deb: shrink records to upper, journal and log; keep metadata for every build

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Records carried a full chroot each, and space turned out to be the hard
constraint: five records per target multiplied by a multi-GB chroot does
not fit. The chroot is now per-run scratch — every build extracts a
fresh one from the sha-verified mmdebstrap tarball cache into its
record's chroot/ dir and removes it at the end (success, failure and
interrupt included); resume_chroot, the .pkh-ready probe and
chroot_is_usable are gone, and crashed-run leftovers are swept when the
next run of that identity starts.

What a record keeps instead: manifest.json (renamed, now with the
tarball sha it used, a kept_upper flag and a tree-only journal — the
environment phases rerun in every fresh chroot), a log/build.log full
tee of the build output (kept for EVERY build; plain runs become
metadata-only records, so keep-iff-incremental now applies to the
staged tree alone), and — for --incremental runs — tree-upper/ with its
host-files.list. The fork gate carries a base's staged tree only while
its recorded tarball sha still matches the cache and the changelog
version is unchanged; a fork candidate is any record with a staged tree.

The keep-last-5 cap now applies to staged trees: a sixth retention
degrades the oldest record to metadata-only instead of deleting it.
New `pkh deb log [-f] [<id>]` prints (or follows) a record's build log,
and `pkh deb list` shows the staged-tree state and plain-run records
too. README rewritten around the shrunk model.

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This commit is contained in:

vhaudiquet

2026-09-29 14:00:34 +02:00

parent 81f0d52f85

commit dd2634abe3

7 changed files with 1287 additions and 946 deletions

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src/deb/session.rs

+808 -591

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