Implementation of /badge/commit/<commit>.

Badge.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"fmt"
+	"github.com/gorilla/mux"
+	"net/http"
+	"text/template"
+)
+
+var baseTemplate *template.Template
+
+func init() {
+	baseTemplate = template.New("svgTemplate")
+	baseTemplate, _ = baseTemplate.Parse(svgTemplate)
+}
+
+func BadgeFromCommit(w http.ResponseWriter, r *http.Request) {
+	fmt.Println(mux.Vars(r))
+	commitID := mux.Vars(r)["commit"]
+	result, _ := db.Query("SELECT percentage FROM badge WHERE commit_hash=?", commitID)
+	defer result.Close()
+
+	w.Header().Set("Content-Type", "image/svg+xml")
+
+	if !result.Next() {
+		http.Error(w, "Request commit hash has no corresponding badge", 400)
+		//TODO send unknown svg instead
+		return
+	}
+
+	var percentage float64
+	result.Scan(&percentage)
+
+	fillColour := percentageToRGB(percentage)
+
+	template.New("svgConv")
+	pill := CoveragePill{
+		toOneDecimal(percentage * 100),
+		baseColour,
+		fillColour,
+	}
+	baseTemplate.Execute(w, pill)
+}
+
+func BadgeFromProject(w http.ResponseWriter, r *http.Request) {
+	projectName := mux.Vars(r)["project"]
+	tagName := mux.Vars(r)["tag"]
+
+	result, _ := db.Query("SELECT commit_hash FROM alias WHERE project_name=? AND project_tag=?", projectName, tagName)
+	defer result.Close()
+
+	var commit_hash string
+	result.Scan(&commit_hash)
+	fmt.Println(commit_hash)
+	mux.Vars(r)["commit"] = commit_hash
+	BadgeFromCommit(w, r)
+}

connection.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"database/sql"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+var db *sql.DB
+var alreadyUsingMemory bool
+
+func init() {
+	openDatabase("./database.sqlite")
+}
+
+func openDatabase(fileLocation string) {
+	db, _ = sql.Open("sqlite3", fileLocation)
+	db.SetMaxOpenConns(1)
+
+	// Initializes the tables
+	db.Exec(`CREATE TABLE IF NOT EXISTS badge (commit_hash VARCHAR(32) NOT NULL UNIQUE PRIMARY KEY, percentage FLOAT NOT NULL)`)
+	db.Exec(`CREATE TABLE IF NOT EXISTS alias (commit_hash VARCHAR(32) NOT NULL UNIQUE PRIMARY KEY, project_name TEXT NOT NULL, project_tag TEXT NOT NULL)`)
+}

main.go

@@ -1,69 +1,36 @@
 package main
 
 import (
-	"bytes"
 	"fmt"
 	"github.com/gorilla/mux"
-	"io/ioutil"
 	"net/http"
-)
-
-const (
-	baseColour         = "#555"
-	modifier   float64 = 0.2
-	maxValue           = 220
-	blue               = 55
+	"strconv"
+	"strings"
 )
 
 func main() {
-	//_ := template.New("svgConv")
-
-	//percentage := 0.999
-	//fill := percentageToRGB(percentage)
-
-	//_ := CoveragePill{
-	//	fmt.Sprintf("%.1f", toFixed(percentage, 3)*100),
-	//	baseColour,
-	//	fill,
-	//}
-
 	r := mux.NewRouter()
-	r.HandleFunc("/upload/go", upload)
+	r.HandleFunc("/upload/go", uploadGo)
+	r.HandleFunc("/badge/commit/{commit}.svg", BadgeFromCommit)
+	r.HandleFunc("/badge/{project}/{tag}.svg", BadgeFromProject)
 	_ = http.ListenAndServe(":8080", r)
 }
 
-func upload(w http.ResponseWriter, r *http.Request) {
-	if r.Method != "POST" {
-		return
-	}
-
-	err := r.ParseForm()
-	if err != nil {
-		http.Error(w, "Request parameters not parsed", 500)
-		return
-	}
-	err = r.ParseMultipartForm(5 << 20)
-	if err != nil {
-		http.Error(w, "Request parameters not parsed", 500)
-		return
-	}
-
-	form := r.Form
-
-	project := form.Get("project")
-	tag := form.Get("tag")
-	id := form.Get("id")
-	file, _, err := r.FormFile("file")
-	b, _ := ioutil.ReadAll(file)
-	n := bytes.Index(b, []byte{0})
-	content := string(b[n])
+func parseCoverage(content string) float64 {
+	var totalStatements = 0
+	var totalRun = 0
 
-	fmt.Print(content)
+	lines := strings.Split(content, "\n")
+	for _, line := range lines[1 : len(lines)-1] { // Skip first line (which is not relevant)
+		sl := strings.Split(line, " ")
+		statements, _ := strconv.Atoi(sl[len(sl)-2])
+		runCount, _ := strconv.Atoi(sl[len(sl)-1])
 
-	if project == "" || tag == "" || id == "" {
-		http.Error(w, "Request parameters [secret, project, tag, id] not found", 400)
-		return
+		totalStatements += statements
+		if runCount != 0 {
+			totalRun += statements
+		}
 	}
-
-	_, _ = fmt.Fprintf(w, "project: '%s'\ntag: '%s'\nid: '%s'\n", project, tag, id)
+	fmt.Printf("DEBUG :: TotalStatements: %d, TotalRunCount: %d\n", totalStatements, totalRun)
+	return float64(totalRun) / float64(totalStatements)
 }

pill.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"math"
 	"strconv"
 )
@@ -26,6 +27,13 @@ const svgTemplate string = `<?xml version="1.0" encoding="UTF-8"?>
     </g>
 </svg>`
 
+const (
+	baseColour         = "#555"
+	modifier   float64 = 0.2
+	maxValue           = 220
+	blue               = 55
+)
+
 type CoveragePill struct {
 	Percentage string
 	BaseColour string
@@ -57,7 +65,7 @@ func round(num float64) int {
 	return int(num + math.Copysign(0.5, num))
 }
 
-func toFixed(num float64, precision int) float64 {
-	output := math.Pow(10, float64(precision))
-	return float64(round(num*output)) / output
+func toOneDecimal(num float64) string {
+	output := math.Pow(10, float64(5))
+	return fmt.Sprintf("%.1f", float64(round(num*output))/output)
 }

upload.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+)
+
+func uploadGo(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		return
+	}
+
+	err := r.ParseForm()
+	if err != nil {
+		http.Error(w, "Request parameters not parsed", 500)
+		return
+	}
+	err = r.ParseMultipartForm(5 << 20)
+	if err != nil {
+		http.Error(w, "Request parameters not parsed", 500)
+		return
+	}
+
+	project := r.Form.Get("project")
+	tag := r.Form.Get("tag")
+	id := r.Form.Get("id")
+
+	if project == "" || tag == "" || id == "" {
+		http.Error(w, "Request parameters [secret, project, tag, id] not found", 400)
+		return
+	}
+	file, _, err := r.FormFile("file")
+	if err != nil {
+		http.Error(w, "Request parameter file not found", 400)
+		return
+	}
+	b, _ := ioutil.ReadAll(file)
+	coverage := parseCoverage(string(b))
+
+	db.Exec("INSERT INTO badge (commit_hash, percentage) VALUES (?, ?)", id, coverage)
+	db.Exec("INSERT INTO alias (commit_hash, project_name, project_tag) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE commit=?", id, project, tag, id)
+	w.Header().Set("Content-Type", "application/json")
+	fmt.Fprintf(w, `{"success": "true", "coverage": `+toOneDecimal(coverage*100)+`}`)
+}