67 lines
2.5 KiB
Markdown
67 lines
2.5 KiB
Markdown
---
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title: "emacs replace across multiple files"
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seo_description: "emacs tutorial on how to replace / edit across multiple files"
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date: 2021-11-28T18:49:21+01:00
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draft: false
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snippet_types:
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- emacs
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---
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This week I was making some changes to a [hugo shortcode](https://gohugo.io/content-management/shortcodes/) I use on my personal
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site for videos.
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Old one:
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```
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{< video-with-caption
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remote_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.webm"
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backup_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.mp4"
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title="through the woods we go"
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>}
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```
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New one:
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```
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{< video-with-caption
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webm_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.webm"
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mp4_url="https://travisshears.com/image-service/videos/galtenberg-ski-tour/over_the_tree.mp4"
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title="through the woods we go"
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>}
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```
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Problem is this change crosses 50+ files. I knew some ways with sed to regex
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substitute it across the files but I wanted something more emacs. Eventually
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found [wgrep](https://github.com/emacsmirror/wgrep)! Its allows you to search
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with normal `+default/search-project` then edit the results.
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- \<SPC s p> to search the project
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- type search ex: "remote_url"
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- \<C-c C-o> to open the results
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- delete some results with \<d>
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- \<C-c C-p> to make the results editable
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- make edits example :%s/remote_url/webm_url/g
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- \<Z Z> to save changes across all the files
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- lastly review changes via git
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{{< video-with-caption
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webm_url="https://travisshears.com/image-service/videos/emacs-replace-across-multiple-files/emacs_mass_edit_small.webm"
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mp4_url="https://travisshears.com/image-service/videos/emacs-replace-across-multiple-files/emacs_mass_edit_small.mp4"
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>}}
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final patch: https://git.sr.ht/~travisshears/travisshears.com/commit/71e9c89c32f9b9f362e8e94ca8530530c1418284
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---
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In the making of this snippet I had some other fun:
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- this screen recording led me to finding
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[keycastr](https://github.com/keycastr/keycastr).
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A very helpful mac osx program that displays keys as you type them.
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Great for tutorials.
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- My personal site is not open source because I write lot of drafts that don't
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get published for months... For this snippet I wanted to show part of that
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source code as a patch, decided on hosting it as a sourcehut paste. To create
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the paste I wrote a [sourcehut-paste](https://git.sr.ht/~travisshears/sourcehut-paste).
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- Video was created with Quicktime screen recording feature plus my video
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helper app, [ts-video](https://git.sr.ht/~travisshears/ts-video)
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