| Message ID | 20211112115017.401779-2-Quirin.Gylstorff@siemens.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Headers | show |
| Series | Read-only root file system with dm-verity | expand |
On 12.11.21 12:50, Q. Gylstorff wrote: > From: Quirin Gylstorff <quirin.gylstorff@siemens.com> > > This file system is read only and use a reduced image size. > > Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com> > --- > classes/squashfs-img.bbclass | 42 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 42 insertions(+) > create mode 100644 classes/squashfs-img.bbclass > > diff --git a/classes/squashfs-img.bbclass b/classes/squashfs-img.bbclass > new file mode 100644 > index 0000000..f827e8c > --- /dev/null > +++ b/classes/squashfs-img.bbclass > @@ -0,0 +1,42 @@ > +# > +# CIP Core, generic profile > +# > +# Copyright (c) Siemens AG, 2021 > +# > +# Authors: > +# Quirin Gylstorff <quirin.gylstorff@siemens.com> > +# > +# SPDX-License-Identifier: MIT > +# > + > +SQUASHFS_IMAGE_FILE = "${IMAGE_FULLNAME}.squashfs.img" > + > +IMAGER_INSTALL += "squashfs-tools" > + > +SQUASHFS_EXCLUDE_DIRS ?= "" > +SQUASHFS_CONTENT ?= "${PP_ROOTFS}" > +SQUASHFS_CREATION_ARGS ?= " " Blank line after this. > +# Generate squashfs filesystem image I don't think the anonymous function does that... > +python __anonymous() { > + exclude_directories = (d.getVar('SQUASHFS_EXCLUDE_DIRS') or "").split() > + if len(exclude_directories) == 0: > + return > + args=d.getVar('SQUASHFS_CREATION_ARGS') > + args+=" -wildcards" > + # use wildcard to exclude only content of the the directory > + # this allows to use the directory as a mount point > + for dir in exclude_directories: > + args+=" -e {dir}/* ".format(dir=dir) > + d.setVar('SQUASHFS_CREATION_ARGS', args) How about d.appendVar? And Python style for python functions, please. > +} > + > +do_squashfs_image() { > + rm -f '${DEPLOY_DIR_IMAGE}/${SQUASHFS_IMAGE_FILE}' > + > + image_do_mounts > + > + sudo chroot "${BUILDCHROOT_DIR}" /bin/mksquashfs \ > + "${SQUASHFS_CONTENT}" "${PP_DEPLOY}/${SQUASHFS_IMAGE_FILE}" \ > + ${SQUASHFS_CREATION_ARGS} > +} > +addtask do_squashfs_image before do_image after do_image_tools do_excl_directories > This should also qualify as generic Isar class. It can start here, though. Jan
diff --git a/classes/squashfs-img.bbclass b/classes/squashfs-img.bbclass new file mode 100644 index 0000000..f827e8c --- /dev/null +++ b/classes/squashfs-img.bbclass @@ -0,0 +1,42 @@ +# +# CIP Core, generic profile +# +# Copyright (c) Siemens AG, 2021 +# +# Authors: +# Quirin Gylstorff <quirin.gylstorff@siemens.com> +# +# SPDX-License-Identifier: MIT +# + +SQUASHFS_IMAGE_FILE = "${IMAGE_FULLNAME}.squashfs.img" + +IMAGER_INSTALL += "squashfs-tools" + +SQUASHFS_EXCLUDE_DIRS ?= "" +SQUASHFS_CONTENT ?= "${PP_ROOTFS}" +SQUASHFS_CREATION_ARGS ?= " " +# Generate squashfs filesystem image +python __anonymous() { + exclude_directories = (d.getVar('SQUASHFS_EXCLUDE_DIRS') or "").split() + if len(exclude_directories) == 0: + return + args=d.getVar('SQUASHFS_CREATION_ARGS') + args+=" -wildcards" + # use wildcard to exclude only content of the the directory + # this allows to use the directory as a mount point + for dir in exclude_directories: + args+=" -e {dir}/* ".format(dir=dir) + d.setVar('SQUASHFS_CREATION_ARGS', args) +} + +do_squashfs_image() { + rm -f '${DEPLOY_DIR_IMAGE}/${SQUASHFS_IMAGE_FILE}' + + image_do_mounts + + sudo chroot "${BUILDCHROOT_DIR}" /bin/mksquashfs \ + "${SQUASHFS_CONTENT}" "${PP_DEPLOY}/${SQUASHFS_IMAGE_FILE}" \ + ${SQUASHFS_CREATION_ARGS} +} +addtask do_squashfs_image before do_image after do_image_tools do_excl_directories