Add an automated differential test harness in build/mod.rs that builds
the same source tree twice - once with real 'dpkg-buildpackage -S
-I -i -nc -d --no-sign', once with the native pipeline - and compares
all produced artifacts:
- .dsc payload byte-for-byte,
- .changes field-by-field (checksum lines of the .buildinfo itself
excluded, as its content legitimately differs on machine-dependent
fields),
- .buildinfo structure (Installed-Build-Depends, Environment,
Build-Date and Build-Tainted-By excluded).
Move the generic components out of src/build/ into a new src/debian/
module so they can be reused independently of the build pipeline:
deb822 control parsing (plus the debian/control model), file checksum
registry, debian/files registry, Debian version handling and changelog
entry parsing.
Merge OpenPGP clearsigning into utils/gpg.rs next to the existing key
discovery helper, making signing available outside of builds.
Delegate changelog.rs header/footer parsing to the new
debian::changelog parser, removing the duplicate regex implementation.
src/build/ keeps only build-specific logic: the pipeline driver,
build types, environment setup and the .buildinfo/.changes writers.
Replace the 'dpkg-buildpackage -S' wrapper with a native pipeline in
src/build/:
- deb822 control parser/writer with dpkg-compatible multiline rendering
(control.rs)
- md5/sha1/sha256 checksum registry, insertion-ordered like dpkg's
artifact accumulation (checksums.rs)
- Debian version splitting/validation and full changelog entry parsing,
including binNMU binary-only entries (metadata.rs)
- build-type bitflags and rules-target/artifact-suffix mapping
(buildtype.rs)
- environment setup: SOURCE_DATE_EPOCH, DEB_BUILD_OPTIONS,
dpkg-architecture env dump, vendor default profiles and the sanitized
Environment field recorded in .buildinfo (env.rs)
- debian/files registry with atomic saves (files.rs)
- native .buildinfo writer, including the Installed-Build-Depends
closure computed over the dpkg status database (buildinfo.rs)
- native .changes writer emitting dpkg's canonical field order with
legacy Files + Checksums-Sha1/Sha256 (changes.rs)
- gpgme clearsigning with the transitive checksum cascade
(dsc -> buildinfo -> changes), key discovery from the changelog
maintainer and UNRELEASED no-sign handling (sign.rs)
dpkg-source (-b/--before-build/--after-build) intentionally remains a
subprocess; debian/rules execution is unchanged.
Validated differentially against real dpkg-buildpackage -S -I -i -nc -d
on native and 3.0 (quilt) fixture packages: .dsc byte-identical, .changes
payload matches modulo machine-dependent Installed-Build-Depends and
Environment content, all signatures verify with gpg, artifact ordering
and UNRELEASED no-sign behavior match dpkg.
vhaudiquet