Home » Posts tagged "github" (Page 2)

GitHub 上有大量重複的程式碼...

扣除掉 fork 的程式碼後,研究人員在 GitHub 上還是發現有大量重複的程式碼:「DéjàVu: a map of code duplicates on GitHub」。

This paper analyzes a corpus of 4.5 million non-fork projects hosted on GitHub representing over 482 million files written in Java, C++, Python, and JavaScript. We found that this corpus has a mere 85 million unique files.

Java/C++/Python/JavaScript 寫的 4.5M 個專案有 482M 個檔案,但只有 85M 個檔案是不一樣的 XD

想一想其實也是... 現在愈來愈多工具產生程式碼了 XD (i.e. Scaffold)

Microsoft 與 GitHub 合作,將會把 GVFS 移植到 Linux 與 Mac 上

MicrosoftGitHub 合作將本來只有在 Windows 上可以用的 GVFS 移植到 LinuxMac 上:「Microsoft and GitHub team up to take Git virtual file system to macOS, Linux」。

GVFS 是解決微軟內部自己在用 Git 的痛處,因為微軟的 repository 都... 有... 點... 肥... (畢竟有不少產品發展了很久)。

目前 Git 的操作是卡在 I/O 與 memory cache 的限制上:

Also, Git wasn't designed for a codebase that was so large, either in terms of the number of files and version history for each file, or in terms of sheer size, coming in at more than 300GB. When using standard Git, working with the source repository was unacceptably slow. Common operations (such as checking which files have been modified) would take multiple minutes.

GVFS 的想法是有用到的部份再真的去拉,藉此大幅減少 I/O 需求...

GitHub 推出安全通知的功能

剛好是之前推出 Dependency Graph 後可以拿出來善用的利用:「Introducing security alerts on GitHub」,先前提到的 Dependency Graph 則是在「A more connected universe」這邊。

Vulnerability coverage 的部份有提到範圍,至少有公開 CVE 的會納入:

Vulnerabilities that have CVE IDs (publicly disclosed vulnerabilities from the National Vulnerability Database) will be included in security alerts. However, not all vulnerabilities have CVE IDs—even many publicly disclosed vulnerabilities don't have them. We'll continue to get better at identifying vulnerabilities as our security data grows. For more help managing security issues, check out our security partners in the GitHub Marketplace.

然後這系列功能目前只支援 JavaScriptRuby,下一個應該是 Python

The dependency graph and security alerts currently support Javascript and Ruby—with Python support coming in 2018.

在 Mac 上快速換輸入法的方法:Kawa

三月的時候在「在 Mac 上快速切換輸入法」這邊提到了 IMEShortcuts,但有時候還是不會生效...

在「GitHub 中那些不错的免费软件」這篇裡面提到了 open source 的 utatti/kawa 這個專案,裡面有針對 CJKV 輸入法的 bug 提供 workaround,就給個機會測試看看:

There is a known bug in the TIS library of macOS that switching keyboard layouts doesn't work well when done programmatically, especially between complex input sources like CJKV.

而且最近變得可以用 Homebrew 管理了,這樣之後升級比較方便。

GitHub Debug

GitHub 推出工具讓使用者可以方便回報狀態:「GitHub Debug」。

做起來不困難,但等於是讓使用者操作 SOP 先提供一些基本的資訊,讓 GitHub 內部的人在處理時會比較輕鬆。

GitHub 明年關閉 SSH 上 SHA1 相關的 Kx (Key Exchange) 演算法

GitHub 定下落日條款了:「Weak cryptographic standards deprecation update」。

這次目標是 diffie-hellman-group1-sha1diffie-hellman-group14-sha1,同時啟用了 diffie-hellman-group-exchange-sha256

Since the announcement, we have been focusing on the impact of disabling the diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1 key exchanges for SSH. As of last week, we have enabled diffie-hellman-group-exchange-sha256. This key exchange method is widely supported and will allow most legacy clients to seamlessly transition away from diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1.

明年二月拔掉 diffie-hellman-group1-sha1diffie-hellman-group14-sha1

This is a very small percentage of traffic, but we would like to see if we can reduce the incompatible traffic percentage even further before disabling support for the older key exchange algorithms on February 1, 2018.

IBM 把自家的 JVM 貢獻出來:Eclipse OpenJ9

IBM 把自家的 JVM 貢獻出來,與 Eclipse 合作,一起推出了 OpenJ9 (原名 IBM J9)。程式碼可以在 GitHub 上的 eclipse/openj9 取得。


Low memory footprint. Fast start-up time. High application throughput. Optimized to run Java applications cost-effectively in the cloud.

應該會有人包 PPA 吧,之後跑 Java 程式可以拿來用看看...

透過 DMCA takedown notice 非法下掉 Easylist 內的過濾條件

參考「Ad blocking is under attack」這邊,有業主 functionalclam.com 透過 DMCA takedown notice 發信要求 Easylist 移除過濾條件 (參考「2017-08-02-LevenLabs.md」),對應的 commit 參考「M: Removed due to DMCA takedown request」) 這邊。

這件事情再次證實了 DMCA takedown notice 被濫用的情況,明明不是侵權的情況卻被拿來濫用 (因為對原提出者唯一的處罰必須過反過來提告,然後要得自己舉證因為這樣受損)。

目前看起來 EFF 願意介入,就來看看後續了。