docs: fold dead Backfill/IncrementalSync wrapper cleanup into sync spec

Discovered while verifying the sync design with the user: these two
exported methods are dead in production (only FullSync's *Core calls
are actually used), kept alive only by tests, and their doc comments
still reference the background sync loop removed in 4d2cbe4.
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2026-07-26 22:45:59 +02:00
parent 7f5618ce49
commit a828055c30

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@@ -11,6 +11,24 @@ Replace the Profile page's single inline "syncing: N/M activities" text line wit
modal that shows real progress through sync, broken into named phases the user can actually modal that shows real progress through sync, broken into named phases the user can actually
follow: discovering new activities, fetching activity details, then fetching workouts. follow: discovering new activities, fetching activity details, then fetching workouts.
## Cleanup folded into this work: dead `Backfill`/`IncrementalSync` wrappers
`Service.Backfill(ctx)` and `Service.IncrementalSync(ctx)` are exported methods that each record
their own `SyncRun`, wrapping `backfillCore`/`incrementalSyncCore`. Their doc comments say
they're used "by the periodic background loop" -- but that loop was removed in an earlier
session (`4d2cbe4 refactor: remove automatic background incremental sync`), and grepping
`internal/api/` and `cmd/` confirms nothing in production calls them anymore. `FullSync` (the
only production caller of the core logic) calls `backfillCore`/`incrementalSyncCore` directly.
Only `internal/sync/service_test.go` still calls `Backfill`/`IncrementalSync`, which is the only
reason they're not already flagged as unused by the compiler.
Since this plan already restructures `service.go`'s progress model, remove these two dead
exported methods (and their now-inaccurate doc comments) as an early task, rewriting the tests
that called them to exercise the same behavior through `FullSync` or the `*Core` functions
directly (same package, so unexported functions are still directly testable) -- before any of
the progress-model changes below, so later tasks aren't touching code that's about to be
deleted.
## Current state (for reference) ## Current state (for reference)
- `sync.Service.Progress()` returns a flat `{Done, Total}`, written only by - `sync.Service.Progress()` returns a flat `{Done, Total}`, written only by