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<title>dotemacs/tests/test-dev-fkeys--projectile-revert-on-fail.el, branch load-graph-classify-end</title>
<subtitle>My Emacs configuration
</subtitle>
<id>https://git.cjennings.net/dotemacs/atom?h=load-graph-classify-end</id>
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<updated>2026-05-04T02:32:09+00:00</updated>
<entry>
<title>test: re-point projectile revert tests at the decision helper</title>
<updated>2026-05-04T02:32:09+00:00</updated>
<author>
<name>Craig Jennings</name>
<email>c@cjennings.net</email>
</author>
<published>2026-05-04T02:32:09+00:00</published>
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<id>urn:sha1:250db085bd2a2860636bb96c215dcbaa5efe91e9</id>
<content type='text'>
The legacy `cj/--projectile-revert-on-fail` wrapper and `cj/--projectile-revert-state` global were removed when the closure-based revert refactor landed (commit 2f8d898). The corresponding tests in `test-dev-fkeys--projectile-revert-on-fail.el` and the around-revert / capture-cmd files still referenced the legacy symbols, so 7 tests had been failing on `main` since that commit.

I re-pointed each test at `cj/--projectile-revert-state-on-fail`, the pure decision helper that the closure-based hook delegates to. Each test now passes the captured `state` plist as an explicit argument instead of binding the old global. Test names updated to match the new target.

I dropped two tests that no longer have a target. `revert-on-fail-clears-state` was specific to the wrapper clearing the global on completion, and there is no global to clear now. `revert-on-fail-removes-itself` was specific to the wrapper removing itself from `compilation-finish-functions`. The closure-based hook removes itself differently and is covered by the buffer-local hook tests in `test-dev-fkeys--projectile-around-revert.el`.

The around-revert and capture-cmd tests also lost their `cj/--projectile-revert-state nil` let-bindings since that variable no longer exists.

21 projectile-related tests pass together.
</content>
</entry>
<entry>
<title>feat(dev-fkeys): revert projectile cache on failed-and-modified compile</title>
<updated>2026-05-03T23:25:58+00:00</updated>
<author>
<name>Craig Jennings</name>
<email>c@cjennings.net</email>
</author>
<published>2026-05-03T23:25:58+00:00</published>
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<id>urn:sha1:475d6305e150c0a8ac61738eabe434c432acd991</id>
<content type='text'>
Without this, a one-off typo at projectile's compile/test/run prompt poisons the per-project cache: every subsequent invocation pre-fills the broken value. I hit it during the Phase 2a live-test, where projectile's "All tests" prompt was replaying `go test ../.` and there was no clean way to get the prior known-good back.

Three pieces of machinery, all in `dev-fkeys.el`:

`cj/--projectile-capture-cmd' captures the current cached cmd at the project root before each invocation, stashing a plist with :map / :root / :prior in `cj/--projectile-revert-state'.

`cj/--projectile-revert-on-fail' is a `compilation-finish-functions' hook that reads that state. If the compile failed AND the cmd was modified from the captured prior value AND the prior was non-nil, it puts the prior back in projectile's cmd-map. Test-fails-because-of-real-bug (cmd unchanged through the run) leaves the cache alone. The hook self-removes on first invocation regardless of outcome and clears the state.

`cj/--projectile-around-revert' is the around-advice that wires the two together. I added the advice to all three projectile cmd-runners — `projectile-compile-project', `projectile-test-project', `projectile-run-project' — so the auto-revert applies whether the user invoked via F4 / F6 or directly via `M-x'.

Plus the manual escape-hatch: `cj/projectile-reset-cmds' clears compile/test/run cache for the current project. Bound to `C-; P' under the personal keymap. Use when projectile's auto-derived default was wrong from the start and you want to start fresh — the next F4 / F6 invocation re-derives projectile's project-type default.

TDD: 18 new tests across 4 files, one per helper. The around-advice tests build the capture/install/orig-fn flow against stub cmd-maps and verify state captured, hook installed, orig-fn invoked. The revert hook tests cover failure-and-modified (revert), success (leave alone), failure-but-unchanged (leave alone), nil prior (leave alone), nil state (no-op), and self-removal. The reset-cmds tests cover the all-three-maps clear, no-cached-entry no-op, and no-project user-error.
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</entry>
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