mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-28 22:20:37 +00:00
39dd163cdb
When the commit is not in the tree at all, find-rev returns 0 and prints an empty string. We need to catch that problem too, when trying to revert. Adding a list of possible problems, so that you can easily and quickly correct without having to edit the script again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237516 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
1.6 KiB
Bash
Executable File
65 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
if [ $# -ne 1 ]; then
|
|
echo "Invalid arguments!"
|
|
echo "$0 <rNNNNNN | git-hash>"
|
|
exit 1
|
|
fi
|
|
|
|
if [ -n "$(git status -uno -s --porcelain)" ]; then
|
|
echo "You have unstashed changes. Please stash and then revert."
|
|
git status -uno
|
|
exit 1
|
|
fi
|
|
|
|
COMMIT=$1
|
|
OTHER=$(git svn find-rev "$COMMIT")
|
|
if [ $? -ne 0 ] || [ "$OTHER" = "" ]; then
|
|
echo "Error! Could not find an svn/git revision for commit $COMMIT!"
|
|
echo
|
|
echo "Possible problems are:"
|
|
echo " * Your revision number ($COMMIT) is wrong"
|
|
echo " * This tree is not up to date (before that commit)"
|
|
echo " * This commit in in another three (llvm, clang, compiler-rt, etc)"
|
|
exit 1
|
|
fi
|
|
|
|
if [ -n "$(echo $COMMIT | grep '^r[0-9]\+')" ]; then
|
|
SVN=`echo $COMMIT | sed -e 's/^r//'`
|
|
GIT=$OTHER
|
|
else
|
|
SVN=$OTHER
|
|
GIT=$COMMIT
|
|
fi
|
|
|
|
# Grab the one line message for our revert commit message.
|
|
ONE_LINE_MSG=$(git log --oneline $GIT -1 | cut -f2- -d " ")
|
|
|
|
# Revert the commit.
|
|
git revert --no-commit $GIT 2>/dev/null
|
|
if [ $? -ne 0 ]; then
|
|
echo "Error! Failed to revert commit r$SVN. Resetting to head."
|
|
git reset --hard HEAD
|
|
exit 1
|
|
fi
|
|
|
|
# Create a template in our .git directory.
|
|
TEMPLATE="`git rev-parse --git-dir`/git-svn-revert-template"
|
|
cat > $TEMPLATE <<EOF
|
|
Revert "$ONE_LINE_MSG"
|
|
|
|
This reverts commit r$SVN.
|
|
EOF
|
|
|
|
# Begin the commit but give our user an opportunity to edit it.
|
|
git commit --file="$TEMPLATE" --edit
|
|
if [ $? -ne 0 ]; then
|
|
echo "Error! Failed to commit reverting commit for commit r$SVN. Reverting to head."
|
|
git reset --hard HEAD
|
|
rm -rf $TEMPLATE
|
|
exit 1
|
|
fi
|
|
|
|
rm -rf $TEMPLATE
|
|
|