cpio: Run ptests under ptest user

Running these tests under root user on musl works ok but it emits
additional diagnostic

cpio: dir: Cannot change ownership to uid 0, gid 0: Not supported

Ideally its better to run this test suite under non-root user which
is often how these are run. Moreover, tests work on musl as well.

(From OE-Core rev: 22d19266269c28f596f031fcba8f2831c6465880)

(From OE-Core rev: 587e007d9febfe92fef434dea984d31642bb23a1)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/cpio/cpio-2.13/run-ptest

@@ -1,10 +1,3 @@
 #!/bin/sh
 
-# Define cpio test work dir
-WORKDIR=@PTEST_PATH@/tests/
-
-# Run test
-cd ${WORKDIR}
-./atconfig ./atlocal ./testsuite
-
-./testsuite 2>&1 | grep -E '[0-9]{1,3}: ' | sed -e 's/^.....//' -e '/[ok]$/s/^/PASS: /;/FAILED (.*)/s/^/FAIL: /;/skipped (.*)/s/^/SKIP: /;/expected failure/ s/^/PASS: /;/UNEXPECTED PASS/s/^/FAIL: /' -e 's/ok$//g' -e 's/FAILED.*//g' -e 's/skipped.*//g' -e 's/expected failure.*//g' -e 's/UNEXPECTED PASS.*//g'
+su -c ./test.sh ptest

meta/recipes-extended/cpio/cpio-2.13/test.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# Define cpio test work dir
+WORKDIR=@PTEST_PATH@/tests/
+
+# Run test
+cd ${WORKDIR}
+./atconfig ./atlocal ./testsuite
+
+./testsuite 2>&1 | grep -E '[0-9]{1,3}: ' | sed -e 's/^.....//' -e '/[ok]$/s/^/PASS: /;/FAILED (.*)/s/^/FAIL: /;/skipped (.*)/s/^/SKIP: /;/expected failure/ s/^/PASS: /;/UNEXPECTED PASS/s/^/FAIL: /' -e 's/ok$//g' -e 's/FAILED.*//g' -e 's/skipped.*//g' -e 's/expected failure.*//g' -e 's/UNEXPECTED PASS.*//g'

meta/recipes-extended/cpio/cpio_2.13.bb

@@ -14,6 +14,7 @@ SRC_URI = "${GNU_MIRROR}/cpio/cpio-${PV}.tar.gz \
            file://0001-Use-__alignof__-with-clang.patch \
            file://0001-Wrong-CRC-with-ASCII-CRC-for-large-files.patch \
            file://run-ptest \
+           file://test.sh \
            "
 
 SRC_URI[md5sum] = "389c5452d667c23b5eceb206f5000810"
@@ -57,9 +58,24 @@ do_install_ptest() {
     install --mode=755 ${B}/tests/atlocal ${D}${PTEST_PATH}/tests/
     install --mode=755 ${B}/tests/genfile ${D}${PTEST_PATH}/tests/
     install --mode=755 ${S}/tests/testsuite ${D}${PTEST_PATH}/tests/
-    sed -i "s#@PTEST_PATH@#${PTEST_PATH}#g" ${D}${PTEST_PATH}/run-ptest
+    install --mode=755 ${WORKDIR}/test.sh ${D}${PTEST_PATH}/test.sh
+    sed -i "s#@PTEST_PATH@#${PTEST_PATH}#g" ${D}${PTEST_PATH}/test.sh
 }
 
+# ptest.bbclass currently chowns the ptest directory explicitly, so we need to
+# change permission after that has happened so the ptest user can write a
+# temporary directory.
+do_install_ptest_base:append() {
+    chgrp -R ptest ${D}${PTEST_PATH}/
+    chmod -R g+w ${D}${PTEST_PATH}/
+}
+
+# The tests need to run as a non-root user, so pull in the ptest user
+DEPENDS:append:class-target = "${@bb.utils.contains('PTEST_ENABLED', '1', ' ptest-runner', '', d)}"
+PACKAGE_WRITE_DEPS += "ptest-runner"
+
+RDEPENDS:${PN}-ptest += "ptest-runner"
+
 PACKAGES =+ "${PN}-rmt"
 
 FILES:${PN}-rmt = "${sbindir}/rmt*"