Build avoidance fixes

1) Build avoidance fails on a clean workspace because directory
$MY_WORKSPACE/tmp doesn't exist when mktemp needs to
create a forth subdir under that path.

Add a 'mkdir -p $MY_WORKSPACE/tmp' to ensure it exists
prior to mktemp.

2) Failed to rebuild kmods after a kernel change and
building with build-avoidance enabled.  The problem was
a missing dependency cache that would have listed
the kmods as having dependencies on the kernel.
Reusing kmods from a prior build in conjunction with
a rebuilt kernel results int load with unusable kmods
due to a key mismatch.

Add the dependancy-cache to the list of artifacts to
syncronize as part of build avoidance.  A primed
dependency cache will allow build-pkgs to determine
that kmods must be rebuilt when the kernel has changed.

3) Make sure $MY_WORKSPACE/$BUILD_TYPE/repo
symlink exists after a build avoidance build.
If no packages require a rebuild, it was missing.

4) Fix an error message that was puzzling while debugging
the above issues.

Closes-Bug: 1864110
Change-Id: Ia912b2e3e110efbe69004d7978109ebb089d684b
Signed-off-by: Scott Little <scott.little@windriver.com>

build-data/build_avoidance_source

@@ -10,7 +10,7 @@
 #
 BUILD_AVOIDANCE_SRPM_DIRECTORIES="inputs srpm_assemble rpmbuild/SRPMS rpmbuild/SOURCES"
 BUILD_AVOIDANCE_SRPM_FILES=""
-BUILD_AVOIDANCE_RPM_DIRECTORIES="results rpmbuild/RPMS rpmbuild/SPECS"
+BUILD_AVOIDANCE_RPM_DIRECTORIES="results rpmbuild/RPMS rpmbuild/SPECS repo/cgcs-tis-repo/dependancy-cache"
 BUILD_AVOIDANCE_RPM_FILES=".platform_release"
 
 

build-tools/build-avoidance-utils.sh

@@ -35,6 +35,10 @@
 # BUILD_AVOIDANCE_FILE_TRANSFER="my-supported-prototcol"
 #
 
+BUILD_AVOIDANCE_UTILS_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}" )" )"
+
+source "${BUILD_AVOIDANCE_UTILS_DIR}/git-utils.sh"
+
 BUILD_AVOIDANCE_USR=""
 BUILD_AVOIDANCE_HOST=""
 BUILD_AVOIDANCE_DIR=""
@@ -778,6 +782,22 @@ build_avoidance () {
         return 1
     fi
 
+    if [ ! -d $MY_WORKSPACE/$BUILD_TYPE ]; then
+        mkdir -p $MY_WORKSPACE/$BUILD_TYPE
+        if [ $? -ne 0 ]; then
+            >&2 echo "Error: $FUNCNAME (${LINENO}): Failed to create directory $MY_WORKSPACE/$BUILD_TYPE"
+            return 1
+        fi
+    fi
+
+    if [ ! -L $MY_WORKSPACE/$BUILD_TYPE ]; then
+        ln -s $MY_REPO $MY_WORKSPACE/$BUILD_TYPE/repo
+        if [ $? -ne 0 ]; then
+            >&2 echo "Error: $FUNCNAME (${LINENO}): Failed to create symlink $MY_WORKSPACE/$BUILD_TYPE/repo -> $MY_REPO"
+            return 1
+        fi
+    fi
+
     build_avoidance_pre_clean $BUILD_TYPE
     if [ $? -ne 0 ]; then
         >&2 echo "Error: $FUNCNAME (${LINENO}): build_avoidance_pre_clean $BUILD_TYPE"

build-tools/build-rpms-parallel

@@ -1838,6 +1838,7 @@ update_spec_cache () {
 
 echo "Find the list of packages we must compile"
 
+mkdir -p $MY_WORKSPACE/tmp/
 NEED_BUILD_DIR=$(mktemp -d $MY_WORKSPACE/tmp/$USER-$ME-need-build-XXXXXX)
 if [ $? -ne 0 ] || [ "x$NEED_BUILD_DIR" == "x" ]; then
     echo "Failed to create temp directory under $MY_WORKSPACE/tmp"

build-tools/build-rpms-serial

@@ -1598,6 +1598,7 @@ update_spec_cache () {
 
 echo "Find the list of packages we must compile"
 
+mkdir -p $MY_WORKSPACE/tmp/
 NEED_BUILD_DIR=$(mktemp -d $MY_WORKSPACE/tmp/$USER-$ME-need-build-XXXXXX)
 if [ $? -ne 0 ] || [ "x$NEED_BUILD_DIR" == "x" ]; then
     echo "Failed to create temp directory under $MY_WORKSPACE/tmp"

build-tools/build-srpms-common.sh

@@ -119,7 +119,7 @@ md5sums_from_input_vars () {
         if [ "x$COPY_LIST" != "x" ]; then
             ABS_COPY_LIST=$(readlink -f $COPY_LIST)
             if [ $? -ne 0 ]; then
-                >&2  echo "ERROR: $FUNCNAME (${LINENO}): readlink -f '$COPY_LIST' -type f"
+                >&2  echo "ERROR: $FUNCNAME (${LINENO}): readlink -f '$COPY_LIST'"
                 return 1
             fi