added: edit-old-commit.md

added last updated time in readme

.github/workflows/build.yml

@@ -48,6 +48,10 @@ jobs:
               .sort()
               .map(name => name.split("/").slice(-2));
 
+            // add last updated
+            const now = new Date();
+            readme += `\nLast updated: ${now.toDateString()}, ${now.toTimeString()}.\n`;
+            
             // add summary
             readme += `\n${entries.length} TILs so far:\n`;
 

git/edit-old-commit.md

@@ -0,0 +1,17 @@
+# Editing Old Commits Using CLI or with Lazygit
+
+Whenever I needed to edit an old commit, be it a silly typo or a missing import I caught before pushing to a remote repository, I use the following `git` commands.
+
+```git
+git log # look up the commit hash to be edited
+git rebase --interactive 'abcdef^' # caret means its parent
+# mark the commit as "edit" and apply changes
+git commit --all --amend --no-edit
+git rebase --continue
+```
+
+Using [lazygit](https://github.com/jesseduffield/lazygit), the process is almost identical.
+
+- Navigate to the commit to be edited and press `e` _(edit commit)_.
+- Stage changes and press `A` _(Amend commit with staged changes)_.
+- Press `m` _(view merge/rebase options)_ and select `continue`.