diff --git a/sources/tech/20200628 entr- rerun your build when files change.md b/sources/tech/20200628 entr- rerun your build when files change.md deleted file mode 100644 index 03dfddd348..0000000000 --- a/sources/tech/20200628 entr- rerun your build when files change.md +++ /dev/null @@ -1,101 +0,0 @@ -[#]: collector: (lujun9972) -[#]: translator: (geekpi) -[#]: reviewer: ( ) -[#]: publisher: ( ) -[#]: url: ( ) -[#]: subject: (entr: rerun your build when files change) -[#]: via: (https://jvns.ca/blog/2020/06/28/entr/) -[#]: author: (Julia Evans https://jvns.ca/) - -entr: rerun your build when files change -====== - -This is going to be a pretty quick post – I found out about [`entr`][1] relatively recently and I felt like WHY DID NOBODY TELL ME ABOUT THIS BEFORE?!?! So I’m telling you about it in case you’re in the same boat as I was. - -There’s a great explanation of the tool with lots of examples on [entr’s website][1]. - -The summary is in the headline: `entr` is a command line tool that lets you run a arbitrary command every time you change any of a set of specified files. You pass it the list of files to watch on stdin, like this: - -``` -git ls-files | entr bash my-build-script.sh -``` - -or - -``` -find . -name *.rs | entr cargo test -``` - -or whatever you want really. - -### quick feedback is amazing - -Like possibly every single programmer in the universe, I find it Very Annoying to have to manually rerun my build / tests every time I make a change to my code. - -A lot of tools (like hugo and flask) have a built in system to automatically rebuild when you change your files, which is great! - -But often I have some hacked together custom build process that I wrote myself (like `bash build.sh`), and `entr` lets me have a magical build experience where I get instant feedback on whether my change fixed the weird bug with just one line of bash. Hooray! - -### restart a server (`entr -r`) - -Okay, but what if you’re running a server, and the server needs to be restarted every time you? entr’s got you – if you pass `-r`, then - -``` -git ls-files | entr -r python my-server.py -``` - -### clear the screen (`entr -c`) - -Another neat flag is `-c`, which lets you clear the screen before rerunning the command, so that you don’t get distracted/confused by the previous build’s output. - -### use it with `git ls-files` - -Usually the set of files I want to track is about the same list of files I have in git, so `git ls-files` is a natural thing to pipe to `entr`. - -I have a project right now where sometimes I have files that I’ve just created that aren’t in git just yet. So what if you want to include untracked files? Here’s a little bash incantation I put together that does this: - -``` -{ git ls-files; git ls-files . --exclude-standard --others; } | entr your-build-scriot -``` - -There’s probably a way to do this with just one git command but I don’t know what it is. - -### restart every time a new file is added: `entr -d` - -The other problem with this `git ls-files` thing is that sometimes I add a new file, and of course it’s not in git yet. entr has a nice feature for this – if you pass `-d`, then if you add a new file in any of the directories entr is tracking, then it’ll exit. - -I’m using this paired with a little while loop that will restart `entr` to include the new files, like this: - -``` -while true -do -{ git ls-files; git ls-files . --exclude-standard --others; } | entr -d your-build-scriot -done -``` - -### how entr works on Linux: inotify - -On Linux, entr works using `inotify` (a system for tracking filesystem events like file changes) – if you strace it, you’ll see an `inotify_add_watch` system call for each file you ask it to watch, like this: - -``` -inotify_add_watch(3, "static/stylesheets/screen.css", IN_ATTRIB|IN_CLOSE_WRITE|IN_CREATE|IN_DELETE_SELF|IN_MOVE_SELF) = 1152 -``` - -### that’s all! - -I hope this helps a few people learn about `entr`! - --------------------------------------------------------------------------------- - -via: https://jvns.ca/blog/2020/06/28/entr/ - -作者:[Julia Evans][a] -选题:[lujun9972][b] -译者:[译者ID](https://github.com/译者ID) -校对:[校对者ID](https://github.com/校对者ID) - -本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux中国](https://linux.cn/) 荣誉推出 - -[a]: https://jvns.ca/ -[b]: https://github.com/lujun9972 -[1]: http://eradman.com/entrproject/ diff --git a/sources/tech/20200702 Ex-Solus Dev is Now Creating a Truly Modern Linux Distribution Called Serpent Linux.md b/sources/tech/20200702 Ex-Solus Dev is Now Creating a Truly Modern Linux Distribution Called Serpent Linux.md index 208a6fda29..45ad6a8651 100644 --- a/sources/tech/20200702 Ex-Solus Dev is Now Creating a Truly Modern Linux Distribution Called Serpent Linux.md +++ b/sources/tech/20200702 Ex-Solus Dev is Now Creating a Truly Modern Linux Distribution Called Serpent Linux.md @@ -1,5 +1,5 @@ [#]: collector: (lujun9972) -[#]: translator: ( ) +[#]: translator: (geekpi) [#]: reviewer: ( ) [#]: publisher: ( ) [#]: url: ( ) diff --git a/translated/tech/20200628 entr- rerun your build when files change.md b/translated/tech/20200628 entr- rerun your build when files change.md new file mode 100644 index 0000000000..f659d3fe65 --- /dev/null +++ b/translated/tech/20200628 entr- rerun your build when files change.md @@ -0,0 +1,101 @@ +[#]: collector: (lujun9972) +[#]: translator: (geekpi) +[#]: reviewer: ( ) +[#]: publisher: ( ) +[#]: url: ( ) +[#]: subject: (entr: rerun your build when files change) +[#]: via: (https://jvns.ca/blog/2020/06/28/entr/) +[#]: author: (Julia Evans https://jvns.ca/) + +entr:文件更改时重新运行构建 +====== + +这将是一篇很快的文章。我是最近才发现 [[entr]][1] 的,我觉得为什么之前没有人告诉我?!?!因此,如果你和我一样,我会告诉你有关情况。 + +[entr 的网站][1]上有很多示例,对它已经有很好的解释。 + +它标题的总结是:`entr` 是一个命令行工具,当每次更改一组指定文件中的任何一个时,你都可以使用它运行任意命令。你给它传递要在标准输入监控的文件列表,如下所示: + +``` +git ls-files | entr bash my-build-script.sh +``` + +或者 + +``` +find . -name *.rs | entr cargo test +``` + +或者任何你希望的。 + +### 快速反馈很棒 + +就像世界上的每个程序员一样,我发现每次更改代码时都必须手动重新运行构建/测试非常烦人。 + +许多工具(例如 hugo 和 flask)都有内置的系统,可以在更改文件时自动重建,这很棒! + +但是通常我会自己编写一些自定义的构建过程(例如 “bash build.sh”),而 `entr` 让我有一种神奇的构建经验,我可以立即获得我是否只用一行 bash 修复了奇怪 bug 的反馈。万岁! + +### 重启服务器(`entr -r`) + +好的,但是如果你正在运行服务器,并且每次都需要重新启动服务器怎么办? entr 了解你,如果你传递 `-r`,那么 + +``` +git ls-files | entr -r python my-server.py +``` + +### 清除屏幕(`entr -c`) + +另一个简洁的标志是 `-c`,它让你可以在重新运行命令之前清除屏幕,以免被前面构建的输出分散注意力。 + +### 与 `git ls-files` 一起使用 + +通常,我要跟踪的文件集与 git 中的文件列表大致相同,因此将 git ls-files 传递给 `entr` 是很自然的事情。 + +我现在有一个项目,有时我刚刚创建的文件还不在 git 中。那么,如果要包括未跟踪的文件怎么办?这是我拼凑的一点 bash 语句: + +``` +{ git ls-files; git ls-files . --exclude-standard --others; } | entr your-build-scriot +``` + +也许可以只用一条 git 命令做到,但我不知道是什么。 + +### 每次添加新文件时重启:`entr -d` + +`git ls-files` 的另一个问题是有时候我添加一个新文件,当然它还没有在 git 中。entr 为此提供了一个很好的功能。如果你传递 `-d`,那么如果你在 entr 跟踪的任何目录中添加新文件,它将退出。 + +我将它与一个 while 循环配合使用,它将重启 `entr` 来包括新文件,如下所示: + +``` +while true +do +{ git ls-files; git ls-files . --exclude-standard --others; } | entr -d your-build-scriot +done +``` + +### entr 在 Linux 上的工作方式:inotify + +在 Linux 中,entr 使用 `inotify`(用于跟踪文件系统事件(如文件更改)的系统)工作。如果跟踪它,那么你会看到每个监控文件的 `inotify_add_watch` 系统调用,如下所示: + +``` +inotify_add_watch(3, "static/stylesheets/screen.css", IN_ATTRIB|IN_CLOSE_WRITE|IN_CREATE|IN_DELETE_SELF|IN_MOVE_SELF) = 1152 +``` + +### 就是这些 + +我希望这可以帮助一些人了解 `entr`! + +-------------------------------------------------------------------------------- + +via: https://jvns.ca/blog/2020/06/28/entr/ + +作者:[Julia Evans][a] +选题:[lujun9972][b] +译者:[geekpi](https://github.com/geekpi) +校对:[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://jvns.ca/ +[b]: https://github.com/lujun9972 +[1]: http://eradman.com/entrproject/