LTP: Add skipgen skipfile support to ltp

Create a helper function in sh-test-lib to handle the mechanics of
generating a skipfile, that will be re-usable by kselftest.

Add the following arguments to ltp.sh:
    [-b board]
    [-g branch]
    [-e environment]

When the skipfile argument passed via -S ends in ".yaml", a skipfile
will be generated using skipgen. Board, branch, and environment are
optional arguments that get passed to skipgen.

The resulting skipfile is automatically printed to stdout after being
generated.

Change-Id: Ib45d11acfa85241dbe5dfa7173e75cb7754a6892
Signed-off-by: Dan Rue <dan.rue@linaro.org>

1 files changed, 26 insertions, 1 deletions

diff --git a/automated/lib/sh-test-lib b/automated/lib/sh-test-lib
index c4e4591..1e02795 100755
--- a/automated/lib/sh-test-lib
+++ b/automated/lib/sh-test-lib
@@ -268,7 +268,7 @@ validate_check_sum() {
 
 convert_to_mb() {
     [ "$#" -ne 2 ] && error_msg "Usage: convert_to_mb value units"
-    if ! echo "$1" | egrep -q "^[0-9.]+$"; then
+    if ! echo "$1" | grep -E -q "^[0-9.]+$"; then
         error_msg "The first argument isn't a number"
     fi
     value="$1"
@@ -356,3 +356,28 @@ create_out_dir() {
     mkdir -p "${OUTPUT}"
     [ -d "${OUTPUT}" ] || error_msg "Could not create output directory ${OUTPUT}"
 }
+
+generate_skipfile() {
+    # Generate a skipfile and set the SKIPFILE variable based on SKIPFILE_YAML,
+    # BOARD, BRANCH, and ENVIRONMENT.
+    #
+    # In:
+    #   SKIPFILE_YAML: (required) skipgen/yaml formatted skipfile
+    #   SKIPFILE_PATH: (required) destination file for generated skipfile
+    #   BOARD: (optional) board name to pass to skipgen
+    #   BRANCH: (optional) branch name to pass to skipgen
+    #   ENVIRONMENT: (optional) environment name to pass to skipgen
+    #
+    info_msg "Generating a skipfile based on ${SKIPFILE_YAML}"
+    detect_abi
+    SKIPGEN_ARGS=""
+    test -n "${BOARD}" && SKIPGEN_ARGS="${SKIPGEN_ARGS} --board ${BOARD}"
+    test -n "${BRANCH}" && SKIPGEN_ARGS="${SKIPGEN_ARGS} --branch ${BRANCH}"
+    test -n "${ENVIRONMENT}" && SKIPGEN_ARGS="${SKIPGEN_ARGS} --environment ${ENVIRONMENT}"
+    # shellcheck disable=SC2086
+    ../../bin/${abi}/skipgen ${SKIPGEN_ARGS} "${SKIPFILE_YAML}" > "${SKIPFILE_PATH}"
+    test $? -eq 0 || error_msg "skipgen failed to generate a skipfile"
+    info_msg "Using the following generated skipfile contents (until EOF):"
+    cat "${SKIPFILE_PATH}"
+    info_msg "EOF"
+}