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379 lines
12 KiB
379 lines
12 KiB
# Copyright (c) 2014-present PlatformIO <contact@platformio.org>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import absolute_import
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import atexit
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import re
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import sys
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from os import environ, remove, walk
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from os.path import basename, isdir, isfile, join, realpath, relpath, sep
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from tempfile import mkstemp
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from SCons.Action import Action # pylint: disable=import-error
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from SCons.Script import ARGUMENTS # pylint: disable=import-error
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from platformio import fs, util
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from platformio.compat import glob_escape
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from platformio.managers.core import get_core_package_dir
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from platformio.proc import exec_command
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class InoToCPPConverter(object):
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PROTOTYPE_RE = re.compile(
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r"""^(
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(?:template\<.*\>\s*)? # template
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([a-z_\d\&]+\*?\s+){1,2} # return type
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([a-z_\d]+\s*) # name of prototype
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\([a-z_,\.\*\&\[\]\s\d]*\) # arguments
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)\s*(\{|;) # must end with `{` or `;`
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""",
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re.X | re.M | re.I,
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)
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DETECTMAIN_RE = re.compile(r"void\s+(setup|loop)\s*\(", re.M | re.I)
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PROTOPTRS_TPLRE = r"\([^&\(]*&(%s)[^\)]*\)"
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def __init__(self, env):
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self.env = env
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self._main_ino = None
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def is_main_node(self, contents):
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return self.DETECTMAIN_RE.search(contents)
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def convert(self, nodes):
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contents = self.merge(nodes)
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if not contents:
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return None
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return self.process(contents)
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def merge(self, nodes):
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assert nodes
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lines = []
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for node in nodes:
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contents = fs.get_file_contents(node.get_path())
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_lines = ['# 1 "%s"' % node.get_path().replace("\\", "/"), contents]
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if self.is_main_node(contents):
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lines = _lines + lines
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self._main_ino = node.get_path()
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else:
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lines.extend(_lines)
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if not self._main_ino:
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self._main_ino = nodes[0].get_path()
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return "\n".join(["#include <Arduino.h>"] + lines) if lines else None
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def process(self, contents):
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out_file = self._main_ino + ".cpp"
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assert self._gcc_preprocess(contents, out_file)
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contents = fs.get_file_contents(out_file)
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contents = self._join_multiline_strings(contents)
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fs.write_file_contents(
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out_file, self.append_prototypes(contents), errors="backslashreplace"
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)
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return out_file
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def _gcc_preprocess(self, contents, out_file):
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tmp_path = mkstemp()[1]
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fs.write_file_contents(tmp_path, contents, errors="backslashreplace")
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self.env.Execute(
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self.env.VerboseAction(
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'$CXX -o "{0}" -x c++ -fpreprocessed -dD -E "{1}"'.format(
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out_file, tmp_path
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),
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"Converting " + basename(out_file[:-4]),
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)
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)
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atexit.register(_delete_file, tmp_path)
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return isfile(out_file)
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def _join_multiline_strings(self, contents):
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if "\\\n" not in contents:
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return contents
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newlines = []
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linenum = 0
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stropen = False
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for line in contents.split("\n"):
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_linenum = self._parse_preproc_line_num(line)
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if _linenum is not None:
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linenum = _linenum
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else:
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linenum += 1
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if line.endswith("\\"):
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if line.startswith('"'):
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stropen = True
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newlines.append(line[:-1])
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continue
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if stropen:
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newlines[len(newlines) - 1] += line[:-1]
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continue
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elif stropen and line.endswith(('",', '";')):
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newlines[len(newlines) - 1] += line
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stropen = False
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newlines.append(
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'#line %d "%s"' % (linenum, self._main_ino.replace("\\", "/"))
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)
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continue
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newlines.append(line)
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return "\n".join(newlines)
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@staticmethod
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def _parse_preproc_line_num(line):
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if not line.startswith("#"):
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return None
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tokens = line.split(" ", 3)
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if len(tokens) > 2 and tokens[1].isdigit():
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return int(tokens[1])
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return None
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def _parse_prototypes(self, contents):
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prototypes = []
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reserved_keywords = set(["if", "else", "while"])
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for match in self.PROTOTYPE_RE.finditer(contents):
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if (
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set([match.group(2).strip(), match.group(3).strip()])
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& reserved_keywords
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):
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continue
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prototypes.append(match)
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return prototypes
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def _get_total_lines(self, contents):
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total = 0
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if contents.endswith("\n"):
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contents = contents[:-1]
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for line in contents.split("\n")[::-1]:
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linenum = self._parse_preproc_line_num(line)
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if linenum is not None:
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return total + linenum
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total += 1
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return total
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def append_prototypes(self, contents):
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prototypes = self._parse_prototypes(contents) or []
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# skip already declared prototypes
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declared = set(m.group(1).strip() for m in prototypes if m.group(4) == ";")
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prototypes = [m for m in prototypes if m.group(1).strip() not in declared]
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if not prototypes:
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return contents
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prototype_names = set(m.group(3).strip() for m in prototypes)
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split_pos = prototypes[0].start()
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match_ptrs = re.search(
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self.PROTOPTRS_TPLRE % ("|".join(prototype_names)),
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contents[:split_pos],
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re.M,
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)
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if match_ptrs:
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split_pos = contents.rfind("\n", 0, match_ptrs.start()) + 1
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result = []
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result.append(contents[:split_pos].strip())
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result.append("%s;" % ";\n".join([m.group(1) for m in prototypes]))
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result.append(
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'#line %d "%s"'
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% (
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self._get_total_lines(contents[:split_pos]),
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self._main_ino.replace("\\", "/"),
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)
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)
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result.append(contents[split_pos:].strip())
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return "\n".join(result)
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def ConvertInoToCpp(env):
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src_dir = glob_escape(env.subst("$PROJECT_SRC_DIR"))
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ino_nodes = env.Glob(join(src_dir, "*.ino")) + env.Glob(join(src_dir, "*.pde"))
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if not ino_nodes:
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return
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c = InoToCPPConverter(env)
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out_file = c.convert(ino_nodes)
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atexit.register(_delete_file, out_file)
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def _delete_file(path):
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try:
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if isfile(path):
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remove(path)
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except: # pylint: disable=bare-except
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pass
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@util.memoized()
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def _get_compiler_type(env):
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if env.subst("$CC").endswith("-gcc"):
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return "gcc"
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try:
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sysenv = environ.copy()
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sysenv["PATH"] = str(env["ENV"]["PATH"])
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result = exec_command([env.subst("$CC"), "-v"], env=sysenv)
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except OSError:
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return None
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if result["returncode"] != 0:
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return None
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output = "".join([result["out"], result["err"]]).lower()
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if "clang" in output and "LLVM" in output:
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return "clang"
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if "gcc" in output:
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return "gcc"
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return None
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def GetCompilerType(env):
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return _get_compiler_type(env)
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def GetActualLDScript(env):
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def _lookup_in_ldpath(script):
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for d in env.get("LIBPATH", []):
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path = join(env.subst(d), script)
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if isfile(path):
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return path
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return None
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script = None
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script_in_next = False
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for f in env.get("LINKFLAGS", []):
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raw_script = None
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if f == "-T":
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script_in_next = True
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continue
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if script_in_next:
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script_in_next = False
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raw_script = f
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elif f.startswith("-Wl,-T"):
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raw_script = f[6:]
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else:
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continue
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script = env.subst(raw_script.replace('"', "").strip())
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if isfile(script):
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return script
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path = _lookup_in_ldpath(script)
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if path:
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return path
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if script:
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sys.stderr.write(
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"Error: Could not find '%s' LD script in LDPATH '%s'\n"
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% (script, env.subst("$LIBPATH"))
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)
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env.Exit(1)
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if not script and "LDSCRIPT_PATH" in env:
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path = _lookup_in_ldpath(env["LDSCRIPT_PATH"])
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if path:
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return path
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sys.stderr.write("Error: Could not find LD script\n")
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env.Exit(1)
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def VerboseAction(_, act, actstr):
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if int(ARGUMENTS.get("PIOVERBOSE", 0)):
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return act
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return Action(act, actstr)
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def PioClean(env, clean_dir):
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if not isdir(clean_dir):
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print("Build environment is clean")
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env.Exit(0)
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clean_rel_path = relpath(clean_dir)
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for root, _, files in walk(clean_dir):
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for f in files:
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dst = join(root, f)
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remove(dst)
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print(
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"Removed %s" % (dst if clean_rel_path.startswith(".") else relpath(dst))
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)
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print("Done cleaning")
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fs.rmtree(clean_dir)
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env.Exit(0)
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def ConfigureDebugFlags(env):
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def _cleanup_debug_flags(scope):
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if scope not in env:
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return
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unflags = ["-Os", "-g"]
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for level in [0, 1, 2, 3]:
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for flag in ("O", "g", "ggdb"):
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unflags.append("-%s%d" % (flag, level))
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env[scope] = [f for f in env.get(scope, []) if f not in unflags]
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env.Append(CPPDEFINES=["__PLATFORMIO_BUILD_DEBUG__"])
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for scope in ("ASFLAGS", "CCFLAGS", "LINKFLAGS"):
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_cleanup_debug_flags(scope)
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debug_flags = env.ParseFlags(env.GetProjectOption("debug_build_flags"))
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env.MergeFlags(debug_flags)
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optimization_flags = [
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f for f in debug_flags.get("CCFLAGS", []) if f.startswith(("-O", "-g"))
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]
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if optimization_flags:
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env.AppendUnique(ASFLAGS=optimization_flags, LINKFLAGS=optimization_flags)
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def ConfigureTestTarget(env):
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env.Append(
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CPPDEFINES=["UNIT_TEST", "UNITY_INCLUDE_CONFIG_H"],
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CPPPATH=[join("$BUILD_DIR", "UnityTestLib")],
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)
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unitylib = env.BuildLibrary(
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join("$BUILD_DIR", "UnityTestLib"), get_core_package_dir("tool-unity")
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)
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env.Prepend(LIBS=[unitylib])
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src_filter = ["+<*.cpp>", "+<*.c>"]
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if "PIOTEST_RUNNING_NAME" in env:
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src_filter.append("+<%s%s>" % (env["PIOTEST_RUNNING_NAME"], sep))
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env.Replace(PIOTEST_SRC_FILTER=src_filter)
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def GetExtraScripts(env, scope):
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items = []
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for item in env.GetProjectOption("extra_scripts", []):
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if scope == "post" and ":" not in item:
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items.append(item)
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elif item.startswith("%s:" % scope):
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items.append(item[len(scope) + 1 :])
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if not items:
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return items
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with fs.cd(env.subst("$PROJECT_DIR")):
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return [realpath(item) for item in items]
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def exists(_):
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return True
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def generate(env):
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env.AddMethod(ConvertInoToCpp)
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env.AddMethod(GetCompilerType)
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env.AddMethod(GetActualLDScript)
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env.AddMethod(VerboseAction)
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env.AddMethod(PioClean)
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env.AddMethod(ConfigureDebugFlags)
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env.AddMethod(ConfigureTestTarget)
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env.AddMethod(GetExtraScripts)
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return env
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