Find the repository from where a given repo was forked.

infer-upstream

Takes a repo name, and looks up the upstream repository. If there is an upstream repository, writes it to standard out. Otherwise writes nothing.

Usage:

noon@dev> infer-upstream -r scirate3 -u silky
[email protected]:draftable/scirate3.git

Another usage:

noon@dev> cd scirate3
noon@dev> git remote add upstream `infer-upstream --using-cwd`

A more interesting usage (and the reason I wrote this) is to use the upstream_everything.sh script. It performs the following task.

For all folders in a given directory:

• go into each one,
• if it is a github repo,
• look up the upstream repo,
• if we find it,
• set it as a new remote.

Usage:

noon@~> cd dev
noon@dev> git clone [email protected]:silky/infer-upstream
noon@dev> infer-upstream/upstream_everything.sh
...

With upstream set on your repos, you can then run fetch_upstreams.sh, if you like, which will bring down any incoming changes and give print out a short summary.

Example:

noon@dev>infer-upstream/fetch_upstreams.sh 
fetching upstream for Javascript-Voronoi ...
 1 file changed, 2 insertions(+), 2 deletions(-)

Notes:

• This script assumes every folder in the ~/dev directory is the clone of a Github repository.
• Github currently limits you to 60 unauthenticated API requests per hour; this approach uses one API request per folder.