Prefer RCRC environment variable over ~/.rcrc

* Centralize configuration loading in rcm.sh(.in)
* Check for readability, not just existence

Add RCRC notes to all manpages. Putting the environment variables in a
table lines them up more neatly and definitively, across all output
formats, and also follows the examples used by e.g. BSD ls(1).

1 files changed, 6 insertions, 0 deletions

diff --git a/share/rcm.sh.in b/share/rcm.sh.in
index e01ec59..2af2418 100644
--- a/share/rcm.sh.in
+++ b/share/rcm.sh.in
@@ -116,3 +116,9 @@ run_hooks() {
     done
   fi
 }
+
+: ${RCRC:=$HOME/.rcrc}
+
+if [ -r "$RCRC" ]; then
+  . "$RCRC"
+fi