emacs replace across multiple files -- 28.11.2021 %
This week I was making some changes to a hugo shortcode I use on my personal site for videos.
Old one:
{< video-with-caption
remote_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.webm"
backup_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.mp4"
title="through the woods we go"
>}
New one:
{< video-with-caption
webm_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.webm"
mp4_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.mp4"
title="through the woods we go"
>}
Problem is this change crosses 50+ files. I knew some ways with sed to regex
substitute it across the files but I wanted something more emacs. Eventually
found wgrep! Its allows you to search
with normal +default/search-project
then edit the results.
- <SPC s p> to search the project
- type search ex: “remote_url”
- <C-c C-o> to open the results
- delete some results with <d>
- <C-c C-p> to make the results editable
- make edits example :%s/remote_url/webm_url/g
- <Z Z> to save changes across all the files
- lastly review changes via git
final patch: https://git.sr.ht/~travisshears/travisshears.com/commit/71e9c89c32f9b9f362e8e94ca8530530c1418284
In the making of this snippet I had some other fun:
- this screen recording led me to finding keycastr. A very helpful mac osx program that displays keys as you type them. Great for tutorials.
- My personal site is not open source because I write lot of drafts that don’t get published for months… For this snippet I wanted to show part of that source code as a patch, decided on hosting it as a sourcehut paste. To create the paste I wrote a sourcehut-paste.
- Video was created with Quicktime screen recording feature plus my video helper app, ts-video