Allow to pass project from external directory

This patch allows to pass directory with source code of
projects to conteiner during build. This is useful when
it is not possible to clone project in anonymous mode.

Change-Id: Id157ad614b790a87d8c8910a438a29887f9fc46e

Dockerfile

@@ -32,6 +32,7 @@ ARG NOVNC_REF=${NOVNC_REF:-v1.0.0}
 ARG SPICE_REPO=${SPICE_REPO:-https://gitlab.freedesktop.org/spice/spice-html5.git}
 ARG SPICE_REF=${SPICE_REF:-spice-html5-0.1.6}
 
+ADD data /tmp/
 COPY scripts /opt/loci/scripts
 ADD bindep.txt pydep.txt $EXTRA_BINDEP $EXTRA_PYDEP /opt/loci/
 

data/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

scripts/clone_project.sh

@@ -2,8 +2,10 @@
 
 set -eux
 
-git clone ${PROJECT_REPO} /tmp/${PROJECT}
-pushd /tmp/${PROJECT}
-git fetch ${PROJECT_REPO} ${PROJECT_REF}
-git checkout FETCH_HEAD
-popd
+if [[ ! -d /tmp/${PROJECT} ]]; then
+  git clone ${PROJECT_REPO} /tmp/${PROJECT}
+  pushd /tmp/${PROJECT}
+  git fetch ${PROJECT_REPO} ${PROJECT_REF}
+  git checkout FETCH_HEAD
+  popd
+fi