mirror of
https://github.com/xoseperez/espurna.git
synced 2026-03-03 06:54:16 +01:00
111 lines
4.2 KiB
Python
111 lines
4.2 KiB
Python
import os
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import shutil
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import tempfile
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from .version import app_full_version_for_env
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# emulate .ino concatenation to speed up compilation times
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def merge_cpp(target, source, env, encoding="utf-8"):
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with tempfile.TemporaryFile() as tmp:
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tmp.write(b"// !!! Automatically generated file; DO NOT EDIT !!! \n")
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tmp.write(
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'#include "{}"\n'.format(
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env.File("${PROJECT_DIR}/espurna/espurna.h").get_abspath()
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).encode(encoding)
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)
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for src in source:
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src_include = '#include "{}"\n'.format(src.get_abspath())
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tmp.write(src_include.encode(encoding))
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tmp.seek(0)
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with open(target[0].get_abspath(), "wb") as fobj:
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shutil.copyfileobj(tmp, fobj)
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def app_add_builder_single_source(env):
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# generate things in the $BUILD_DIR, so there's no need for any extra clean-up code
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source = os.path.join("${BUILD_DIR}", "espurna_single_source", "src", "main.cpp")
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# substitute a single node instead of building it somewhere else as a lib or extra source dir
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# (...and since we can't seem to modify src_filter specifically for the project dir, only middleware works :/)
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def ignore_node(node):
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if node.name.endswith("main.cpp"):
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return env.File(source)
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return None
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project = env.Dir("${PROJECT_DIR}/espurna")
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env.AddBuildMiddleware(ignore_node, os.path.join(project.get_abspath(), "*.cpp"))
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env.Command(
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source,
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env.Glob("${PROJECT_DIR}/espurna/*.cpp"),
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env.VerboseAction(merge_cpp, "Merging project sources into $TARGET"),
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)
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def firmware_prefix(env):
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return "espurna-{}".format(app_full_version_for_env(env))
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# generate an common name for the current build
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def firmware_filename(env):
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suffix = "{}.bin".format(env["ESPURNA_BUILD_NAME"] or env["PIOENV"])
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return "-".join([firmware_prefix(env), suffix])
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def firmware_destination(env):
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destdir = env["ESPURNA_BUILD_DESTINATION"] or env["PROJECT_DIR"]
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subdir = os.path.join(destdir, firmware_prefix(env))
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return os.path.join(subdir, firmware_filename(env))
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def app_add_target_build_and_copy(env):
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from SCons.Script import Copy
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target = firmware_destination(env)
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env.AddTarget(
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"build-and-copy",
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"${BUILD_DIR}/${PROGNAME}.bin",
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env.Command(target, "${BUILD_DIR}/${PROGNAME}.bin", Copy("$TARGET", "$SOURCE")),
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title="Build firmware.bin and store a copy",
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description="Build and store firmware.bin as $ESPURNA_BUILD_DESTINATION/espurna-<version>-$ESPURNA_BUILD_NAME.bin (default destination is $PROJECT_DIR)",
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)
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env.Alias("build-and-copy", target)
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# TODO: *could* be a Builder object, just the same it will detect targets via src_suffix & suffix properties
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# but, notice that:
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# - constantly re-generating files in $project_dir only useful in development, as we need already
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# 'compiled' .re.cpp.ipp in the source at commit time
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# - .cpp.re.ipp <-> .re dependency will be injected into the scons database of the *environment*,
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# which may accidentally cause a rebuild when using 2 envs at the same time
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# - .cpp file `#include`ing the .ipp file may be built before the file is actually generated by the re2c
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# (or, it may happen in a parallel job)
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# scons has a C source scanner that is tracking `#include` directives. but, file may *already* exist before the
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# scanning phase even starts and it may be assumed something static during the build
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# (since most include directives are for the system, sdk, and the build-tree headers)
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def app_add_target_build_re2c(env):
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from SCons.Script import COMMAND_LINE_TARGETS
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targets = [
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env.File(target) for target in COMMAND_LINE_TARGETS if ".re.cpp.ipp" in target
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]
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cmd = "re2c --no-generation-date --case-ranges -W -Werror -o {} {}"
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if targets:
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sources = [
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target.File("{}".format(target.name.replace(".cpp.ipp", "")))
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for target in targets
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]
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for target, source in zip(targets, sources):
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env.Execute(
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env.VerboseAction(
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cmd.format(target, source), "Generating {}".format(target.name)
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)
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)
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env.Exit(0)
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