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meta:hooks: Refactor pre-commit + check renaming

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Refactor the script to match my coding style more and update the
comments.
When checking the filenames for non-ASCII characters, check also
renaming of files instead of only additions.
This commit is contained in:
druckdev
2020-10-24 20:04:30 +02:00
parent 07a9f80c19
commit 3c6c37f235
1 changed files with 28 additions and 31 deletions
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59
meta/git/hooks/pre-commit
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@@ -1,49 +1,46 @@
#!/bin/sh #!/bin/sh
# #
# An example hook script to verify what is about to be committed. # A hook script to verify what is about to be committed.
# Called by "git commit" with no arguments. The hook should # Called by "git commit" with no arguments. The hook should exit with non-zero
# exit with non-zero status after issuing an appropriate message if # status after issuing an appropriate message if it wants to stop the commit.
# it wants to stop the commit.
# #
# To enable this hook, rename this file to "pre-commit". # To enable this hook, save this file in ".git/hooks/pre-commit".
if git rev-parse --verify HEAD >/dev/null 2>&1 die() {
then printf "$1" >&2
exit ${2:-1}
}
if git rev-parse --verify HEAD >/dev/null 2>&1; then
against=HEAD against=HEAD
else else
# Initial commit: diff against an empty tree object # Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904 against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi fi
# If you want to allow non-ASCII filenames set this variable to true.
allownonascii=$(git config --bool hooks.allownonascii)
# Redirect output to stderr. # Redirect output to stderr.
exec 1>&2 exec 1>&2
# Cross platform projects tend to avoid non-ASCII filenames; prevent # Check that all filenames include only ASCII characters.
# them from being added to the repository. We exploit the fact that the allownonascii=$(git config --bool hooks.allownonascii)
# printable range starts at the space character and ends with tilde. if [ "$allownonascii" != "true" ]; then
if [ "$allownonascii" != "true" ] && # We exploit the fact that the printable range starts at the space character
# and ends with tilde.
# Note that the use of brackets around a tr range is ok here, (it's # Note that the use of brackets around a tr range is ok here, (it's
# even required, for portability to Solaris 10's /usr/bin/tr), since # even required, for portability to Solaris 10's /usr/bin/tr), since
# the square bracket bytes happen to fall in the designated range. # the square bracket bytes happen to fall in the designated range.
test $(git diff --cached --name-only --diff-filter=A -z $against | num_nonascii=$(
LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0 git diff --cached --name-only --diff-filter=AR -z $against \
then | LC_ALL=C tr -d '[ -~]\0' \
cat <<\EOF | wc -c
Error: Attempt to add a non-ASCII file name. )
if [ $num_nonascii != 0 ]; then
This can cause problems if you want to work with people on other platforms. printf "Rename files to only include ASCII characters.\n" >&2
die "Or set hooks.allownonascii to true.\n"
To be portable it is advisable to rename the file. fi
If you know what you are doing you can disable this check using:
git config hooks.allownonascii true
EOF
exit 1
fi fi
# If there are whitespace errors, print the offending file names and fail. # Check for whitespace errors.
exec git diff-index --check --cached $against -- if ! git diff-index --check --cached $against --; then
die
fi