仅使用预提交验证已修改文件中的更改，而不是验证整个文件

Question

我已经在我的存储库上应用了一个预提交挂钩，我想要做的是使用 rubocop 检查语法，但仅限于我尝试提交的更改。

目前，预提交正在使用 rubocop 检查我已修改的所有文件的样式和规则，并且由于某些旧代码根据 rubocop 无效，因此不允许我提交。

我有什么办法可以更改它以仅检查已更改的代码，如果该代码按照 rubocop 正确，则允许提交。

Answer 1

有什么办法可以改变它以仅检查已更改的代码

重要的是这一行：

# get the list of files which have been modified
git diff-tree -r --name-only

---

hook sample

#!/bin/sh

# Check to see if this is the first commit in the repository or not
if git rev-parse --verify HEAD >/dev/null 2>&1
then
    # We compare our changes against the previous commit
    against=HEAD^
else
    # Initial commit: diff against an empty tree object
    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

# Redirect output to screen.
exec 1>&2

# Get the list of updated files
files = $(git diff-tree -r --name-only $against);

#
#... Loop over the files and do whatever you want to do
#   

# personal touch :-)
echo "                                         "
echo "                   |ZZzzz                "
echo "                   |                     "
echo "                   |                     "
echo "      |ZZzzz      /^\            |ZZzzz  "
echo "      |          |~~~|           |       "
echo "      |        |-     -|        / \      "
echo "     /^\       |[]+    |       |^^^|     "
echo "  |^^^^^^^|    |    +[]|       |   |     "
echo "  |    +[]|/\/\/\/\^/\/\/\/\/|^^^^^^^|   "
echo "  |+[]+   |~~~~~~~~~~~~~~~~~~|    +[]|   "
echo "  |       |  []   /^\   []   |+[]+   |   "
echo "  |   +[]+|  []  || ||  []   |   +[]+|   "
echo "  |[]+    |      || ||       |[]+    |   "
echo "  |_______|------------------|_______|   "
echo "                                         "
echo "                                         "
echo "      Your code is bad.!!!               "
echo "      Do not ever commit again           "
echo "                                         "
echo "${default}"

# set the exit code to 0 or 1 based upon your needs
# 0 = good to push
# 1 = exit without pushing.
exit 0;