In some cases there is a need for update-alternatives script which gets built
within opkg-utils recipe into a standalone package. However, this causes to
many unnecessary dependencies, including Python, bc, OpenSSL etc. to be built.

In this commit a standalone lightweight recipe for update-alternatives that
shouldn't be dependent on nothing other than bash.

https://bugzilla.yoctoproject.org/show_bug.cgi?id=8879

Signed-off-by: Gregor Zatko <[email protected]>
---
 .../conf/distro/include/default-providers.inc |  6 +--
 meta/conf/layer.conf                          |  3 +-
 .../packagegroups/packagegroup-self-hosted.bb |  1 +
 .../opkg-utils/opkg-utils_0.4.2.bb            | 25 +---------
 .../update-alternatives_0.4.2.bb              | 49 +++++++++++++++++++
 5 files changed, 56 insertions(+), 28 deletions(-)
 create mode 100644 
meta/recipes-devtools/update-alternatives/update-alternatives_0.4.2.bb

diff --git a/meta/conf/distro/include/default-providers.inc 
b/meta/conf/distro/include/default-providers.inc
index ea88bd4876..035877af59 100644
--- a/meta/conf/distro/include/default-providers.inc
+++ b/meta/conf/distro/include/default-providers.inc
@@ -10,8 +10,8 @@ PREFERRED_PROVIDER_virtual/nativesdk-libgl ?= "nativesdk-mesa"
 PREFERRED_PROVIDER_virtual/libgles1 ?= "mesa"
 PREFERRED_PROVIDER_virtual/libgles2 ?= "mesa"
 PREFERRED_PROVIDER_virtual/mesa ?= "mesa"
-PREFERRED_PROVIDER_virtual/update-alternatives ?= "opkg-utils"
-PREFERRED_PROVIDER_virtual/update-alternatives-native ?= "opkg-utils-native"
+PREFERRED_PROVIDER_virtual/update-alternatives ?= "update-alternatives"
+PREFERRED_PROVIDER_virtual/update-alternatives-native ?= 
"update-alternatives-native"
 PREFERRED_PROVIDER_virtual/libx11 ?= "libx11"
 PREFERRED_PROVIDER_virtual/base-utils ?= "busybox"
 PREFERRED_PROVIDER_xf86-video-intel ?= "xf86-video-intel"
@@ -21,7 +21,7 @@ PREFERRED_PROVIDER_virtual/make-native ?= "make-native"
 #
 # Default virtual runtime providers
 #
-VIRTUAL-RUNTIME_update-alternatives ?= "update-alternatives-opkg"
+VIRTUAL-RUNTIME_update-alternatives ?= "update-alternatives"
 VIRTUAL-RUNTIME_apm ?= "apm"
 VIRTUAL-RUNTIME_alsa-state ?= "alsa-state"
 VIRTUAL-RUNTIME_getopt ?= "util-linux-getopt"
diff --git a/meta/conf/layer.conf b/meta/conf/layer.conf
index da93d64e0a..85fb945f11 100644
--- a/meta/conf/layer.conf
+++ b/meta/conf/layer.conf
@@ -19,7 +19,6 @@ BBLAYERS_LAYERINDEX_NAME_core = "openembedded-core"
 # Set a variable to get to the top of the metadata location
 COREBASE = '${@os.path.normpath("${LAYERDIR}/../")}'
 
-# opkg-utils is for update-alternatives :(
 SIGGEN_EXCLUDERECIPES_ABISAFE += " \
   sysvinit-inittab \
   busybox-inittab \
@@ -40,7 +39,7 @@ SIGGEN_EXCLUDERECIPES_ABISAFE += " \
   shadow \
   shadow-sysroot \
   base-passwd \
-  opkg-utils \
+  update-alternatives \
   gstreamer1.0-meta-base \
   ca-certificates \
   shared-mime-info \
diff --git a/meta/recipes-core/packagegroups/packagegroup-self-hosted.bb 
b/meta/recipes-core/packagegroups/packagegroup-self-hosted.bb
index 9a70b189a4..4a494f1578 100644
--- a/meta/recipes-core/packagegroups/packagegroup-self-hosted.bb
+++ b/meta/recipes-core/packagegroups/packagegroup-self-hosted.bb
@@ -166,6 +166,7 @@ RDEPENDS_packagegroup-self-hosted-extended = "\
     tcl \
     texinfo \
     unzip \
+    update-alternatives \
     usbutils \
     watchdog \
     wget \
diff --git a/meta/recipes-devtools/opkg-utils/opkg-utils_0.4.2.bb 
b/meta/recipes-devtools/opkg-utils/opkg-utils_0.4.2.bb
index 9315240190..5ebe3d8e60 100644
--- a/meta/recipes-devtools/opkg-utils/opkg-utils_0.4.2.bb
+++ b/meta/recipes-devtools/opkg-utils/opkg-utils_0.4.2.bb
@@ -1,13 +1,11 @@
 SUMMARY = "Additional utilities for the opkg package manager"
-SUMMARY_update-alternatives-opkg = "Utility for managing the alternatives 
system"
 SECTION = "base"
 HOMEPAGE = "http://git.yoctoproject.org/cgit/cgit.cgi/opkg-utils";
 LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f \
                     
file://opkg.py;beginline=2;endline=18;md5=ffa11ff3c15eb31c6a7ceaa00cc9f986"
-PROVIDES += "${@bb.utils.contains('PACKAGECONFIG', 'update-alternatives', 
'virtual/update-alternatives', '', d)}"
 
-SRC_URI = 
"http://git.yoctoproject.org/cgit/cgit.cgi/${BPN}/snapshot/${BPN}-${PV}.tar.gz 
\ 
+SRC_URI = 
"http://git.yoctoproject.org/cgit/cgit.cgi/${BPN}/snapshot/${BPN}-${PV}.tar.gz \
            file://fix-reproducibility.patch \
 "
 UPSTREAM_CHECK_URI = 
"http://git.yoctoproject.org/cgit/cgit.cgi/opkg-utils/refs/";
@@ -25,42 +23,23 @@ inherit perlnative
 PYTHONRDEPS = "python3 python3-shell python3-io python3-math python3-crypt 
python3-logging python3-fcntl python3-pickle python3-compression 
python3-stringold"
 PYTHONRDEPS_class-native = ""
 
-PACKAGECONFIG = "python update-alternatives"
+PACKAGECONFIG = "python"
 PACKAGECONFIG[python] = ",,,${PYTHONRDEPS}"
-PACKAGECONFIG[update-alternatives] = ",,,"
 
 do_install() {
        oe_runmake PREFIX=${prefix} DESTDIR=${D} install
-       if ! ${@bb.utils.contains('PACKAGECONFIG', 'update-alternatives', 
'true', 'false', d)}; then
-               rm -f "${D}${bindir}/update-alternatives"
-       fi
 }
 
 do_install_append_class-target() {
        if ! ${@bb.utils.contains('PACKAGECONFIG', 'python', 'true', 'false', 
d)}; then
                grep -lZ "/usr/bin/env.*python" ${D}${bindir}/* | xargs -0 rm
        fi
-
-       if [ -e "${D}${bindir}/update-alternatives" ]; then
-               sed -i ${D}${bindir}/update-alternatives -e 
's,/usr/bin,${bindir},g; s,/usr/lib,${nonarch_libdir},g'
-       fi
 }
 
 # These are empty and will pull python3-dev into images where it wouldn't
 # have been otherwise, so don't generate them.
 PACKAGES_remove = "${PN}-dev ${PN}-staticdev"
 
-PACKAGES =+ "update-alternatives-opkg"
-FILES_update-alternatives-opkg = "${bindir}/update-alternatives"
-RPROVIDES_update-alternatives-opkg = "update-alternatives 
update-alternatives-cworth"
-RREPLACES_update-alternatives-opkg = "update-alternatives-cworth"
-RCONFLICTS_update-alternatives-opkg = "update-alternatives-cworth"
-
-pkg_postrm_update-alternatives-opkg() {
-       rm -rf $D${nonarch_libdir}/opkg/alternatives
-       rmdir $D${nonarch_libdir}/opkg || true
-}
-
 BBCLASSEXTEND = "native nativesdk"
 
 CLEANBROKEN = "1"
diff --git 
a/meta/recipes-devtools/update-alternatives/update-alternatives_0.4.2.bb 
b/meta/recipes-devtools/update-alternatives/update-alternatives_0.4.2.bb
new file mode 100644
index 0000000000..8cbf8c4889
--- /dev/null
+++ b/meta/recipes-devtools/update-alternatives/update-alternatives_0.4.2.bb
@@ -0,0 +1,49 @@
+SUMMARY = "Utility for managing the alternatives system"
+DESCRIPTION = "This program was inspired by the Debian update-alternatives 
program which is Copyright (C) 1995 Ian Jackson. This version of 
update-alternatives is command-line compatible with Debian's for a subset of 
the options, (only --install, --remove, and --help)"
+SECTION = "base"
+HOMEPAGE = "http://git.yoctoproject.org/cgit/cgit.cgi/opkg-utils";
+LICENSE = "GPLv2+"
+LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f \
+                    
file://opkg.py;beginline=2;endline=18;md5=ffa11ff3c15eb31c6a7ceaa00cc9f986"
+
+SRC_ARCHIVE_NAME = "opkg-utils"
+SRC_URI = 
"http://git.yoctoproject.org/cgit/cgit.cgi/${SRC_ARCHIVE_NAME}/snapshot/${SRC_ARCHIVE_NAME}-${PV}.tar.gz";
+UPSTREAM_CHECK_URI = 
"http://git.yoctoproject.org/cgit/cgit.cgi/opkg-utils/refs/";
+S = "${WORKDIR}/${SRC_ARCHIVE_NAME}-${PV}"
+
+SRC_URI[md5sum] = "cc210650644fcb9bba06ad5ec95a63ec"
+SRC_URI[sha256sum] = 
"5929ad87d541789e0b82d626db01a1201ac48df6f49f2262fcfb86cf815e5d6c"
+
+TARGET_CC_ARCH += "${LDFLAGS}"
+
+RDEPENDS_${PN} += "bash"
+
+do_compile[noexec] = "1"
+
+do_install() {
+
+    install -D -m 755 ${S}/update-alternatives 
${D}${bindir}/update-alternatives
+}
+
+do_install_append_class-target() {
+
+    sed -i ${D}${bindir}/update-alternatives -e 's,/usr/bin,${bindir},g; 
s,/usr/lib,${nonarch_libdir},g'
+}
+
+FILES_${PN} = "${bindir}/update-alternatives"
+RPROVIDES_${PN} = "${PN} update-alternatives-cworth"
+RREPLACES_${PN} = "update-alternatives-cworth"
+RCONFLICTS_${PN} = "update-alternatives-cworth"
+
+PROVIDES_class-target += "virtual/update-alternatives"
+RPROVIDES_${PN}_class-target += "update-alternatives"
+PROVIDES_class-native += "virtual/update-alternatives-native"
+RPROVIDES_${PN}_class-native += "update-alternatives-native"
+
+pkg_postrm_${PN}() {
+
+    rm -rf $D${nonarch_libdir}/opkg/alternatives
+    rmdir $D${nonarch_libdir}/opkg || true
+}
+
+BBCLASSEXTEND = "native nativesdk"
-- 
2.26.2

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