Link mirrors for release/stable-build downloads in build websites

Author: HannesWell

sites/eclipse/build/index.html

@@ -245,6 +245,7 @@ <h3 id="swt">SWT Binary and Source
 			}
 
 			// Inject resource files
+			const mirrorPrefix = getArtifactMirrorPrefix()
 			const dataTables = Array.from(mainElement.getElementsByClassName('files-table'))
 			for (const table of dataTables) {
 				const dataPath = table.getAttribute('data-path')
@@ -262,12 +263,11 @@ <h3 id="swt">SWT Binary and Source
 					tBody.insertRow().innerHTML = `
 					<td>${file.platform ? file.platform : getPlatformLabel(file.name)}</td>
 					<td>
-						<a href="${file.name}">${file.name}</a>
+						<a href="${mirrorPrefix}${file.name}">${file.name}</a>
 					</td>
 					<td>${file.size}</td>
 					<td>${appendCopyContentButton(`<code class="single-line-truncate file-hash-value" title="SHA512 hash of file: ${file.sha512}">${file.sha512}</code>`, 'SHA512 checksum')}</td>
 					`
-					//TODO: Implement mirror-selection (but https://www.eclipse.org/downloads/download.php?file=eclipse/downloads/drops4/${build.identifier}/${file.name} doesn't work, not even for releases)
 				}
 			}
 		}

sites/eclipse/page.js

@@ -210,6 +210,17 @@ function injectUnstableBuildCause(buildStateContainerId) {
     })
 }
 
+function getArtifactMirrorPrefix() {
+    const id = getIdentifierFromSiteLocation()
+    // No mirroring for I/Y-build artifacts or when not on the eclipse storage server
+    if (id && !(id.startsWith('I') || id.startsWith('Y'))) {
+        const pathname = window.location.pathname
+        const pagePath = pathname.endsWith('/') ? pathname : pathname + '/'
+        return `https://www.eclipse.org/downloads/download.php?file=${pagePath}`
+    }
+    return ''
+}
+
 function fetchAllJSON(urls) {
     const promises = urls.map(url => fetch(url).then(res => {
         if (res.status == 404) {

sites/equinox/build/index.html

@@ -79,6 +79,7 @@ <h3 id="other">Other Information</h3>
 			document.getElementById('build-timestamp').innerHTML = `<b>${formatBuildDate(build.timestamp)} (UTC)</b>`
 
 			// Inject resource files
+			const mirrorPrefix = getArtifactMirrorPrefix()
 			const dataTables = Array.from(mainElement.getElementsByClassName('files-table'))
 			for (const table of dataTables) {
 				const dataPath = table.getAttribute('data-path')
@@ -87,12 +88,11 @@ <h3 id="other">Other Information</h3>
 				for (const file of filesData) {
 					tBody.insertRow().innerHTML = `
 					<td width="75%">
-						<a href="${file.name}">${file.name}</a>
+						<a href="${mirrorPrefix}${file.name}">${file.name}</a>
 					</td>
 					<td width="10%">${file.size}</td>
 					<td width="15%">${appendCopyContentButton(`<code class="single-line-truncate file-hash-value" title="SHA512 hash of file: ${file.sha512}">${file.sha512}</code>`, 'SHA512 checksum')}</td>
 					`
-					//TODO: Implement mirror-selection (but https://www.eclipse.org/downloads/download.php?file=equinox/drops/${build.identifier}/${file.name} doesn't work, not even for releases)
 				}
 			}
 		}