e09eb3e2aa
Update to v4.2.0-rc3. Intent is to submit to Factory, and SLE-15-SP2 as well OBS-URL: https://build.opensuse.org/request/show/751303 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=513
71 lines
3.4 KiB
Plaintext
71 lines
3.4 KiB
Plaintext
The qemu package, and derived packages have a special maintenance workflow in
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order to support git based patching. Please use it in order to have changes
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you make be acceptable to the package maintainers.
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The qemu.spec file is generated from a qemu.spec.in template, so to make changes
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to the spec file (besides the script generated patch references), you'll need to
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edit the template, not the spec file. The spec file patch references are inserted
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by a script as described below.
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If you are not modifying any patches or their order, but just need to update the
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spec file from a changed template, run 'bash ./update_git.sh refresh'.
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If the set of patches is being modified, including their order, you will want to
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first run 'bash ./update_git.sh pkg2git', which makes the current package patch
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queue available in a local git branch named frombundle (see config.sh for the
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locations). This set of patches comes from a "bundle of git bundles", the
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bundles.tar.xz file, which is included as a package source file. You will then
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create an altered patch queue in the branch which corresponds to this release
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(eg: opensuse-4.2), using the frombundle branch as the starting point for your
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changes (eg perhaps start by doing git reset --hard frombundle, then cherry-pick
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upstream patches from there). Once you have the patch queue ready to go run
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'bash ./update_git.sh git2pkg' which updates the bundles.tar.xz file, as well as
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the spec and patch files.
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The maintainer and automation use another workflow mode dealing with packaging
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the latest upstream qemu. See 'LATEST' references in the scripts for details.
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** SPECIAL NOTE ABOUT CURRENT STATUS ***
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The current status as of 31 Oct 2019 is that for this incarnation of qemu
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packaging, the previous workflow which relied on the patches being in a shared
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git repo on github or gitlab is no longer supported. This new bundle based
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workflos is still a work in progress.
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If it isn't working right, please contact Bruce Rogers <brogers@suse.com>.
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*** END SPECIAL NOTE ***
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Additional Notes:
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Patches which are from an upstream git repo should have the commit id recorded
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just below the Subject line (after a blank line) as follows:
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Git-commit: <40-char-sha-id>
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If a patch is anticipated to be shortly included in upstream repo, mark that
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fact by doing the above with 40 0's, which will flag it as needing to be updated
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in the near future.
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Bug or feature tracking identifiers should also be added to the patch similarly,
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using the abbreviations identified here:
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http://en.opensuse.org/openSUSE:Packaging_Patches_guidelines#Current_set_of_abbreviations
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using the "Reference:" tag, with multiple entries comma separated.
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The ability to provide a conditional inclusion of a patch (eg based on
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architecture, is provided by using the "Include-If:" tag similarly, as follows:
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Include-If: %ifarch aarch64
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This will cause the patch application in the spec file to be done as follows:
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%ifarch aarch64
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%patch0013 -p1
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%endif
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A trick worth noting is, if a given git tracked patch is to be applied in a way
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that can't be done in the normal patching section of the spec file, you can still
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include the patch, and use it by name with the patch program elsewhere in the
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spec file by doing something such as:
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Include-If: %if 0%{?patch-possibly-applied-elsewhere}
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(this variable will remain undefined in the spec file) And then elsewhere in spec
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file, the actual patch (eg specially-handled-change.patch) is referenced as, eg:
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patch -p1 < %_sourcedir/specially-handled-change.patch
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