add the old snippet md files

old_snippets/emacs-replace-across-multiple-files.en.md

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+---
+title: "emacs replace across multiple files"
+seo_description: "emacs tutorial on how to replace / edit across multiple files"
+date: 2021-11-28T18:49:21+01:00
+draft: false
+snippet_types:
+- emacs
+---
+
+This week I was making some changes to a [hugo shortcode](https://gohugo.io/content-management/shortcodes/) 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](https://github.com/emacsmirror/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
+
+{{< video-with-caption
+    webm_url="https://travisshears.com/image-service/videos/emacs-replace-across-multiple-files/emacs_mass_edit_small.webm"
+    mp4_url="https://travisshears.com/image-service/videos/emacs-replace-across-multiple-files/emacs_mass_edit_small.mp4"
+>}}
+
+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](https://github.com/keycastr/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](https://git.sr.ht/~travisshears/sourcehut-paste).
+- Video was created with Quicktime screen recording feature plus my video
+  helper app, [ts-video](https://git.sr.ht/~travisshears/ts-video)