Integrated code lifecycle: View build logs in the browser

src/main/java/de/tum/cit/aet/artemis/programming/service/BuildLogEntryService.java

@@ -2,12 +2,15 @@
 
 import static de.tum.cit.aet.artemis.core.config.Constants.PROFILE_CORE;
 
+import java.io.BufferedReader;
 import java.io.IOException;
+import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.time.ZonedDateTime;
+import java.time.format.DateTimeParseException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -491,4 +494,51 @@ public boolean buildJobHasLogFile(String buildJobId, ProgrammingExercise program
         return Files.exists(logPath);
     }
 
+    /**
+     * Parses the build log entries from a given file and returns them as a list of {@link BuildLogDTO} objects.
+     *
+     * <p>
+     * The method reads the file line by line and splits each line into a timestamp and a log message.
+     * The timestamp is expected to be separated from the log message by a tab character.
+     * If the timestamp cannot be parsed, the log message is appended to the previous entry.
+     * </p>
+     *
+     * @param buildLog The {@link FileSystemResource} representing the build log file.
+     * @return A list of {@link BuildLogDTO} objects containing the parsed build log entries.
+     */
+    public List<BuildLogDTO> parseBuildLogEntries(FileSystemResource buildLog) {
+        try {
+            List<BuildLogDTO> buildLogEntries = new ArrayList<>();
+            try (BufferedReader reader = new BufferedReader(new InputStreamReader(buildLog.getInputStream()))) {
+                String line;
+                while ((line = reader.readLine()) != null) {
+                    String[] parts = line.split("\t", 2);
+                    if (parts.length == 2) {
+                        try {
+                            ZonedDateTime time = ZonedDateTime.parse(parts[0]);
+                            buildLogEntries.add(new BuildLogDTO(time, parts[1]));
+                        }
+                        catch (DateTimeParseException e) {
+                            // If the time cannot be parsed, append the line to the last entry
+                            if (!buildLogEntries.isEmpty()) {
+                                BuildLogDTO lastEntry = buildLogEntries.getLast();
+                                buildLogEntries.set(buildLogEntries.size() - 1, new BuildLogDTO(lastEntry.time(), lastEntry.log() + "\n\t" + line));
+                            }
+                        }
+                    }
+                    else {
+                        // If the line does not contain a tab, add it to in a new entry
+                        BuildLogDTO lastEntry = buildLogEntries.getLast();
+                        buildLogEntries.add(new BuildLogDTO(lastEntry.time(), line));
+                    }
+                }
+            }
+            return buildLogEntries;
+        }
+        catch (IOException e) {
+            log.error("Error occurred while trying to parse build log entries", e);
+            return new ArrayList<>();
+        }
+    }
+
 }

src/main/java/de/tum/cit/aet/artemis/programming/web/localci/BuildLogResource.java

@@ -2,6 +2,8 @@
 
 import static de.tum.cit.aet.artemis.core.config.Constants.PROFILE_LOCALCI;
 
+import java.util.List;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.context.annotation.Profile;
@@ -16,6 +18,7 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import de.tum.cit.aet.artemis.buildagent.dto.BuildLogDTO;
 import de.tum.cit.aet.artemis.core.security.annotations.EnforceAtLeastEditor;
 import de.tum.cit.aet.artemis.programming.service.BuildLogEntryService;
 
@@ -52,4 +55,25 @@ public ResponseEntity<Resource> getBuildLogForBuildJob(@PathVariable String buil
         responseHeaders.setContentDispositionFormData("attachment", "build-" + buildJobId + ".log");
         return new ResponseEntity<>(buildLog, responseHeaders, HttpStatus.OK);
     }
+
+    /**
+     * GET /build-log/{buildJobId}/entries : get the build log entries for a given result
+     *
+     * @param buildJobId the id of the build job for which to retrieve the build log entries
+     * @return the ResponseEntity with status 200 (OK) and the build log entries in the body, or with status 404 (Not Found) if the build log entries could not be found
+     */
+    @GetMapping("build-log/{buildJobId}/entries")
+    @EnforceAtLeastEditor
+    public ResponseEntity<List<BuildLogDTO>> getBuildLogEntriesForBuildJob(@PathVariable String buildJobId) {
+        FileSystemResource buildLog = buildLogEntryService.retrieveBuildLogsFromFileForBuildJob(buildJobId);
+        if (buildLog == null) {
+            return ResponseEntity.notFound().build();
+        }
+
+        var buildLogEntries = buildLogEntryService.parseBuildLogEntries(buildLog);
+        if (buildLogEntries == null || buildLogEntries.isEmpty()) {
+            return ResponseEntity.notFound().build();
+        }
+        return ResponseEntity.ok(buildLogEntries);
+    }
 }

src/main/webapp/app/entities/programming/build-log.model.ts

@@ -8,6 +8,11 @@ export enum BuildLogType {
     OTHER = 'OTHER',
 }
 
+export type BuildLogLines = {
+    time: any;
+    logLines: string[];
+};
+
 export type BuildLogEntry = {
     time: any;
     log: string;

src/main/webapp/app/localci/build-queue/build-queue.component.html

@@ -504,7 +504,7 @@ <h3 id="build-queue-finished-heading" jhiTranslate="artemisApp.buildQueue.finish
         <div>
             <button
                 class="btn"
-                (click)="this.open(content)"
+                (click)="this.openModal(filterModal)"
                 [ngClass]="{ 'btn-secondary': !finishedBuildJobFilter.numberOfAppliedFilters, 'btn-success': !!finishedBuildJobFilter.numberOfAppliedFilters }"
             >
                 <fa-icon [icon]="faFilter" />
@@ -617,7 +617,7 @@ <h3 id="build-queue-finished-heading" jhiTranslate="artemisApp.buildQueue.finish
                                 }
                             </td>
                             <td class="finish-jobs-column-strings">
-                                <a class="detail-link" (click)="viewBuildLogs(finishedBuildJob.id)" jhiTranslate="artemisApp.result.buildLogs.viewLogs"></a>
+                                <a class="detail-link" (click)="viewBuildLogs(buildLogsModal, finishedBuildJob.id)" jhiTranslate="artemisApp.result.buildLogs.viewLogs"></a>
                             </td>
                             <td class="finish-jobs-column-strings">
                                 <span>{{ finishedBuildJob.buildAgentAddress }}</span>
@@ -742,7 +742,7 @@ <h3 id="build-queue-finished-heading" jhiTranslate="artemisApp.buildQueue.finish
     }
 </div>
 <!-- Modal -->
-<ng-template #content let-modal>
+<ng-template #filterModal let-modal>
     <div class="modal-header">
         <h5 class="modal-title">
             <span jhiTranslate="artemisApp.buildQueue.filter.title"></span>
@@ -879,3 +879,38 @@ <h5 class="my-0">
         </button>
     </div>
 </ng-template>
+
+<ng-template #buildLogsModal let-modal>
+    <div class="modal-header">
+        <h5 class="modal-title">
+            <span jhiTranslate="artemisApp.buildQueue.logs.title"></span>
+            <span> {{ this.displayedBuildJobId }}</span>
+        </h5>
+        <button type="button" class="btn-close" aria-label="Close" (click)="modal.dismiss()"></button>
+    </div>
+    <div class="modal-body">
+        <table class="table table-borderless">
+            <tbody>
+                @for (logEntry of rawBuildLogs; track logEntry) {
+                    <tr class="build-output__entry">
+                        <td class="build-output__entry-date">{{ logEntry.time | artemisDate: 'long' : true : undefined : false : true }}</td>
+                        <td class="build-output__entry-text">
+                            @for (line of logEntry.logLines; track line) {
+                                <span>{{ line }}</span>
+                                <br />
+                            }
+                        </td>
+                    </tr>
+                }
+            </tbody>
+        </table>
+    </div>
+    <div class="modal-footer">
+        <button type="button" class="btn btn-secondary" (click)="modal.close()">
+            <span jhiTranslate="artemisApp.buildQueue.filter.close"></span>
+        </button>
+        <button class="btn btn-primary" (click)="downloadBuildLogs()">
+            <span jhiTranslate="artemisApp.buildQueue.logs.download"></span>
+        </button>
+    </div>
+</ng-template>

src/main/webapp/app/localci/build-queue/build-queue.component.scss

@@ -34,3 +34,21 @@
 .finish-jobs-column-strings {
     max-width: 180px;
 }
+
+.build-output {
+    height: inherit;
+    &__entry {
+        &-date {
+            width: 200px;
+            margin-right: 10px;
+            color: var(--secondary);
+            font-weight: normal;
+            float: left;
+            clear: left;
+        }
+        &-text {
+            margin-bottom: 0;
+            color: var(--body-color);
+        }
+    }
+}

src/main/webapp/app/localci/build-queue/build-queue.component.ts

@@ -19,6 +19,7 @@ import { NgbModal, NgbTypeahead } from '@ng-bootstrap/ng-bootstrap';
 import { LocalStorageService } from 'ngx-webstorage';
 import { Observable, OperatorFunction, Subject, Subscription, merge } from 'rxjs';
 import { UI_RELOAD_TIME } from 'app/shared/constants/exercise-exam-constants';
+import { BuildLogEntry, BuildLogLines } from 'app/entities/programming/build-log.model';
 
 export class FinishedBuildJobFilter {
     status?: string = undefined;
@@ -159,6 +160,9 @@ export class BuildQueueComponent implements OnInit, OnDestroy {
     searchSubscription: Subscription;
     searchTerm?: string = undefined;
 
+    rawBuildLogs: BuildLogLines[] = [];
+    displayedBuildJobId?: string;
+
     constructor(
         private route: ActivatedRoute,
         private websocketService: JhiWebsocketService,
@@ -386,11 +390,33 @@ export class BuildQueueComponent implements OnInit, OnDestroy {
 
     /**
      * View the build logs of a specific build job
-     * @param resultId The id of the build job
+     * @param modal The modal to open
+     * @param buildJobId The id of the build job
+     */
+    viewBuildLogs(modal: any, buildJobId: string | undefined): void {
+        if (buildJobId) {
+            this.openModal(modal, true);
+            this.displayedBuildJobId = buildJobId;
+            this.buildQueueService.getBuildJobLogs(buildJobId).subscribe({
+                next: (buildLogs: BuildLogEntry[]) => {
+                    this.rawBuildLogs = buildLogs.map((entry) => {
+                        const logLines = entry.log ? entry.log.split('\n') : [];
+                        return { time: entry.time, logLines: logLines };
+                    });
+                },
+                error: (res: HttpErrorResponse) => {
+                    onError(this.alertService, res);
+                },
+            });
+        }
+    }
+
+    /**
+     * Download the build logs of a specific build job
      */
-    viewBuildLogs(resultId: string | undefined): void {
-        if (resultId) {
-            const url = `/api/build-log/${resultId}`;
+    downloadBuildLogs(): void {
+        if (this.displayedBuildJobId) {
+            const url = `/api/build-log/${this.displayedBuildJobId}`;
             window.open(url, '_blank');
         }
     }
@@ -443,8 +469,8 @@ export class BuildQueueComponent implements OnInit, OnDestroy {
     /**
      * Opens the modal.
      */
-    open(content: any) {
-        this.modalService.open(content);
+    openModal(modal: any, fullscreen?: boolean, size?: 'sm' | 'lg' | 'xl', scrollable = true, keyboard = true) {
+        this.modalService.open(modal, { size, keyboard, scrollable, fullscreen });
     }
 
     /**

src/main/webapp/app/localci/build-queue/build-queue.service.ts

@@ -7,6 +7,7 @@ import { BuildJob, BuildJobStatistics, FinishedBuildJob, SpanType } from 'app/en
 import { createNestedRequestOption } from 'app/shared/util/request.util';
 import { HttpResponse } from '@angular/common/http';
 import { FinishedBuildJobFilter } from 'app/localci/build-queue/build-queue.component';
+import { BuildLogEntry } from 'app/entities/programming/build-log.model';
 
 @Injectable({ providedIn: 'root' })
 export class BuildQueueService {
@@ -188,4 +189,16 @@ export class BuildQueueService {
             }),
         );
     }
+
+    /**
+     * Get all build jobs of a course in the queue
+     * @param buildJobId
+     */
+    getBuildJobLogs(buildJobId: string): Observable<BuildLogEntry[]> {
+        return this.http.get<BuildLogEntry[]>(`${this.resourceUrl}/build-log/${buildJobId}/entries`).pipe(
+            catchError((err) => {
+                return throwError(() => new Error(`Failed to get build log entries for build job ${buildJobId}\n${err.message}`));
+            }),
+        );
+    }
 }

src/main/webapp/app/shared/pipes/artemis-date.pipe.ts

@@ -36,6 +36,7 @@ export class ArtemisDatePipe implements PipeTransform, OnDestroy {
     private showTime = true;
     private showSeconds = false;
     private showWeekday = false;
+    private showMilliSeconds = false;
     private static mobileDeviceSize = 768;
 
     constructor(private translateService: TranslateService) {}
@@ -47,8 +48,9 @@ export class ArtemisDatePipe implements PipeTransform, OnDestroy {
      * @param seconds Should seconds be displayed? Defaults to false.
      * @param timeZone Explicit time zone that should be used instead of the local time zone.
      * @param weekday Should the weekday be displayed? Defaults to false.
+     * @param milliSeconds Should milliseconds be displayed? Defaults to false.
      */
-    transform(dateTime: DateType, format: DateFormat = 'long', seconds = false, timeZone: string | undefined = undefined, weekday = false): string {
+    transform(dateTime: DateType, format: DateFormat = 'long', seconds = false, timeZone: string | undefined = undefined, weekday = false, milliSeconds = false): string {
         // Return empty string if given dateTime equals null or is not convertible to dayjs.
         if (!dateTime || !dayjs(dateTime).isValid()) {
             return '';
@@ -59,6 +61,7 @@ export class ArtemisDatePipe implements PipeTransform, OnDestroy {
         this.showTime = format !== 'short-date' && format !== 'long-date';
         this.showSeconds = seconds;
         this.showWeekday = weekday;
+        this.showMilliSeconds = milliSeconds;
 
         // Evaluate the format length based on the current window width.
         this.formatLengthBasedOnWindowWidth(window.innerWidth);
@@ -88,12 +91,12 @@ export class ArtemisDatePipe implements PipeTransform, OnDestroy {
      * @param format Format of the localized date time. Defaults to 'long'.
      * @param seconds Should seconds be displayed? Defaults to false.
      */
-    static format(locale = 'en', format: DateFormat = 'long', seconds = false): string {
+    static format(locale = 'en', format: DateFormat = 'long', seconds = false, showMilliSeconds = false): string {
         const long = format === 'long' || format === 'long-date';
         const showDate = format !== 'time';
         const showTime = format !== 'short-date' && format !== 'long-date';
         const dateFormat = ArtemisDatePipe.dateFormat(long, showDate, locale);
-        const timeFormat = ArtemisDatePipe.timeFormat(showTime, seconds);
+        const timeFormat = ArtemisDatePipe.timeFormat(showTime, seconds, showMilliSeconds);
         return dateFormat + (dateFormat && timeFormat ? ' ' : '') + timeFormat;
     }
 
@@ -123,7 +126,7 @@ export class ArtemisDatePipe implements PipeTransform, OnDestroy {
 
     private format(): string {
         const dateFormat = ArtemisDatePipe.dateFormat(this.long, this.showDate, this.locale);
-        const timeFormat = ArtemisDatePipe.timeFormat(this.showTime, this.showSeconds);
+        const timeFormat = ArtemisDatePipe.timeFormat(this.showTime, this.showSeconds, this.showMilliSeconds);
         return dateFormat + (dateFormat && timeFormat ? ' ' : '') + timeFormat;
     }
 
@@ -144,12 +147,14 @@ export class ArtemisDatePipe implements PipeTransform, OnDestroy {
         return format;
     }
 
-    private static timeFormat(showTime: boolean, showSeconds: boolean): string {
+    private static timeFormat(showTime: boolean, showSeconds: boolean, showMilliSeconds: boolean): string {
         if (!showTime) {
             return '';
         }
         let format = 'HH:mm';
-        if (showSeconds) {
+        if (showMilliSeconds) {
+            format = 'HH:mm:ss.SSS';
+        } else if (showSeconds) {
             format = 'HH:mm:ss';
         }
         return format;

src/main/webapp/i18n/de/buildQueue.json

@@ -74,6 +74,10 @@
                 "daySpan": "1 Tag",
                 "weekSpan": "7 Tage",
                 "monthSpan": "30 Tage"
+            },
+            "logs": {
+                "title": "Build Logs für Job",
+                "download": "Herunterladen"
             }
         }
     }

src/main/webapp/i18n/en/buildQueue.json

@@ -74,6 +74,10 @@
                 "daySpan": "1 day",
                 "weekSpan": "7 days",
                 "monthSpan": "30 days"
+            },
+            "logs": {
+                "title": "Build Logs for Job",
+                "download": "Download"
             }
         }
     }