Disable tsc incremental compilation to prevent stale cache phantom errors#2277
Merged
hiroshinishio merged 1 commit intomainfrom Feb 19, 2026
Merged
Disable tsc incremental compilation to prevent stale cache phantom errors#2277hiroshinishio merged 1 commit intomainfrom
hiroshinishio merged 1 commit intomainfrom
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Summary
--incremental falseto tsc to disable incremental compilation, preventing stale.tsbuildinfocache from causing phantom errors (e.g. reporting errors at line 73 in a 64-line file)tsconfig.jsonhad"incremental": true, so tsc creates.tsbuildinfoon every run. Once stale, subsequent runs report phantom errors from cached file state--incremental falseflag is present in the tsc commandTest plan
test_run_tsc_check_disables_incrementalSocial Media Post (GitAuto)
A customer's tsconfig.json had "incremental": true. tsc caches compilation state in .tsbuildinfo files. When GitAuto's agent rewrites a file between verification runs, tsc reads the stale cache and reports phantom errors - like "error at line 73" in a 64-line file. The agent rewrote correct code 7 times chasing a ghost. Fix: override with --incremental false on every tsc check.
Social Media Post (Wes)
tsc reported "syntax error at line 73." The file was 64 lines. Checked the code - it was correct. The customer's tsconfig had "incremental": true, so tsc cached compilation state in .tsbuildinfo. Between rewrites, the cache went stale and tsc kept checking against a ghost version of the file. 7 attempts, all correct, all "failed." --incremental false on our tsc check. Done.