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| '''Upgradepath''' is a [[Packaging/NamingGuidelines#Package_Versioning|constraint]] that ensures ''the ability to upgrade from Fedora release N to Fedora release N+1''. | | '''[[AutoQA]] is now obsolete and replaced by [[Taskotron]].''' |
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| In other words no package dependencies may break when the user wants to upgrade his/her Fedora. That is achieved by requiring the higher Fedora release to contain at least the same or higher package build versions (in N-V-R sense) than the lower Fedora release.
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| [[AutoQA]] executes this test for any update that is proposed in [https://admin.fedoraproject.org/updates/ Bodhi] and reports the result using Bodhi comments at the update page. | |
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| {{admon/note|Does not apply for updates-testing|Upgradepath constraint is currently checked for main and stable updates repositories. It is [https://fedorahosted.org/autoqa/ticket/231 not checked] for updates-testing repository.}}
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| = Understanding failures =
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| This is a sample output of the upgradepath test, where <code>duplicity-0.6.14-1.fc14</code> was requested to be pushed to <code>dist-f14-updates</code> repository:
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| <pre>
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| ============================================================
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| duplicity-0.6.14-1.fc14 into dist-f14-updates
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| ============================================================
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| [ OK ] dist-f14
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| Latest package: duplicity-0.6.09-1.fc14.1
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| [INFO] dist-f15 + dist-f15-updates | |
| Latest package: duplicity-0.6.11-2.fc15
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| Latest pending package: duplicity-0.6.14-1.fc15
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| The pending package must be pushed together with the tested package, or else the upgrade path will be broken.
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| [FAIL] f16 + f16-updates | |
| Latest package: duplicity-0.6.11-2.fc16
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| Latest pending package: None
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| [ OK ] f17
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| Latest package: duplicity-0.7.0-1.fc17
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| Latest pending package: None
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| RESULT: FAILED
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| </pre>
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| The '''OK''' sections denote repositories where upgradepath constraint would be fulfilled after pushing the proposed update. For example it would be possible to upgrade from <code>dist-f14</code>, because it contains lower version of <code>duplicity</code> package. And it would be also possible to (directly) upgrade to <code>f17</code> repository, because it contains higher version of <code>duplicity</code> package.
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| The '''INFO''' section is almost the same as '''OK''', it just means we provided some information you should read. In this case the upgradepath constraint will be fulfilled only if the build proposed for <code>dist-f15-updates</code> is pushed at the same time as our proposed build for <code>dist-f14-updates</code>. This happens quite often, because package maintainers use to propose new package builds for several Fedora releases at once. It is good to know though that if you notice that these pending builds were not pushed simultaneously you should contact [[ReleaseEngineering|RelEng team]] and ask them to fix it, otherwise your package will have its upgrade path broken.
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| If you look closely at the '''FAIL''' section, you'll see, that the union of <code>f16</code> and <code>f16-updates</code> repositories contains only <code>duplicity-0.6.11-2.fc16</code>, which is lower version than currently proposed <code>duplicity-0.6.14-1.fc14</code> for <code>dist-f14-updates</code>. It fails because you wouldn't be able upgrade from F14 (through F15) to F16 correctly if the proposed update had been pushed.
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| == Upgradepath test algorithm ==
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| The formal description of the algorithm [[AutoQA]] uses for checking upgradepath constraint is here:
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| <pre>
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| == Pushing to main repository ==
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| Pushing PKG to F(N)-main means:
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| 1. PKG in F(lower)-main <= PKG to push
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| 2. PKG in F(higher)-main >= PKG to push
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| == Pushing to updates repository ==
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| Pushing PKG to F(N)-updates means:
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| 1. PKG in F(lower)-main <= PKG to push
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| 2. PKG in F(lower)-updates <= PKG to push
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| 3. PKG in F(higher)-main union F(higher)-updates union F(higher)-updates-pending => PKG to push
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| Note: If PKG doesn't exist in REPO, it also satisfies any condition
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| </pre>
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| = Fixing the failures =
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| The general guidelines for resolving failures include:
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| <ol>
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| <li>'''Consult packaging guidelines when in doubt how package build versions are compared.'''<br/>
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| See especially the [[Packaging:NamingGuidelines|Naming guidelines]].</li>
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| <li>'''Be conservative about karma auto-push when doing update for multiple releases.'''<br/>
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| If you enable karma auto-push for a proposed update for several Fedora releases, it can easily happen that a lower-Fedora-release update will be auto-pushed sooner than a higher-Fedora-release update. Then you will receive failures from upgradepath. The best approach is to enable karma auto-push just for the highest Fedora release and handle the rest manually (push lower release update only after a higher release updates are pushed/requested).</li>
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| <li>'''If you want to push a fix for an older Fedora but not for a newer one, do a proper minor release bump.'''<br/>
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| Read [[Packaging/NamingGuidelines#Minor_release_bumps_for_old_branches|Minor release bumps for old branches]] to learn more.</li>
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| </ol>
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| = Further help =
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| If you still don't understand why your update failed the test, or if you think there's something wrong in our test or its documentation, or if you have any other suggestions, please [[AutoQA#Communicate|contact us]].
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| [[Category:AutoQA tests]]
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