1 files changed, 81 insertions, 0 deletions

diff --git a/meta/classes-recipe/waf.bbclass b/meta/classes-recipe/waf.bbclass
new file mode 100644
index 0000000000..5fa0cc4987
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+++ b/meta/classes-recipe/waf.bbclass
@@ -0,0 +1,81 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+# avoids build breaks when using no-static-libs.inc
+DISABLE_STATIC = ""
+
+# What Python interpretter to use.  Defaults to Python 3 but can be
+# overridden if required.
+WAF_PYTHON ?= "python3"
+
+B = "${WORKDIR}/build"
+do_configure[cleandirs] += "${B}"
+
+EXTRA_OECONF:append = " ${PACKAGECONFIG_CONFARGS}"
+
+EXTRA_OEWAF_BUILD ??= ""
+# In most cases, you want to pass the same arguments to `waf build` and `waf
+# install`, but you can override it if necessary
+EXTRA_OEWAF_INSTALL ??= "${EXTRA_OEWAF_BUILD}"
+
+def waflock_hash(d):
+    # Calculates the hash used for the waf lock file. This should include
+    # all of the user controllable inputs passed to waf configure. Note
+    # that the full paths for ${B} and ${S} are used; this is OK and desired
+    # because a change to either of these should create a unique lock file
+    # to prevent collisions.
+    import hashlib
+    h = hashlib.sha512()
+    def update(name):
+        val = d.getVar(name)
+        if val is not None:
+            h.update(val.encode('utf-8'))
+    update('S')
+    update('B')
+    update('prefix')
+    update('EXTRA_OECONF')
+    return h.hexdigest()
+
+# Use WAFLOCK to specify a separate lock file. The build is already
+# sufficiently isolated by setting the output directory, this ensures that
+# bitbake won't step on toes of any other configured context in the source
+# directory (e.g. if the source is coming from externalsrc and was previously
+# configured elsewhere).
+export WAFLOCK = ".lock-waf_oe_${@waflock_hash(d)}_build"
+BB_BASEHASH_IGNORE_VARS += "WAFLOCK"
+
+python waf_preconfigure() {
+    import subprocess
+    subsrcdir = d.getVar('S')
+    python = d.getVar('WAF_PYTHON')
+    wafbin = os.path.join(subsrcdir, 'waf')
+    try:
+        result = subprocess.check_output([python, wafbin, '--version'], cwd=subsrcdir, stderr=subprocess.STDOUT)
+        version = result.decode('utf-8').split()[1]
+        if bb.utils.vercmp_string_op(version, "1.8.7", ">="):
+            d.setVar("WAF_EXTRA_CONF", "--bindir=${bindir} --libdir=${libdir}")
+    except subprocess.CalledProcessError as e:
+        bb.warn("Unable to execute waf --version, exit code %d. Assuming waf version without bindir/libdir support." % e.returncode)
+    except FileNotFoundError:
+        bb.fatal("waf does not exist in %s" % subsrcdir)
+}
+
+do_configure[prefuncs] += "waf_preconfigure"
+
+waf_do_configure() {
+        (cd ${S} && ${WAF_PYTHON} ./waf configure -o ${B} --prefix=${prefix} ${WAF_EXTRA_CONF} ${EXTRA_OECONF})
+}
+
+do_compile[progress] = "outof:^\[\s*(\d+)/\s*(\d+)\]\s+"
+waf_do_compile()  {
+        (cd ${S} && ${WAF_PYTHON} ./waf build ${@oe.utils.parallel_make_argument(d, '-j%d', limit=64)} ${EXTRA_OEWAF_BUILD})
+}
+
+waf_do_install() {
+        (cd ${S} && ${WAF_PYTHON} ./waf install --destdir=${D} ${EXTRA_OEWAF_INSTALL})
+}
+
+EXPORT_FUNCTIONS do_configure do_compile do_install