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Add a style-enforcing pre-commit hook
Closes raceintospace#8
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| #!/bin/bash | ||
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| indent() { | ||
| sed 's/^/ /' | ||
| } | ||
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| # Check for existence of astyle, and error out if not present. | ||
| if [ ! -x "$(which astyle)" ]; then | ||
| echo "git pre-commit hook:" | ||
| echo "Did not find astyle, please install it before continuing." | ||
| exit 1 | ||
| fi | ||
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| ASTYLE_PARAMETERS="-p -H -f -j -z2 -c -k3 -U -A8" | ||
| FILE_PATTERN="^(src|test)/.*\.(c|cpp|h)$" | ||
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| echo "-----> Checking code with astyle" | ||
| for file in `git diff-index --cached --name-only HEAD --diff-filter=ACMR | egrep $FILE_PATTERN`; do | ||
| # nf is the temporary checkout. This makes sure we check against the | ||
| # revision in the index (and not the checked out version). | ||
| temp_checkout=`git checkout-index --temp ${file} | cut -f 1` | ||
| formatted=`mktemp /tmp/${temp_checkout}.formatted` || exit 1 | ||
| diff=`mktemp /tmp/${temp_checkout}.diff` || exit 1 | ||
| astyle ${ASTYLE_PARAMETERS} < $temp_checkout > $formatted 2>/dev/null | ||
| failed=$? | ||
| diff -u -p "${temp_checkout}" "${formatted}" > ${diff} | ||
| different=$? | ||
| if [ $failed != 0 ]; then | ||
| echo " `astyle` failed on: $file" | ||
| echo " Please investigate this situation. You'll want:" | ||
| echo | ||
| echo " astyle ${ASTYLE_PARAMETERS} $file" | ||
| elif [ $different != 0 ]; then | ||
| echo " Code style error in: $file" | ||
| cat "${diff}" | indent | indent | ||
| echo | ||
| echo " If the whole file is to be committed, you can format and re-stage it with:" | ||
| echo | ||
| echo " astyle ${ASTYLE_PARAMETERS} -n $file; git add $file" | ||
| rm "${temp_checkout}" "${formatted}" "${diff}" | ||
| exit 1 | ||
| else | ||
| rm "${temp_checkout}" "${formatted}" "${diff}" | ||
| fi | ||
| done | ||
| echo " astyle passed" | ||
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