BUGFIX: Pages Excluded from Collections

README.md

@@ -62,11 +62,11 @@ module.exports = (eleventyConfig) => {
 
 ### Internal Links / Wikilinks
 
-This plugin will now parse all Wiki Links formatted for example, `[[Eleventy.js Interlink Plugin]]` appears as [Eleventy.js Interlink Plugin](https://photogabble.co.uk/projects/eleventyjs-interlink-plugin/).
+This plugin will parse both Wikilinks and internal anchor links. The Wikilink format is a **page reference** wrapped in double square brackets, for example: `[[Eleventy.js Interlink Plugin]]` will appear as [Eleventy.js Interlink Plugin](https://photogabble.co.uk/projects/eleventyjs-interlink-plugin/).
 
 Using the vertical bar (`|`) you can change the text used to display a link. This can be useful when you want to work a link into a sentence without using the title of the file, for example: `[[Eleventy.js Interlink Plugin|custom display text]]` appears as [custom display text](https://www.photogabble.co.uk/projects/eleventyjs-interlink-plugin/).
 
-> NOTE: By default this plugin will use the `title` front-matter attribute of your pages or one of the aliases (as detailed below).
+> **NOTE**: By default this plugin will use the `title` front-matter attribute of your pages or one of the aliases (as detailed below) as the **page reference**.
 
 ### Aliases
 
@@ -144,6 +144,10 @@ You can then display this information in any way you would like, I use the below
 {% endif %}
 ```
 
+### Pages Excluded from Collections
+
+Due to how this plugin obtains a pages template content, all pages with `eleventyExcludeFromCollections:true` set will **NOT** be parsed by the interlinker.
+
 ## Known Caveats
 
 - This plugin doesn't implement all [Obsidians wikilink support](https://help.obsidian.md/Linking+notes+and+files/Internal+links) for example linking to a block in a note and linking to a heading in a note is not currently supported by this plugin

src/interlinker.js

@@ -85,6 +85,8 @@ module.exports = class Interlinker {
     const dependencies = [data.title, data.page, data.collections.all];
     if (dependencies[0] === undefined || !dependencies[1].inputPath || dependencies[2].length === 0) return [];
 
+    this.deadLinks.setFileSrc(data.page.inputPath);
+
     const {slugifyFn} = this.opts;
 
     const compilePromises = [];
@@ -98,8 +100,7 @@ module.exports = class Interlinker {
     const currentSlug = slugifyFn(data.title);
     let currentSlugs = new Set([currentSlug, data.page.fileSlug]);
     const currentPage = pageDirectory.findByFile(data);
-
-    this.deadLinks.setFileSrc(currentPage.inputPath);
+    if (!currentPage) return [];
 
     // Populate our link map for use later in replacing WikiLinks with page permalinks.
     // Pages can list aliases in their front matter, if those exist we should map them

tests/eleventy.test.js

@@ -1,15 +1,13 @@
 const Eleventy = require("@11ty/eleventy");
 const path = require('node:path');
-const {normalize} = require('./helpers');
-const sinon = require('sinon');
+const {normalize, consoleMockMessages, findResultByUrl, fixturePath} = require('./helpers');
 const test = require("ava");
+const sinon = require("sinon");
 
-function findResultByUrl(results, url) {
-  const [result] = results.filter(result => result.url === url);
-  return result;
-}
-
-const fixturePath = (p) => path.normalize(path.join(__dirname, 'fixtures', p));
+// NOTE: Tests using sinon to mock console.warn need to be run with
+// `test.serial` so that they don't run at the same time as one another to
+// avoid the "Attempted to wrap warn which is already wrapped" error.
+// @see https://stackoverflow.com/a/37900956/1225977
 
 test("Sample page (wikilinks and regular links)", async t => {
   let elev = new Eleventy(fixturePath('sample-small-website'), fixturePath('sample-small-website/_site'), {
@@ -31,25 +29,15 @@ test("Sample page (wikilinks and regular links)", async t => {
   );
 });
 
-test("Broken page (wikilinks and regular links)", async t => {
-  const messages = [];
-  const consoleStub = sinon.stub(console, 'warn').callsFake(msg => messages.push());
+test.serial("Broken page (wikilinks and regular links)", async t => {
+  const mock = sinon.stub(console, 'warn');
 
   let elev = new Eleventy(fixturePath('website-with-broken-links'), fixturePath('website-with-broken-links/_site'), {
     configPath: fixturePath('website-with-broken-links/eleventy.config.js'),
   });
 
   let results = await elev.toJSON();
-
-  let logLines = [];
-  for (let i = 0; i < consoleStub.callCount; i++) {
-    const line = normalize(consoleStub.getCall(i).args.join(' '))
-    // Sometimes 11ty will output benchmark info, failing the test randomly.
-    if (line.includes('[11ty]')) continue;
-    logLines.push(line);
-  }
-
-  consoleStub.restore();
+  mock.restore();
 
   // Markdown will have the link href set to /stubs
   t.is(
@@ -63,7 +51,7 @@ test("Broken page (wikilinks and regular links)", async t => {
     `<div>This is to show that we can identify <a href="/broken">broken <em>internal</em> links</a>.</div>`
   );
 
-  t.is(logLines.length, 4, 'console.warn should be called three times');
+  t.is(consoleMockMessages(mock).length, 4, 'console.warn should be called four times');
 });
 
 test("Sample page (markdown with embed)", async t => {
@@ -85,3 +73,28 @@ test("Sample page (markdown with embed)", async t => {
     `<div><p><p>Hello world.</p></p></div><div></div>`
   );
 });
+
+test.serial("Sample page (eleventyExcludeFromCollections set true)", async t => {
+  const mock = sinon.stub(console, 'warn');
+
+  let elev = new Eleventy(fixturePath('sample-with-excluded-file'), fixturePath('sample-with-excluded-file/_site'), {
+    configPath: fixturePath('sample-with-excluded-file/eleventy.config.js'),
+  });
+
+  let results = await elev.toJSON();
+
+  mock.restore();
+  t.is(consoleMockMessages(mock).length, 2, 'console.warn should be called twice');
+
+  // Embedded page is aware of its embedding
+  t.is(
+    normalize(findResultByUrl(results, '/about/').content),
+    `<div><p>This wikilink to <a href="/stubs">something</a> will not parse because the destination has eleventyExcludeFromCollections set true.</p></div><div></div>`
+  );
+
+  // Embed shows
+  t.is(
+    normalize(findResultByUrl(results, '/').content),
+    `<div><p>Hello World, no links, wiki or otherwise will be parsed by the interlinker due to being excluded from collections.</p></div><div></div>`
+  );
+});

tests/fixtures/sample-with-excluded-file/_layouts/default.liquid

@@ -0,0 +1,2 @@
+<div>{{ content }}</div>
+<div>{%- for link in backlinks %}<a href="{{ link.url }}">{{ link.title }}</a>{%- endfor %}</div>

tests/fixtures/sample-with-excluded-file/about.md

@@ -0,0 +1,6 @@
+---
+title: About
+layout: default.liquid
+---
+
+This wikilink to [[something]] will not parse because the destination has eleventyExcludeFromCollections set true.

tests/fixtures/sample-with-excluded-file/eleventy.config.js

@@ -0,0 +1,12 @@
+module.exports = function (eleventyConfig) {
+  eleventyConfig.addPlugin(
+    require('../../../index.js'),
+  );
+
+  return {
+    dir: {
+      includes: "_includes",
+      layouts: "_layouts",
+    }
+  }
+}

tests/fixtures/sample-with-excluded-file/index.md

@@ -0,0 +1,7 @@
+---
+title: Something
+layout: default.liquid
+eleventyExcludeFromCollections: true
+---
+
+Hello World, no links, wiki or otherwise will be parsed by the interlinker due to being excluded from collections.

tests/helpers.js

@@ -1,7 +1,30 @@
+const path = require("node:path");
+
 function normalize(str) {
   return str.trim().replace(/\r?\n|\r/g, '');
 }
 
+function consoleMockMessages(mock) {
+  let logLines = [];
+  for (let i = 0; i < mock.callCount; i++) {
+    const line = normalize(mock.getCall(i).args.join(' '))
+    // Sometimes 11ty will output benchmark info, failing the test randomly.
+    if (line.includes('[11ty]')) continue;
+    logLines.push(line);
+  }
+  return logLines;
+}
+
+function findResultByUrl(results, url) {
+  const [result] = results.filter(result => result.url === url);
+  return result;
+}
+
+const fixturePath = (p) => path.normalize(path.join(__dirname, 'fixtures', p));
+
 module.exports = {
   normalize,
+  consoleMockMessages,
+  findResultByUrl,
+  fixturePath,
 }