Files
zpan/cmd/internal/engine
Jasper Van b959e5e6bf fix(downloader): supervise managed engines and make the CLI go-installable (#461)
Three related changes hardening the remote downloader, bundled because the
module-path rename touches every file — splitting would leave a mid-history
commit that doesn't build.

Engine supervision: a managed engine subprocess (aria2c / qbittorrent-nox)
that exits unexpectedly now crashes the worker. watchEngineProcess waits on
the child, logs the exit at error level, and cancels the run context so
`downloader up` returns non-zero; the container (restart: unless-stopped)
then restarts the whole stack. Previously the exit error was discarded and
the worker kept heartbeating as healthy while every task failed against the
dead RPC. A deliberate shutdown kill is told apart from a crash via a
stopping flag.

aria2 GID recovery: waitAria2 re-discovers the live GID via findTask when
aria2 reports 'GID ... is not found' mid-download (e.g. after an aria2
restart) instead of failing the task. Adds isAria2GIDNotFound, which matches
tellStatus's message format that isAria2DownloadNotFound missed.

CLI install: move the entrypoint to the module root (cmd/main.go) and rename
the module github.com/saltbo/zpan/cmd -> github.com/saltbo/zpan so
`go install .` from cmd/ yields a zpan binary. Internal imports shorten to
github.com/saltbo/zpan/internal/...; the Dockerfile builds the module root.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 00:56:07 -04:00
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