editor: Make editor: expand excerpts actually expand all excerpts

[feitreim]

Expand all excerpts had a doc comment describing it as expanding all excerpts, but in practice it only expanded the excerpt that was the most relevant.

I fixed that to make it expand all excerpts.

video:

Screen.Recording.2026-04-23.at.5.49.43.PM.mov

Self-Review Checklist:

• I've reviewed my own diff for quality, security, and reliability
• Unsafe blocks (if any) have justifying comments
• The content is consistent with the UI/UX checklist
• Tests cover the new/changed behavior
• Performance impact has been considered and is acceptable

Closes #54651

Release Notes:

• editor: expand excerpts now has correct documentation explaining its function.

[SomeoneToIgnore]

Thank you, this is quite a stark change of the existing behavior, so let's not ship the PR in this form to avoid breaking someone's workflow for an issue with no upvotes.

• First of all, a very nice spot of the

zed/crates/editor/src/actions.rs

Line 195 in 5294e16

/// Expands all excerpts in the editor.

doc being wrong: let's instead document that it expands all excerpts with selections.

• Is it so that other actions behave differently?
  That seems wrong, but would love to get a comparison.

• If selecting all and expanding excerpts (on macOs that's cmd-a and repeated alt-enter) does not work as a solution still, let's add a standalone action to do what's intended.
  That action could have a doc and tests similar to what's done in the PR.

[feitreim]

@SomeoneToIgnore Thanks for the feedback, updated it to just change the doc comment, I tested cmd+a then shift+enter to expand and that accomplished the goal just fine.

Looking into other actions this seems like the correct and consistent name for the action, the name for the action as originally described would contain the word "All", like FoldAll, UnfoldAll, StageAll.

[SomeoneToIgnore]

Amazing, thank you for the small fix!

[hyperknot]

Sorry this is still confusing. I'm the author of the original issue #54651

Expand all should expand all excerpts, not just the selected ones. The non-all version should expand all the selected ones.

Which behaviour got chosen?

[feitreim]

@hyperknot right now there is no Expand All Excerpts command, just Expand Excerpts, previously, the doc comment for Expand Excerpts said that it would effect all, instead just selected. Naming convention wise, this isn't correct. If there were an action that did expand ALL the excerpts, it would have All in the name, like Expand All Excerpts.

so right now the behavior is Expand Excerpts expands excerpts with selections in them.
There is no Expand All Excerpts.

[hyperknot]

I see. Not having a full 2 pane view is the most painful part of Zed for me currently, coming from JetBrains. I actually keep JetBrains open only for this feature.

Ideally it'd be a setting something like "git-diff-initial-view": expanded/collapsed

[hyperknot]

Opened feature request here:
#55261