new post: bash dotglob

content/posts/2024-12-09-bash-glob-hidden-files-recursively.md

@@ -0,0 +1,35 @@
+---
+title: "bash: glob hidden files recursively"
+date: 2024-12-09T17:53:14-03:00
+tags:
+  - dev
+  - devops
+---
+
+Assume you make a huge change to your git repository, that spawns several file
+formats – cpp, java, javascript, python, etc.
+
+In the end you want to revert the javascript changes, for the sake of splitting
+your commit into self-contained chunks[^1].
+
+I like the following approach[^2]:
+
+```shell
+% git checkout -- **/*.js
+```
+
+**Caveat**: It does not include hidden files, or files in hidden directories.
+Unless...you set the `dotglob` option:
+
+```shell
+% shopt -s dotglob
+```
+
+Note that `shopt` works in `bash`, alas not in `zsh`.
+
+
+[^1]: https://sscce.org/
+[^2]: In theory, this is a pre-requisite: `shopt -s globstar`. In practice, it
+    should be the default behavior.
+
+<!--more-->