From eaa51487cf25d9bc30d9c79cbe42c0e8761e67ed Mon Sep 17 00:00:00 2001
From: Chris Torek <torek@ixsystems.com>
Date: Thu, 24 Mar 2016 23:12:11 -0700
Subject: [PATCH] add magic and defaults for reference clones

If ${BUILD_ROOT}/.git-ref-path exists, set $GIT_REF_PATH
to its contents.  Otherwise default to looking in /build/gitrefs
(feel free to adjust this default).

While we're at it, ignore .git-ref-path and .profile-setting
files since they are per-build-tree and should never be
commited to this repository.
---
 .gitignore | 2 ++
 Makefile   | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/.gitignore b/.gitignore
index be38e2b..45610ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,8 @@ $RECYCLE.BIN/
 
 ### PROJECT SETTINGS ###
 _BE/
+.profile-setting
+.git-ref-path
 
 # Exlude compiled Sphinx docs
 /docs/*/_build/
diff --git a/Makefile b/Makefile
index 4df09e2..25fc814 100644
--- a/Makefile
+++ b/Makefile
@@ -42,6 +42,12 @@ MK := ${MAKE} -f ${BUILD_ROOT}/Makefile.inc1
 GIT_LOCATION != cat ${GIT_REPO_SETTING}
 .endif
 
+.if exists(${BUILD_ROOT}/.git-ref-path)
+GIT_REF_PATH != cat ${BUILD_ROOT}/.git-ref-path
+.elif exists(/build/gitrefs)
+GIT_REF_PATH ?= /build/gitrefs
+.endif
+
 .if exists(${PROFILE_SETTING})
 PROFILE != cat ${PROFILE_SETTING}
 .endif
@@ -58,6 +64,7 @@ PROFILE != cat ${PROFILE_SETTING}
 .export OBJDIR
 .export BUILD_STARTED
 .export GIT_REPO_SETTING
+.export GIT_REF_PATH
 .export PROFILE
 
 .BEGIN: