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Patrick Williamsc124f4f2015-09-15 14:41:29 -05001# Copyright (C) 2012 Linux Foundation
2# Author: Richard Purdie
3# Some code and influence taken from srctree.bbclass:
4# Copyright (C) 2009 Chris Larson <clarson@kergoth.com>
5# Released under the MIT license (see COPYING.MIT for the terms)
6#
Brad Bishop6e60e8b2018-02-01 10:27:11 -05007# externalsrc.bbclass enables use of an existing source tree, usually external to
Patrick Williamsc124f4f2015-09-15 14:41:29 -05008# the build system to build a piece of software rather than the usual fetch/unpack/patch
9# process.
10#
11# To use, add externalsrc to the global inherit and set EXTERNALSRC to point at the
12# directory you want to use containing the sources e.g. from local.conf for a recipe
13# called "myrecipe" you would do:
14#
15# INHERIT += "externalsrc"
16# EXTERNALSRC_pn-myrecipe = "/path/to/my/source/tree"
17#
18# In order to make this class work for both target and native versions (or with
19# multilibs/cross or other BBCLASSEXTEND variants), B is set to point to a separate
20# directory under the work directory (split source and build directories). This is
21# the default, but the build directory can be set to the source directory if
22# circumstances dictate by setting EXTERNALSRC_BUILD to the same value, e.g.:
23#
24# EXTERNALSRC_BUILD_pn-myrecipe = "/path/to/my/source/tree"
25#
26
27SRCTREECOVEREDTASKS ?= "do_patch do_unpack do_fetch"
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050028EXTERNALSRC_SYMLINKS ?= "oe-workdir:${WORKDIR} oe-logs:${T}"
Patrick Williamsc124f4f2015-09-15 14:41:29 -050029
30python () {
Brad Bishop6e60e8b2018-02-01 10:27:11 -050031 externalsrc = d.getVar('EXTERNALSRC')
Brad Bishopd7bf8c12018-02-25 22:55:05 -050032 externalsrcbuild = d.getVar('EXTERNALSRC_BUILD')
33
34 if externalsrc and not externalsrc.startswith("/"):
35 bb.error("EXTERNALSRC must be an absolute path")
36 if externalsrcbuild and not externalsrcbuild.startswith("/"):
37 bb.error("EXTERNALSRC_BUILD must be an absolute path")
Patrick Williamsc0f7c042017-02-23 20:41:17 -060038
39 # If this is the base recipe and EXTERNALSRC is set for it or any of its
40 # derivatives, then enable BB_DONT_CACHE to force the recipe to always be
41 # re-parsed so that the file-checksums function for do_compile is run every
42 # time.
Brad Bishop6e60e8b2018-02-01 10:27:11 -050043 bpn = d.getVar('BPN')
Brad Bishop004d4992018-10-02 23:54:45 +020044 classextend = (d.getVar('BBCLASSEXTEND') or '').split()
45 if bpn == d.getVar('PN') or not classextend:
Patrick Williamsc0f7c042017-02-23 20:41:17 -060046 if (externalsrc or
47 ('native' in classextend and
Brad Bishop6e60e8b2018-02-01 10:27:11 -050048 d.getVar('EXTERNALSRC_pn-%s-native' % bpn)) or
Patrick Williamsc0f7c042017-02-23 20:41:17 -060049 ('nativesdk' in classextend and
Brad Bishop6e60e8b2018-02-01 10:27:11 -050050 d.getVar('EXTERNALSRC_pn-nativesdk-%s' % bpn)) or
Patrick Williamsc0f7c042017-02-23 20:41:17 -060051 ('cross' in classextend and
Brad Bishop6e60e8b2018-02-01 10:27:11 -050052 d.getVar('EXTERNALSRC_pn-%s-cross' % bpn))):
Patrick Williamsc0f7c042017-02-23 20:41:17 -060053 d.setVar('BB_DONT_CACHE', '1')
54
Patrick Williamsc124f4f2015-09-15 14:41:29 -050055 if externalsrc:
Brad Bishop316dfdd2018-06-25 12:45:53 -040056 import oe.recipeutils
57 import oe.path
58
Patrick Williamsc124f4f2015-09-15 14:41:29 -050059 d.setVar('S', externalsrc)
Patrick Williamsc124f4f2015-09-15 14:41:29 -050060 if externalsrcbuild:
61 d.setVar('B', externalsrcbuild)
62 else:
63 d.setVar('B', '${WORKDIR}/${BPN}-${PV}/')
64
65 local_srcuri = []
Brad Bishop6e60e8b2018-02-01 10:27:11 -050066 fetch = bb.fetch2.Fetch((d.getVar('SRC_URI') or '').split(), d)
Patrick Williamsc124f4f2015-09-15 14:41:29 -050067 for url in fetch.urls:
68 url_data = fetch.ud[url]
69 parm = url_data.parm
70 if (url_data.type == 'file' or
71 'type' in parm and parm['type'] == 'kmeta'):
72 local_srcuri.append(url)
73
74 d.setVar('SRC_URI', ' '.join(local_srcuri))
75
76 if '{SRCPV}' in d.getVar('PV', False):
77 # Dummy value because the default function can't be called with blank SRC_URI
78 d.setVar('SRCPV', '999')
79
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080080 if d.getVar('CONFIGUREOPT_DEPTRACK') == '--disable-dependency-tracking':
81 d.setVar('CONFIGUREOPT_DEPTRACK', '')
82
Brad Bishop6e60e8b2018-02-01 10:27:11 -050083 tasks = filter(lambda k: d.getVarFlag(k, "task"), d.keys())
Patrick Williamsc124f4f2015-09-15 14:41:29 -050084
85 for task in tasks:
86 if task.endswith("_setscene"):
87 # sstate is never going to work for external source trees, disable it
88 bb.build.deltask(task, d)
89 else:
90 # Since configure will likely touch ${S}, ensure only we lock so one task has access at a time
91 d.appendVarFlag(task, "lockfiles", " ${S}/singletask.lock")
92
93 # We do not want our source to be wiped out, ever (kernel.bbclass does this for do_clean)
Brad Bishop316dfdd2018-06-25 12:45:53 -040094 cleandirs = oe.recipeutils.split_var_value(d.getVarFlag(task, 'cleandirs', False) or '')
Patrick Williamsc124f4f2015-09-15 14:41:29 -050095 setvalue = False
96 for cleandir in cleandirs[:]:
Brad Bishop316dfdd2018-06-25 12:45:53 -040097 if oe.path.is_path_parent(externalsrc, d.expand(cleandir)):
Patrick Williamsc124f4f2015-09-15 14:41:29 -050098 cleandirs.remove(cleandir)
99 setvalue = True
100 if setvalue:
101 d.setVarFlag(task, 'cleandirs', ' '.join(cleandirs))
102
103 fetch_tasks = ['do_fetch', 'do_unpack']
104 # If we deltask do_patch, there's no dependency to ensure do_unpack gets run, so add one
Patrick Williamsf1e5d692016-03-30 15:21:19 -0500105 # Note that we cannot use d.appendVarFlag() here because deps is expected to be a list object, not a string
106 d.setVarFlag('do_configure', 'deps', (d.getVarFlag('do_configure', 'deps', False) or []) + ['do_unpack'])
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500107
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500108 for task in d.getVar("SRCTREECOVEREDTASKS").split():
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500109 if local_srcuri and task in fetch_tasks:
110 continue
111 bb.build.deltask(task, d)
112
113 d.prependVarFlag('do_compile', 'prefuncs', "externalsrc_compile_prefunc ")
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500114 d.prependVarFlag('do_configure', 'prefuncs', "externalsrc_configure_prefunc ")
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500115
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500116 d.setVarFlag('do_compile', 'file-checksums', '${@srctree_hash_files(d)}')
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600117 d.setVarFlag('do_configure', 'file-checksums', '${@srctree_configure_hash_files(d)}')
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500118
119 # We don't want the workdir to go away
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500120 d.appendVar('RM_WORK_EXCLUDE', ' ' + d.getVar('PN'))
121
122 bb.build.addtask('do_buildclean',
123 'do_clean' if d.getVar('S') == d.getVar('B') else None,
124 None, d)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500125
126 # If B=S the same builddir is used even for different architectures.
127 # Thus, use a shared CONFIGURESTAMPFILE and STAMP directory so that
128 # change of do_configure task hash is correctly detected and stamps are
129 # invalidated if e.g. MACHINE changes.
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500130 if d.getVar('S') == d.getVar('B'):
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500131 configstamp = '${TMPDIR}/work-shared/${PN}/${EXTENDPE}${PV}-${PR}/configure.sstate'
132 d.setVar('CONFIGURESTAMPFILE', configstamp)
133 d.setVar('STAMP', '${STAMPS_DIR}/work-shared/${PN}/${EXTENDPE}${PV}-${PR}')
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500134 d.setVar('STAMPCLEAN', '${STAMPS_DIR}/work-shared/${PN}/*-*')
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500135}
136
137python externalsrc_configure_prefunc() {
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500138 s_dir = d.getVar('S')
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500139 # Create desired symlinks
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500140 symlinks = (d.getVar('EXTERNALSRC_SYMLINKS') or '').split()
141 newlinks = []
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500142 for symlink in symlinks:
143 symsplit = symlink.split(':', 1)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500144 lnkfile = os.path.join(s_dir, symsplit[0])
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500145 target = d.expand(symsplit[1])
146 if len(symsplit) > 1:
147 if os.path.islink(lnkfile):
148 # Link already exists, leave it if it points to the right location already
149 if os.readlink(lnkfile) == target:
150 continue
151 os.unlink(lnkfile)
152 elif os.path.exists(lnkfile):
153 # File/dir exists with same name as link, just leave it alone
154 continue
155 os.symlink(target, lnkfile)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500156 newlinks.append(symsplit[0])
157 # Hide the symlinks from git
158 try:
159 git_exclude_file = os.path.join(s_dir, '.git/info/exclude')
160 if os.path.exists(git_exclude_file):
161 with open(git_exclude_file, 'r+') as efile:
162 elines = efile.readlines()
163 for link in newlinks:
164 if link in elines or '/'+link in elines:
165 continue
166 efile.write('/' + link + '\n')
167 except IOError as ioe:
168 bb.note('Failed to hide EXTERNALSRC_SYMLINKS from git')
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500169}
170
171python externalsrc_compile_prefunc() {
172 # Make it obvious that this is happening, since forgetting about it could lead to much confusion
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500173 bb.plain('NOTE: %s: compiling from external source tree %s' % (d.getVar('PN'), d.getVar('EXTERNALSRC')))
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500174}
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500175
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500176do_buildclean[dirs] = "${S} ${B}"
177do_buildclean[nostamp] = "1"
178do_buildclean[doc] = "Call 'make clean' or equivalent in ${B}"
179externalsrc_do_buildclean() {
180 if [ -e Makefile -o -e makefile -o -e GNUmakefile ]; then
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500181 rm -f ${@' '.join([x.split(':')[0] for x in (d.getVar('EXTERNALSRC_SYMLINKS') or '').split()])}
Brad Bishop316dfdd2018-06-25 12:45:53 -0400182 if [ "${CLEANBROKEN}" != "1" ]; then
183 oe_runmake clean || die "make failed"
184 fi
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500185 else
186 bbnote "nothing to do - no makefile found"
187 fi
188}
189
190def srctree_hash_files(d, srcdir=None):
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500191 import shutil
192 import subprocess
193 import tempfile
194
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500195 s_dir = srcdir or d.getVar('EXTERNALSRC')
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500196 git_dir = None
197
198 try:
199 git_dir = os.path.join(s_dir,
Brad Bishop316dfdd2018-06-25 12:45:53 -0400200 subprocess.check_output(['git', '-C', s_dir, 'rev-parse', '--git-dir'], stderr=subprocess.DEVNULL).decode("utf-8").rstrip())
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500201 except subprocess.CalledProcessError:
202 pass
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500203
204 ret = " "
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500205 if git_dir is not None:
206 oe_hash_file = os.path.join(git_dir, 'oe-devtool-tree-sha1')
207 with tempfile.NamedTemporaryFile(prefix='oe-devtool-index') as tmp_index:
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500208 # Clone index
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500209 shutil.copyfile(os.path.join(git_dir, 'index'), tmp_index.name)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500210 # Update our custom index
211 env = os.environ.copy()
212 env['GIT_INDEX_FILE'] = tmp_index.name
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500213 subprocess.check_output(['git', 'add', '-A', '.'], cwd=s_dir, env=env)
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600214 sha1 = subprocess.check_output(['git', 'write-tree'], cwd=s_dir, env=env).decode("utf-8")
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500215 with open(oe_hash_file, 'w') as fobj:
216 fobj.write(sha1)
217 ret = oe_hash_file + ':True'
218 else:
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500219 ret = s_dir + '/*:True'
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500220 return ret
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600221
222def srctree_configure_hash_files(d):
223 """
224 Get the list of files that should trigger do_configure to re-execute,
225 based on the value of CONFIGURE_FILES
226 """
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500227 in_files = (d.getVar('CONFIGURE_FILES') or '').split()
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600228 out_items = []
229 search_files = []
230 for entry in in_files:
231 if entry.startswith('/'):
232 out_items.append('%s:%s' % (entry, os.path.exists(entry)))
233 else:
234 search_files.append(entry)
235 if search_files:
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500236 s_dir = d.getVar('EXTERNALSRC')
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600237 for root, _, files in os.walk(s_dir):
238 for f in files:
239 if f in search_files:
240 out_items.append('%s:True' % os.path.join(root, f))
241 return ' '.join(out_items)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500242
243EXPORT_FUNCTIONS do_buildclean