tmp(releaser): add helper methods for releasers

internal/releaser/github.go

@@ -0,0 +1,82 @@
+package releaser
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/Nightapes/go-semantic-release/pkg/config"
+	"io/ioutil"
+	"strings"
+)
+
+// GITHUB identifer for github interface
+const GITHUB = "github"
+const githubCreateRleasURL = "https://api.github.com/repos"
+const githubUploadAssetURL = "https://uploads.github.com"
+
+// GitHubReleaser type struct
+type GitHubReleaser struct {
+	repositoryURL  string
+	authToken      string
+	assets         []config.Asset
+	Version        string `json:"tag_name"`
+	Branch         string `json:"target_commitish"`
+	ReleaseName    string `json:"name"`
+	ReleaseMessage string `json:"body"`
+	Draft          bool   `json:"draft,omitempty"`
+	Prerelease     bool   `json:"prerelease,omitempty"`
+}
+
+type gitHubCreateReleaseResponse struct {
+	ReleaseURL     string `json:url`
+	AssetUploadURL string `json:upload_url`
+}
+
+// NewGitHubReleaser initialize a new GitHubRelease
+func NewGitHubReleaser(c *config.ReleaseConfig) *GitHubReleaser {
+	return &GitHubReleaser{
+		repositoryURL: c.Github["url"],
+		authToken:     c.Github["authToken"],
+		assets:        c.Assets,
+	}
+}
+
+// CreateRelease creates release on remote
+func (g *GitHubReleaser) CreateRelease(releaseName, releaseMessage, branch, version string) error {
+	g.ReleaseName = releaseName
+	g.ReleaseMessage = releaseMessage
+	g.Branch = branch
+	g.Version = version
+
+	repositoryURI := strings.TrimLeft(g.repositoryURL, "/")
+	jsonRelease, err := json.Marshal(g)
+
+	if err != nil {
+		return fmt.Errorf("releaser: github: could not marshal GitHubReleaser struct. Error: %s", err.Error())
+	}
+
+	tempDir, err := ioutil.TempDir(".", "tempZipAssets")
+	if err != nil {
+		return fmt.Errorf("releaser: github: Could not create a temp directory. Error: %s", err.Error())
+	}
+	assetList, err := prepareAssets(tempDir, g.assets)
+	if err != nil {
+		return err
+	}
+
+	response, err := makeReleaseRequest(githubCreateRleasURL+repositoryURI, g.authToken, jsonRelease)
+	if err != nil {
+		return err
+	}
+
+	releaseInfo := gitHubCreateReleaseResponse{}
+	if err := json.Unmarshal(response, &releaseInfo); err != nil {
+		return err
+	}
+
+	// tbd build new upload url
+	if err := uploadReleaseAssets(releaseInfo.AssetUploadURL, g.authToken, assetList); err != nil {
+		return err
+	}
+
+	return nil
+}