test: rename RUN_EARTHLY test UDCs to RUN_EARTHBUILD

[kmannislands]

What

Renames the internal test-harness User Defined Commands used across the integration test Earthfiles:

Old	New
RUN_EARTHLY	RUN_EARTHBUILD
RUN_EARTHLY_ARGS	RUN_EARTHBUILD_ARGS
DO_REMOTE_CACHE_EARTHLY	DO_REMOTE_CACHE_EARTHBUILD

This covers the FUNCTION/COMMAND definitions and every DO +... invocation, including cross-file references (tests+RUN_EARTHBUILD, ../../+RUN_EARTHBUILD).

Why

Part of the ongoing earthly → earthbuild naming cleanup. These UDCs are purely internal test fixtures — renaming them changes no user-facing behavior, config, env vars, or released target/artifact names.

Verification

• All 29 affected Earthfiles parse cleanly via earthly debug ast.
• No lingering RUN_EARTHLY / DO_REMOTE_CACHE_EARTHLY references remain (the distinct CI input RUN_EARTHLY_TEST_ARGS is intentionally left for a separate CI-vars PR).
• Reduces the tracked earthly line count by 529 (5408 → 4879).

🤖 Generated with Claude Code

[github-actions]

🎉 Are we earthbuild yet?

Great progress! You've reduced "earthly" occurrences by 529 (9.78%)

📈 Overall Progress

Branch	Total Count
main	5408
This PR	4879
Difference	-529 (9.78%)

📁 Changes by file type:

File Type	Change
Go files (.go)	➖ No change
Documentation (.md)	➖ No change
Earthfiles	✅ -529

---

Keep up the great work migrating from Earthly to Earthbuild! 🚀

💡 Tips for finding more occurrences

Run locally to see detailed breakdown:

./.github/scripts/count-earthly.sh

Note that the goal is not to reach 0.
There is anticipated to be at least some occurences of earthly in the source code due to backwards compatibility with config files and language constructs.

[gemini-code-assist]

Code Review

This pull request renames the test helper functions and targets from RUN_EARTHLY to RUN_EARTHBUILD (and similarly for related arguments and helpers) across all test Earthfiles. The review feedback highlights a few critical argument mismatches in the test files: specifically, the use of -target instead of --target in tests/Earthfile, and the use of --should-fail instead of --should_fail in both tests/locally-in-command/Earthfile and tests/locally-in-function/Earthfile, which would prevent correct argument binding.

Important

The consumer version of Gemini Code Assist on GitHub is being sunset. Starting June 18, 2026, new organization installations will be blocked, and all code review activity will officially cease on July 17, 2026.
For more details on the timeline and next steps, please review the Help Documentation.

[gemini-code-assist]

The argument -target is used instead of --target. In Earthly, User Defined Command (UDC) arguments must be prefixed with double hyphens (--target). Using a single hyphen will prevent the argument from being bound correctly, causing the target to default to +all.

    DO +RUN_EARTHBUILD --earthfile=allow-privileged.earth --should_fail=true --extra_args="--allow-privileged" --target=+reject-privileged-in-remote-repo-triggered-by-from-locally
    DO +RUN_EARTHBUILD --earthfile=allow-privileged.earth --should_fail=true --extra_args="--allow-privileged" --target=+reject-privileged-in-remote-repo-triggered-by-from-privileged
    DO +RUN_EARTHBUILD --earthfile=allow-privileged.earth --should_fail=true --extra_args="--allow-privileged" --target=+reject-privileged-in-remote-repo-triggered-by-copy-locally
    DO +RUN_EARTHBUILD --earthfile=allow-privileged.earth --should_fail=true --extra_args="--allow-privileged" --target=+reject-privileged-in-remote-repo-triggered-by-copy-privileged
    DO +RUN_EARTHBUILD --earthfile=allow-privileged.earth --should_fail=true --extra_args="--allow-privileged" --target=+reject-privileged-in-remote-repo-triggered-by-build-locally
    DO +RUN_EARTHBUILD --earthfile=allow-privileged.earth --should_fail=true --extra_args="--allow-privileged" --target=+reject-privileged-in-remote-repo-triggered-by-build-privileged
    DO +RUN_EARTHBUILD --earthfile=allow-privileged.earth --should_fail=true --extra_args="--allow-privileged" --target=+reject-dedup

[gemini-code-assist]

The argument --should-fail is passed with a hyphen, but the function RUN_EARTHBUILD_ARGS defines the parameter as should_fail with an underscore. This mismatch will prevent the argument from being bound correctly, causing it to default to false and potentially leading to incorrect test assertions.

    DO --pass-args +RUN_EARTHBUILD_ARGS --target=/the-test+test --should_fail=true

[gemini-code-assist]

The argument --should-fail is passed with a hyphen, but the function RUN_EARTHBUILD_ARGS defines the parameter as should_fail with an underscore. This mismatch will prevent the argument from being bound correctly, causing it to default to false and potentially leading to incorrect test assertions.

    DO --pass-args +RUN_EARTHBUILD_ARGS --target=/the-test+test --should_fail=true