code-cursor: add aarch64-linux

[sarahec]

Changes

1. Added aarch64-linux to supported platforms
2. Altered update.sh to collect new platform
3. Refactored the AppImage packaging step into a function
4. Refactored the AppImage install step into a function

This will facilitate adding Darwin in #373494

Tests

1. Confirmed update.sh works for both linux platforms
2. Confirmed that x86_64-linux builds the same binary as before the change

For reviewers

1. Please confirm that aarch64-linux builds. Note: This is an unfree package.
2. The unusual structure (defining the input source to the derivation and the install phase in the upper let block) is so we can add Darwin installation easily. Darwin uses a different file format (.dmg disk images) and will need its own repack and install phases. We can assign these conditionally to src and installPhase based on platform class.

[sarahec]

@GaetanLepage I believe you have the ability to build aarch64-linux? If so, I welcome a nixpkgs-review and a PR review.

[GaetanLepage]

Suggestion.

[GaetanLepage]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 373536

---

aarch64-linux

✅ 1 package built:

• code-cursor

[aspauldingcode]

Exciting to see. I think this looks good.

[sarahec]

Exciting to see. I think this looks good.

Thank you. I just need to work out a few stylistic questions with Gaetan, who is reviewing.

Edit: I think the main issue was he wanted to replace the table of two URLs with a single URL with a conditional part and a list of hashes. Unfortunately, it doesn't quite do what we want.

[aspauldingcode]

Edit: I think the main issue was he wanted to replace the table of two URLs with a single URL with a conditional part and a list of hashes. Unfortunately, it doesn't quite do what we want.

I think that this is because Cursor's Download links for macOS has spaces in them, for whatever reason. Makes it really hard to find the hashes too.

It could've been a single url, passing variables through the download link based on the OS, architecture, and version of the package which would simplify things further, but I couldn't figure out the %20's that are added in the url

[sarahec]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 373536

---

x86_64-linux

[sarahec]

Changed the update script to be less sensitive to filename changes. It now extracts everything up to the architecture ID then constructs URLs for x86/arm64. This pattern will make Darwin support easier.

[bet4it]

The application UI displays incorrectly. Works fine when I use AppImage directly.

[sarahec]

@bet4it Please file a new bug and fill in the details there.

Also, are you on a ARM linux box? If not, the issue isn't coming from this PR and we'll need to work on it separately.

[GaetanLepage]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 373536

---

aarch64-linux

✅ 1 package built:

• code-cursor

[bet4it]

@sarahec I find this situation same on x86_64 and on previous version of code-cursor, so it's not related with this PR 🤔