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author | Patrick Williams <patrick@stwcx.xyz> | 2016-08-17 22:31:25 +0300 |
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committer | Patrick Williams <patrick@stwcx.xyz> | 2016-08-22 19:43:26 +0300 |
commit | 60f9d69e016b11c468c98ea75ba0a60c44afbbc4 (patch) | |
tree | ecb49581a9e41a37943c22cd9ef3f63451b20ee7 /import-layers/yocto-poky/meta/classes/externalsrc.bbclass | |
parent | e18c61205e0234b03697129c20cc69c9b3940efc (diff) | |
download | openbmc-60f9d69e016b11c468c98ea75ba0a60c44afbbc4.tar.xz |
yocto-poky: Move to import-layers subdir
We are going to import additional layers, so create a subdir to
hold all of the layers that we import with git-subtree.
Change-Id: I6f732153a22be8ca663035c518837e3cc5ec0799
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Diffstat (limited to 'import-layers/yocto-poky/meta/classes/externalsrc.bbclass')
-rw-r--r-- | import-layers/yocto-poky/meta/classes/externalsrc.bbclass | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/classes/externalsrc.bbclass b/import-layers/yocto-poky/meta/classes/externalsrc.bbclass new file mode 100644 index 000000000..da7eb4781 --- /dev/null +++ b/import-layers/yocto-poky/meta/classes/externalsrc.bbclass @@ -0,0 +1,154 @@ +# Copyright (C) 2012 Linux Foundation +# Author: Richard Purdie +# Some code and influence taken from srctree.bbclass: +# Copyright (C) 2009 Chris Larson <clarson@kergoth.com> +# Released under the MIT license (see COPYING.MIT for the terms) +# +# externalsrc.bbclass enables use of an existing source tree, usually external to +# the build system to build a piece of software rather than the usual fetch/unpack/patch +# process. +# +# To use, add externalsrc to the global inherit and set EXTERNALSRC to point at the +# directory you want to use containing the sources e.g. from local.conf for a recipe +# called "myrecipe" you would do: +# +# INHERIT += "externalsrc" +# EXTERNALSRC_pn-myrecipe = "/path/to/my/source/tree" +# +# In order to make this class work for both target and native versions (or with +# multilibs/cross or other BBCLASSEXTEND variants), B is set to point to a separate +# directory under the work directory (split source and build directories). This is +# the default, but the build directory can be set to the source directory if +# circumstances dictate by setting EXTERNALSRC_BUILD to the same value, e.g.: +# +# EXTERNALSRC_BUILD_pn-myrecipe = "/path/to/my/source/tree" +# + +SRCTREECOVEREDTASKS ?= "do_patch do_unpack do_fetch" +EXTERNALSRC_SYMLINKS ?= "oe-workdir:${WORKDIR} oe-logs:${T}" + +python () { + externalsrc = d.getVar('EXTERNALSRC', True) + if externalsrc: + d.setVar('S', externalsrc) + externalsrcbuild = d.getVar('EXTERNALSRC_BUILD', True) + if externalsrcbuild: + d.setVar('B', externalsrcbuild) + else: + d.setVar('B', '${WORKDIR}/${BPN}-${PV}/') + + local_srcuri = [] + fetch = bb.fetch2.Fetch((d.getVar('SRC_URI', True) or '').split(), d) + for url in fetch.urls: + url_data = fetch.ud[url] + parm = url_data.parm + if (url_data.type == 'file' or + 'type' in parm and parm['type'] == 'kmeta'): + local_srcuri.append(url) + + d.setVar('SRC_URI', ' '.join(local_srcuri)) + + if '{SRCPV}' in d.getVar('PV', False): + # Dummy value because the default function can't be called with blank SRC_URI + d.setVar('SRCPV', '999') + + tasks = filter(lambda k: d.getVarFlag(k, "task", True), d.keys()) + + for task in tasks: + if task.endswith("_setscene"): + # sstate is never going to work for external source trees, disable it + bb.build.deltask(task, d) + else: + # Since configure will likely touch ${S}, ensure only we lock so one task has access at a time + d.appendVarFlag(task, "lockfiles", " ${S}/singletask.lock") + + # We do not want our source to be wiped out, ever (kernel.bbclass does this for do_clean) + cleandirs = (d.getVarFlag(task, 'cleandirs', False) or '').split() + setvalue = False + for cleandir in cleandirs[:]: + if d.expand(cleandir) == externalsrc: + cleandirs.remove(cleandir) + setvalue = True + if setvalue: + d.setVarFlag(task, 'cleandirs', ' '.join(cleandirs)) + + fetch_tasks = ['do_fetch', 'do_unpack'] + # If we deltask do_patch, there's no dependency to ensure do_unpack gets run, so add one + # Note that we cannot use d.appendVarFlag() here because deps is expected to be a list object, not a string + d.setVarFlag('do_configure', 'deps', (d.getVarFlag('do_configure', 'deps', False) or []) + ['do_unpack']) + + for task in d.getVar("SRCTREECOVEREDTASKS", True).split(): + if local_srcuri and task in fetch_tasks: + continue + bb.build.deltask(task, d) + + d.prependVarFlag('do_compile', 'prefuncs', "externalsrc_compile_prefunc ") + d.prependVarFlag('do_configure', 'prefuncs', "externalsrc_configure_prefunc ") + + # Force the recipe to be always re-parsed so that the file_checksums + # function is run every time + d.setVar('BB_DONT_CACHE', '1') + d.setVarFlag('do_compile', 'file-checksums', '${@srctree_hash_files(d)}') + + # We don't want the workdir to go away + d.appendVar('RM_WORK_EXCLUDE', ' ' + d.getVar('PN', True)) + + # If B=S the same builddir is used even for different architectures. + # Thus, use a shared CONFIGURESTAMPFILE and STAMP directory so that + # change of do_configure task hash is correctly detected and stamps are + # invalidated if e.g. MACHINE changes. + if d.getVar('S', True) == d.getVar('B', True): + configstamp = '${TMPDIR}/work-shared/${PN}/${EXTENDPE}${PV}-${PR}/configure.sstate' + d.setVar('CONFIGURESTAMPFILE', configstamp) + d.setVar('STAMP', '${STAMPS_DIR}/work-shared/${PN}/${EXTENDPE}${PV}-${PR}') +} + +python externalsrc_configure_prefunc() { + # Create desired symlinks + symlinks = (d.getVar('EXTERNALSRC_SYMLINKS', True) or '').split() + for symlink in symlinks: + symsplit = symlink.split(':', 1) + lnkfile = os.path.join(d.getVar('S', True), symsplit[0]) + target = d.expand(symsplit[1]) + if len(symsplit) > 1: + if os.path.islink(lnkfile): + # Link already exists, leave it if it points to the right location already + if os.readlink(lnkfile) == target: + continue + os.unlink(lnkfile) + elif os.path.exists(lnkfile): + # File/dir exists with same name as link, just leave it alone + continue + os.symlink(target, lnkfile) +} + +python externalsrc_compile_prefunc() { + # Make it obvious that this is happening, since forgetting about it could lead to much confusion + bb.plain('NOTE: %s: compiling from external source tree %s' % (d.getVar('PN', True), d.getVar('EXTERNALSRC', True))) +} + +def srctree_hash_files(d): + import shutil + import subprocess + import tempfile + + s_dir = d.getVar('EXTERNALSRC', True) + git_dir = os.path.join(s_dir, '.git') + oe_hash_file = os.path.join(git_dir, 'oe-devtool-tree-sha1') + + ret = " " + if os.path.exists(git_dir): + with tempfile.NamedTemporaryFile(dir=git_dir, prefix='oe-devtool-index') as tmp_index: + # Clone index + shutil.copy2(os.path.join(git_dir, 'index'), tmp_index.name) + # Update our custom index + env = os.environ.copy() + env['GIT_INDEX_FILE'] = tmp_index.name + subprocess.check_output(['git', 'add', '.'], cwd=s_dir, env=env) + sha1 = subprocess.check_output(['git', 'write-tree'], cwd=s_dir, env=env) + with open(oe_hash_file, 'w') as fobj: + fobj.write(sha1) + ret = oe_hash_file + ':True' + else: + ret = d.getVar('EXTERNALSRC', True) + '/*:True' + return ret |