Add Helm support to Python SDK (#544)

CHANGELOG.md

@@ -13,6 +13,7 @@
 ### Improvements
 
 -   Put all resources in specified provider namespace (https://github.com/pulumi/pulumi-kubernetes/pull/538)
+-   Add Helm support to Python SDK (https://github.com/pulumi/pulumi-kubernetes/pull/544)
 
 ### Bug fixes
 

cmd/pulumi-gen-kubernetes/copy.go

@@ -0,0 +1,85 @@
+// Copyright 2016-2019, Pulumi Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path"
+)
+
+// CopyFile copies a single file from src to dst
+// From https://blog.depado.eu/post/copy-files-and-directories-in-go
+func CopyFile(src, dst string) error {
+	var err error
+	var srcfd *os.File
+	var dstfd *os.File
+	var srcinfo os.FileInfo
+
+	if srcfd, err = os.Open(src); err != nil {
+		return err
+	}
+	defer srcfd.Close()
+
+	if dstfd, err = os.Create(dst); err != nil {
+		return err
+	}
+	defer dstfd.Close()
+
+	if _, err = io.Copy(dstfd, srcfd); err != nil {
+		return err
+	}
+	if srcinfo, err = os.Stat(src); err != nil {
+		return err
+	}
+	return os.Chmod(dst, srcinfo.Mode())
+}
+
+// CopyDir copies a whole directory recursively
+// From https://blog.depado.eu/post/copy-files-and-directories-in-go
+func CopyDir(src string, dst string) error {
+	var err error
+	var fds []os.FileInfo
+	var srcinfo os.FileInfo
+
+	if srcinfo, err = os.Stat(src); err != nil {
+		return err
+	}
+
+	if err = os.MkdirAll(dst, srcinfo.Mode()); err != nil {
+		return err
+	}
+
+	if fds, err = ioutil.ReadDir(src); err != nil {
+		return err
+	}
+	for _, fd := range fds {
+		srcfp := path.Join(src, fd.Name())
+		dstfp := path.Join(dst, fd.Name())
+
+		if fd.IsDir() {
+			if err = CopyDir(srcfp, dstfp); err != nil {
+				fmt.Println(err)
+			}
+		} else {
+			if err = CopyFile(srcfp, dstfp); err != nil {
+				fmt.Println(err)
+			}
+		}
+	}
+	return nil
+}

cmd/pulumi-gen-kubernetes/main.go

@@ -20,6 +20,7 @@ import (
 	"io/ioutil"
 	"log"
 	"os"
+	"path/filepath"
 
 	"github.com/pulumi/pulumi-kubernetes/pkg/gen"
 )
@@ -135,56 +136,62 @@ func writeNodeJSClient(data map[string]interface{}, outdir, templateDir string)
 }
 
 func writePythonClient(data map[string]interface{}, outdir, templateDir string) {
+	sdkDir := filepath.Join(outdir, "pulumi_kubernetes")
+
 	err := gen.PythonClient(data, templateDir,
 		func(initPy string) error {
-			return ioutil.WriteFile(
-				fmt.Sprintf("%s/pulumi_kubernetes/__init__.py", outdir), []byte(initPy), 0777)
+			return ioutil.WriteFile(filepath.Join(sdkDir, "__init__.py"), []byte(initPy), 0777)
 		},
 		func(group, initPy string) error {
-			path := fmt.Sprintf("%s/pulumi_kubernetes/%s", outdir, group)
+			destDir := filepath.Join(sdkDir, group)
 
-			err := os.MkdirAll(path, 0700)
+			err := os.MkdirAll(destDir, 0700)
 			if err != nil {
 				return err
 			}
 
-			return ioutil.WriteFile(fmt.Sprintf("%s/__init__.py", path), []byte(initPy), 0777)
+			return ioutil.WriteFile(filepath.Join(destDir, "__init__.py"), []byte(initPy), 0777)
 		},
 		func(crBytes string) error {
-			path := fmt.Sprintf("%s/pulumi_kubernetes/apiextensions", outdir)
+			destDir := filepath.Join(sdkDir, "apiextensions")
 
-			err := os.MkdirAll(path, 0700)
+			err := os.MkdirAll(destDir, 0700)
 			if err != nil {
 				return err
 			}
 
 			return ioutil.WriteFile(
-				fmt.Sprintf("%s/pulumi_kubernetes/apiextensions/CustomResource.py", outdir),
+				filepath.Join(destDir, "CustomResource.py"),
 				[]byte(crBytes), 0777)
 		},
 		func(group, version, initPy string) error {
-			path := fmt.Sprintf("%s/pulumi_kubernetes/%s/%s", outdir, group, version)
+			destDir := filepath.Join(sdkDir, group, version)
 
-			err := os.MkdirAll(path, 0700)
+			err := os.MkdirAll(destDir, 0700)
 			if err != nil {
 				return err
 			}
 
-			return ioutil.WriteFile(fmt.Sprintf("%s/__init__.py", path), []byte(initPy), 0777)
+			return ioutil.WriteFile(filepath.Join(destDir, "__init__.py"), []byte(initPy), 0777)
 		},
 		func(group, version, kind, kindPy string) error {
-			path := fmt.Sprintf("%s/pulumi_kubernetes/%s/%s/%s.py", outdir, group, version, kind)
-			return ioutil.WriteFile(path, []byte(kindPy), 0777)
+			destDir := filepath.Join(sdkDir, group, version, fmt.Sprintf("%s.py", kind))
+			return ioutil.WriteFile(destDir, []byte(kindPy), 0777)
 		},
 		func(casingPy string) error {
-			return ioutil.WriteFile(
-				fmt.Sprintf("%s/pulumi_kubernetes/tables.py", outdir), []byte(casingPy), 0777)
+			destDir := filepath.Join(sdkDir, "tables.py")
+			return ioutil.WriteFile(destDir, []byte(casingPy), 0777)
 		},
 		func(yamlPy string) error {
-			return ioutil.WriteFile(
-				fmt.Sprintf("%s/pulumi_kubernetes/yaml.py", outdir), []byte(yamlPy), 0777)
+			destDir := filepath.Join(sdkDir, "yaml.py")
+			return ioutil.WriteFile(destDir, []byte(yamlPy), 0777)
 		})
 	if err != nil {
 		panic(err)
 	}
+
+	err = CopyDir(filepath.Join(templateDir, "helm"), filepath.Join(sdkDir, "helm"))
+	if err != nil {
+		panic(err)
+	}
 }

pkg/gen/python-templates/helm/__init__.py

@@ -0,0 +1,8 @@
+# coding=utf-8
+# *** WARNING: this file was generated by the Pulumi Kubernetes codegen tool. ***
+# *** Do not edit by hand unless you're certain you know what you are doing! ***
+
+# Make subpackages available:
+__all__ = [
+    "v2",
+]

pkg/gen/python-templates/helm/v2/__init__.py

@@ -0,0 +1,6 @@
+# coding=utf-8
+# *** WARNING: this file was generated by the Pulumi Kubernetes codegen tool. ***
+# *** Do not edit by hand unless you're certain you know what you are doing! ***
+
+# Export this package's modules as members:
+from .helm import *