Move Several git files over to a new repo with history. Very optimistic about errors

gitmove_several.sh

#!/bin/bash

# $ ./gitmove [destGitRepo] [src_file] 
DEST_FOLDER=$1
# this will take all parameters AFTER the first. So you can give a list, or a glob (which is expanded into separate params)
SOURCE_FILES="${@:2}"

# SOURCE_FILE=$2
STARTING_FOLDER=$(pwd)

# files=("$@")
# FILES=($SOURCE_FILE)
# FILES=($1)
# FILES=/path/to/*
for FILE in $SOURCE_FILES
do
	echo "\n\n **********************************"
	echo "Processing "$FILE" file..."
	# back to starting folder
	cd $STARTING_FOLDER
	echo "Changing to $STARTING_FOLDER"

	# get the earliest hash of a source file to copy
	HASH=$(git log --format=%H $FILE | tail -1)

	# create patch files for that hash range for the given file ($1)
	# use the parent hash, so it includes the commit that generates the file
	git format-patch -o $DEST_FOLDER/tmp_patch $HASH^..HEAD $FILE

	# Optional - Apply the patch if you're ready...
	# apply the patches in the destination repo
	cd $DEST_FOLDER && git am tmp_patch/*.patch



	# FIXME: Have to delete or name and run patches by filename, or else patches will fail when the same ones are re-applied on the
	# next cycle
	# Optional - Auto-remove the patch folder
	echo "Deleting patch folder"
	rm -rf tmp_patch

done

# echo $files
# pushd $SOURCE_FILE
# echo $SOURCE_FILE


# for file in $files; do
# 	echo 'inside'
# 	echo $file
# done
# popd $SOURCE_FILE
# echo $HASH


# OPTIONAL - DON'T DO THIS if you want it in a different folder / file name in dest
# apply the patches in the destination repo
# cd $DEST_FOLDER && git am tmp_patch/*.patch


# If there are no errors, proceed

# bash doesn't allow changing folder for parent process


# apply the patches in the dest folder
#git am

# TODO:
# - how can we run multiple files through this?
# What happens when file is moved/renamed in source or target repo (after)?
# In target repo, it wipes history and blame for the file. LAME!!!!
# TODO: Find a solution for that.

# Is history preserved?
# What to do when file already exists in target repo?

TODO: Get this working with larger sets of files (Glob causes param length issues).

Consider making this an NPM CLI. Add lots of fixtures and tests...

Graceful failure as well...