Use Git commit message to store the short URL on GitHub, host the redirector on GitHub Pages
This interesting tool is from the article: https://www.v2ex.com/t/1105845
| branch | description |
|---|---|
page |
404.html redirector |
url |
store URLs |
The GitHub API currently(2025.2.1) allows the request to specify the Git commit in two simpler ways than the full SHA-1 hash 9fc3741bbf92219dd53278f447e124d2d3fdf5df:
- use the SHA-1 hash prefix(at least 4 characters)
eg: https://liqwang.github.io/link/9fc3⚠️ The 4-prefix may not work when the commit count of a repo exceeds a certain condition, for example:
Git commit: https://github.com/microsoft/vscode/commit/92f0b764f84bb5c4c5495266e12fca80e47bba86
❌(4-prefix) https://api.github.com/repos/microsoft/vscode/commits/92f0
✔️(7-prefix) https://api.github.com/repos/microsoft/vscode/commits/92f0b76 - use a custom tag name of the Git commit
eg: https://liqwang.github.io/link/bitcoin-3b1b
It's impossible to redirect the short URL using index.html on GitHub Pages, because it only serves the root path /, other requests will respond 404.html
---
config:
theme: neutral
mirrorActors: false
---
sequenceDiagram
%% autonumber
Broswer ->>+ liqwang.github.io: GET /9fc3
liqwang.github.io ->>- Broswer: 404.html
Broswer ->>+ api.github.com: GET /commits/9fc3
api.github.com ->>- Broswer: target URL
Broswer ->> target website: redirect
- Use IndexedDB or localStorage to cache the target URL in the client browser, which can reduce the invocations of GitHub API