support deploying from source (#397)

* support deploying from source

* bump go version

.github/workflows/tests.yml

@@ -21,10 +21,10 @@ jobs:
           --health-timeout 5s
           --health-retries 5
     steps:
-      - name: Set up Go 1.15
+      - name: Set up Go 1.17
         uses: actions/setup-go@v1
         with:
-          go-version: 1.15
+          go-version: 1.17
         id: go
 
       - name: Check out code into the Go module directory

function/handler/google.go

@@ -8,6 +8,7 @@ import (
 	"io/ioutil"
 	"math/rand"
 	"net/http"
+	"os"
 	"os/exec"
 	"path/filepath"
 	"strings"
@@ -62,6 +63,26 @@ var (
 
 	// hardcoded list of supported regions
 	GoogleRegions = []string{"europe-west1", "us-central1", "us-east1", "us-west1", "asia-east1"}
+
+	SourceFile = map[string]string{
+		"nodejs16": "index.js",
+		"nodejs14": "index.js",
+		"nodejs12": "index.js",
+		"nodejs10": "index.js",
+		"nodejs8":  "index.js",
+		"nodejs6":  "index.js",
+		"python39": "main.py",
+		"python38": "main.py",
+		"python37": "main.py",
+		"go116":    "main.go",
+		"go113":    "main.go",
+		"go111":    "main.go",
+		"java11":   "main.java",
+		"dotnet3":  "main.cs",
+		"ruby27":   "app.rb",
+		"ruby26":   "app.rb",
+		"php74":    "index.php",
+	}
 )
 
 var (
@@ -176,9 +197,10 @@ func (e *GoogleFunction) Deploy(ctx context.Context, req *function.DeployRequest
 		return errors.BadRequest("function.deploy", "Missing name")
 	}
 
-	if len(req.Repo) == 0 {
+	if len(req.Repo) == 0 && len(req.Source) == 0 {
-		return errors.BadRequest("function.deploy", "Missing repo")
+		return errors.BadRequest("function.deploy", "Missing source or repo")
 	}
+
 	if len(req.Runtime) == 0 {
 		return errors.BadRequest("function.deploy", "invalid runtime")
 	}
@@ -220,6 +242,26 @@ func (e *GoogleFunction) Deploy(ctx context.Context, req *function.DeployRequest
 		req.Branch = "master"
 	}
 
+	// check format of the name
+	if !NameFormat.MatchString(req.Name) {
+		return errors.BadRequest("function.deploy", "Invalid name")
+	}
+
+	var sourceDir string
+
+	// if we have source then write the file
+	if len(req.Source) > 0 {
+		dir, err := ioutil.TempDir(".", req.Name)
+		if err != nil {
+			return errors.InternalServerError("function.deploy", "Failed to create source dir")
+		}
+		if err := os.WriteFile(filepath.Join(dir, SourceFile[req.Runtime]), []byte(req.Source), 0644); err != nil {
+			return errors.InternalServerError("function.deploy", "Failed to save source")
+		}
+		// set the source dir
+		sourceDir = dir
+	} else {
+		// checkout from github
 		gitter := git.NewGitter(map[string]string{})
 
 		var err error
@@ -228,6 +270,8 @@ func (e *GoogleFunction) Deploy(ctx context.Context, req *function.DeployRequest
 		if err != nil {
 			return errors.InternalServerError("function.deploy", err.Error())
 		}
+		sourceDir = filepath.Join(gitter.RepoDir(), req.Subfolder)
+	}
 
 	tenantId, ok := tenant.FromContext(ctx)
 	if !ok {
@@ -292,6 +336,7 @@ func (e *GoogleFunction) Deploy(ctx context.Context, req *function.DeployRequest
 	fn := &function.Func{
 		Id:         id,
 		Name:       req.Name,
+		Source:     req.Source,
 		Repo:       req.Repo,
 		Subfolder:  req.Subfolder,
 		Entrypoint: req.Entrypoint,
@@ -325,6 +370,11 @@ func (e *GoogleFunction) Deploy(ctx context.Context, req *function.DeployRequest
 	rsp.Function = fn
 
 	go func(fn *function.Func) {
+		// delete the source code once done
+		defer func() {
+			os.RemoveAll(sourceDir)
+		}()
+
 		// https://jsoverson.medium.com/how-to-deploy-node-js-functions-to-google-cloud-8bba05e9c10a
 		cmd := exec.Command("gcloud", "functions", "deploy", fn.Id, "--quiet",
 			"--region", fn.Region, "--service-account", e.identity,
@@ -336,7 +386,7 @@ func (e *GoogleFunction) Deploy(ctx context.Context, req *function.DeployRequest
 			cmd.Args = append(cmd.Args, "--set-env-vars", strings.Join(envVars, ","))
 		}
 
-		cmd.Dir = filepath.Join(gitter.RepoDir(), fn.Subfolder)
+		cmd.Dir = sourceDir
 		outp, err := cmd.CombinedOutput()
 		if err != nil {
 			log.Error(fmt.Errorf(string(outp)))
@@ -443,10 +493,30 @@ func (e *GoogleFunction) Update(ctx context.Context, req *function.UpdateRequest
 		fn.Branch = "master"
 	}
 
+	var sourceDir string
+
+	// if we have source then write the file
+	if len(req.Source) > 0 {
+		dir, err := ioutil.TempDir(".", fn.Name)
+		if err != nil {
+			return errors.InternalServerError("function.update", "Failed to create source dir")
+		}
+		if err := os.WriteFile(filepath.Join(dir, SourceFile[fn.Runtime]), []byte(req.Source), 0644); err != nil {
+			return errors.InternalServerError("function.update", "Failed to save source")
+		}
+		// set the source dir
+		sourceDir = dir
+		// set the source code
+		fn.Source = req.Source
+	} else {
+		// checkout from github
 		gitter := git.NewGitter(map[string]string{})
 		if err := gitter.Checkout(fn.Repo, fn.Branch); err != nil {
 			return errors.InternalServerError("function.update", err.Error())
 		}
+		// set the source dir
+		sourceDir = filepath.Join(gitter.RepoDir(), fn.Subfolder)
+	}
 
 	// process the env vars to the required format
 	var envVars []string
@@ -458,6 +528,11 @@ func (e *GoogleFunction) Update(ctx context.Context, req *function.UpdateRequest
 	var status string
 
 	go func() {
+		// delete the source code once done
+		defer func() {
+			os.RemoveAll(sourceDir)
+		}()
+
 		// https://jsoverson.medium.com/how-to-deploy-node-js-functions-to-google-cloud-8bba05e9c10a
 		cmd := exec.Command("gcloud", "functions", "deploy", fn.Id, "--quiet",
 			"--region", fn.Region, "--service-account", e.identity,
@@ -469,7 +544,7 @@ func (e *GoogleFunction) Update(ctx context.Context, req *function.UpdateRequest
 			cmd.Args = append(cmd.Args, "--set-env-vars", strings.Join(envVars, ","))
 		}
 
-		cmd.Dir = filepath.Join(gitter.RepoDir(), fn.Subfolder)
+		cmd.Dir = sourceDir
 		outp, err := cmd.CombinedOutput()
 		if err != nil {
 			log.Error(fmt.Errorf(string(outp)))
@@ -523,6 +598,7 @@ func (e *GoogleFunction) Update(ctx context.Context, req *function.UpdateRequest
 			time.Sleep(time.Second)
 		}
 
+		// update the status
 		fn.Status = status
 		fn.Updated = time.Now().Format(time.RFC3339Nano)
 		store.Write(store.NewRecord(key, fn))

function/proto/function.pb.go

@@ -135,24 +135,26 @@ type DeployRequest struct {
 
 	// function name
 	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
-	// github url to repo
+	// inline source code
-	Repo string `protobuf:"bytes,2,opt,name=repo,proto3" json:"repo,omitempty"`
+	Source string `protobuf:"bytes,2,opt,name=source,proto3" json:"source,omitempty"`
+	// github url for a repo
+	Repo string `protobuf:"bytes,3,opt,name=repo,proto3" json:"repo,omitempty"`
 	// branch to deploy. defaults to master
-	Branch string `protobuf:"bytes,3,opt,name=branch,proto3" json:"branch,omitempty"`
+	Branch string `protobuf:"bytes,4,opt,name=branch,proto3" json:"branch,omitempty"`
 	// optional subfolder path
-	Subfolder string `protobuf:"bytes,4,opt,name=subfolder,proto3" json:"subfolder,omitempty"`
+	Subfolder string `protobuf:"bytes,5,opt,name=subfolder,proto3" json:"subfolder,omitempty"`
 	// entry point, ie. handler name in the source code
 	// if not provided, defaults to the name parameter
-	Entrypoint string `protobuf:"bytes,5,opt,name=entrypoint,proto3" json:"entrypoint,omitempty"`
+	Entrypoint string `protobuf:"bytes,6,opt,name=entrypoint,proto3" json:"entrypoint,omitempty"`
 	// runtime/lanaguage of the function e.g php74,
 	// nodejs6, nodejs8, nodejs10, nodejs12, nodejs14, nodejs16,
 	// dotnet3, java11, ruby26, ruby27, go111, go113, go116,
 	// python37, python38, python39
-	Runtime string `protobuf:"bytes,6,opt,name=runtime,proto3" json:"runtime,omitempty"`
+	Runtime string `protobuf:"bytes,7,opt,name=runtime,proto3" json:"runtime,omitempty"`
 	// region to deploy in. defaults to europe-west1
-	Region string `protobuf:"bytes,7,opt,name=region,proto3" json:"region,omitempty"`
+	Region string `protobuf:"bytes,8,opt,name=region,proto3" json:"region,omitempty"`
 	// environment variables to pass in at runtime
-	EnvVars map[string]string `protobuf:"bytes,8,rep,name=env_vars,json=envVars,proto3" json:"env_vars,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	EnvVars map[string]string `protobuf:"bytes,9,rep,name=env_vars,json=envVars,proto3" json:"env_vars,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 }
 
 func (x *DeployRequest) Reset() {
@@ -194,6 +196,13 @@ func (x *DeployRequest) GetName() string {
 	return ""
 }
 
+func (x *DeployRequest) GetSource() string {
+	if x != nil {
+		return x.Source
+	}
+	return ""
+}
+
 func (x *DeployRequest) GetRepo() string {
 	if x != nil {
 		return x.Repo
@@ -339,31 +348,33 @@ type Func struct {
 	// function name
 	// limitation: must be unique across projects
 	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	// the source code
+	Source string `protobuf:"bytes,3,opt,name=source,proto3" json:"source,omitempty"`
 	// git repo address
-	Repo string `protobuf:"bytes,3,opt,name=repo,proto3" json:"repo,omitempty"`
+	Repo string `protobuf:"bytes,4,opt,name=repo,proto3" json:"repo,omitempty"`
 	// branch to deploy. defaults to master
-	Branch string `protobuf:"bytes,4,opt,name=branch,proto3" json:"branch,omitempty"`
+	Branch string `protobuf:"bytes,5,opt,name=branch,proto3" json:"branch,omitempty"`
 	// name of handler in source code
-	Entrypoint string `protobuf:"bytes,5,opt,name=entrypoint,proto3" json:"entrypoint,omitempty"`
+	Entrypoint string `protobuf:"bytes,6,opt,name=entrypoint,proto3" json:"entrypoint,omitempty"`
 	// subfolder path to entrypoint
-	Subfolder string `protobuf:"bytes,6,opt,name=subfolder,proto3" json:"subfolder,omitempty"`
+	Subfolder string `protobuf:"bytes,7,opt,name=subfolder,proto3" json:"subfolder,omitempty"`
 	// runtime/language of the function e.g php74,
 	// nodejs6, nodejs8, nodejs10, nodejs12, nodejs14, nodejs16,
 	// dotnet3, java11, ruby26, ruby27, go111, go113, go116,
 	// python37, python38, python39
-	Runtime string `protobuf:"bytes,7,opt,name=runtime,proto3" json:"runtime,omitempty"`
+	Runtime string `protobuf:"bytes,8,opt,name=runtime,proto3" json:"runtime,omitempty"`
 	// region to deploy in. defaults to europe-west1
-	Region string `protobuf:"bytes,8,opt,name=region,proto3" json:"region,omitempty"`
+	Region string `protobuf:"bytes,9,opt,name=region,proto3" json:"region,omitempty"`
 	// associated env vars
-	EnvVars map[string]string `protobuf:"bytes,9,rep,name=env_vars,json=envVars,proto3" json:"env_vars,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	EnvVars map[string]string `protobuf:"bytes,10,rep,name=env_vars,json=envVars,proto3" json:"env_vars,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	// eg. ACTIVE, DEPLOY_IN_PROGRESS, OFFLINE etc
-	Status string `protobuf:"bytes,10,opt,name=status,proto3" json:"status,omitempty"`
+	Status string `protobuf:"bytes,11,opt,name=status,proto3" json:"status,omitempty"`
 	// unique url of the function
-	Url string `protobuf:"bytes,11,opt,name=url,proto3" json:"url,omitempty"`
+	Url string `protobuf:"bytes,12,opt,name=url,proto3" json:"url,omitempty"`
 	// time of creation
-	Created string `protobuf:"bytes,12,opt,name=created,proto3" json:"created,omitempty"`
+	Created string `protobuf:"bytes,13,opt,name=created,proto3" json:"created,omitempty"`
 	// time it was updated
-	Updated string `protobuf:"bytes,13,opt,name=updated,proto3" json:"updated,omitempty"`
+	Updated string `protobuf:"bytes,14,opt,name=updated,proto3" json:"updated,omitempty"`
 }
 
 func (x *Func) Reset() {
@@ -412,6 +423,13 @@ func (x *Func) GetName() string {
 	return ""
 }
 
+func (x *Func) GetSource() string {
+	if x != nil {
+		return x.Source
+	}
+	return ""
+}
+
 func (x *Func) GetRepo() string {
 	if x != nil {
 		return x.Repo
@@ -729,6 +747,8 @@ type UpdateRequest struct {
 
 	// function name
 	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	// inline source code
+	Source string `protobuf:"bytes,2,opt,name=source,proto3" json:"source,omitempty"`
 }
 
 func (x *UpdateRequest) Reset() {
@@ -770,6 +790,13 @@ func (x *UpdateRequest) GetName() string {
 	return ""
 }
 
+func (x *UpdateRequest) GetSource() string {
+	if x != nil {
+		return x.Source
+	}
+	return ""
+}
+
 type UpdateResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1275,53 +1302,56 @@ var file_proto_function_proto_rawDesc = []byte{
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 }
 
 var (

function/proto/function.proto

@@ -35,24 +35,26 @@ message CallResponse {
 message DeployRequest {
 	// function name
 	string name = 1;
-	// github url to repo
+	// inline source code
-	string repo = 2;
+	string source = 2;
+	// github url for a repo
+	string repo = 3;
 	// branch to deploy. defaults to master
-	string branch = 3;
+	string branch = 4;
 	// optional subfolder path
-	string subfolder = 4;
+	string subfolder = 5;
 	// entry point, ie. handler name in the source code 
 	// if not provided, defaults to the name parameter
-	string entrypoint = 5;
+	string entrypoint = 6;
 	// runtime/lanaguage of the function e.g php74,
 	// nodejs6, nodejs8, nodejs10, nodejs12, nodejs14, nodejs16,
 	// dotnet3, java11, ruby26, ruby27, go111, go113, go116,
 	// python37, python38, python39
-	string runtime = 6;
+	string runtime = 7;
 	// region to deploy in. defaults to europe-west1
-	string region = 7;
+	string region = 8;
 	// environment variables to pass in at runtime
-	map<string,string> env_vars = 8;
+	map<string,string> env_vars = 9;
 }
 
 message DeployResponse {
@@ -69,31 +71,33 @@ message Func {
 	// function name
 	// limitation: must be unique across projects
 	string name = 2;
+	// the source code
+	string source = 3;
 	// git repo address
-	string repo = 3;
+	string repo = 4;
 	// branch to deploy. defaults to master
-	string branch = 4;
+	string branch = 5;
 	// name of handler in source code
-	string entrypoint = 5;
+	string entrypoint = 6;
 	// subfolder path to entrypoint
-	string subfolder = 6;
+	string subfolder = 7;
 	// runtime/language of the function e.g php74,
 	// nodejs6, nodejs8, nodejs10, nodejs12, nodejs14, nodejs16, 
 	// dotnet3, java11, ruby26, ruby27, go111, go113, go116,
 	// python37, python38, python39
-	string runtime = 7;
+	string runtime = 8;
 	// region to deploy in. defaults to europe-west1
-	string region = 8;
+	string region = 9;
 	// associated env vars
-	map<string,string> env_vars = 9;
+	map<string,string> env_vars = 10;
 	// eg. ACTIVE, DEPLOY_IN_PROGRESS, OFFLINE etc
-	string status = 10;
+	string status = 11;
 	// unique url of the function
-	string url = 11;
+	string url = 12;
 	// time of creation
-	string created = 12;
+	string created = 13;
 	// time it was updated
-	string updated = 13;
+	string updated = 14;
 }
 
 message ListResponse {
@@ -126,6 +130,8 @@ message DescribeResponse {
 message UpdateRequest {
 	// function name
 	string name = 1;
+	// inline source code
+	string source = 2;
 }
 
 message UpdateResponse {