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fix pre-commit diff reference

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This commit is contained in:
Alex Shinn 2020-07-28 20:03:36 +09:00
parent ed4ecd4dca
commit d22959a40e
1 changed files with 13 additions and 3 deletions
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16
.githooks/pre-commit
View file

@ -1,13 +1,23 @@
#!/bin/bash
if git rev-parse --verify HEAD >/dev/null 2>&1; then
against=HEAD
else
# Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi
# fail if we add any new lines to C or Scheme source containing a tab
if git diff --name-only | egrep '\.(cpp|h|scm|sld|stub)$' | xargs -d'\n' git diff -U0 -- | grep -q $'^+ *\t'; then
if git diff --name-only "$against" |\
egrep '\.(cpp|h|scm|sld|stub)$' |\
xargs -d'\n' git diff -U0 --no-color "$against" -- |\
grep -q $'^+ *\t'; then
echo "Error: Attempting to add a source file using tabs for indentation."
echo
echo -n " "
git diff --name-only |\
git diff --name-only "$against" |\
egrep '\.(cpp|h|scm|sld|stub)$' |\
xargs -d'\n' git diff -U0 -- |\
xargs -d'\n' git diff -U0 "$against" -- |\
grep $'^+ *\t' | head -1
echo
cat <<EOF