.git/objects/pack下pack文件很大，但是目前仓库并没有大文件

#!/bin/bash
#set -x 

usage() {
echo "Usage: $0 [path] [lines]"
echo "  path: local git repository"
echo "  lines: how much files to show&remove, default 100"
echo
echo "eg1: $0 ~/local_repo 200"
echo "eg2: $0 ."
}
if [[ "$1" == "-h" || "$1" == "--help" ]]; then
    usage
    exit 0
fi

# 原教程： https://www.jianshu.com/p/fe3023bdc825
cd $1
head_lines=${2:-100}

list(){
# Shows you the largest objects in your repo's pack file. Written for osx.
# @see http://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
# @author Antony Stubbs

# set the internal field spereator to line break, so that we can iterate easily over the verify-pack output
IFS=$'\n';

# list all objects including their size, sort by size, take top 10
objects=`git verify-pack -v .git/objects/pack/pack-*.idx | grep -v chain | sort -k3nr | head -n $head_lines`

output="NO.,raw,pack,SHA,path"
i=0
for y in $objects
do
    i=$((i+1))
    # extract the size in bytes
    size=$((`echo $y | cut -f 5 -d ' '`/1024))
    # extract the compressed size in bytes
    compressedSize=$((`echo $y | cut -f 6 -d ' '`/1024))
    # extract the SHA
    sha=`echo $y | cut -f 1 -d ' '`
    # find the objects location in the repository tree
    fileLoc=`git rev-list --all --objects | grep $sha`
    #lineBreak=`echo -e "\n"`
    output="${output}\n${i},${size},${compressedSize},${fileLoc}"
done

echo -e $output | column -t -s ', '
}
list_hint() {
echo "Remember the first number of files to be deleted, then press q to exit.
请记住要删除前多少个文件，然后按q退出。

All sizes are in kB's. The pack column is the size of the object, compressed, inside the pack file.
所有大小均以kB为单位。“pack”列：pack内，raw文件压缩后的大小。"
}

rm_local() {
git filter-branch --force --index-filter "git rm -rf --cached --ignore-unmatch $*" --prune-empty --tag-name-filter cat -- --all
}

rm_all() {
rm_local "${files[*]}"
set -x
rm -rf .git/refs/original/
git reflog expire --expire=now --all
git gc --prune=now
git gc --aggressive --prune=now
set +x

cmd_danger="pushd ${1} && \
git push origin $(git rev-parse --abbrev-ref HEAD) --force && \
git remote prune origin && \
popd"

echo "$cmd_danger" | xclip -selection clipboard && copied_en="

标签：文件,git,--,lines,echo,objects,pack	

From： https://www.cnblogs.com/nolca/p/18667113