" false_out
+'
+
+test_expect_success "ipfs daemon --migrate=true runs migration" '
+	test_expect_code 1 ipfs daemon --migrate=true > true_out
+'
+
+test_expect_success "output looks good" '
+	grep "running migration" true_out > /dev/null &&
+	grep "binary completed successfully" true_out > /dev/null
+'
+
+test_expect_success "'ipfs daemon' prompts to auto migrate" '
+	test_expect_code 1 ipfs daemon > daemon_out 2> daemon_err
+'
+
+test_expect_success "output looks good" '
+	grep "Found old repo version" daemon_out > /dev/null &&
+	grep "Run migrations automatically?" daemon_out > /dev/null &&
+	grep "please run the migrations manually" daemon_err > /dev/null
+'
+
+test_done