initial jenkins file.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

jenkins.go

@@ -0,0 +1,107 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+type (
+	// Auth contain username and token
+	Auth struct {
+		Username string
+		Token    string
+	}
+
+	// Jenkins contain Auth and BaseURL
+	Jenkins struct {
+		Auth    *Auth
+		BaseURL string
+	}
+)
+
+// NewJenkins is initial Jenkins object
+func NewJenkins(auth *Auth, url string) *Jenkins {
+	url = strings.TrimRight(url, "/")
+	return &Jenkins{
+		Auth:    auth,
+		BaseURL: url,
+	}
+}
+
+func (jenkins *Jenkins) buildURL(path string, params url.Values) (requestURL string) {
+	requestURL = jenkins.BaseURL + path
+	fmt.Println(requestURL)
+	if params != nil {
+		queryString := params.Encode()
+		if queryString != "" {
+			requestURL = requestURL + "?" + queryString
+		}
+	}
+
+	return
+}
+
+func (jenkins *Jenkins) sendRequest(req *http.Request) (*http.Response, error) {
+	if jenkins.Auth != nil {
+		req.SetBasicAuth(jenkins.Auth.Username, jenkins.Auth.Token)
+	}
+	return http.DefaultClient.Do(req)
+}
+
+func (jenkins *Jenkins) parseResponse(resp *http.Response, body interface{}) (err error) {
+	defer resp.Body.Close()
+
+	if body == nil {
+		return
+	}
+
+	data, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return
+	}
+
+	return json.Unmarshal(data, body)
+}
+
+func (jenkins *Jenkins) post(path string, params url.Values, body interface{}) (err error) {
+	requestURL := jenkins.buildURL(path, params)
+	req, err := http.NewRequest("POST", requestURL, nil)
+	if err != nil {
+		return
+	}
+
+	resp, err := jenkins.sendRequest(req)
+	if err != nil {
+		return
+	}
+
+	fmt.Println(resp)
+	return jenkins.parseResponse(resp, body)
+}
+
+func (jenkins *Jenkins) parseJobPath(job string) string {
+	var path string
+
+	jobs := strings.Split(strings.TrimPrefix(job, "/"), "/")
+
+	for _, value := range jobs {
+		value = strings.Trim(value, " ")
+		if len(value) == 0 {
+			continue
+		}
+
+		path = fmt.Sprintf("%s/job/%s", path, value)
+	}
+
+	return path
+}
+
+func (jenkins *Jenkins) trigger(job string, params url.Values) error {
+	path := jenkins.parseJobPath(job) + "/build"
+
+	return jenkins.post(path, params, nil)
+}