Feat: See Pipeline Job Logs (#54)

This MR adds the ability to see log traces associated with Gitlab CI jobs, via the new `perform_linewise_action` keybinding in the pipeline popup.

cmd/job.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+)
+
+type JobTraceRequest struct {
+	JobId int `json:"job_id"`
+}
+
+type JobTraceResponse struct {
+	SuccessResponse
+	File string `json:"file"`
+}
+
+func JobHandler(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+	c := r.Context().Value("client").(Client)
+
+	if r.Method != http.MethodGet {
+		w.Header().Set("Allow", http.MethodGet)
+		c.handleError(w, errors.New("Invalid request type"), "That request type is not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	body, err := io.ReadAll(r.Body)
+	if err != nil {
+		c.handleError(w, err, "Could not read request body", http.StatusBadRequest)
+	}
+
+	defer r.Body.Close()
+
+	var jobTraceRequest JobTraceRequest
+	err = json.Unmarshal(body, &jobTraceRequest)
+	if err != nil {
+		c.handleError(w, err, "Could not unmarshal data from request body", http.StatusBadRequest)
+	}
+
+	reader, _, err := c.git.Jobs.GetTraceFile(c.projectId, jobTraceRequest.JobId)
+
+	file, err := io.ReadAll(reader)
+
+	if err != nil {
+		c.handleError(w, err, "Could not read job trace file", http.StatusBadRequest)
+	}
+
+	response := JobTraceResponse{
+		SuccessResponse: SuccessResponse{
+			Status:  http.StatusOK,
+			Message: "Log file read",
+		},
+		File: string(file),
+	}
+
+	json.NewEncoder(w).Encode(response)
+}

cmd/main.go

@@ -41,6 +41,7 @@ func main() {
 	m.Handle("/reply", withGitlabContext(http.HandlerFunc(ReplyHandler), c))
 	m.Handle("/members", withGitlabContext(http.HandlerFunc(ProjectMembersHandler), c))
 	m.Handle("/pipeline", withGitlabContext(http.HandlerFunc(PipelineHandler), c))
+	m.Handle("/job", withGitlabContext(http.HandlerFunc(JobHandler), c))
 
 	port := fmt.Sprintf(":%s", os.Args[3])
 	server := &http.Server{