classes/package*: Add support for PACKAGE_WRITE_DEPS

Add a new variable to allow markup of postinstall (and preinst)
script dependnecies on native/cross tools.

If your postinstall can execute at rootfs creation time rather than on
target but depends on a native tool in order to execute, you need to
list that tool in PACKAGE_WRITE_DEPENDS.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

4 files changed, 11 insertions, 0 deletions

diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index 568b85c12a..0068a50258 100644
--- a/meta/classes/package.bbclass
+++ b/meta/classes/package.bbclass
@@ -54,6 +54,14 @@ ALL_MULTILIB_PACKAGE_ARCHS = "${@all_multilib_tune_values(d, 'PACKAGE_ARCHS')}"
 # rpm is used for the per-file dependency identification
 PACKAGE_DEPENDS += "rpm-native"
 
+
+# If your postinstall can execute at rootfs creation time rather than on
+# target but depends on a native/cross tool in order to execute, you need to
+# list that tool in PACKAGE_WRITE_DEPENDS. Target package dependencies belong
+# in the package dependencies as normal, this is just for native/cross support
+# tools at rootfs build time.
+PACKAGE_WRITE_DEPS ??= ""
+
 def legitimize_package_name(s):
     """
     Make sure package names are legitimate strings
diff --git a/meta/classes/package_deb.bbclass b/meta/classes/package_deb.bbclass
index 68eca61a26..6ce008f1ac 100644
--- a/meta/classes/package_deb.bbclass
+++ b/meta/classes/package_deb.bbclass
@@ -351,6 +351,7 @@ python do_package_write_deb () {
 do_package_write_deb[dirs] = "${PKGWRITEDIRDEB}"
 do_package_write_deb[cleandirs] = "${PKGWRITEDIRDEB}"
 do_package_write_deb[umask] = "022"
+do_package_write_deb[depends] += "${@oe.utils.build_depends_string(d.getVar('PACKAGE_WRITE_DEPS'), 'do_populate_sysroot')}"
 addtask package_write_deb after do_packagedata do_package
 
 
diff --git a/meta/classes/package_ipk.bbclass b/meta/classes/package_ipk.bbclass
index 7018a600a9..039b6ab69b 100644
--- a/meta/classes/package_ipk.bbclass
+++ b/meta/classes/package_ipk.bbclass
@@ -291,6 +291,7 @@ python do_package_write_ipk () {
 do_package_write_ipk[dirs] = "${PKGWRITEDIRIPK}"
 do_package_write_ipk[cleandirs] = "${PKGWRITEDIRIPK}"
 do_package_write_ipk[umask] = "022"
+do_package_write_ipk[depends] += "${@oe.utils.build_depends_string(d.getVar('PACKAGE_WRITE_DEPS'), 'do_populate_sysroot')}"
 addtask package_write_ipk after do_packagedata do_package
 
 PACKAGEINDEXDEPS += "opkg-utils-native:do_populate_sysroot"
diff --git a/meta/classes/package_rpm.bbclass b/meta/classes/package_rpm.bbclass
index b9f049e4b2..c978ec55d0 100644
--- a/meta/classes/package_rpm.bbclass
+++ b/meta/classes/package_rpm.bbclass
@@ -772,6 +772,7 @@ python do_package_write_rpm () {
 do_package_write_rpm[dirs] = "${PKGWRITEDIRRPM}"
 do_package_write_rpm[cleandirs] = "${PKGWRITEDIRRPM}"
 do_package_write_rpm[umask] = "022"
+do_package_write_rpm[depends] += "${@oe.utils.build_depends_string(d.getVar('PACKAGE_WRITE_DEPS'), 'do_populate_sysroot')}"
 addtask package_write_rpm after do_packagedata do_package
 
 PACKAGEINDEXDEPS += "rpm-native:do_populate_sysroot"