Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r271876:
When populating the dvd/packages/ directory, create
a symlink to All/pkg-*.txz in the Latest/ directory.

This allows 'pkg bootstrap' to work out-of-box if
the REPOS_DIR environment is properly set.

Approved by: re (delphij)
Sponsored by: The FreeBSD Foundation

MFC r271480, r271483, r271491:

r271480:
Set PKG_CACHEDIR to an 'All/' directory one level lower
to fix 'pkg repo' generating repository metadata for the
on-disc packages.

r271483:
Fix duplicate PKG_ABI in the PKG_CACHEDIR path.

r271491:
Simplify dvd package population with pkg-1.3.

Approved by: re (rodrigc)
Sponsored by: The FreeBSD Foundation

MFC r266553, r266554:

r266553:
Add forward-compatibility glue with pkg-1.3:
- Use ASSUME_ALWAYS_YES=YES instead of ASSUME_ALWAYS_YES=1
since pkg-1.3 expects "yes" or "true" values.
- Before exporting PKG_ABI, strip extra characters from what
is parsed from 'pkg -vv'. This causes problems further down
when creating the packages directory for inclusion on the
dvd1.iso. Previously PKG_ABI would be 'freebsd:9:x86:64',
but now is '"freebsd:9:x86:64";' in pkg-1.3.

r266554:
Disable the main FreeBSD pkg(7) repositories in the dvd
repository configuration to avoid fetching from upstream
in case there may be conflicts.

Sponsored by: The FreeBSD Foundation

MFC r260772:
Update the pkg-stage target to be more compatible with pkg-1.2:

- Add a release-dvd.conf pkg(8) configuration file to override
the default FreeBSD.conf configuration.
- Remove architecture-specific pkg-stage.conf files, consolidate,
and move their contents to scripts/pkg-stage.sh.
- Use 'pkg -vv' to determine the ABI, which is used as the
cache directory.

Prior to these changes, it would be possible for pkg-stage to fetch
conflicting binary packages from multiple repositories.

Tested against: head@r260522, stable/10@r260522

Sponsored by: The FreeBSD Foundation

MFC r259246:
Prevent release build errors found during snapshot builds where if
NOPORTS=1, pkg-stage.sh cannot build the ports-mgmt/pkg port if
WITH_DVD=1.

Sponsored by: The FreeBSD Foundation

MFC r258786, r258796, r258797, r258847, r258853, r258949:

r258786:
Move OPTIONS_UNSET outside of the PBUILD_FLAGS variable, otherwise
the textproc/docproj port build fails.

r258796 (hrs):
- Prevent TARGET and TARGET_ARCH from being defined as empty when
TARGET="" and/or TARGET_ARCH="" is specified.
- Remove extra ().

r258797 (hrs):
Use standard CLEANFILES/CLEANDIRS and clean target in bsd.obj.mk.

r258847:
Provide reproducibility between builds by building pkg(8) from ports,
instead of using pkg-bootstrap.

This should resolve a problem that was discovered during 10.0-BETA4
freebsd-update(8) builds,

r258853:
Turn off the dvdrom target by default. dvd1.iso is now built by
specifying 'WITH_DVD=1' during 'make release'.

This caused some problems during the freebsd-update builds for
10.0-BETA4.

r258949:
Ensure WITH_DVD is not empty to prevent 'WITH_DVD= ' from evaluating
to true.

Approved by: re (hrs)
Sponsored by: The FreeBSD Foundation

MFC r258305, r258307, r258308, r258309, r258310, r258314, r258317,
r258319, r258320:

r258305:
Use the IMAGES variable to determine which image files to remove
as part of 'make -C /usr/src/release clean'.

r258307:
Add a script and configuration files to fetch pre-built packages
from pkg.FreeBSD.org for inclusion on release medium (dvd1.iso).

r258308:
Unconditionally copy the build host /etc/resolv.conf into
the chroot directory, since hostname resolution may be
needed in the case of building a dvd image (with packages)
and also setting 'NOPORTS=1'.

r258309:
Set the PKG_CACHEDIR directory to 'dvd/' instead of 'release/'
in preparation of adding a 'dvd1.iso' target.

r258310:
Add the 'dvd1.iso' target. This mimics the 'release.iso' target,
with the additional step of fetching packages for inclusion on the
dvd image.

The 'pkg-stage' target is used to run 'scripts/pkg-stage.sh' if
the '${TARGET}/pkg-stage.conf' configuration file exists (currently
only amd64 and i386).

Allow dvd1.iso to be skipped if NODVD=1.

r258314:
Fix how ABI is evaluated so it matches more than a dot-zero
case.

r258317:
Document the 'dvdrom' target.

r258319:
Remove WITHOUT_PROFILE=1 for the dvd1.iso medium.

r258320:
Simplify PKG_ABI for pkg-stage.sh.

Approved by: re (hrs)
Sponsored by: The FreeBSD Foundation

Add a script and configuration files to fetch pre-built packages
from pkg.FreeBSD.org for inclusion on release medium (dvd1.iso).

The script sources ${.CURDIR}/${TARGET}/pkg-stage.conf, which sets
several environment variables, such as the pkg(8) ABI, PACKAGESITE,
PKG_DBDIR, and PKG_CACHEDIR. PKG_CACHEDIR is set to the directory
on the release medium used by bsdconfig(8) (/packages/${ABI}). ABI
is determined by output of 'make -C /usr/src/release -V REVISION'.
See pkg.conf(5) for descripton on other variables set here.

The list of packages to include are set within the configuration
file.

The script and configuration files are intended to be run by the
'make dvd' target within the release directory, and assume the
release is built within a chroot environment (such as by using
release.sh).

Relevant updates to release/Makefile will follow.

Sponsored by: The FreeBSD Foundation