如何限制提交时的文件大小？

此预提交的挂钩将执行文件大小检查：

.git / hooks / pre-commit

#!/bin/sh
hard_limit=$(git config hooks.filesizehardlimit)
soft_limit=$(git config hooks.filesizesoftlimit)
: ${hard_limit:=10000000}
: ${soft_limit:=500000}

list_new_or_modified_files()
{
    git diff --staged --name-status|sed -e '/^D/ d; /^D/! s/.\s\+//'
}

unmunge()
{
    local result="${1#\"}"
    result="${result%\"}"
    env echo -e "$result"
}

check_file_size()
{
    n=0
    while read -r munged_filename
    do
        f="$(unmunge "$munged_filename")"
        h=$(git ls-files -s "$f"|cut -d' ' -f 2)
        s=$(git cat-file -s "$h")
        if [ "$s" -gt $hard_limit ]
        then
            env echo -E 1>&2 "ERROR: hard size limit ($hard_limit) exceeded: $munged_filename ($s)"
            n=$((n+1))
        elif [ "$s" -gt $soft_limit ]
        then
            env echo -E 1>&2 "WARNING: soft size limit ($soft_limit) exceeded: $munged_filename ($s)"
        fi
    done

    [ $n -eq 0 ]
}

list_new_or_modified_files | check_file_size

上面的脚本必须另存为.git/hooks/pre-commit启用执行权限（chmod +x .git/hooks/pre-commit）。

默认的软（警告）和硬（错误）大小限制设置为500,000和10,000,000字节，但可以分别通过hooks.filesizesoftlimit和hooks.filesizehardlimit设置覆盖它们：

$ git config hooks.filesizesoftlimit 100000
$ git config hooks.filesizehardlimit 4000000