git-cache-meta

git-cache-meta.sh

#!/bin/sh -e

#git-cache-meta -- simple file meta data caching and applying.
#Simpler than etckeeper, metastore, setgitperms, etc.
#from http://www.kerneltrap.org/mailarchive/git/2009/1/9/4654694
#modified by n1k
# - save all files metadata not only from other users
# - save numeric uid and gid

# 2012-03-05 - added filetime, andris9

: ${GIT_CACHE_META_FILE=.git_cache_meta}
case $@ in
    --store|--stdout)
    case $1 in --store) exec > $GIT_CACHE_META_FILE; esac
    find $(git ls-files)\
        \( -printf 'chown %U %p\n' \) \
        \( -printf 'chgrp %G %p\n' \) \
        \( -printf 'touch -c -d "%AY-%Am-%Ad %AH:%AM:%AS" %p\n' \) \
        \( -printf 'chmod %#m %p\n' \) ;;
    --apply) sh -e $GIT_CACHE_META_FILE;;
    *) 1>&2 echo "Usage: $0 --store|--stdout|--apply"; exit 1;;
esac

instructions.md

source:

git-cache-meta --store

destination:

git-cache-meta --apply

s3.md

Download jgit.sh

Config

cat > ~/.jgit
accesskey: aws access key
secretkey: aws secret access key
<Ctrl-D>

Setup repo

git remote add origin amazon-s3://.jgit@bucket.name/repo-name.git

Push

jgit push origin master

Clone

jgit clone amazon-s3://.jgit@bucket.name/repo-name.git

Pull

jgit fetch
git merge origin/master

@Bananaman if you used pushd "${WHATEVER_DIR}" >/dev/null and then popd >/dev/null if any error occurred, you would still end up in the "original" directory without the extra output messages from those commands polluting the output.

@spoelstraethan

if you used pushd "${WHATEVER_DIR}" >/dev/null and then popd >/dev/null if any error occurred, you would still end up in the "original" directory without the extra output messages from those commands polluting the output.

Just to inform that pushd and popd are bashism and thus unportable. There is one more problem with pushd is that you do need to handle when pushd itself fails (e.g. when directory doesn't exist), and if you are not careful you would end up popping one more directory from the stack than needed (which could become a security vulnerability in certain applications).

If you need to return to the original directory, the safest as well as the simplest approach is to cd in a subshell, and exit the subshell when you are done or an error occurred in that directory. Like this:

func1 () {
    # Process current directory
    (
        set -e
        cd "$new_dir"
        # Process $new_dir
        # When an error occurs, this subshell exits because of the "set -e" command
    ) || return
    # Back to the directory that was current when entering the function
}