# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@free.fr>
# Date 1358811158 -3600
# Node ID 9b991363c01c72bda0909639534e932979353075
# Parent  15f57d843296e244487ac0845a73247f9d6749b8
samples: check if update is needed

Add a ct-ng action to check if samples needs being updated.
This will be usefull when the config options change.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

diff -r 15f57d843296 -r 9b991363c01c ct-ng.comp
--- a/ct-ng.comp	Tue Jan 22 00:34:15 2013 +0100
+++ b/ct-ng.comp	Tue Jan 22 00:32:38 2013 +0100
@@ -9,6 +9,7 @@
     samples=$( "${COMP_WORDS[0]}" list-samples-short 2>/dev/null )
     show_samples=$(echo "${samples}" |sed -r -e 's/(^| )/\1show-/g;')
     build_samples=$(echo "${samples}" |sed -r -e 's/(^| )/\1build-/g;')
+    check_samples=$(echo "${samples}" |sed -r -e 's/(^| )/\1check-/g;')
 
     steps=$(${COMP_WORDS[0]} list-steps 2>/dev/null |awk '$1 == "-" { print $2; }')
     start_steps=$(echo "${steps}" |sed -r -e 's/($| )/\1+/;')
@@ -17,14 +18,15 @@
     actions='help menuconfig oldconfig saveconfig extractconfig
              defconfig savedefconfig
              build build. build-all build-all.
-             wiki-samples list-samples list-samples-short list-steps
+             wiki-samples list-samples list-samples-short check-samples
+             list-steps
              show-tuple show-all show-config
              clean distclean updatetools
              tarball version'
 
     vars="RESTART= STOP= PREFIX= V= DEFCONFIG="
 
-    ct_ng_opts="${samples} ${show_samples} ${build_samples}
+    ct_ng_opts="${samples} ${show_samples} ${build_samples} ${check_samples}
                 ${steps} ${start_steps} ${stop_steps}
                 ${actions} ${vars}"
 
diff -r 15f57d843296 -r 9b991363c01c samples/samples.mk
--- a/samples/samples.mk	Tue Jan 22 00:34:15 2013 +0100
+++ b/samples/samples.mk	Tue Jan 22 00:32:38 2013 +0100
@@ -79,6 +79,22 @@
 	    printf "%s\n" "$${s}";          \
 	done
 
+# Check one sample
+PHONY += $(patsubst %,check-%,$(CT_SAMPLES))
+$(patsubst %,check-%,$(CT_SAMPLES)): config_files
+	@export KCONFIG_CONFIG=$$(pwd)/.config.sample;                                  \
+	 CT_NG_SAMPLE=$(call sample_dir,$(patsubst check-%,%,$(@)))/crosstool.config;   \
+	 $(CONF) --defconfig=$${CT_NG_SAMPLE} $(KCONFIG_TOP) >/dev/null;                \
+	 $(CONF) --savedefconfig=$$(pwd)/.defconfig $(KCONFIG_TOP) >/dev/null;          \
+	 old_sha1=$$( sha1sum "$${CT_NG_SAMPLE}" |cut -d ' ' -f 1 );                    \
+	 new_sha1=$$( sha1sum .defconfig |cut -d ' ' -f 1 );                            \
+	 if [ $${old_sha1} != $${new_sha1} ]; then                                      \
+	    echo "$(patsubst check-%,%,$(@)) needs update";                             \
+	 fi
+	@rm -f .config.sample* .defconfig
+
+check-samples: $(patsubst %,check-%,$(CT_SAMPLES))
+
 PHONY += wiki-samples
 wiki-samples: wiki-samples-pre $(patsubst %,wiki-%,$(CT_SAMPLES)) wiki-samples-post