BitBake language preview

1. A simple recipe

variable assignments, expansion, and a shell task

horizon-dark

# recipe for a simple tool
SUMMARY = "A simple tool"
LICENSE = "MIT"
SRC_URI = "git://example.com/tool.git;branch=main"

DEPENDS += "zlib"
S = "${WORKDIR}/git"

do_install() {
    install -d ${D}${bindir}
    install -m 0755 tool ${D}${bindir}
}

python do_after_install() {
    d.setVar('SOMEVAR', 'value')
}

atom-one-dark

# recipe for a simple tool
SUMMARY = "A simple tool"
LICENSE = "MIT"
SRC_URI = "git://example.com/tool.git;branch=main"

DEPENDS += "zlib"
S = "${WORKDIR}/git"

do_install() {
    install -d ${D}${bindir}
    install -m 0755 tool ${D}${bindir}
}

python do_after_install() {
    d.setVar('SOMEVAR', 'value')
}

github-dark

# recipe for a simple tool
SUMMARY = "A simple tool"
LICENSE = "MIT"
SRC_URI = "git://example.com/tool.git;branch=main"

DEPENDS += "zlib"
S = "${WORKDIR}/git"

do_install() {
    install -d ${D}${bindir}
    install -m 0755 tool ${D}${bindir}
}

python do_after_install() {
    d.setVar('SOMEVAR', 'value')
}

dracula

# recipe for a simple tool
SUMMARY = "A simple tool"
LICENSE = "MIT"
SRC_URI = "git://example.com/tool.git;branch=main"

DEPENDS += "zlib"
S = "${WORKDIR}/git"

do_install() {
    install -d ${D}${bindir}
    install -m 0755 tool ${D}${bindir}
}

python do_after_install() {
    d.setVar('SOMEVAR', 'value')
}

nord

# recipe for a simple tool
SUMMARY = "A simple tool"
LICENSE = "MIT"
SRC_URI = "git://example.com/tool.git;branch=main"

DEPENDS += "zlib"
S = "${WORKDIR}/git"

do_install() {
    install -d ${D}${bindir}
    install -m 0755 tool ${D}${bindir}
}

python do_after_install() {
    d.setVar('SOMEVAR', 'value')
}

github

# recipe for a simple tool
SUMMARY = "A simple tool"
LICENSE = "MIT"
SRC_URI = "git://example.com/tool.git;branch=main"

DEPENDS += "zlib"
S = "${WORKDIR}/git"

do_install() {
    install -d ${D}${bindir}
    install -m 0755 tool ${D}${bindir}
}

python do_after_install() {
    d.setVar('SOMEVAR', 'value')
}

2. Append and override syntax

the :append, :prepend, and :remove operators

horizon-dark

FILES:${PN} += "${bindir}/tool"
CFLAGS:append = " -DDEBUG"
RDEPENDS:remove = "unwanted-package"

atom-one-dark

FILES:${PN} += "${bindir}/tool"
CFLAGS:append = " -DDEBUG"
RDEPENDS:remove = "unwanted-package"

github-dark

FILES:${PN} += "${bindir}/tool"
CFLAGS:append = " -DDEBUG"
RDEPENDS:remove = "unwanted-package"

dracula

FILES:${PN} += "${bindir}/tool"
CFLAGS:append = " -DDEBUG"
RDEPENDS:remove = "unwanted-package"

nord

FILES:${PN} += "${bindir}/tool"
CFLAGS:append = " -DDEBUG"
RDEPENDS:remove = "unwanted-package"

github

FILES:${PN} += "${bindir}/tool"
CFLAGS:append = " -DDEBUG"
RDEPENDS:remove = "unwanted-package"

3. Inline Python

an inline Python expansion for computing a value

horizon-dark

PACKAGE_ARCH = "${@d.getVar('TARGET_ARCH')}"

atom-one-dark

PACKAGE_ARCH = "${@d.getVar('TARGET_ARCH')}"

github-dark

PACKAGE_ARCH = "${@d.getVar('TARGET_ARCH')}"

dracula

PACKAGE_ARCH = "${@d.getVar('TARGET_ARCH')}"

nord

PACKAGE_ARCH = "${@d.getVar('TARGET_ARCH')}"

github

PACKAGE_ARCH = "${@d.getVar('TARGET_ARCH')}"