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Bug 764365 - =sys-apps/portage-3.0.12 rebuilds packages before the package triggering the rebuild is upgraded
Summary: =sys-apps/portage-3.0.12 rebuilds packages before the package triggering the ...
Status: CONFIRMED
Alias: None
Product: Portage Development
Classification: Unclassified
Component: Core - Dependencies (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Portage team
URL: https://forums.gentoo.org/viewtopic-p...
Whiteboard:
Keywords:
Depends on:
Blocks: build-order
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Reported: 2021-01-07 19:08 UTC by Torsten Kaiser
Modified: 2021-07-21 02:25 UTC (History)
2 users (show)

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Package list:
Runtime testing required: ---

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Description Torsten Kaiser 2021-01-07 19:08:45 UTC 
I just synced my tree and today an upgrade for dev-python/cffi was included, that triggered rebuilds:
The following packages are causing rebuilds:
  (dev-python/cffi-1.14.4:0/1.14.4::gentoo, ebuild scheduled for merge) causes rebuilds for:
    (dev-python/bcrypt-3.2.0:0/0::gentoo, ebuild scheduled for merge)
    (dev-python/cryptography-3.2.1:0/0::gentoo, ebuild scheduled for merge)

The problem is, that cryptography was rebuild before this cffi update, so that it could not fix to cause for this rebuild.


Reproducible: Always

Steps to Reproduce:
1. emerge --sync
2. emerge -auDNv world

Actual Results:  
ariolc ~ # emerge -auDNv world

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild     U  ] dev-cpp/tbb-2020.3::gentoo [2019.8::gentoo] USE="-debug -examples" ABI_MIPS="(-n32) (-n64) (-o32)" ABI_S390="(-32) (-64)" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild     U  ] x11-misc/shared-mime-info-2.0-r2::gentoo [1.15::gentoo] 0 KiB
[ebuild     U  ] dev-libs/expat-2.2.10::gentoo [2.2.8::gentoo] USE="(split-usr) unicode -examples -static-libs" ABI_MIPS="(-n32) (-n64) (-o32)" ABI_RISCV="(-lp64%) (-lp64d%)" ABI_S390="(-32) (-64)" ABI_X86="(64) -32 (-x32)" ELIBC="(-FreeBSD)" 0 KiB
[ebuild     U  ] media-libs/openjpeg-2.4.0:2/7::gentoo [2.3.1-r1:2/7::gentoo] USE="doc -static-libs -test" ABI_MIPS="(-n32) (-n64) (-o32)" ABI_S390="(-32) (-64)" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild     U  ] dev-libs/libverto-0.3.1-r1::gentoo [0.3.1::gentoo] USE="glib libev threads -libevent -static-libs -tevent" ABI_MIPS="(-n32) (-n64) (-o32)" ABI_S390="(-32) (-64)" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild  N     ] dev-python/backports-zoneinfo-0.2.1-r1::gentoo  USE="-test" PYTHON_TARGETS="python3_8 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild  rR    ] dev-python/cryptography-3.2.1::gentoo  USE="-idna -libressl -test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] dev-python/sphinx-3.3.1-r1::gentoo [3.2.1::gentoo] USE="doc latex -test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) -python3_7 (-python3_6%)" 0 KiB
[ebuild  r  U  ] dev-python/cffi-1.14.4:0/1.14.4::gentoo [1.14.0-r3:0/1.14.0::gentoo] USE="doc -test" PYTHON_TARGETS="python3_8 python3_9 (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] dev-python/pyopenssl-20.0.0-r1::gentoo [19.1.0-r1::gentoo] USE="doc -test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] dev-python/pygments-2.7.3::gentoo [2.7.2::gentoo] USE="doc -test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] dev-python/Babel-2.9.0::gentoo [2.8.1::gentoo] USE="doc -test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] sys-apps/busybox-1.32.0-r1::gentoo [1.31.1-r3::gentoo] USE="ipv6 math mdev static syslog -debug -livecd -make-symlinks -pam -savedconfig (-selinux) -sep-usr -systemd" 0 KiB
[ebuild     U  ] sys-fs/xfsprogs-5.10.0-r1::gentoo [5.10.0::gentoo] USE="icu nls (split-usr) -libedit" 0 KiB
[ebuild  rR    ] dev-python/bcrypt-3.2.0::gentoo  USE="-test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] net-libs/nodejs-14.15.4:0/14::gentoo [14.15.1:0/14::gentoo] USE="doc icu npm snapshot ssl system-icu system-ssl -debug -inspector -pax_kernel -systemtap -test" CPU_FLAGS_X86="sse2" 32,516 KiB
[ebuild     U  ] dev-python/zope-interface-5.2.0::gentoo [5.1.2::gentoo] USE="-test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] dev-python/jaraco-packaging-8.1.1-r1::gentoo [8.1.0-r2::gentoo] USE="doc -test" PYTHON_TARGETS="python3_8 python3_9 (-pypy3) (-python3_6) -python3_7" 0 KiB
[ebuild     U  ] dev-python/cheroot-8.5.0::gentoo [8.4.8::gentoo] USE="-test" PYTHON_TARGETS="python3_8 python3_9 (-python3_6) -python3_7" 0 KiB

Total: 19 packages (16 upgrades, 1 new, 2 reinstalls), Size of downloads: 32,516 KiB

The following packages are causing rebuilds:

  (dev-python/cffi-1.14.4:0/1.14.4::gentoo, ebuild scheduled for merge) causes rebuilds for:
    (dev-python/bcrypt-3.2.0:0/0::gentoo, ebuild scheduled for merge)
    (dev-python/cryptography-3.2.1:0/0::gentoo, ebuild scheduled for merge)

Would you like to merge these packages? [Yes/No] yes
>>> Verifying ebuild manifests
>>> Running pre-merge checks for net-libs/nodejs-14.15.4
>>> Emerging (1 of 19) dev-cpp/tbb-2020.3::gentoo
>>> Emerging (2 of 19) x11-misc/shared-mime-info-2.0-r2::gentoo
>>> Installing (1 of 19) dev-cpp/tbb-2020.3::gentoo
>>> Installing (2 of 19) x11-misc/shared-mime-info-2.0-r2::gentoo
>>> Emerging (3 of 19) dev-libs/expat-2.2.10::gentoo
>>> Installing (3 of 19) dev-libs/expat-2.2.10::gentoo
>>> Emerging (4 of 19) media-libs/openjpeg-2.4.0::gentoo
>>> Installing (4 of 19) media-libs/openjpeg-2.4.0::gentoo
>>> Emerging (5 of 19) dev-libs/libverto-0.3.1-r1::gentoo
>>> Installing (5 of 19) dev-libs/libverto-0.3.1-r1::gentoo
>>> Emerging (6 of 19) dev-python/backports-zoneinfo-0.2.1-r1::gentoo
>>> Installing (6 of 19) dev-python/backports-zoneinfo-0.2.1-r1::gentoo
>>> Emerging (7 of 19) dev-python/cryptography-3.2.1::gentoo
>>> Installing (7 of 19) dev-python/cryptography-3.2.1::gentoo
>>> Emerging (8 of 19) dev-python/sphinx-3.3.1-r1::gentoo
>>> Installing (8 of 19) dev-python/sphinx-3.3.1-r1::gentoo
>>> Emerging (9 of 19) dev-python/cffi-1.14.4::gentoo
>>> Installing (9 of 19) dev-python/cffi-1.14.4::gentoo
>>> Emerging (10 of 19) dev-python/pyopenssl-20.0.0-r1::gentoo
>>> Installing (10 of 19) dev-python/pyopenssl-20.0.0-r1::gentoo
>>> Emerging (11 of 19) dev-python/pygments-2.7.3::gentoo
>>> Installing (11 of 19) dev-python/pygments-2.7.3::gentoo
>>> Emerging (12 of 19) dev-python/Babel-2.9.0::gentoo
>>> Installing (12 of 19) dev-python/Babel-2.9.0::gentoo
>>> Emerging (13 of 19) sys-apps/busybox-1.32.0-r1::gentoo
>>> Emerging (14 of 19) sys-fs/xfsprogs-5.10.0-r1::gentoo
>>> Emerging (15 of 19) dev-python/bcrypt-3.2.0::gentoo
>>> Emerging (16 of 19) net-libs/nodejs-14.15.4::gentoo
>>> Installing (15 of 19) dev-python/bcrypt-3.2.0::gentoo
>>> Emerging (17 of 19) dev-python/zope-interface-5.2.0::gentoo
>>> Installing (17 of 19) dev-python/zope-interface-5.2.0::gentoo
>>> Installing (14 of 19) sys-fs/xfsprogs-5.10.0-r1::gentoo
>>> Emerging (18 of 19) dev-python/jaraco-packaging-8.1.1-r1::gentoo
>>> Installing (18 of 19) dev-python/jaraco-packaging-8.1.1-r1::gentoo
>>> Emerging (19 of 19) dev-python/cheroot-8.5.0::gentoo
>>> Installing (19 of 19) dev-python/cheroot-8.5.0::gentoo
>>> Installing (16 of 19) net-libs/nodejs-14.15.4::gentoo
>>> Installing (13 of 19) sys-apps/busybox-1.32.0-r1::gentoo
>>> Jobs: 19 of 19 complete                         Load avg: 2.24, 3.35, 3.41


Expected Results:  
First upgrading dev-pyton/cffi, only then rebuilding dev-python/cryptography and dev-python/bcrypt.

An emerge -a --depclean after this seemingly successful word update showed:
Calculating dependencies... done!
 * Dependencies could not be completely resolved due to
 * the following required packages not being installed:
 * 
 *   >=dev-python/cffi-1.8:0/1.14.0=[-python_single_target_python3_6(-),-python_single_target_python3_7(-),python_targets_python3_8(-),-python_single_target_python3_8(-),python_targets_python3_9(-),-python_single_target_python3_9(-)] pulled in by:
 *     dev-python/cryptography-3.2.1
 * 
 * Have you forgotten to do a complete update prior to depclean? The

A second emerge -auDNv showed that cryptography still needed to be rebuild and after that --depclean did work correctly again.

The bug seems purely the order the packages where build/merged. Instead of cffi -> cryptography+bcrypt portage choose the wrong order of cryptography -> cffi -> bcrypt.
My guess would be some kind of circular dependency between cffi -> sphinx -> cryptography -> cffi, because I have USE=doc active. But moving a rebuild merge before the packages that causes the rebuild can never be the correct solution for this kind of dependency chains.

I did see something similar on my ~amd64 system, but do not recall what packages were part of that. But now it is the second time I noticed a wrong order wrt. to rebuilds, so I'm filing this bug.