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Add the first function and some basic tests

ID
05e1ec4
date
2025-01-25 17:04:21+00:00
author
Alex Chan <alex@alexwlchan.net>
parent
6d4ef46
message
Add the first function and some basic tests
changed files
11 files, 1354 additions, 13 deletions

Changed files

.github/workflows/test.yml (0 → 498)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..7678715
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,31 @@
+name: Run tests
+
+on:
+  push:
+    branches:
+    - main
+
+  pull_request:
+    branches:
+    - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 23
+        cache: npm
+        cache-dependency-path: package-lock.json
+
+    - name: Install dependencies
+      run: npm install
+
+    - name: Check formatting
+      run: npx eslint static/app.js
+
+    - name: Run JavaScript tests
+      run: npm test

.gitignore (14 → 28)

diff --git a/.gitignore b/.gitignore
index 4263e06..c3f71ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 *.epub
 *.mobi
+
+node_modules

eslint.config.mjs (0 → 285)

diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 0000000..dc09c76
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,16 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+  {
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        module: 'writable'
+      }
+    }
+  },
+  pluginJs.configs.recommended,
+];
\ No newline at end of file

index.html (1816 → 2915)

diff --git a/index.html b/index.html
index fb9b5a1..f77e722 100644
--- a/index.html
+++ b/index.html
@@ -7,6 +7,12 @@
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
 
   <script src="static/jszip.min.js"></script>
+
+  <style>
+    #results {
+      display: none;
+    }
+  </style>
 </head>
 
 <body>
@@ -42,6 +48,20 @@
     <script>
       const uploadForm = document.querySelector("#uploadForm");
 
+      function reportError(message) {
+        document.querySelector('#results').style.display = 'block';
+
+        document.querySelector('#results ul').innerHTML +=
+          `<li><strong>Something went wrong:</strong> ${message}</li>`;
+      }
+
+      function reportSuccess(message) {
+        document.querySelector('#results').style.display = 'block';
+
+        document.querySelector('#results ul').innerHTML +=
+          `<li><strong>Something worked:</strong> ${message}</li>`;
+      }
+
       uploadForm
         .addEventListener("submit", function(event) {
           // Clicking the button shouldn't submit the form; we do all
@@ -51,22 +71,39 @@
           // Get the epub file from the file input.
           const file = uploadForm.querySelector('input[type="file"]').files[0];
           console.debug(`Got file ${file}`);
+
+          // Find the `content
+          JSZip.loadAsync(file)
+            .then(function(zip) {
+              // Find the `content.opf` file, which contains some
+              // XML metadata about this ePub.
+              document.querySelector('main').innerHTML += JSON.stringify(Object.keys(zip.files));
+
+              const contentOpfPath =
+                Object.keys(zip.files)
+                  .find(f =>
+                    f === 'content.opf' || f.endsWith('/content.opf')
+                  );
+
+              if (typeof contentOpfPath === 'undefined') {
+                reportError(`Unable to find content.opf in this ePub!`);
+                return;
+              }
+
+              reportSuccess(`Found content.opf: ${contentOpfPath}`)
+            })
+            .catch(function(error) {
+              reportError(`Unable to read ePub file: ${error}`);
+            });
         });
     </script>
 
-    <p>
-      <!--
-        These repeated alphabets are here to help me judge line lengths
-        once I've selected fonts -- I typically aim for between 2½ to 3½
-        alphabets on a line.
-      -->
-      abcdefghijklm nopqrstuvwxyz
-      abcdefghijklm nopqrstuvwxyz
-      abcdefghijklm nopqrstuvwxyz
-      abcdefghijklm nopqrstuvwxyz
-      abcdefghijklm nopqrstuvwxyz
-      abcdefghijklm nopqrstuvwxyz
-    </p>
+    <div id="results">
+      <p>Results:</p>
+
+      <ul>
+      </ul>
+    </div>
   </main>
 
   <footer>

package-lock.json (0 → 40541)

diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..000ea3c
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1148 @@
+{
+  "name": "add-cover-to-ao3-epubs",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "devDependencies": {
+        "@eslint/js": "^9.19.0",
+        "eslint": "^9.19.0",
+        "globals": "^15.14.0",
+        "qunit": "^2.24.0"
+      }
+    },
+    "node_modules/@eslint-community/eslint-utils": {
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/@eslint-community/eslint-utils/-/eslint-utils-4.4.1.tgz",
+      "integrity": "sha512-s3O3waFUrMV8P/XaF/+ZTp1X9XBZW1a4B97ZnjQF2KYWaFD2A8KyFBsrsfSjEmjn3RGWAIuvlneuZm3CUK3jbA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "eslint-visitor-keys": "^3.4.3"
+      },
+      "engines": {
+        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/eslint"
+      },
+      "peerDependencies": {
+        "eslint": "^6.0.0 || ^7.0.0 || >=8.0.0"
+      }
+    },
+    "node_modules/@eslint-community/eslint-utils/node_modules/eslint-visitor-keys": {
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-3.4.3.tgz",
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+      "license": "Apache-2.0",
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+      "funding": {
+        "url": "https://opencollective.com/eslint"
+      }
+    },
+    "node_modules/@eslint-community/regexpp": {
+      "version": "4.12.1",
+      "resolved": "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.12.1.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
+      }
+    },
+    "node_modules/@eslint/config-array": {
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+        "debug": "^4.3.1",
+        "minimatch": "^3.1.2"
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+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@types/json-schema": "^7.0.15"
+      },
+      "engines": {
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+      }
+    },
+    "node_modules/@eslint/eslintrc": {
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+      },
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+      },
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+      "license": "MIT",
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+    "node_modules/prelude-ls": {
+      "version": "1.2.1",
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+      "license": "MIT",
+      "engines": {
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+      "license": "MIT",
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+    "node_modules/qunit": {
+      "version": "2.24.0",
+      "resolved": "https://registry.npmjs.org/qunit/-/qunit-2.24.0.tgz",
+      "integrity": "sha512-i+rJThg6YxrIAywbcS0Qr/KEO6bBH92LOeuTNC0dfFR2FbdtonVm6LQHDGwz/BB1fOuFSaE4+FEmNbxnxl+OFg==",
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+      "license": "MIT",
+      "dependencies": {
+        "commander": "7.2.0",
+        "node-watch": "0.7.3",
+        "tiny-glob": "0.2.9"
+      },
+      "bin": {
+        "qunit": "bin/qunit.js"
+      },
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+      }
+    },
+    "node_modules/resolve-from": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
+      "integrity": "sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "shebang-regex": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
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+      "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/strip-json-comments": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.1.tgz",
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+      },
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+      "dev": true,
+      "license": "MIT",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "prelude-ls": "^1.2.1"
+      },
+      "engines": {
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+      }
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+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
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+      "dev": true,
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "punycode": "^2.1.0"
+      }
+    },
+    "node_modules/which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
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+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "node-which": "bin/node-which"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/word-wrap": {
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
+      "integrity": "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/yocto-queue": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
+      "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    }
+  }
+}

package.json (0 → 175)

diff --git a/package.json b/package.json
new file mode 100644
index 0000000..26aa463
--- /dev/null
+++ b/package.json
@@ -0,0 +1,11 @@
+{
+  "devDependencies": {
+    "@eslint/js": "^9.19.0",
+    "eslint": "^9.19.0",
+    "globals": "^15.14.0",
+    "qunit": "^2.24.0"
+  },
+  "scripts": {
+    "test": "qunit"
+  }
+}

static/app.js (0 → 546)

diff --git a/static/app.js b/static/app.js
new file mode 100644
index 0000000..c2eeda6
--- /dev/null
+++ b/static/app.js
@@ -0,0 +1,23 @@
+/* The `content.opf` file contains XML metadata about an ePub file.
+ *
+ * Look inside an ePub file unpacked by JSZip, and return the path
+ * to the `content.opf` file it contains (if any).
+ *
+ * This returns the path, or `null` if there's no such file in
+ * the ePub.
+ */
+function findContentOpfPath(zip) {
+  const path =
+    Object.keys(zip.files)
+      .find(f =>
+        f === 'content.opf' || f.endsWith('/content.opf')
+      );
+  
+  return path || null;
+}
+
+
+
+if (typeof module !== 'undefined') {
+  module.exports = { findContentOpfPath };
+}

test/app.js (0 → 2023)

diff --git a/test/app.js b/test/app.js
new file mode 100644
index 0000000..43f72ae
--- /dev/null
+++ b/test/app.js
@@ -0,0 +1,73 @@
+const { findContentOpfPath } = require('../static/app.js')
+const JSZip = require('../static/jszip.min.js');
+
+const fs = require("fs");
+
+
+
+QUnit.module('findContentOpfPath');
+
+QUnit.test('it finds a file at the top level', (assert) => {
+    const done = assert.async();
+
+    // This test file was made with the following commands:
+    //
+    //    $ touch content.opf
+    //    $ zip example1.zip content.opf
+    //
+    fs.readFile("test/fixtures/example1.zip", function(err, data) {
+        if (err) throw err;
+        JSZip.loadAsync(data).then(function(zip) {
+            assert.equal(
+                findContentOpfPath(zip), 'content.opf'
+            );
+            done();
+        }).catch(function(err) {
+            throw err;
+        });
+    });
+});
+
+QUnit.test('it finds a file in a nested folder', (assert) => {
+    const done = assert.async();
+
+    // This test file was made with the following commands:
+    //
+    //    $ mkdir subdir
+    //    $ touch subdir/content.opf
+    //    $ zip example2.zip subdir/content.opf
+    //
+    fs.readFile("test/fixtures/example2.zip", function(err, data) {
+        if (err) throw err;
+        JSZip.loadAsync(data).then(function(zip) {
+            assert.equal(
+                findContentOpfPath(zip), 'subdir/content.opf'
+            );
+            done();
+        }).catch(function(err) {
+            throw err;
+        });
+    });
+});
+
+QUnit.test('it returns `null` if there’s no matching file', (assert) => {
+    const done = assert.async();
+    
+    // This test file was made with the following commands:
+    //
+    //    $ mkdir subdir
+    //    $ touch subdir/content.opf
+    //    $ zip example2.zip subdir/content.opf
+    //
+    fs.readFile("test/fixtures/example3.zip", function(err, data) {
+        if (err) throw err;
+        JSZip.loadAsync(data).then(function(zip) {
+            assert.equal(
+                findContentOpfPath(zip), null
+            );
+            done();
+        }).catch(function(err) {
+            throw err;
+        });
+    });
+});

test/fixtures/example1.zip (0 → 172)

diff --git a/test/fixtures/example1.zip b/test/fixtures/example1.zip
new file mode 100644
index 0000000..0020a87
Binary files /dev/null and b/test/fixtures/example1.zip differ

test/fixtures/example2.zip (0 → 186)

diff --git a/test/fixtures/example2.zip b/test/fixtures/example2.zip
new file mode 100644
index 0000000..85f6c4b
Binary files /dev/null and b/test/fixtures/example2.zip differ

test/fixtures/example3.zip (0 → 174)

diff --git a/test/fixtures/example3.zip b/test/fixtures/example3.zip
new file mode 100644
index 0000000..f7a429a
Binary files /dev/null and b/test/fixtures/example3.zip differ