Add log line anchor for action logs (#25532)

Close #24593

Some behavior:

- If log step line in hash exists, expand the step and scroll to the log
line.
- If step exists but line not exists, the step will be expanded.
- If step not exists, stays on the job's page.

Some Notes:

- Changed mounted to async because need to await for first `loadJob` so
`currentJobStepsStates` can be initialized and used in
`hashChangeListener `.

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

web_src/js/components/RepoActionView.vue

@@ -204,15 +204,19 @@ const sfc = {
     };
   },
 
-  mounted() {
+  async mounted() {
     // load job data and then auto-reload periodically
-    this.loadJob();
+    // need to await first loadJob so this.currentJobStepsStates is initialized and can be used in hashChangeListener
+    await this.loadJob();
     this.intervalID = setInterval(this.loadJob, 1000);
     document.body.addEventListener('click', this.closeDropdown);
+    this.hashChangeListener();
+    window.addEventListener('hashchange', this.hashChangeListener);
   },
 
   beforeUnmount() {
     document.body.removeEventListener('click', this.closeDropdown);
+    window.removeEventListener('hashchange', this.hashChangeListener);
   },
 
   unmounted() {
@@ -280,14 +284,16 @@ const sfc = {
       this.fetchPost(`${this.run.link}/approve`);
     },
 
-    createLogLine(line, startTime) {
+    createLogLine(line, startTime, stepIndex) {
       const div = document.createElement('div');
       div.classList.add('job-log-line');
+      div.setAttribute('id', `jobstep-${stepIndex}-${line.index}`);
       div._jobLogTime = line.timestamp;
 
-      const lineNumber = document.createElement('div');
-      lineNumber.className = 'line-num';
+      const lineNumber = document.createElement('a');
+      lineNumber.classList.add('line-num', 'muted');
       lineNumber.textContent = line.index;
+      lineNumber.setAttribute('href', `#jobstep-${stepIndex}-${line.index}`);
       div.append(lineNumber);
 
       // for "Show timestamps"
@@ -318,7 +324,7 @@ const sfc = {
       for (const line of logLines) {
         // TODO: group support: ##[group]GroupTitle , ##[endgroup]
         const el = this.getLogsContainer(stepIndex);
-        el.append(this.createLogLine(line, startTime));
+        el.append(this.createLogLine(line, startTime, stepIndex));
       }
     },
 
@@ -429,6 +435,21 @@ const sfc = {
       } else {
         actionBodyEl.append(fullScreenEl);
       }
+    },
+    async hashChangeListener() {
+      const selectedLogStep = window.location.hash;
+      if (!selectedLogStep) return;
+      const [_, step, _line] = selectedLogStep.split('-');
+      if (!this.currentJobStepsStates[step]) return;
+      if (!this.currentJobStepsStates[step].expanded && this.currentJobStepsStates[step].cursor === null) {
+        this.currentJobStepsStates[step].expanded = true;
+        // need to await for load job if the step log is loaded for the first time
+        // so logline can be selected by querySelector
+        await this.loadJob();
+      }
+      const logLine = this.$refs.steps.querySelector(selectedLogStep);
+      if (!logLine) return;
+      logLine.querySelector('.line-num').click();
     }
   },
 };
@@ -802,10 +823,15 @@ export function initRepositoryActionView() {
   display: flex;
 }
 
-.job-step-section .job-step-logs .job-log-line:hover {
+.job-log-line:hover,
+.job-log-line:target {
   background-color: var(--color-console-hover-bg);
 }
 
+.job-log-line:target {
+  scroll-margin-top: 95px;
+}
+
 /* class names 'log-time-seconds' and 'log-time-stamp' are used in the method toggleTimeDisplay */
 .job-log-line .line-num, .log-time-seconds {
   width: 48px;
@@ -814,6 +840,11 @@ export function initRepositoryActionView() {
   user-select: none;
 }
 
+.job-log-line:target > .line-num {
+  color: var(--color-primary);
+  text-decoration: underline;
+}
+
 .log-time-seconds {
   padding-right: 2px;
 }