feat: semantic versions + ErrParseMasterSID

.github/workflows/go.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: '1.20'
+        go-version: '1.21'
 
     - name: Build
       run: make build

.github/workflows/release.yml

@@ -0,0 +1,16 @@
+name: Release
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+      - name: Release
+        uses: codfish/semantic-release-action@v2.0.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.releaserc

@@ -0,0 +1,7 @@
+branches:
+  - name: "master"
+
+plugins:
+  - "@semantic-release/commit-analyzer"
+  - "@semantic-release/release-notes-generator"
+  - "@semantic-release/GitHub"

ejudge/ejudge.go

@@ -13,6 +13,10 @@ import (
 
 const BadSID = "0000000000000000"
 
+var (
+	ErrParseMasterSID = fmt.Errorf("can't parse master SID")
+)
+
 type Config struct {
 	URL       string `json:"url"`
 	Login     string `json:"login"`
@@ -137,6 +141,9 @@ func (ej *Ejudge) ReloadConfig(sid string, cid int) error {
 		return err
 	}
 	csid := req.URL.Query().Get("SID")
+	if csid == "" {
+		return ErrParseMasterSID
+	}
 	logrus.WithFields(logrus.Fields{"CID": cid, "CSID": csid, "SID": sid}).Info("success master login")
 	_, _, err = ej.postRequest("new-master", url.Values{
 		"SID":    {csid},