repo: Many enhancements

- Do a better job at finding repos
- Use common config
- Refer to init.bash in comments

repo

@@ -8,26 +8,28 @@
 #
 # So yeah. Here's this thing.
 #
-# GOTCHA: (also, setup instructions)
+# NOT WORKING?
 #
-# Bash scripts can't change the working directory of their callers. This is
-# right and proper, but we need to work around it in this case.
-#
-# To use this script, create a function in your .bashrc or .zshrc:
+# Since shell scripts can't change the working directories of their callers (as
+# is right and proper), this script can only do its job if it's called by a
+# function, e.g.:
 #
 #    repo() { cd $(/path/to/this/script $@) }
 #
+# If you add 'source /path/to/this/repo/init.bash' to your shell rc file (e.g.
+# ~/.zshrc), this (and perhaps some other goodies) will be set up for you.
+#
 
-REPO_BASE=${HOME}/src
+source $(dirname ${BASH_SOURCE[0]})/config.bash
 
-repos=$(find -s "${REPO_BASE}" -maxdepth 3 -mindepth 3 -type d -not -path "${REPO_BASE}/repo-tools/*" | sed "s|${REPO_BASE}/||")
+repos=$(find "${REPOSITORY_BASE}" -name '.git' | sed "s|${REPO_BASE}/||" | sed 's|.git$||' | sort)
 
 # Default to searching within github.com, because that's by far the most common
 # place for repos to be.
 # selected=$(echo "${repos}" | gum filter --header="Pick a repo" --prompt="Repo: " --height=20 --value "github.com/${1}")
 selected="$(echo "${repos}" | fzf -1 -0 -q "github.com/buildkite/${1}" --prompt="Repo: ")"
 
-echo "$REPO_BASE/$selected"
+echo "$REPOSITORY_BASE/$selected"
 
 # TODO: It could be super nice to bias in favour of more frequently selected options.
 #  For the last 500 uses (or so):