Importing sdk from old repository (#1)

* Importing sdk from old repository

Signed-off-by: Ricardo Zanini <zanini@redhat.com>

* Removing IDE files

Signed-off-by: Ricardo Zanini <zanini@redhat.com>

Author: ricardozanini

.gitignore

@@ -0,0 +1,2 @@
+bin
+.idea

Makefile

@@ -0,0 +1,7 @@
+.PHONY: gen-types
+gen-types:
+	./hack/generate-spec-types.sh
+
+addheaders:
+	@which addlicense > /dev/null || go get -u github.com/google/addlicense
+	@addlicense -c "The Serverless Workflow Specification Authors" -l apache .

README.md

@@ -0,0 +1,40 @@
+# Go SDK for Serverless Workflow
+
+Here you will find all the [specification types](https://github.com/serverlessworkflow/specification/blob/master/schema/workflow.json) defined by our Json Schemas, in Go.
+
+Some types defined by the specification can be generic objects (such as [`Extensions`](https://github.com/serverlessworkflow/specification/blob/master/extending/README.md)) 
+or share a minimum interface, like [`States`](https://github.com/serverlessworkflow/specification/tree/master/README.md#State-Definition). 
+
+In cases like these, we've decided to represent their types as the Kubernetes type [`RawExtension`](https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/#rawextension),
+that can be found on `kuberbetes/serverlessworkflow` package. 
+
+This way the Serverless Workflow types can be Kubernetes friendly, to make it easy for one to
+use the package when developing Kubernetes applications.
+
+## How to use
+
+Run the following command in the root of your Go's project:
+
+```shell script
+$ go get -u github.com/serverlessworkflow/sdk-go
+```
+
+Your `go.mod` file should be updated to add a dependency from the Serverless Workflow specification.
+
+To use the generated types, import the package in your go file like this:
+
+```go
+package mypackage
+
+import "github.com/serverlessworkflow/sdk-go/pkg/apis/sw"
+```
+
+Then just reference the package within your file like `myfunction := sw.Function{}`.
+
+If you wish to use the Kubernetes friendly types, import the `kubernetes` package instead:
+
+```go
+package mypackage
+
+import "github.com/serverlessworkflow/sdk-go/pkg/apis/kubernetes/sw"
+```

code-of-conduct.md

@@ -0,0 +1,59 @@
+## CNCF Community Code of Conduct v1.0
+
+Other languages available:
+- [Chinese/中文](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/zh.md)
+- [German/Deutsch](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/de.md)
+- [Spanish/Español](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/es.md)
+- [French/Français](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/fr.md)
+- [Italian/Italiano](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/it.md)
+- [Japanese/日本語](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/jp.md)
+- [Korean/한국어](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/ko.md)
+- [Ukrainian/Українська](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/uk.md)
+- [Russian/Русский](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/ru.md)
+- [Portuguese/Português](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/pt.md)
+- [Arabic/العربية](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/ar.md)
+- [Polish/Polski](https://github.com/cncf/foundation/blob/master/code-of-conduct-languages/pl.md)
+
+### Contributor Code of Conduct
+
+As contributors and maintainers of this project, and in the interest of fostering
+an open and welcoming community, we pledge to respect all people who contribute
+through reporting issues, posting feature requests, updating documentation,
+submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free experience for
+everyone, regardless of level of experience, gender, gender identity and expression,
+sexual orientation, disability, personal appearance, body size, race, ethnicity, age,
+religion, or nationality.
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery
+* Personal attacks
+* Trolling or insulting/derogatory comments
+* Public or private harassment
+* Publishing others' private information, such as physical or electronic addresses,
+ without explicit permission
+* Other unethical or unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are not
+aligned to this Code of Conduct. By adopting this Code of Conduct, project maintainers
+commit themselves to fairly and consistently applying these principles to every aspect
+of managing this project. Project maintainers who do not follow or enforce the Code of
+Conduct may be permanently removed from the project team.
+
+This code of conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior in Kubernetes may be reported by contacting the [Kubernetes Code of Conduct Committee](https://git.k8s.io/community/committee-code-of-conduct) via conduct@kubernetes.io. For other projects, please contact a CNCF project maintainer or our mediator, Mishi Choudhary via mishi@linux.com.
+
+This Code of Conduct is adapted from the Contributor Covenant
+(http://contributor-covenant.org), version 1.2.0, available at
+http://contributor-covenant.org/version/1/2/0/
+
+
+### CNCF Events Code of Conduct
+
+CNCF events are governed by the Linux Foundation [Code of Conduct](https://events.linuxfoundation.org/code-of-conduct/) available on the event page. 
+This is designed to be compatible with the above policy and also includes more details on responding to incidents.

go.mod

@@ -0,0 +1,5 @@
+module github.com/serverlessworkflow/sdk-go
+
+go 1.14
+
+require k8s.io/apimachinery v0.18.5

go.sum

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+k8s.io/apimachinery v0.18.5/go.mod h1:OaXp26zu/5J7p0f92ASynJa1pZo06YlV9fG7BoWbCko=
+k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
+k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
+k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=
+k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
+k8s.io/kube-openapi v0.0.0-20200410145947-61e04a5be9a6/go.mod h1:GRQhZsXIAJ1xR0C9bd8UpWHZ5plfAS9fzPjJuQ6JL3E=
+sigs.k8s.io/structured-merge-diff/v3 v3.0.0-20200116222232-67a7b8c61874/go.mod h1:PlARxl6Hbt/+BC80dRLi1qAmnMqwqDg62YvvVkZjemw=
+sigs.k8s.io/structured-merge-diff/v3 v3.0.0 h1:dOmIZBMfhcHS09XZkMyUgkq5trg3/jRyJYFZUiaOp8E=
+sigs.k8s.io/structured-merge-diff/v3 v3.0.0/go.mod h1:PlARxl6Hbt/+BC80dRLi1qAmnMqwqDg62YvvVkZjemw=
+sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
+sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=

hack/generate-spec-types.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+# Copyright 2020 The Serverless Workflow Specification Authors
+#
+# 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.
+
+
+which ./bin/gojsonschema >/dev/null || go build -o ./bin/gojsonschema github.com/atombender/go-jsonschema/cmd/gojsonschema
+
+echo "--> Generating specification types"
+
+declare targetdir="/tmp/serverlessworkflow"
+
+if [ -d "${targetdir}" ]; then
+  git clone git@github.com:serverlessworkflow/specification.git ${targetdir}
+fi
+
+./bin/gojsonschema -o generated.types_spec.go -p sw "${targetdir}"/specification/schema/workflow.json
+
+cp -v generated.types_spec.go ./pkg/apis/sw/
+
+echo "--> Adapting specification types for Kubernetes"
+
+# fix interface{} types
+# this is a quick and dirty method to adapt the types to Kubernetes format
+# we should write a better parse to handle this and/or add metadata info to the schema and suggest a PR to the tool to handle it
+sed -i '8 i\import "k8s.io/apimachinery/pkg/runtime"' generated.types_spec.go
+sed -i 's/Extensions \[\]WorkflowExtensionsElem/Extensions []runtime.RawExtension/g' generated.types_spec.go
+sed -i 's/Metadata map\[string\]interface{}/Metadata map\[string\]string/g' generated.types_spec.go
+sed -i 's/States \[\]interface{}/States []runtime.RawExtension/g' generated.types_spec.go
+sed -i 's/\[\]interface{}{/\[\]string{/g' generated.types_spec.go
+sed -i 's/\[\]interface{}/runtime.RawExtension/g' generated.types_spec.go
+sed -i 's/ interface{}/ runtime.RawExtension/g' generated.types_spec.go
+sed -i 's/var raw map\[string\]interface{}/var raw placeholder/g' generated.types_spec.go
+sed -i 's/map\[string\]interface{}/runtime.RawExtension/g' generated.types_spec.go
+sed -i 's/var raw placeholder/var raw map[string]interface{}/g' generated.types_spec.go
+sed -i '/runtime.RawExtension/i \/\/ \+kubebuilder:pruning:PreserveUnknownFields' generated.types_spec.go
+sed -i '/pruning:PreserveUnknownFields/i \/\/ \+kubebuilder:object:generate=false' generated.types_spec.go
+
+mv -v generated.types_spec.go ./pkg/apis/kubernetes/sw/
+
+go fmt ./pkg/...
+
+sh ./hack/run-controller-gen.sh
+
+make addheaders

hack/run-controller-gen.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+# Copyright 2020 The Serverless Workflow Specification Authors
+#
+# 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.
+
+
+set -e
+
+which ./bin/controller-gen >/dev/null || go build -o ./bin/controller-gen sigs.k8s.io/controller-tools/cmd/controller-gen
+
+./bin/controller-gen object paths=./pkg/apis/kubernetes/sw