├── README.md
└── oldest.js


/README.md:
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 1 | OLDEST
 2 | ====
 3 | A bookmarklet to quickly get you to the oldest commit page of a repo.
 4 | 
 5 | ### Overview
 6 | 
 7 | Being able to quickly navigate to the oldest commit page in a repo is quite helpful. Go ahead and drag the [bookmarklet (link)](http://bpceee.github.io/oldest/) onto your bookmark bar and click it whenever you'd like to go to the first commit page of a repo.
 8 | 
 9 | ### Credits
10 | * Inspired by [INIT](https://github.com/FarhadG/init). However there is a limitation on api.github.com calls, so this bookmarklet parses the main page to get the commitID and count.
11 | 
12 | * Use https://mrcoles.com/bookmarklet/ as a bookmarklet creator


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/oldest.js:
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 1 | (([_, repo]) => {
 2 |   const branchElement = document.querySelector("#branch-select-menu > summary > span.css-truncate-target");
 3 |   const branch = branchElement ? branchElement.textContent : 'master';
 4 |   fetch(`https://github.com/${repo}/tree/${branch}`)
 5 |     .then(res => res.text())
 6 |     .then(res => {
 7 |       const mainDocument = new DOMParser().parseFromString(res, 'text/html');
 8 |       let commitCount = mainDocument.evaluate('//span[@class="d-none d-sm-inline"]//strong', mainDocument.body).iterateNext().innerText;
 9 |       commitCount = Number(commitCount.trim().replaceAll(',', ''));
10 |       const commitId = mainDocument
11 |         .evaluate('//*[@class="f6 Link--secondary text-mono ml-2 d-none d-lg-inline"]', mainDocument.body)
12 |         .iterateNext()
13 |         .getAttribute("href")
14 |         .split('/')
15 |         .pop();
16 |       const url = `https://github.com/${repo}/commits/${branch}?after=${commitId}+${commitCount-10}`;
17 |       window.location = url;
18 |   })
19 | })(window.location.pathname.match(/\/([^\/]+\/[^\/]+)(?:\/(?:tree|commits|blob)\/([^\/]+))?/));
20 | 


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