2013-04-26 02:58:45 +02:00
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#!/bin/bash
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if [ $# -ne 1 ]; then
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echo "Invalid arguments!"
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echo "$0 <commit to revert>"
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exit 1
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fi
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if [ -n "$(git status -uno -s --porcelain)" ]; then
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echo "You have unstashed changes. Please stash and then revert."
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git status -uno
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exit 1
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fi
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COMMIT=$1
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2013-04-26 05:27:39 +02:00
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SVN_REVISION=$(git svn find-rev "$COMMIT")
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if [ $? -ne 0 ]; then
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echo "Error! Could not find an svn revision for commit $COMMIT!"
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2013-04-26 02:58:45 +02:00
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exit 1
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fi
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# Grab the one line message for our revert commit message.
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ONE_LINE_MSG=$(git log --oneline $COMMIT -1 | cut -f2- -d " ")
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# Revert the commit.
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git revert --no-commit $COMMIT 2>/dev/null
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if [ $? -ne 0 ]; then
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echo "Error! Failed to revert commit $COMMIT. Resetting to head."
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git reset --hard HEAD
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exit 1
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fi
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# Create a template in our .git directory.
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TEMPLATE="`git rev-parse --git-dir`/git-svn-revert-template"
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cat > $TEMPLATE <<EOF
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Revert "$ONE_LINE_MSG"
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This reverts commit r$SVN_REVISION.
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EOF
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# Begin the commit but give our user an opportunity to edit it.
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git commit --file="$TEMPLATE" --edit
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if [ $? -ne 0 ]; then
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echo "Error! Failed to commit reverting commit for commit $COMMIT. Reverting to head."
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git reset --hard HEAD
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rm -rf $TEMPLATE
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exit 1
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fi
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rm -rf $TEMPLATE
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