How to run BFG to slim large repos

howTo_BFGrepo.sh

# How to run BFG to slim large repos: howToBFGrepo.sh
# ====================================================
# (20th November 2014)
# Author: Flic Anderson
# Written using Git Bash  v1.9.2; Windows 7; BFG Repo-Cleaner 1.11.8
# ~ standalone script to use in bash

# AIM: To remove stupidly large files from a repo that you've had in there for some time,
# .... figure out whether they are all over a certain size (eg. 500K) and that they are ALL deletable.
# .... delete what you can, and commit each deletion so it's recorded.  

# Follow instructions & run the following commands from the repo location (e.g: flicanderson@comp  ~/fufluns (master))

cd ~/fufluns

# download the bfg.jar file from http://rtyley.github.io/bfg-repo-cleaner/
# place it somewhere nearby (but not in the repo, or it'll be removed)
# put it somewhere like "~/New\ folder/bfg-1.11.8.jar"

# clone with mirror the repo in question (after backing it up elsewhere) into the main repo folder (~/fufluns/)

git clone --mirror https://github.com/FlicAnderson/fufluns.git
  # this creates a "fufluns.git" file in the repo directory (eg. ~/fufluns/fufluns.git)

# bring up bfg; shows the help and usage details. 
# first section is location of java.exe (usu program files), then " -jar " then location of bfg .jar file

C:/Program\ Files/Java/jre1.8.0_25/bin/java.exe -jar ~/New\ folder/bfg-1.11.8.jar

# edit the last command to clean out all files over a certain size (eg 1M, 500K, etc)

C:/Program\ Files/Java/jre1.8.0_25/bin/java.exe -jar ~/fufluns/bfg-1.11.8.jar –strip-blobs-bigger-than 500K fufluns.git

# this removes all FILES over 500KB, WHICH HAVE ALREADY BEEN REMOVED AND COMMITTED.
# If you haven't removed them all yet, it'll leave them alone and list them in an output file in a report 
# folder it creates. Open it, find the files, delete them and commit their deletion. If you do this, ensure you then:
  # git add fkds;ajfd.jpg
  # git commit -m "kljkhjfds"
  # git push origin master
  # DELETE THE FUFLUNS.GIT FOLDER
  # git clone --mirror https://github.com/FlicAnderson/fufluns.git
  # then re-run the bfg command above

# move to the mirror clone .git (prompt should show your location as "~/fufluns/fufluns.git (BASE: master)")

cd ~/fufluns.git

# update reflog 

git reflog expire --expire=now --all

# carry out garbage collection for all redundant things changed by bfg

git gc --prune=now --aggressive

# then push the changes! 
# this doesn't need "origin master" as you're currently in the mirror .git

git push 

# then delete the ~/fufluns folder
# then clone down a fresh copy

git clone https://github.com/FlicAnderson/fufluns.git

# The github repo size reported online via Settings>Repositories won't be accurate for a while
# this is due to their garbage collection happening at a later/different time. We ran ours manually.

# Enjoy your smaller, cleaner repo!