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Revision as of 16:05, 18 November 2024 by Mikelo2 (talk | contribs)


Switch to git-core

Summary

Packages that only require git binary should depend on git-core and not on the git package.

Owner

Current status

  • Targeted release: Fedora Linux 42
  • Last updated: 2024-11-18
  • [Announced]
  • [<will be assigned by the Wrangler> Discussion thread]
  • FESCo issue: <will be assigned by the Wrangler>
  • Tracker bug: <will be assigned by the Wrangler>
  • Release notes tracker: <will be assigned by the Wrangler>

Detailed Description

Many package have either requirement or build requirement for the git binary. The git package is complex and is divided in mulitple subpackages. The subpackage that contains the git binary, that is enough for most of the use cases, is part of the git-core subpackage.

In a fresh rawhide image git-core package installs 10 packages and requires 8 MiB, while git package requires 77 packages and 19 MiB.

The proposed change would be to open Pull Requests against each package to switch to git-core and, when possible, test it before the PR is accepted.

Currently around 230 packages have git as BuildRequires and another 60 as Requires. Verified using latest spec archive snapshot available. 

$ cd /tmp/
$ wget https://src.fedoraproject.org/lookaside/rpm-specs-latest.tar.xz
$ tar xf rpm-specs-latest.tar.xz
$ cd /tmp/rpm-specs

$ grep -E '^BuildRequires:\s*git$' *.spec |wc -l
236

$ grep -E '^Requires:\s*git$' *.spec |wc -l
61
  • Installing git-core
# dnf install git-core
Updating and loading repositories:
Repositories loaded.
Package                  Arch    Version                  Repository        Size
Installing:
 git-core                x86_64  2.47.0-1.fc42            rawhide       22.6 MiB
Installing dependencies:
 expat                   x86_64  2.6.4-1.fc42             rawhide      285.5 KiB
 less                    x86_64  668-1.fc42               rawhide      406.4 KiB
 libcbor                 x86_64  0.11.0-2.fc41            rawhide       73.9 KiB
 libedit                 x86_64  3.1-53.20240808cvs.fc41  rawhide      244.1 KiB
 libfdisk                x86_64  2.40.2-8.fc42            rawhide      362.9 KiB
 libfido2                x86_64  1.15.0-2.fc41            rawhide      238.2 KiB
 openssh                 x86_64  9.9p1-5.fc42             rawhide        1.4 MiB
 openssh-clients         x86_64  9.9p1-5.fc42             rawhide        2.7 MiB
 util-linux              x86_64  2.40.2-8.fc42            rawhide        3.7 MiB

Transaction Summary:
 Installing:        10 packages

Total size of inbound packages is 8 MiB. Need to download 8 MiB.
After this operation, 32 MiB extra will be used (install 32 MiB, remove 0 B).
  • Installing git
# dnf install git
Updating and loading repositories:
Repositories loaded.
Package                  Arch    Version                  Repository        Size
Installing:
 git                     x86_64  2.47.0-1.fc42            rawhide       85.2 KiB
Installing dependencies:
 expat                   x86_64  2.6.4-1.fc42             rawhide      285.5 KiB
 git-core                x86_64  2.47.0-1.fc42            rawhide       22.6 MiB
 git-core-doc            noarch  2.47.0-1.fc42            rawhide       17.2 MiB
 groff-base              x86_64  1.23.0-7.fc41            rawhide        3.8 MiB
 less                    x86_64  668-1.fc42               rawhide      406.4 KiB
 libcbor                 x86_64  0.11.0-2.fc41            rawhide       73.9 KiB
 libedit                 x86_64  3.1-53.20240808cvs.fc41  rawhide      244.1 KiB
 libfdisk                x86_64  2.40.2-8.fc42            rawhide      362.9 KiB
 libfido2                x86_64  1.15.0-2.fc41            rawhide      238.2 KiB
 ncurses                 x86_64  6.5-2.20240629.fc41      rawhide      627.3 KiB
 openssh                 x86_64  9.9p1-5.fc42             rawhide        1.4 MiB
 openssh-clients         x86_64  9.9p1-5.fc42             rawhide        2.7 MiB
 perl-AutoLoader         noarch  5.74-512.fc42            rawhide       20.5 KiB
 perl-B                  x86_64  1.89-512.fc42            rawhide      498.0 KiB
 perl-Carp               noarch  1.54-511.fc41            rawhide       46.6 KiB
 perl-Class-Struct       noarch  0.68-512.fc42            rawhide       25.4 KiB
 perl-Data-Dumper        x86_64  2.189-512.fc41           rawhide      111.7 KiB
 perl-Digest             noarch  1.20-511.fc41            rawhide       35.3 KiB
 perl-Digest-MD5         x86_64  2.59-5.fc41              rawhide       59.8 KiB
 perl-DynaLoader         x86_64  1.56-512.fc42            rawhide       32.1 KiB
 perl-Encode             x86_64  4:3.21-511.fc41          rawhide        4.7 MiB
 perl-Errno              x86_64  1.38-512.fc42            rawhide        8.4 KiB
 perl-Error              noarch  1:0.17029-16.fc41        rawhide       77.3 KiB
 perl-Exporter           noarch  5.78-511.fc41            rawhide       54.3 KiB
 perl-Fcntl              x86_64  1.18-512.fc42            rawhide       49.0 KiB
 perl-File-Basename      noarch  2.86-512.fc42            rawhide       14.0 KiB
 perl-File-Find          noarch  1.44-512.fc42            rawhide       41.9 KiB
 perl-File-Path          noarch  2.18-511.fc41            rawhide       63.5 KiB
 perl-File-Temp          noarch  1:0.231.100-511.fc41     rawhide      162.3 KiB
 perl-File-stat          noarch  1.14-512.fc42            rawhide       12.5 KiB
 perl-FileHandle         noarch  2.05-512.fc42            rawhide        9.3 KiB
 perl-Getopt-Long        noarch  1:2.58-2.fc41            rawhide      144.5 KiB
 perl-Getopt-Std         noarch  1.14-512.fc42            rawhide       11.2 KiB
 perl-Git                noarch  2.47.0-1.fc42            rawhide       64.0 KiB
 perl-HTTP-Tiny          noarch  0.090-1.fc42             rawhide      154.4 KiB
 perl-IO                 x86_64  1.55-512.fc42            rawhide      151.1 KiB
 perl-IO-Socket-IP       noarch  0.42-512.fc41            rawhide       98.7 KiB
 perl-IO-Socket-SSL      noarch  2.089-1.fc42             rawhide      703.3 KiB
 perl-IPC-Open3          noarch  1.22-512.fc42            rawhide       22.5 KiB
 perl-MIME-Base32        noarch  1.303-21.fc41            rawhide       30.7 KiB
 perl-MIME-Base64        x86_64  3.16-511.fc41            rawhide       46.1 KiB
 perl-Net-SSLeay         x86_64  1.94-7.fc41              rawhide        1.3 MiB
 perl-POSIX              x86_64  2.20-512.fc42            rawhide      235.1 KiB
 perl-PathTools          x86_64  3.91-511.fc41            rawhide      180.0 KiB
 perl-Pod-Escapes        noarch  1:1.07-511.fc41          rawhide       24.9 KiB
 perl-Pod-Perldoc        noarch  3.28.01-512.fc41         rawhide      163.7 KiB
 perl-Pod-Simple         noarch  1:3.45-511.fc41          rawhide      560.9 KiB
 perl-Pod-Usage          noarch  4:2.03-511.fc41          rawhide       84.8 KiB
 perl-Scalar-List-Utils  x86_64  5:1.68-1.fc42            rawhide      148.9 KiB
 perl-SelectSaver        noarch  1.02-512.fc42            rawhide        2.2 KiB
 perl-Socket             x86_64  4:2.038-511.fc41         rawhide      124.0 KiB
 perl-Storable           x86_64  1:3.32-511.fc41          rawhide      232.4 KiB
 perl-Symbol             noarch  1.09-512.fc42            rawhide        6.8 KiB
 perl-Term-ANSIColor     noarch  5.01-512.fc41            rawhide       97.5 KiB
 perl-Term-Cap           noarch  1.18-511.fc41            rawhide       29.3 KiB
 perl-TermReadKey        x86_64  2.38-23.fc41             rawhide       64.1 KiB
 perl-Text-ParseWords    noarch  3.31-511.fc41            rawhide       13.6 KiB
 perl-Text-Tabs+Wrap     noarch  2024.001-511.fc41        rawhide       22.6 KiB
 perl-Time-Local         noarch  2:1.350-511.fc41         rawhide       69.0 KiB
 perl-URI                noarch  5.31-1.fc42              rawhide      257.0 KiB
 perl-base               noarch  2.27-512.fc42            rawhide       12.5 KiB
 perl-constant           noarch  1.33-512.fc41            rawhide       26.2 KiB
 perl-if                 noarch  0.61.000-512.fc42        rawhide        5.8 KiB
 perl-interpreter        x86_64  4:5.40.0-512.fc42        rawhide      122.3 KiB
 perl-lib                x86_64  0.65-512.fc42            rawhide        8.5 KiB
 perl-libnet             noarch  3.15-512.fc41            rawhide      289.4 KiB
 perl-libs               x86_64  4:5.40.0-512.fc42        rawhide        9.9 MiB
 perl-locale             noarch  1.12-512.fc42            rawhide        6.5 KiB
 perl-mro                x86_64  1.29-512.fc42            rawhide       45.6 KiB
 perl-overload           noarch  1.37-512.fc42            rawhide       71.5 KiB
 perl-overloading        noarch  0.02-512.fc42            rawhide        4.8 KiB
 perl-parent             noarch  1:0.242-1.fc42           rawhide       10.0 KiB
 perl-podlators          noarch  1:6.0.2-2.fc41           rawhide      317.5 KiB
 perl-vars               noarch  1.05-512.fc42            rawhide        3.9 KiB
 util-linux              x86_64  2.40.2-8.fc42            rawhide        3.7 MiB
Installing weak dependencies:
 perl-NDBM_File          x86_64  1.17-512.fc42            rawhide       32.5 KiB

Transaction Summary:
 Installing:        77 packages

Total size of inbound packages is 19 MiB. Need to download 19 MiB.
After this operation, 75 MiB extra will be used (install 75 MiB, remove 0 B).



Feedback

This change has been already proposed for packit in PR1307, that was accepted upstream and will be part of F42.

Benefit to Fedora

For users it will reduce the amount of packages installed as transient dependency of the main package.

For developers it should make builds a few seconds faster. Tests with podman on a local machine (i7-1270P) show 1 to 6 seconds less are required to install git-core vs git.

Scope

  • Proposal owners:
  • Other developers:
  • Policies and guidelines: N/A (not needed for this Change)
  • Trademark approval: N/A (not needed for this Change)
  • Alignment with the Fedora Strategy:

Upgrade/compatibility impact

Early Testing (Optional)

Do you require 'QA Blueprint' support? Y/N

How To Test

  • Switch package to use git-core and test git related functionality.


User Experience

Dependencies

None.


Contingency Plan

  • Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
  • Contingency deadline: N/A (not a System Wide Change)
  • Blocks release? N/A (not a System Wide Change)


Documentation

N/A (not a System Wide Change)

Release Notes

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