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#!/bin/bash
#
# Checkout branche a submodule.
#
# Parameters
BASENAME="`basename $0`"
# Checkout the branch containing a commit
function checkout_branch {
# Check if we are in a detached HEAD
if git branch | grep -q '* (HEAD detached'; then
# Determine the commit we're in
local commit="`git log -n 1 | head -1 | cut -d ' ' -f 2`"
# Get the first remote branch that contains our commit
#
# In the future some criteria might be stablished to determine how to decide
# if the comment is present in more than one branch. Which one to prioritize?
# A topic branch in the form of "feature/"? The "develop" branch?
local branch="`git branch -r --contains $commit 2> /dev/null | grep -v 'HEAD' | head -1 | sed -e 's|^[^/]*/||'`"
# Checkout to the given commit
if [ ! -z "$branch" ]; then
git checkout $branch
else
echo "$BASENAME: no such branch containing dangling commit $commit"
fi
fi
}
# Dispatch
checkout_branch
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