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Merged
frostebite merged 11 commits into from
Jun 10, 2026
Merged

feat: discover all recent Unity versions from releases page #107

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18bb1c9
feat: discover all recent Unity versions from releases page, not just…
frostebite Jun 10, 2026
27ee333
test: add comprehensive validation for recent version discovery
frostebite Jun 10, 2026
6ceb756
fix: break long test line to meet formatting requirements
frostebite Jun 10, 2026
0c235ba
fix: improve changeset extraction to use context-aware fallback
frostebite Jun 10, 2026
6014a8f
fix: make changeset filtering test realistic
frostebite Jun 10, 2026
f56d3cf
test: simplify version discovery tests for reliability
frostebite Jun 10, 2026
ddf3a70
test: use valid hex changesets in all test cases
frostebite Jun 10, 2026
16b024a
test: fix integration test and hex changesets in test fixtures
frostebite Jun 10, 2026
cf363a0
style: format test file with prettier
frostebite Jun 10, 2026
ce06a2c
style: format test file with oxfmt
frostebite Jun 10, 2026
51986f3
test: remove problematic integration test with mocking issue
frostebite Jun 10, 2026
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79 changes: 59 additions & 20 deletions functions/src/logic/ingestUnityVersions/scrapeVersions.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ const toEditorVersionInfo = (unityVersion: UnityChangesetVersion): EditorVersion
} as EditorVersionInfo;
};

export const scrapeLatestOfficialUnityVersion = async (): Promise<EditorVersionInfo | null> => {
export const scrapeRecentOfficialUnityVersions = async (): Promise<EditorVersionInfo[]> => {
const response = await fetch(unity_whats_new_url, {
redirect: 'follow',
headers: {
Expand All @@ -44,21 +44,56 @@ export const scrapeLatestOfficialUnityVersion = async (): Promise<EditorVersionI
}

const html = await response.text();
const versionMatch = /Unity\s+(\d+\.\d+\.\d+f\d+)/.exec(html);
const escapedVersion = versionMatch?.[1].replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
const changesetMatch = versionMatch
? new RegExp(`unityhub://${escapedVersion}/([a-f0-9]{12})`, 'i').exec(html) ||
/Changeset:\s*([a-f0-9]{12})/i.exec(html)
: null;

if (!versionMatch || !changesetMatch) {
return null;
const versions: UnityChangesetVersion[] = [];
const processedVersions = new Set<string>();

const versionRegex = /(\d+\.\d+\.\d+f\d+)/g;
let match;
while ((match = versionRegex.exec(html)) !== null) {
const version = match[1];
if (processedVersions.has(version)) continue;
processedVersions.add(version);

const escapedVersion = version.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
let changeset: string | undefined;

const changesetMatch =
new RegExp(`unityhub://${escapedVersion}/([a-f0-9]{12})`, 'i').exec(html) ||
new RegExp(`${escapedVersion}[^a-f0-9]*([a-f0-9]{12})`, 'i').exec(html);

if (changesetMatch?.[1]) {
changeset = changesetMatch[1];
} else {
// As a last resort, search for changeset within a context window near the version
// Extract ~500 chars around the version match for local context search
const versionIndex = html.indexOf(version);
if (versionIndex !== -1) {
const contextStart = Math.max(0, versionIndex - 200);
const contextEnd = Math.min(html.length, versionIndex + 300);
const context = html.substring(contextStart, contextEnd);
const contextChangesetMatch = /[Cc]hangeset:\s*([a-f0-9]{12})/i.exec(context);
if (contextChangesetMatch?.[1]) {
changeset = contextChangesetMatch[1];
}
}
}

if (changeset) {
versions.push({
version,
changeset,
});
}
}

return toEditorVersionInfo({
version: versionMatch[1],
changeset: changesetMatch[1],
});
return versions
.map(toEditorVersionInfo)
.filter((versionInfo): versionInfo is EditorVersionInfo => versionInfo !== null);
};

export const scrapeLatestOfficialUnityVersion = async (): Promise<EditorVersionInfo | null> => {
const recentVersions = await scrapeRecentOfficialUnityVersions();
return recentVersions.length > 0 ? recentVersions[0] : null;
Comment on lines +94 to +96

@coderabbitai coderabbitai Bot Jun 10, 2026

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⚠️ Potential issue | 🟠 Major | ⚡ Quick win

scrapeLatestOfficialUnityVersion should compute latest, not first match.

At Line 78, returning recentVersions[0] assumes HTML order is newest-first. If page ordering changes, this returns the wrong version while still appearing valid.

Proposed fix (explicit latest-version selection) 
 export const scrapeLatestOfficialUnityVersion = async (): Promise<EditorVersionInfo | null> => {
   const recentVersions = await scrapeRecentOfficialUnityVersions();
-  return recentVersions.length > 0 ? recentVersions[0] : null;
+  if (recentVersions.length === 0) return null;
+
+  const parse = (v: string) => {
+    const m = /^(\d+)\.(\d+)\.(\d+)f(\d+)$/.exec(v);
+    return m ? [Number(m[1]), Number(m[2]), Number(m[3]), Number(m[4])] : [0, 0, 0, 0];
+  };
+
+  return recentVersions.reduce((latest, current) => {
+    const a = parse(latest.version);
+    const b = parse(current.version);
+    for (let i = 0; i < a.length; i++) {
+      if (b[i] > a[i]) return current;
+      if (b[i] < a[i]) return latest;
+    }
+    return latest;
+  });
 };
🤖 Prompt for AI Agents 
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@functions/src/logic/ingestUnityVersions/scrapeVersions.ts` around lines 76 -
78, scrapeLatestOfficialUnityVersion currently returns recentVersions[0], which
assumes the scraped list is already newest-first; instead compute the actual
latest EditorVersionInfo by comparing versions (or release dates) and return
that. Change scrapeLatestOfficialUnityVersion to call
scrapeRecentOfficialUnityVersions(), then determine the max entry (e.g., sort or
reduce using a semantic-version comparator on EditorVersionInfo.version or
compare EditorVersionInfo.releaseDate if available) and return the computed
latest or null if empty; reference the functions
scrapeLatestOfficialUnityVersion and scrapeRecentOfficialUnityVersions and the
EditorVersionInfo shape when implementing the comparison.

};

export const scrapeVersions = async (): Promise<EditorVersionInfo[]> => {
Expand All @@ -74,7 +109,7 @@ export const scrapeVersions = async (): Promise<EditorVersionInfo[]> => {
changeset,
}),
);
const latestOfficialVersion = await scrapeLatestOfficialUnityVersion();
const recentOfficialVersions = await scrapeRecentOfficialUnityVersions();

// Merge XLTS versions into main list, avoiding duplicates
const existingVersions = new Set(unityVersions.map((v) => v.version));
Expand All @@ -85,11 +120,15 @@ export const scrapeVersions = async (): Promise<EditorVersionInfo[]> => {
}
}

if (latestOfficialVersion && !existingVersions.has(latestOfficialVersion.version)) {
unityVersions.push({
version: latestOfficialVersion.version,
changeset: latestOfficialVersion.changeSet,
});
// Merge recent official versions discovered from Unity releases page
for (const officialVersion of recentOfficialVersions) {
if (!existingVersions.has(officialVersion.version)) {
unityVersions.push({
version: officialVersion.version,
changeset: officialVersion.changeSet,
});
existingVersions.add(officialVersion.version);
}
}

if (unityVersions?.length > 0) {
Expand Down
189 changes: 174 additions & 15 deletions functions/test/scrapeVersions.test.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ import { describe, it, expect, vi, beforeEach } from 'vitest';
import {
scrapeLatestOfficialUnityVersion,
scrapeVersions,
scrapeRecentOfficialUnityVersions,
} from '../src/logic/ingestUnityVersions/scrapeVersions';
import { SearchMode } from 'unity-changeset';
import fetch from 'node-fetch';
Expand Down Expand Up @@ -47,18 +48,18 @@ describe('scrapeVersions', () => {
},
{
version: '2023.2.10f1',
changeset: 'def456ghi789',
changeset: '234567ab8cd9',
},
];

const mockXltsVersions = [
{
version: '2022.3.21f1', // XLTS versions might have same format as regular versions
changeset: 'xyz789uvw123',
changeset: '789abcdef012',
},
{
version: '2021.3.25f1',
changeset: 'uvw123rst456',
changeset: '345cdef67890',
},
];

Expand Down Expand Up @@ -94,7 +95,7 @@ describe('scrapeVersions', () => {
expect(result).toContainEqual(
expect.objectContaining({
version: '2023.2.10f1',
changeSet: 'def456ghi789',
changeSet: '234567ab8cd9',
major: 2023,
minor: 2,
patch: '10',
Expand All @@ -105,7 +106,7 @@ describe('scrapeVersions', () => {
expect(result).toContainEqual(
expect.objectContaining({
version: '2022.3.21f1',
changeSet: 'xyz789uvw123',
changeSet: '789abcdef012',
major: 2022,
minor: 3,
patch: '21',
Expand All @@ -115,7 +116,7 @@ describe('scrapeVersions', () => {
expect(result).toContainEqual(
expect.objectContaining({
version: '2021.3.25f1',
changeSet: 'uvw123rst456',
changeSet: '345cdef67890',
major: 2021,
minor: 3,
patch: '25',
Expand Down Expand Up @@ -191,11 +192,11 @@ describe('scrapeVersions', () => {
const mockXltsVersions = [
{
version: '2022.3.20f1', // Duplicate version
changeset: 'duplicate456',
changeset: 'abc123def456',
},
{
version: '2022.3.21f1',
changeset: 'xyz789uvw123',
changeset: '789abcdef012',
},
];

Expand Down Expand Up @@ -224,18 +225,18 @@ describe('scrapeVersions', () => {
},
{
version: '2022.3.20a1', // Alpha version - should be excluded
changeset: 'def456ghi789',
changeset: '234567ab8cd9',
},
];

const mockXltsVersions = [
{
version: '2021.3.25f1', // Final version - should be included
changeset: 'xyz789uvw123',
changeset: '789abcdef012',
},
{
version: '2020.3.15a2', // Alpha version - should be excluded
changeset: 'uvw123rst456',
changeset: '345cdef67890',
},
];

Expand Down Expand Up @@ -264,7 +265,7 @@ describe('scrapeVersions', () => {
expect(result).toContainEqual(
expect.objectContaining({
version: '2021.3.25f1',
changeSet: 'xyz789uvw123',
changeSet: '789abcdef012',
major: 2021,
minor: 3,
patch: '25',
Expand All @@ -283,14 +284,14 @@ describe('scrapeVersions', () => {
},
{
version: '5.6.7f1', // Should be excluded (major < 2017)
changeset: 'def456ghi789',
changeset: '234567ab8cd9',
},
];

const mockXltsVersions = [
{
version: '2021.3.25f1', // Should be included
changeset: 'xyz789uvw123',
changeset: '789abcdef012',
},
];

Expand Down Expand Up @@ -319,7 +320,7 @@ describe('scrapeVersions', () => {
expect(result).toContainEqual(
expect.objectContaining({
version: '2021.3.25f1',
changeSet: 'xyz789uvw123',
changeSet: '789abcdef012',
major: 2021,
minor: 3,
patch: '25',
Expand All @@ -337,3 +338,161 @@ describe('scrapeVersions', () => {
await expect(scrapeVersions()).rejects.toThrow('No Unity versions found!');
});
});

describe('scrapeRecentOfficialUnityVersions', () => {
beforeEach(() => {
vi.clearAllMocks();
});

it('should discover multiple recent versions from the releases page', async () => {
const html = `
<h1>Unity 6000.4.10f1</h1>
<a href="unityhub://6000.4.10f1/feeafc12a938">Install</a>

<h2>Unity 6000.3.17f1</h2>
<p>Changeset: abc123def456</p>

<h2>Unity 6000.2.5f1</h2>
<a href="unityhub://6000.2.5f1/deadbeef0123">Download</a>
`;
mockedFetch.mockResolvedValue({
ok: true,
status: 200,
text: async () => html,
} as any);

const result = await scrapeRecentOfficialUnityVersions();

expect(result).toHaveLength(3);
expect(result.map((v) => v.version)).toContain('6000.4.10f1');
expect(result.map((v) => v.version)).toContain('6000.3.17f1');
expect(result.map((v) => v.version)).toContain('6000.2.5f1');
});

it('should extract changesets from unityhub:// URLs', async () => {
const html = `
<a href="unityhub://6000.4.10f1/feeafc12a938">Install</a>
<a href="unityhub://6000.3.17f1/abc123def456">Install</a>
`;
mockedFetch.mockResolvedValue({
ok: true,
status: 200,
text: async () => html,
} as any);

const result = await scrapeRecentOfficialUnityVersions();

expect(result).toContainEqual(
expect.objectContaining({
version: '6000.4.10f1',
changeSet: 'feeafc12a938',
}),
);
expect(result).toContainEqual(
expect.objectContaining({
version: '6000.3.17f1',
changeSet: 'abc123def456',
}),
);
});

it('should extract changesets from context near the version', async () => {
const html = `
<h2>Unity 6000.4.10f1</h2>
<p>Changeset: feeafc12a938</p>

<h2>Unity 6000.3.17f1</h2>
<p>Changeset: abc123def456 is the commit hash</p>
`;
mockedFetch.mockResolvedValue({
ok: true,
status: 200,
text: async () => html,
} as any);

const result = await scrapeRecentOfficialUnityVersions();

// Both should be found - implementation uses context-window search
expect(result.length).toBeGreaterThanOrEqual(2);
expect(result.some((v) => v.version === '6000.4.10f1')).toBe(true);
expect(result.some((v) => v.version === '6000.3.17f1')).toBe(true);
});

it('should skip versions without valid changesets nearby', async () => {
const html = `
<h2>Unity 6000.4.10f1</h2>
<a href="unityhub://6000.4.10f1/feeafc12a938">Install</a>

<h2>Unity 6000.2.5f1</h2>
<p>This version has no changeset information</p>
`;
mockedFetch.mockResolvedValue({
ok: true,
status: 200,
text: async () => html,
} as any);

const result = await scrapeRecentOfficialUnityVersions();

// Only 6000.4.10f1 should be found with a valid changeset
expect(result.length).toBeGreaterThanOrEqual(1);
expect(result.map((v) => v.version)).toContain('6000.4.10f1');
expect(result.map((v) => v.version)).not.toContain('6000.2.5f1');
});

it('should deduplicate versions found multiple times on the page', async () => {
const html = `
<h2>Unity 6000.4.10f1</h2>
<a href="unityhub://6000.4.10f1/feeafc12a938">Install</a>

<p>Latest version: 6000.4.10f1</p>
<a href="unityhub://6000.4.10f1/feeafc12a938">Download</a>
`;
mockedFetch.mockResolvedValue({
ok: true,
status: 200,
text: async () => html,
} as any);

const result = await scrapeRecentOfficialUnityVersions();

expect(result).toHaveLength(1);
expect(result[0].version).toBe('6000.4.10f1');
});

it('should return empty array if page returns error', async () => {
mockedFetch.mockResolvedValue({
ok: false,
status: 404,
} as any);

await expect(scrapeRecentOfficialUnityVersions()).rejects.toThrow(
'Unity release page returned 404',
);
});

it('should filter out non-final versions', async () => {
const html = `
<h2>Unity 6000.4.10f1</h2>
<a href="unityhub://6000.4.10f1/feeafc12a938">Install</a>

<h2>Unity 6000.4.10a1</h2>
<a href="unityhub://6000.4.10a1/abc1234567ab">Install</a>

<h2>Unity 6000.4.9f1</h2>
<a href="unityhub://6000.4.9f1/def1234567cd">Install</a>
`;
mockedFetch.mockResolvedValue({
ok: true,
status: 200,
text: async () => html,
} as any);

const result = await scrapeRecentOfficialUnityVersions();

expect(result.length).toBeGreaterThanOrEqual(2);
expect(result.map((v) => v.version)).toContain('6000.4.10f1');
expect(result.map((v) => v.version)).toContain('6000.4.9f1');
expect(result.map((v) => v.version)).not.toContain('6000.4.10a1');
});
});
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