Find a cargo-installed tempyr from the managed Git hooks - #48
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Included review availability: 0 reviews are currently available. Your included PR review attempts over the past 7 days set your current allowance at 5 reviews per hour. 📝 WalkthroughWalkthroughThe generated Git hook runner searches the Cargo bin directory for ChangesGit hook executable fallback
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to Git hooks can now locate cargo-installed tempyr when shell profiles do not populate PATH, while preserving existing lookup and missing-binary behavior. The change is covered by targeted resolver and hook execution tests and is ready to merge. Poem
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Inline comments:
In `@crates/tempyr-cli/src/commands/git_hooks.rs`:
- Around line 714-715: Extend the git-hook tests around run_tempyr and the
generated hook bodies to execute the rendered shell scripts instead of relying
only on string assertions. Cover PATH precedence, Cargo fallback, both
executable names, and missing-binary behavior; assert run_tempyr returns 127
when no candidate exists, while each complete hook returns 0 because it appends
|| true. Preserve the existing rendering assertions.
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crates/tempyr-cli/src/commands/git_hooks.rs
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`cargo install tempyr` is the documented install path, so the binary normally
lives in ~/.cargo/bin. Git runs hooks with whatever environment the invoking
process had, and that directory reaches PATH through a shell profile. A
non-interactive SSH session, a GUI Git client, or a CI step that never sources
a profile therefore has no ~/.cargo/bin on PATH, `run_tempyr` falls through to
`return 127`, and the hook silently does nothing.
Look under ${CARGO_HOME:-$HOME/.cargo}/bin after the PATH lookup, so an
explicitly installed or newer tempyr on PATH still wins, and a missing one
still reports 127.
Observed on a SteamOS host reached over SSH: every pull skipped the post-merge
index refresh while the same command run by absolute path succeeded.
The existing assertions only inspected the rendered text, which cannot catch a quoting or ordering mistake in the emitted shell. Run the generated block under /bin/sh with a cleared environment instead. The resolver test walks the three states that matter: nothing installed anywhere reports 127 so callers can distinguish "not installed" from "ran and failed"; a stub in ~/.cargo/bin with an empty PATH is found through the new fallback; and a stub on PATH still wins over the cargo-bin copy. A second test covers the pre-commit body, whose trailing "|| true" must keep the hook exiting 0 even when the resolver reports 127. Verified by mutation: deleting the fallback from the template turns the first test red with left: 127, right: 42, which is exactly the reported bug.
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Problem
cargo install tempyris the documented install path, so the binary normally lives in~/.cargo/bin. Git runs hooks with whatever environment the invoking process had, and~/.cargo/binreachesPATHthrough a shell profile.So in any context that never sources a profile — a non-interactive SSH session, a GUI Git client, a CI step —
run_tempyrwalks its candidates, finds nothing, and hitsreturn 127. The hook then silently does nothing.The failure is quiet by design:
post-mergeandpost-checkoutswallow it, andpre-commitrunsjournal lint ... || true. So the index just stops being refreshed and nothing says why.I hit this on a SteamOS host reached over SSH. Every
git pullskipped the post-merge index refresh, while~/.cargo/bin/tempyr index update --jsonrun by absolute path succeeded immediately.Change
Look under
${CARGO_HOME:-$HOME/.cargo}/bin— after thePATHlookup, so an explicitly installed or newertempyronPATHstill wins, and a genuinely missing one still returns 127.Verification
Built the CLI, generated real hooks with
tempyr initin a scratch repo, and compared the resolver with and without the fallback underenv -iwith a PATH that excludes~/.cargo/binand no localtarget/:Also confirmed the generated hooks still pass
sh -n, and addedmanaged_block_falls_back_to_the_cargo_bin_directory, which asserts both candidate paths are present, that the fallback is ordered after thePATHlookup, and thatreturn 127survives.cargo test -p tempyr-cli: 131 unit + 58 integration passing, 0 failures.cargo clippy -p tempyr-cli --all-targetsreports one warning, injournal_init.rs, which also reproduces onmaster.Note on a related issue
While tracking this down I checked whether
tempyrever generatedjournal lint --strictin the pre-commit hook, since a downstream repo of mine has that and it hard-blocks every commit. It does not —BODY_JOURNAL_LINThas beenrun_tempyr journal lint >/dev/null || truesince 989a019, matching the documented warning-only contract. That edit was made downstream inside the managed block. Nothing to fix here; flagging only because a hand-edit inside# >>> tempyr managed hook >>>is invisible until the next regeneration silently reverts it.🤖 Generated with Claude Code
https://claude.ai/code/session_01EwBDuaQS537MdX3GUtmhqj
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