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support/scripts/apply-patches.sh: do not apply patches with renames

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Patches with renames apply properly with patch >= 2.7, but not with
older patch versions. Since "git format-patch" by default generates
patches with renames, Buildroot developers often don't realize that
their patches will not apply properly on build machines that have
patch < 2.7. In order to prevent such a situation from happening
again, this commit adds some logic in apply-patches.sh to refuse
applying patches that contain renames.

Note that just searching for '^rename' is not sufficient, since the
patch commit message may contain the words "rename from" or "rename to"
as well. Therefore, the grep expression is made as accurate as possible,
checking both.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Arnout: spaces instead of tabs (suggested by Yann);
 extend commit message.]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Thomas Petazzoni 2017-06-24 21:59:36 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent b55ff5a7cd
commit 85f11d08c3
1 changed files with 5 additions and 0 deletions
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5
support/scripts/apply-patches.sh
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@ -113,6 +113,11 @@ function apply_patch {
echo " to be applied : ${path}/${patch}"
exit 1
fi
if grep -q "^rename from" ${path}/${patch} && \
grep -q "^rename to" ${path}/${patch} ; then
echo "Error: patch contains some renames, not supported by old patch versions"
exit 1
fi
echo "${path}/${patch}" >> ${builddir}/.applied_patches_list
${uncomp} "${path}/$patch" | patch -g0 -p1 -E -d "${builddir}" -t -N $silent
if [ $? != 0 ] ; then