Add Process JSON Output From gh With jq as a GitHub TIL

README.md

@@ -10,7 +10,7 @@ working across different projects via [VisualMode](https://www.visualmode.dev/).
 
 For a steady stream of TILs, [sign up for my newsletter](https://visualmode.kit.com/newsletter).
 
-_1801 TILs and counting..._
+_1802 TILs and counting..._
 
 See some of the other learning resources I work on:
 
@@ -470,6 +470,7 @@ If you've learned something here, support my efforts writing daily TILs by
 - [List PRs Awaiting Your Review](github/list-prs-awaiting-your-review.md)
 - [Open A PR To An Unforked Repo](github/open-a-pr-to-an-unforked-repo.md)
 - [Open File To Specific Line In Browser](github/open-file-to-specific-line-in-browser.md)
+- [Process JSON Output From gh With jq](github/process-json-output-from-gh-with-jq.md)
 - [Target Another Repo When Creating A PR](github/target-another-repo-when-creating-a-pr.md)
 - [Tell gh What The Default Repo Is](github/tell-gh-what-the-default-repo-is.md)
 

github/process-json-output-from-gh-with-jq.md

@@ -0,0 +1,58 @@
+# Process JSON Output From gh With jq
+
+The `gh` (GitHub) CLI is useful for accessing data about your profile and
+projects from the terminal. With the `--json` flag, we can access the data in a
+structured way which is useful for scripting.
+
+Here is an example of pulling a list of all my repositories, limiting each
+entity to just the `nameWithOwner` and `description`:
+
+```bash
+❯ gh repo list --limit 1000 --json nameWithOwner,description
+[
+  {
+    "description": "My personal site -- joshbranchaud.com",
+    "nameWithOwner": "jbranchaud/personal-site"
+  },
+  {
+    "description": "Private repo for the NOTES.md of my TIL repo",
+    "nameWithOwner": "jbranchaud/til-notes-private"
+  },
+  ...
+]
+```
+
+If I'm using the `--json` flag, then I can add in the `--jq` flag to apply a
+`jq` query for additional processing of the output.
+
+Here I convert it to a series of tuples:
+
+```bash
+❯ gh repo list --limit 1000 --json nameWithOwner,description \
+  --jq '.[] | [.nameWithOwner, .description]'
+[
+  "jbranchaud/personal-site",
+  "My personal site -- joshbranchaud.com"
+]
+[
+  "jbranchaud/til-notes-private",
+  "Private repo for the NOTES.md of my TIL repo"
+]
+...
+```
+
+Then I can add one more pipe to that `jq` query to turn it into _tab-separated
+values_ using
+[`@tsv`](https://jqlang.org/manual/v1.5/#format-strings-and-escaping):
+
+```bash
+❯ gh repo list --limit 1000 --json nameWithOwner,description \
+  --jq '.[] | [.nameWithOwner, .description] | @tsv'
+jbranchaud/personal-site	My personal site -- joshbranchaud.com
+jbranchaud/til-notes-private	Private repo for the NOTES.md of my TIL repo
+...
+```
+
+This is useful because I can then pipe it to another program, such as an `fzf`
+command like [this repo selector that opens the selected one in the
+browser](https://github.com/jbranchaud/dotfiles/commit/f964ca10c6c4db3475411c2991dc2f1dfd18c818).