Blame SOURCES/BZ-1445751-yum-debug-dump-improve-repo-failure-handling.patch

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commit 61232e9f66cc64fffa8517678b6cf224d44b02ef
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Author: Michal Domonkos <mdomonko@redhat.com>
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Date:   Wed Jul 12 16:27:53 2017 +0200
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    yum-debug-dump: improve repo failure handling. BZ 1445751
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    Populate the repos prior to iterating over them in dump_repos().  This
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    fixes the following bugs:
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    1) KeyError when calling returnPackages() on a repo that was previously
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       disabled by the pkgSack invocation in the same loop due to
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       skip_if_unavailable=true (BZ 1445751)
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    2) One broken repo with skip_if_unavailable=false would cause all other
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       (even working) repos in the for loop to report the same error, thus
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       making the %%%%REPOS section useless
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diff --git a/yum-debug-dump.py b/yum-debug-dump.py
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index 67d943f..01ca338 100755
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--- a/yum-debug-dump.py
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+++ b/yum-debug-dump.py
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@@ -73,6 +73,26 @@ class YumDebugDump(yum.YumBase):
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     def dump_repos(self):
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         msg = "%%%%REPOS\n"
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+
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+        # Set up the sacks first, to capture and log any broken repos.  We
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+        # cannot yet call returnPackages() from this loop as that would lead to
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+        # a KeyError if some repo got disabled by pkgSack due to
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+        # skip_if_unavailable=true in a previous iteration.
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+        #
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+        # A failure means remaining repos were not processed, so we have to
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+        # retry the whole process ourselves by calling pkgSack again.  Since
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+        # the worst case scenario is that all the repos are broken, we have to
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+        # do this at least as many times as there are enabled repos.
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+        for repo in sorted(self.repos.listEnabled()):
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+            try:
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+                self.pkgSack
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+            except Errors.RepoError, e:
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+                msg += "Error accessing repo %s: %s\n" % (e.repo, str(e))
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+                self.repos.disableRepo(e.repo.id)
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+            else:
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+                break
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+
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+        # Dump the packages now
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         for repo in sorted(self.repos.listEnabled()):
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             try:
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                 msg += '%%%s - %s\n' % (repo.id, repo.urls[0])