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sw:yocto:bitbake:split_packages [2026/02/23 15:55] – niziaksw:yocto:bitbake:split_packages [2026/03/10 19:27] (current) – niziak
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 yocto.yoctoproject.narkive.com/XcannnRd/per-image-customizations]] yocto.yoctoproject.narkive.com/XcannnRd/per-image-customizations]]
   * Search in Yocto for ''python populate_packages'' and see what others do   * Search in Yocto for ''python populate_packages'' and see what others do
 +
 +===== almost works =====
 +
 +Adapted solution from 1st link almost works. Until SPDX fails because ''base-files-devel'' provides ''base-files''.
 +
 +<code bash>
 +
 +PACKAGES += "${PN}-devel"
 +PROVIDES += "${PN}-devel"
 +CONFFILES:${PN}-devel = "${CONFFILES:${PN}}"
 +
 +
 +RREPLACES:${PN}-devel = "${PN}"
 +RCONFLICTS:${PN}-devel = "${PN}"
 +
 +# ${PN}-devel also provides ${PN} - for compatibility with other packages
 +# But it breaks SPDX generation in do_rootfs so disable it
 +RPROVIDES:${PN}-devel = "${PN}"
 +
 +CVE_PRODUCT:${PN}-devel = "base-files"
 +
 +python populate_packages:prepend() {
 +    import shutil
 +
 +    packages = ("${PN}-devel",)
 +    # PKGD (Package Destination Directory): This is the directory where files are
 +    # staged before they are split into individual packages. It represents the intermediate,
 +    # unsplit state of the files that do_install has already installed.
 +    #
 +    # PKGDEST (Package Destination): This is the parent directory where packages reside after they have
 +    # been split. It is often referred to as the packages-split directory, containing subdirectories for
 +    # each package (e.g., pkg-name, pkg-name-dbg, pkg-name-dev).
 +
 +    preinst = d.getVar('pkg_preinst:${PN}')
 +    for package in packages:
 +        d.setVar(d.expand(f"pkg_preinst:{package}"), preinst)
 +        # copy ${PN} content to other packages
 +        shutil.copytree(d.expand("${PKGD}"), d.expand("${PKGDEST}"+ f"/{package}"), symlinks=True)
 +        # replace fstab
 +        if package == "${PN}-devel":
 +            shutil.copy(d.expand("${WORKDIR}/fstab-devel"), d.expand("${PKGDEST}/${PN}-devel/etc/fstab"))
 +}
 +
 +INSANE_SKIP:${PN}-devel += "empty-dirs"
 +</code>
 +
 +===== works: create separate package =====
 +
 +Create second ''.bb'' file and include content of original file.
 +
 +  * Want to change ''/etc/fstab'' in ''base-files'':
 +<file bash base-files_%.bbappend>
 +FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 +
 +SRC_URI:append = " \
 +    file://fstab \
 +"
 +</file>
 +  * Want to provide another ''/etc/fstab'' in new package ''base-files-devel'':
 +<file bash base-files-devel_3.0.14.bb>
 +require recipes-core/base-files/base-files_${PV}.bb
 +
 +FILESEXTRAPATHS:append := ":${COREBASE}/meta/recipes-core/base-files/base-files"
 +
 +SUMMARY = "Devel version of base-files package."
 +
 +RPROVIDES:${PN} = "base-files"
 +
 +SRC_URI += " \
 +    file://fstab-devel \
 +"
 +
 +do_install:append() {
 +        install -m 0644 ${WORKDIR}/fstab-devel ${D}${sysconfdir}/fstab
 +}
 +</file>
 +
 +
 +