added dev docs

README-dev.md

@@ -0,0 +1,77 @@
+
+Development Environment
+=======================
+
+Install Go versions 1.6.2+ or 1.7 for your platform.
+
+Fork `github.com/umbel/pilosa` to your own account. The forked repo will be private.
+
+In a shell, export your work directory as `$GOPATH`:
+
+```sh
+export GOPATH=$HOME/Work/pilosa/server
+```
+
+Update `$PATH` to get access to Pilosa command line tools:
+
+```sh
+export PATH=$PILOSA_HOME/bin:$PATH
+```
+
+Create a directory (note that we use `github.com/umbel`, NOT `github.com/USER`) and clone your own Pilosa repo:
+
+```sh
+mkdir -p ${GOPATH}/src/github.com/umbel && cd $_
+git clone git@github.com:${USER}/pilosa.git
+```
+
+`cd` to your pilosa directory:
+
+```sh
+cd ${GOPATH}/src/github.com/umbel/pilosa
+```
+
+Install `godep` to manage dependencies:
+
+```sh
+go get -u github.com/tools/godep
+```
+
+Install Pilosa command line tools:
+
+```sh
+go install github.com/umbel/pilosa/...
+```
+
+Running `pilosa` should now run a Pilosa instance.
+
+In order to sync your fork with upstream Umbel repo, add an *upstream* to your repo:
+
+```sh
+cd ${GOPATH}/src/github.com/umbel/pilosa
+git remote add upstream git@github.com:umbel/pilosa.git
+```
+
+Before starting to work on a task, sync your branch with the upstream:
+
+```sh
+git fetch upstream
+git checkout master
+git merge upstream/master
+```
+
+Create a branch for the task:
+
+```sh
+git checkout -b a-branch-for-the-task
+```
+
+Update the code in the branch, and commit it.
+
+Push it to your own repo:
+
+```sh
+git push --set-upstream origin a-branch-for-the-task
+```
+
+All left to do is creating a pull request on github.com.