Would it be acceptable to have do_patch() use quilt?
If I am not mistaken, do_patch could then start with "quilt pop -a" to remove all patches from a previous run?


On Monday, March 4, 2019 at 10:12:01 AM UTC+1, Jan Kiszka wrote:
On 04.03.19 09:51, [ext] Claudius Heine wrote:
> Hi Jan,
>
> On 23/02/2019 11.44, Jan Kiszka wrote:
>> From: Jan Kiszka <jan.k...@siemens.com>
>>
>> Our patch implementations does not support rolling back previously
>> applied patches, thus fails on patch updates without a rerun of unpack.
>> Avoid this by moving both steps into the same task.
>
> IMO merging multiple conceptual different tasks into one is a step back,
> especially with such a fundamental task as do_patch.
>
> If our implementation lacks behind the one in OE, why not copy stuff from there
> instead?

Because it's OE and not Isar. I would have copied things already if they were
well isolated on the OE side. But there seem to be more complex dependencies
that need to be resolved - or we need a conceptually equivalent solution. We
likely need to go that path as we need to account for the debian source package
use case as well.

Jan

>
> If that is just impossible for whatever reason, then I would rather bind those
> tasks together with [postfuncs]. That would allow each function to be customized
> from other layers if necessary.
>
> regards,
> Claudius
>
>>
>> Signed-off-by: Jan Kiszka <jan.k...@siemens.com>
>> ---
>>   meta/classes/base.bbclass                          | 47 ++++++++++++++++++----
>>   meta/classes/dpkg-base.bbclass                     |  9 ++---
>>   meta/classes/dpkg-raw.bbclass                      |  2 +-
>>   meta/classes/fit-img.bbclass                       |  2 +-
>>   meta/classes/image.bbclass                         |  2 +-
>>   meta/classes/patch.bbclass                         | 33 ---------------
>>   meta/classes/template.bbclass                      |  2 +-
>>   meta/classes/ubi-img.bbclass                       |  2 +-
>>   .../isar-bootstrap/isar-bootstrap-host.bb          |  2 +-
>>   .../isar-bootstrap/isar-bootstrap-target.bb        |  2 +-
>>   .../recipes-core/isar-bootstrap/isar-bootstrap.inc |  2 +-
>>   meta/recipes-devtools/isar-apt/isar-apt.bb         |  2 +-
>>   .../isar-cfg-localepurge/isar-cfg-localepurge.bb   |  2 +-
>>   13 files changed, 52 insertions(+), 57 deletions(-)
>>   delete mode 100644 meta/classes/patch.bbclass
>>
>> diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
>> index 4279a68..7bdaf37 100644
>> --- a/meta/classes/base.bbclass
>> +++ b/meta/classes/base.bbclass
>> @@ -1,4 +1,5 @@
>>   # Copyright (C) 2003  Chris Larson
>> +# Copyright (c) Siemens AG, 2018
>>   #
>>   # Permission is hereby granted, free of charge, to any person obtaining a
>>   # copy of this software and associated documentation files (the "Software"),
>> @@ -17,6 +18,8 @@
>>   # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
>>   # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>>   # OTHER DEALINGS IN THE SOFTWARE.
>> +#
>> +# SPDX-License-Identifier: MIT
>>
>>   THISDIR = "${@os.path.dirname(d.getVar('FILE', True))}"
>>
>> @@ -135,25 +138,53 @@ python do_fetch() {
>>
>>   addtask fetch before do_build
>>
>> -do_unpack[dirs] = "${WORKDIR}"
>> -do_unpack[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
>> +do_unpack_and_patch[dirs] = "${WORKDIR}"
>> +do_unpack_and_patch[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
>>
>> -# Unpack package and put it into working directory
>> -python do_unpack() {
>> -    src_uri = (d.getVar('SRC_URI', True) or "").split()
>> -    if len(src_uri) == 0:
>> +# Unpack package, put it into working directory, and apply potential patches
>> +python do_unpack_and_patch() {
>> +    import subprocess
>> +
>> +    src_uris = (d.getVar('SRC_URI', True) or "").split()
>> +    if len(src_uris) == 0:
>>           return
>>
>>       rootdir = d.getVar('WORKDIR', True)
>> +    src_dir = d.getVar("S", True)
>>
>> +    # unpack src_uris
>>       try:
>> -        fetcher = bb.fetch2.Fetch(src_uri, d)
>> +        fetcher = bb.fetch2.Fetch(src_uris, d)
>>           fetcher.unpack(rootdir)
>>       except bb.fetch2.BBFetchException as e:
>>           raise bb.build.FuncFailed(e)
>> +
>> +    # apply patches
>> +    for src_uri in src_uris:
>> +        try:
>> +            fetcher = bb.fetch2.Fetch([src_uri], d)
>> +
>> +            apply = fetcher.ud[src_uri].parm.get("apply")
>> +            if apply == "no":
>> +                continue
>> +
>> +            basename = fetcher.ud[src_uri].basename or ""
>> +            if not (basename.endswith(".patch") or apply == "yes"):
>> +                continue
>> +
>> +            striplevel = fetcher.ud[src_uri].parm.get("striplevel") or "1"
>> +
>> +            cmd = "patch --no-backup-if-mismatch -p " + striplevel + \
>> +                  " --directory " + src_dir + \
>> +                  " --input " + rootdir + '/' + basename
>> +            bb.note(cmd)
>> +            if subprocess.call(cmd, shell=True) != 0:
>> +                bb.fatal("patching failed")
>> +        except bb.fetch2.BBFetchException as e:
>> +            raise bb.build.FuncFailed(e)
>>   }
>>
>> -addtask unpack after do_fetch before do_build
>> +addtask unpack_and_patch after do_fetch before do_build
>>
>>   addtask build
>>   do_build[dirs] = "${TOPDIR}"
>> diff --git a/meta/classes/dpkg-base.bbclass b/meta/classes/dpkg-base.bbclass
>> index 742b8ad..8ef1f06 100644
>> --- a/meta/classes/dpkg-base.bbclass
>> +++ b/meta/classes/dpkg-base.bbclass
>> @@ -15,12 +15,9 @@ do_adjust_git() {
>>       fi
>>   }
>>
>> -addtask adjust_git after do_unpack before do_patch
>> +addtask adjust_git after do_unpack_and_patch before do_prepare_build
>>   do_adjust_git[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
>>
>> -inherit patch
>> -addtask patch after do_adjust_git before do_build
>> -
>>   SRC_APT ?= ""
>>
>>   do_apt_fetch[depends] = "buildchroot-target:do_build"
>> @@ -40,7 +37,7 @@ do_apt_fetch() {
>>       dpkg_undo_mounts
>>   }
>>
>> -addtask apt_fetch after do_unpack before do_patch
>> +addtask apt_fetch before do_unpack_and_patch
>>   do_apt_fetch[lockfiles] += "${REPO_ISAR_DIR}/isar.lock"
>>   do_apt_fetch[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
>>
>> @@ -64,7 +61,7 @@ do_prepare_build() {
>>       true
>>   }
>>
>> -addtask prepare_build after do_patch do_transform_template before do_build
>> +addtask prepare_build after do_unpack_and_patch do_transform_template before
>> do_build
>>   do_prepare_build[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
>>   # If Isar recipes depend on each other, they typically need the package
>>   # deployed to isar-apt
>> diff --git a/meta/classes/dpkg-raw.bbclass b/meta/classes/dpkg-raw.bbclass
>> index ea03ea4..e63ba1d 100644
>> --- a/meta/classes/dpkg-raw.bbclass
>> +++ b/meta/classes/dpkg-raw.bbclass
>> @@ -17,7 +17,7 @@ do_install() {
>>
>>   do_install[cleandirs] = "${D}"
>>   do_install[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
>> -addtask install after do_unpack before do_prepare_build
>> +addtask install after do_unpack_and_patch before do_prepare_build
>>
>>   do_prepare_build[cleandirs] += "${D}/debian"
>>   do_prepare_build() {
>> diff --git a/meta/classes/fit-img.bbclass b/meta/classes/fit-img.bbclass
>> index edca09f..97f1d1a 100644
>> --- a/meta/classes/fit-img.bbclass
>> +++ b/meta/classes/fit-img.bbclass
>> @@ -29,4 +29,4 @@ do_fit_image() {
>>       sudo chroot ${BUILDCHROOT_DIR} /usr/bin/mkimage ${MKIMAGE_ARGS} \
>>                   -f '${PP_WORK}/${FIT_IMAGE_SOURCE}'
>> '${PP_DEPLOY}/${FIT_IMAGE_FILE}'
>>   }
>> -addtask fit_image before do_build after do_copy_boot_files
>> do_install_imager_deps do_unpack do_transform_template
>> +addtask fit_image before do_build after do_copy_boot_files
>> do_install_imager_deps do_unpack_and_patch do_transform_template
>> diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
>> index 574fb46..a5952eb 100644
>> --- a/meta/classes/image.bbclass
>> +++ b/meta/classes/image.bbclass
>> @@ -92,7 +92,7 @@ do_rootfs() {
>>       die "No root filesystem function defined, please implement in your recipe"
>>   }
>>
>> -addtask rootfs before do_build after do_unpack
>> +addtask rootfs before do_build after do_unpack_and_patch
>>   do_rootfs[deptask] = "do_deploy_deb"
>>
>>   do_mark_rootfs() {
>> diff --git a/meta/classes/patch.bbclass b/meta/classes/patch.bbclass
>> deleted file mode 100644
>> index 0bc449f..0000000
>> --- a/meta/classes/patch.bbclass
>> +++ /dev/null
>> @@ -1,33 +0,0 @@
>> -# This software is a part of ISAR.
>> -# Copyright (c) Siemens AG, 2018
>> -
>> -python do_patch() {
>> -    import subprocess
>> -
>> -    workdir = d.getVar("WORKDIR", True) + "/"
>> -    src_dir = d.getVar("S", True)
>> -
>> -    for src_uri in (d.getVar("SRC_URI", True) or "").split():
>> -        try:
>> -            fetcher = bb.fetch2.Fetch([src_uri], d)
>> -
>> -            apply = fetcher.ud[src_uri].parm.get("apply")
>> -            if apply == "no":
>> -                continue
>> -
>> -            basename = fetcher.ud[src_uri].basename or ""
>> -            if not (basename.endswith(".patch") or apply == "yes"):
>> -                continue
>> -
>> -            striplevel = fetcher.ud[src_uri].parm.get("striplevel") or "1"
>> -
>> -            cmd = "patch --no-backup-if-mismatch -p " + striplevel + \
>> -                  " --directory " + src_dir + " --input " + workdir + basename
>> -            bb.note(cmd)
>> -            if subprocess.call(cmd, shell=True) != 0:
>> -                bb.fatal("patching failed")
>> -        except bb.fetch2.BBFetchException as e:
>> -            raise bb.build.FuncFailed(e)
>> -}
>> -
>> -do_patch[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
>> diff --git a/meta/classes/template.bbclass b/meta/classes/template.bbclass
>> index 324511a..8846ab0 100644
>> --- a/meta/classes/template.bbclass
>> +++ b/meta/classes/template.bbclass
>> @@ -59,4 +59,4 @@ python do_transform_template() {
>>               if process.wait() != 0:
>>                   bb.fatal("processing of template failed")
>>   }
>> -addtask do_transform_template after do_unpack
>> +addtask do_transform_template after do_unpack_and_patch
>> diff --git a/meta/classes/ubi-img.bbclass b/meta/classes/ubi-img.bbclass
>> index f61a940..f06ab04 100644
>> --- a/meta/classes/ubi-img.bbclass
>> +++ b/meta/classes/ubi-img.bbclass
>> @@ -32,4 +32,4 @@ do_ubi_image() {
>>       sudo chroot ${BUILDCHROOT_DIR} /usr/sbin/ubinize ${UBINIZE_ARGS} \
>>                   -o '${PP_DEPLOY}/${UBI_IMAGE_FILE}' '${PP_WORK}/${UBINIZE_CFG}'
>>   }
>> -addtask ubi_image before do_build after do_copy_boot_files
>> do_install_imager_deps do_unpack do_transform_template
>> +addtask ubi_image before do_build after do_copy_boot_files
>> do_install_imager_deps do_unpack_and_patch do_transform_template
>> diff --git a/meta/recipes-core/isar-bootstrap/isar-bootstrap-host.bb
>> b/meta/recipes-core/isar-bootstrap/isar-bootstrap-host.bb
>> index a793585..da6d5e1 100644
>> --- a/meta/recipes-core/isar-bootstrap/isar-bootstrap-host.bb
>> +++ b/meta/recipes-core/isar-bootstrap/isar-bootstrap-host.bb
>> @@ -40,7 +40,7 @@ python do_apt_config_prepare() {
>>           aggregate_files(d, apt_sources_list, apt_sources_init_out)
>>           aggregate_aptsources_list(d, apt_sources_list, apt_sources_out)
>>   }
>> -addtask apt_config_prepare before do_bootstrap after do_unpack
>> +addtask apt_config_prepare before do_bootstrap after do_unpack_and_patch
>>
>>   OVERRIDES_append = ":${@get_distro_needs_https_support(d, True)}"
>>
>> diff --git a/meta/recipes-core/isar-bootstrap/isar-bootstrap-target.bb
>> b/meta/recipes-core/isar-bootstrap/isar-bootstrap-target.bb
>> index bec6fa8..b338adf 100644
>> --- a/meta/recipes-core/isar-bootstrap/isar-bootstrap-target.bb
>> +++ b/meta/recipes-core/isar-bootstrap/isar-bootstrap-target.bb
>> @@ -39,7 +39,7 @@ python do_apt_config_prepare() {
>>           aggregate_files(d, apt_sources_list, apt_sources_init_out)
>>           aggregate_aptsources_list(d, apt_sources_list, apt_sources_out)
>>   }
>> -addtask apt_config_prepare before do_bootstrap after do_unpack
>> +addtask apt_config_prepare before do_bootstrap after do_unpack_and_patch
>>
>>   OVERRIDES_append = ":${@get_distro_needs_https_support(d, False)}"
>>
>> diff --git a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
>> b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
>> index 234d339..15995d4 100644
>> --- a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
>> +++ b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
>> @@ -184,7 +184,7 @@ do_generate_keyring() {
>>           done
>>       fi
>>   }
>> -addtask generate_keyring before do_build after do_unpack
>> +addtask generate_keyring before do_build after do_unpack_and_patch
>>
>>
>>
>> diff --git a/meta/recipes-devtools/isar-apt/isar-apt.bb
>> b/meta/recipes-devtools/isar-apt/isar-apt.bb
>> index a959691..aea7ff7 100644
>> --- a/meta/recipes-devtools/isar-apt/isar-apt.bb
>> +++ b/meta/recipes-devtools/isar-apt/isar-apt.bb
>> @@ -26,4 +26,4 @@ do_cache_config() {
>>       fi
>>   }
>>
>> -addtask cache_config after do_unpack before do_build
>> +addtask cache_config after do_unpack_and_patch before do_build
>> diff --git a/meta/recipes-support/isar-cfg-localepurge/isar-cfg-localepurge.bb
>> b/meta/recipes-support/isar-cfg-localepurge/isar-cfg-localepurge.bb
>> index 62b4b2d..b231e1b 100644
>> --- a/meta/recipes-support/isar-cfg-localepurge/isar-cfg-localepurge.bb
>> +++ b/meta/recipes-support/isar-cfg-localepurge/isar-cfg-localepurge.bb
>> @@ -55,7 +55,7 @@ do_gen_config() {
>>           ${@get_nopurge(d)}
>>       __EOF__
>>   }
>> -addtask gen_config after do_unpack before do_install
>> +addtask gen_config after do_unpack_and_patch before do_install
>>
>>   do_install() {
>>       install -v -d ${D}/usr/lib/${PN}
>> --
>> 2.16.4
>>

--
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