Fix script that creates a new version to make it work on osx

hack/new_config_version/version.go

@@ -17,12 +17,123 @@ limitations under the License.
 package main
 
 import (
-	"fmt"
+	"bufio"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"regexp"
 	"strings"
 
-	"github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest"
+	"github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema"
 )
 
+// Before: prev -> current (latest)
+// After:  prev -> current -> new (latest)
 func main() {
-	fmt.Println(strings.TrimPrefix(latest.Version, "skaffold/"))
+	new := os.Args[1]
+	current := strings.TrimPrefix(schema.SchemaVersions[len(schema.SchemaVersions)-1].APIVersion, "skaffold/")
+	prev := strings.TrimPrefix(schema.SchemaVersions[len(schema.SchemaVersions)-2].APIVersion, "skaffold/")
+
+	// Create a package for current version
+	walk(path("latest"), func(file string, info os.FileInfo) {
+		if !info.IsDir() {
+			cp(file, path(current, info.Name()))
+			sed(path(current, info.Name()), "package latest", "package "+current)
+		}
+	})
+
+	// Create code to upgrade from current to new
+	cp(path(prev, "upgrade.go"), path(current, "upgrade.go"))
+	sed(path(current, "upgrade.go"), current, new)
+	sed(path(current, "upgrade.go"), prev, current)
+
+	// Create a test for the upgrade from current to new
+	cp(path(prev, "upgrade_test.go"), path(current, "upgrade_test.go"))
+	sed(path(current, "upgrade_test.go"), current, new)
+	sed(path(current, "upgrade_test.go"), prev, current)
+
+	// Previous version now upgrades to current instead of latest
+	sed(path(prev, "upgrade.go"), "latest", current)
+	sed(path(prev, "upgrade_test.go"), "latest", current)
+
+	// Latest uses the new version
+	sed(path("latest", "config.go"), current, new)
+
+	// Update skaffold.yaml in integration tests
+	walk("integration", func(path string, info os.FileInfo) {
+		if info.Name() == "skaffold.yaml" {
+			sed(path, current, new)
+		}
+	})
+
+	// Add the new version to the list of versions
+	lines := lines(path("versions.go"))
+	var content string
+	for _, line := range lines {
+		content += line + "\n"
+		if strings.Contains(line, prev) {
+			content += strings.ReplaceAll(line, prev, current) + "\n"
+		}
+	}
+	write(path("versions.go"), []byte(content))
+
+	// Update the docs with the new version
+	sed("docs/config.toml", current, new)
+}
+
+func path(elem ...string) string {
+	return filepath.Join(append([]string{"pkg", "skaffold", "schema"}, elem...)...)
+}
+
+func read(path string) []byte {
+	buf, err := ioutil.ReadFile(path)
+	if err != nil {
+		panic("unable to read " + path)
+	}
+	return buf
+}
+
+func write(path string, buf []byte) {
+	if err := ioutil.WriteFile(path, buf, os.ModePerm); err != nil {
+		panic("unable to write " + path)
+	}
+}
+
+func sed(path string, old, new string) {
+	buf := read(path)
+	replaced := regexp.MustCompile(old).ReplaceAll(buf, []byte(new))
+	write(path, replaced)
+}
+
+func cp(path string, dest string) {
+	buf := read(path)
+	os.Mkdir(filepath.Dir(dest), os.ModePerm)
+	write(dest, buf)
+}
+
+func lines(path string) []string {
+	file, err := os.Open(path)
+	if err != nil {
+		panic("unable to open " + path)
+	}
+	defer file.Close()
+
+	var lines []string
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		lines = append(lines, scanner.Text())
+	}
+	return lines
+}
+
+func walk(root string, fn func(path string, info os.FileInfo)) {
+	if err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		fn(path, info)
+		return nil
+	}); err != nil {
+		panic("unable to list files")
+	}
 }

hack/new_version.sh

@@ -14,50 +14,21 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-CURRENT_VERSION=`go run hack/new_config_version/version.go`
-echo "Current config version: $CURRENT_VERSION"
-
 echo "Please enter new config version:"
 read NEW_VERSION
 
-echo "Please enter previous config version:"
-read PREV_VERSION
-
-echo "Generating changes for new config version $NEW_VERSION..."
-
-sed -i docs/config.toml -e "s;$CURRENT_VERSION;$NEW_VERSION;g"
-
-cp -R pkg/skaffold/schema/latest pkg/skaffold/schema/${CURRENT_VERSION}
-
-sed -i pkg/skaffold/schema/${CURRENT_VERSION}/*.go -e "s;package latest;package $CURRENT_VERSION;g"
-
-sed pkg/skaffold/schema/${PREV_VERSION}/upgrade_test.go -e "s;$CURRENT_VERSION;$NEW_VERSION;g" > pkg/skaffold/schema/${CURRENT_VERSION}/upgrade_test.go
-sed -i pkg/skaffold/schema/${CURRENT_VERSION}/upgrade_test.go -e "s;$PREV_VERSION;$CURRENT_VERSION;g"
-
-sed pkg/skaffold/schema/${PREV_VERSION}/upgrade.go -e "s;$CURRENT_VERSION;$NEW_VERSION;g" > pkg/skaffold/schema/${CURRENT_VERSION}/upgrade.go
-sed -i pkg/skaffold/schema/${CURRENT_VERSION}/upgrade.go -e "s;$PREV_VERSION;$CURRENT_VERSION;g"
-
-sed -i pkg/skaffold/schema/${PREV_VERSION}/upgrade*.go -e "s;latest;$CURRENT_VERSION;g"
-goimports -w pkg/skaffold/schema/${PREV_VERSION}/upgrade*.go
-
-sed -i pkg/skaffold/schema/latest/config.go -e "s;$CURRENT_VERSION;$NEW_VERSION;g"
-
-find integration -name "skaffold.yaml" -print0 | xargs -0 -I xx sed -i xx -e "s;$CURRENT_VERSION;$NEW_VERSION;g"
-
-sed pkg/skaffold/schema/versions.go -i -e "s;\(.*\)$PREV_VERSION.Version\(.*\)$PREV_VERSION\(.*\);&\n\1$CURRENT_VERSION.Version\2$CURRENT_VERSION\3;g"
-sed pkg/skaffold/schema/versions.go -i -e "s;\(.*\)/$PREV_VERSION\(.*\);&\n\1/$CURRENT_VERSION\2;g"
+go run ./hack/new_config_version/version.go ${NEW_VERSION}
 
+goimports -w ./pkg/skaffold/schema
 make generate-schemas
-
 git --no-pager diff --minimal
-
 make test
 
 echo
 echo "---------------------------------------"
 echo
-echo "Files generated for $NEW_VERSION. Don't worry about the hack/check-docs change failure, it is expected!"
-echo "Other tests should have passed. For the docs change, commit the results and rerun 'make test'."
+echo "Files generated for $NEW_VERSION."
+echo "All tests should have passed. For the docs change, commit the results and rerun 'make test'."
 echo "Please double check manually the generated files as well: the upgrade functionality, and all the examples:"
 echo
 git status -s

pkg/skaffold/schema/util/util.go

@@ -22,7 +22,7 @@ import (
 	"strings"
 
 	yamlpatch "github.com/krishicks/yaml-patch"
-	"gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v2"
 )
 
 type VersionedConfig interface {

pkg/skaffold/schema/v1beta10/upgrade_test.go

@@ -21,7 +21,7 @@ import (
 
 	next "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/v1beta11"
 	"github.com/GoogleContainerTools/skaffold/testutil"
-	"gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v2"
 )
 
 func TestUpgrade(t *testing.T) {

pkg/skaffold/schema/v1beta11/upgrade_test.go

@@ -21,7 +21,7 @@ import (
 
 	next "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest"
 	"github.com/GoogleContainerTools/skaffold/testutil"
-	"gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v2"
 )
 
 func TestUpgrade(t *testing.T) {

pkg/skaffold/schema/v1beta9/upgrade_test.go

@@ -21,7 +21,7 @@ import (
 
 	next "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/v1beta10"
 	"github.com/GoogleContainerTools/skaffold/testutil"
-	"gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v2"
 )
 
 func TestUpgrade(t *testing.T) {

pkg/skaffold/schema/versions.go

@@ -41,7 +41,7 @@ import (
 	misc "github.com/GoogleContainerTools/skaffold/pkg/skaffold/util"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
-	"gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v2"
 )
 
 type APIVersion struct {