From 57ba300be4ac7b932748d32466f653d1975282a2 Mon Sep 17 00:00:00 2001
From: James Slagle <jslagle@redhat.com>
Date: Tue, 14 Jan 2014 16:51:49 -0500
Subject: [PATCH] Symlink correct element install type

The source-repositories element will now symlink the install scripts
corresponding to the set install type for an element into the install.d
directory.

Different install types are implemented by elements by writing scripts to do
the install type under install.d/<element-name>-<install-type>-install
directories.

For example, the nova element would provide:

nova/install.d/nova-package-install/74-nova
nova/install.d/nova-source-install/74-nova

source-repositories will create the following symlink for the package
install type:

$TMP_HOOKS_PATH/install.d/74-nova -> nova-package-install/74-nova

Or, for the source install type:

$TMP_HOOKS_PATH/install.d/74-nova -> nova-source-install/74-nova

Change-Id: I1bfaf39e5a98b2af904fbc6d674dbada30b27ed9
---
 elements/source-repositories/README.md        | 25 +++++++++++++++++++
 .../extra-data.d/98-source-repositories       | 17 +++++++++++--
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/elements/source-repositories/README.md b/elements/source-repositories/README.md
index 309746e60..f72168f03 100644
--- a/elements/source-repositories/README.md
+++ b/elements/source-repositories/README.md
@@ -45,6 +45,31 @@ it will be renamed to \<destination\>
 The package type indicates the element should install from packages onto the
 root filesystem of the image build during the install.d phase.
 
+Git and Tarballs are treated as source installs.  If the element provides an
+<element-name>-source-install directory under it's install.d hook directory,
+symlinks to the scripts in that directory will be created under install.d for
+the image build.  Alternatively for the package install type, if the element
+provides an <element-name>-package-install directory, symlinks will be created
+for those scripts instead.
+
+For example, the nova element would provide:
+
+    nova/install.d/nova-package-install/74-nova
+    nova/install.d/nova-source-install/74-nova
+
+source-repositories will create the following symlink for the package install
+type:
+
+    install.d/74-nova -> nova-package-install/74-nova
+
+Or, for the source install type:
+
+    install.d/74-nova -> nova-source-install/74-nova
+
+All other scripts that exist under install.d for an element will be executed as
+normal. This allows common install code to live in a script outside of
+<element-name>-package-install or <element-name>-source-install.
+
 If multiple elements register a source location with the same <destination>
 then source-repositories will exit with an error. Care should therefore be taken
 to only use elements together that download source to different locations.
diff --git a/elements/source-repositories/extra-data.d/98-source-repositories b/elements/source-repositories/extra-data.d/98-source-repositories
index 644a52e1f..3b14ef57c 100755
--- a/elements/source-repositories/extra-data.d/98-source-repositories
+++ b/elements/source-repositories/extra-data.d/98-source-repositories
@@ -108,12 +108,25 @@ function get_repos_for_element(){
                 return 1
                 ;;
             esac
+
             # Capture the in-instance repository path for later review / other
             # elements (like a pypi dependency cache).
             echo "$REPOPATH" | sudo dd of=$TMP_MOUNT_PATH/etc/dib-source-repositories oflag=append conv=notrunc
+
             # Save the $REPOTYPE used so that it can be used later by install.d
-            mkdir -p $TMP_HOOKS_PATH/environment.d
-            echo "export DIB_REPOTYPE_${REPONAME//-/_}=$REPOTYPE" >> $TMP_HOOKS_PATH/environment.d/01-source-repositories-environment
+            if [ "$REPOTYPE" = "package" ]; then
+                REPOINSTALLTYPE="package"
+            else
+                REPOINSTALLTYPE="source"
+            fi
+
+            # Create symlink for correct install type
+            pushd $TMP_HOOKS_PATH/install.d
+            if [ -e $REPONAME-$REPOINSTALLTYPE-install ]; then
+                ln -sf $REPONAME-$REPOINSTALLTYPE-install/* .
+            fi
+            popd
+
         else
             echo "Couldn't parse '$line' as a source repository"
             return 1