functions.sh: hook for local download directory

If the user defines the environment variable "LOCALDLDIR" before calling
init-and-build.sh, conf/site.conf will have a DL_DIR variable added to it
defined as the string in $LOCALDLDIR.

This allows a user to specify a local, pre-existing download directory to use
when performing local OE builds instead of having a separate download area for
each such build.

Change-Id: I7e116e153da898d27ba2b2bb62d5858ab3c97fc3
Signed-off-by: Trevor Woerner <trevor.woerner@linaro.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/functions.sh b/functions.sh
index 462d6bd..0df7cf1 100755
--- a/functions.sh
+++ b/functions.sh
@@ -24,6 +24,7 @@ show_setup()
     echo "Manifest groups: $manifest_groups"
     echo "Init env: $init_env"
     echo "Verbose: $bitbake_verbose"
+    echo "Local download directory: $LOCALDLDIR"
 
     if [ $external_url ]; then
         echo "External toolchain URL: $external_url"
@@ -176,6 +177,15 @@ fi
 
 # enable a distro feature that is compatible with the minimal goal we have
 echo 'DISTRO_FEATURES = "pam x11 alsa argp ext2 largefile usbgadget usbhost xattr nfs zeroconf opengl ${DISTRO_FEATURES_LIBC} ${DISTRO_FEATURES_INITMAN}"' >>conf/site.conf
+
+# allow the user to specify a local, pre-existing download directory
+if [ -n "$LOCALDLDIR" ]; then
+    cat >> conf/site.conf <<EOF
+
+# use a pre-existing download directory
+DL_DIR = "$LOCALDLDIR"
+EOF
+fi
 }
 
 conf_toolchain()