Move INO converter to a separate tool

This commit is contained in:
Ivan Kravets
2022-04-19 11:36:05 +03:00
parent 9ce0b0e25b
commit 943c6bc59c
2 changed files with 256 additions and 236 deletions

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@ -0,0 +1,254 @@
# Copyright (c) 2014-present PlatformIO <contact@platformio.org>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import
import atexit
import glob
import io
import os
import re
import tempfile
import click
from platformio.compat import get_filesystem_encoding, get_locale_encoding
class InoToCPPConverter(object):
PROTOTYPE_RE = re.compile(
r"""^(
(?:template\<.*\>\s*)? # template
([a-z_\d\&]+\*?\s+){1,2} # return type
([a-z_\d]+\s*) # name of prototype
\([a-z_,\.\*\&\[\]\s\d]*\) # arguments
)\s*(\{|;) # must end with `{` or `;`
""",
re.X | re.M | re.I,
)
DETECTMAIN_RE = re.compile(r"void\s+(setup|loop)\s*\(", re.M | re.I)
PROTOPTRS_TPLRE = r"\([^&\(]*&(%s)[^\)]*\)"
def __init__(self, env):
self.env = env
self._main_ino = None
self._safe_encoding = None
def read_safe_contents(self, path):
error_reported = False
for encoding in (
"utf-8",
None,
get_filesystem_encoding(),
get_locale_encoding(),
"latin-1",
):
try:
with io.open(path, encoding=encoding) as fp:
contents = fp.read()
self._safe_encoding = encoding
return contents
except UnicodeDecodeError:
if not error_reported:
error_reported = True
click.secho(
"Unicode decode error has occurred, please remove invalid "
"(non-ASCII or non-UTF8) characters from %s file or convert it to UTF-8"
% path,
fg="yellow",
err=True,
)
return ""
def write_safe_contents(self, path, contents):
with io.open(
path, "w", encoding=self._safe_encoding, errors="backslashreplace"
) as fp:
return fp.write(contents)
def is_main_node(self, contents):
return self.DETECTMAIN_RE.search(contents)
def convert(self, nodes):
contents = self.merge(nodes)
if not contents:
return None
return self.process(contents)
def merge(self, nodes):
assert nodes
lines = []
for node in nodes:
contents = self.read_safe_contents(node.get_path())
_lines = ['# 1 "%s"' % node.get_path().replace("\\", "/"), contents]
if self.is_main_node(contents):
lines = _lines + lines
self._main_ino = node.get_path()
else:
lines.extend(_lines)
if not self._main_ino:
self._main_ino = nodes[0].get_path()
return "\n".join(["#include <Arduino.h>"] + lines) if lines else None
def process(self, contents):
out_file = self._main_ino + ".cpp"
assert self._gcc_preprocess(contents, out_file)
contents = self.read_safe_contents(out_file)
contents = self._join_multiline_strings(contents)
self.write_safe_contents(out_file, self.append_prototypes(contents))
return out_file
def _gcc_preprocess(self, contents, out_file):
tmp_path = tempfile.mkstemp()[1]
self.write_safe_contents(tmp_path, contents)
self.env.Execute(
self.env.VerboseAction(
'$CXX -o "{0}" -x c++ -fpreprocessed -dD -E "{1}"'.format(
out_file, tmp_path
),
"Converting " + os.path.basename(out_file[:-4]),
)
)
atexit.register(_delete_file, tmp_path)
return os.path.isfile(out_file)
def _join_multiline_strings(self, contents):
if "\\\n" not in contents:
return contents
newlines = []
linenum = 0
stropen = False
for line in contents.split("\n"):
_linenum = self._parse_preproc_line_num(line)
if _linenum is not None:
linenum = _linenum
else:
linenum += 1
if line.endswith("\\"):
if line.startswith('"'):
stropen = True
newlines.append(line[:-1])
continue
if stropen:
newlines[len(newlines) - 1] += line[:-1]
continue
elif stropen and line.endswith(('",', '";')):
newlines[len(newlines) - 1] += line
stropen = False
newlines.append(
'#line %d "%s"' % (linenum, self._main_ino.replace("\\", "/"))
)
continue
newlines.append(line)
return "\n".join(newlines)
@staticmethod
def _parse_preproc_line_num(line):
if not line.startswith("#"):
return None
tokens = line.split(" ", 3)
if len(tokens) > 2 and tokens[1].isdigit():
return int(tokens[1])
return None
def _parse_prototypes(self, contents):
prototypes = []
reserved_keywords = set(["if", "else", "while"])
for match in self.PROTOTYPE_RE.finditer(contents):
if (
set([match.group(2).strip(), match.group(3).strip()])
& reserved_keywords
):
continue
prototypes.append(match)
return prototypes
def _get_total_lines(self, contents):
total = 0
if contents.endswith("\n"):
contents = contents[:-1]
for line in contents.split("\n")[::-1]:
linenum = self._parse_preproc_line_num(line)
if linenum is not None:
return total + linenum
total += 1
return total
def append_prototypes(self, contents):
prototypes = self._parse_prototypes(contents) or []
# skip already declared prototypes
declared = set(m.group(1).strip() for m in prototypes if m.group(4) == ";")
prototypes = [m for m in prototypes if m.group(1).strip() not in declared]
if not prototypes:
return contents
prototype_names = set(m.group(3).strip() for m in prototypes)
split_pos = prototypes[0].start()
match_ptrs = re.search(
self.PROTOPTRS_TPLRE % ("|".join(prototype_names)),
contents[:split_pos],
re.M,
)
if match_ptrs:
split_pos = contents.rfind("\n", 0, match_ptrs.start()) + 1
result = []
result.append(contents[:split_pos].strip())
result.append("%s;" % ";\n".join([m.group(1) for m in prototypes]))
result.append(
'#line %d "%s"'
% (
self._get_total_lines(contents[:split_pos]),
self._main_ino.replace("\\", "/"),
)
)
result.append(contents[split_pos:].strip())
return "\n".join(result)
def ConvertInoToCpp(env):
src_dir = glob.escape(env.subst("$PROJECT_SRC_DIR"))
ino_nodes = env.Glob(os.path.join(src_dir, "*.ino")) + env.Glob(
os.path.join(src_dir, "*.pde")
)
if not ino_nodes:
return
c = InoToCPPConverter(env)
out_file = c.convert(ino_nodes)
atexit.register(_delete_file, out_file)
def _delete_file(path):
try:
if os.path.isfile(path):
os.remove(path)
except: # pylint: disable=bare-except
pass
def generate(env):
env.AddMethod(ConvertInoToCpp)
def exists(_):
return True

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@ -14,244 +14,15 @@
from __future__ import absolute_import from __future__ import absolute_import
import atexit
import glob
import io
import os import os
import re
import sys import sys
import tempfile
import click
from platformio import fs, util from platformio import fs, util
from platformio.compat import get_filesystem_encoding, get_locale_encoding
from platformio.package.manager.core import get_core_package_dir
from platformio.proc import exec_command from platformio.proc import exec_command
class InoToCPPConverter(object):
PROTOTYPE_RE = re.compile(
r"""^(
(?:template\<.*\>\s*)? # template
([a-z_\d\&]+\*?\s+){1,2} # return type
([a-z_\d]+\s*) # name of prototype
\([a-z_,\.\*\&\[\]\s\d]*\) # arguments
)\s*(\{|;) # must end with `{` or `;`
""",
re.X | re.M | re.I,
)
DETECTMAIN_RE = re.compile(r"void\s+(setup|loop)\s*\(", re.M | re.I)
PROTOPTRS_TPLRE = r"\([^&\(]*&(%s)[^\)]*\)"
def __init__(self, env):
self.env = env
self._main_ino = None
self._safe_encoding = None
def read_safe_contents(self, path):
error_reported = False
for encoding in (
"utf-8",
None,
get_filesystem_encoding(),
get_locale_encoding(),
"latin-1",
):
try:
with io.open(path, encoding=encoding) as fp:
contents = fp.read()
self._safe_encoding = encoding
return contents
except UnicodeDecodeError:
if not error_reported:
error_reported = True
click.secho(
"Unicode decode error has occurred, please remove invalid "
"(non-ASCII or non-UTF8) characters from %s file or convert it to UTF-8"
% path,
fg="yellow",
err=True,
)
return ""
def write_safe_contents(self, path, contents):
with io.open(
path, "w", encoding=self._safe_encoding, errors="backslashreplace"
) as fp:
return fp.write(contents)
def is_main_node(self, contents):
return self.DETECTMAIN_RE.search(contents)
def convert(self, nodes):
contents = self.merge(nodes)
if not contents:
return None
return self.process(contents)
def merge(self, nodes):
assert nodes
lines = []
for node in nodes:
contents = self.read_safe_contents(node.get_path())
_lines = ['# 1 "%s"' % node.get_path().replace("\\", "/"), contents]
if self.is_main_node(contents):
lines = _lines + lines
self._main_ino = node.get_path()
else:
lines.extend(_lines)
if not self._main_ino:
self._main_ino = nodes[0].get_path()
return "\n".join(["#include <Arduino.h>"] + lines) if lines else None
def process(self, contents):
out_file = self._main_ino + ".cpp"
assert self._gcc_preprocess(contents, out_file)
contents = self.read_safe_contents(out_file)
contents = self._join_multiline_strings(contents)
self.write_safe_contents(out_file, self.append_prototypes(contents))
return out_file
def _gcc_preprocess(self, contents, out_file):
tmp_path = tempfile.mkstemp()[1]
self.write_safe_contents(tmp_path, contents)
self.env.Execute(
self.env.VerboseAction(
'$CXX -o "{0}" -x c++ -fpreprocessed -dD -E "{1}"'.format(
out_file, tmp_path
),
"Converting " + os.path.basename(out_file[:-4]),
)
)
atexit.register(_delete_file, tmp_path)
return os.path.isfile(out_file)
def _join_multiline_strings(self, contents):
if "\\\n" not in contents:
return contents
newlines = []
linenum = 0
stropen = False
for line in contents.split("\n"):
_linenum = self._parse_preproc_line_num(line)
if _linenum is not None:
linenum = _linenum
else:
linenum += 1
if line.endswith("\\"):
if line.startswith('"'):
stropen = True
newlines.append(line[:-1])
continue
if stropen:
newlines[len(newlines) - 1] += line[:-1]
continue
elif stropen and line.endswith(('",', '";')):
newlines[len(newlines) - 1] += line
stropen = False
newlines.append(
'#line %d "%s"' % (linenum, self._main_ino.replace("\\", "/"))
)
continue
newlines.append(line)
return "\n".join(newlines)
@staticmethod
def _parse_preproc_line_num(line):
if not line.startswith("#"):
return None
tokens = line.split(" ", 3)
if len(tokens) > 2 and tokens[1].isdigit():
return int(tokens[1])
return None
def _parse_prototypes(self, contents):
prototypes = []
reserved_keywords = set(["if", "else", "while"])
for match in self.PROTOTYPE_RE.finditer(contents):
if (
set([match.group(2).strip(), match.group(3).strip()])
& reserved_keywords
):
continue
prototypes.append(match)
return prototypes
def _get_total_lines(self, contents):
total = 0
if contents.endswith("\n"):
contents = contents[:-1]
for line in contents.split("\n")[::-1]:
linenum = self._parse_preproc_line_num(line)
if linenum is not None:
return total + linenum
total += 1
return total
def append_prototypes(self, contents):
prototypes = self._parse_prototypes(contents) or []
# skip already declared prototypes
declared = set(m.group(1).strip() for m in prototypes if m.group(4) == ";")
prototypes = [m for m in prototypes if m.group(1).strip() not in declared]
if not prototypes:
return contents
prototype_names = set(m.group(3).strip() for m in prototypes)
split_pos = prototypes[0].start()
match_ptrs = re.search(
self.PROTOPTRS_TPLRE % ("|".join(prototype_names)),
contents[:split_pos],
re.M,
)
if match_ptrs:
split_pos = contents.rfind("\n", 0, match_ptrs.start()) + 1
result = []
result.append(contents[:split_pos].strip())
result.append("%s;" % ";\n".join([m.group(1) for m in prototypes]))
result.append(
'#line %d "%s"'
% (
self._get_total_lines(contents[:split_pos]),
self._main_ino.replace("\\", "/"),
)
)
result.append(contents[split_pos:].strip())
return "\n".join(result)
def ConvertInoToCpp(env):
src_dir = glob.escape(env.subst("$PROJECT_SRC_DIR"))
ino_nodes = env.Glob(os.path.join(src_dir, "*.ino")) + env.Glob(
os.path.join(src_dir, "*.pde")
)
if not ino_nodes:
return
c = InoToCPPConverter(env)
out_file = c.convert(ino_nodes)
atexit.register(_delete_file, out_file)
def _delete_file(path):
try:
if os.path.isfile(path):
os.remove(path)
except: # pylint: disable=bare-except
pass
@util.memoized() @util.memoized()
def _get_compiler_type(env): def GetCompilerType(env):
if env.subst("$CC").endswith("-gcc"): if env.subst("$CC").endswith("-gcc"):
return "gcc" return "gcc"
try: try:
@ -270,10 +41,6 @@ def _get_compiler_type(env):
return None return None
def GetCompilerType(env):
return _get_compiler_type(env)
def GetActualLDScript(env): def GetActualLDScript(env):
def _lookup_in_ldpath(script): def _lookup_in_ldpath(script):
for d in env.get("LIBPATH", []): for d in env.get("LIBPATH", []):
@ -319,7 +86,7 @@ def GetActualLDScript(env):
env.Exit(1) env.Exit(1)
def ConfigureDebugFlags(env): def ConfigureDebugTarget(env):
def _cleanup_debug_flags(scope): def _cleanup_debug_flags(scope):
if scope not in env: if scope not in env:
return return
@ -384,7 +151,6 @@ def exists(_):
def generate(env): def generate(env):
env.AddMethod(ConvertInoToCpp)
env.AddMethod(GetCompilerType) env.AddMethod(GetCompilerType)
env.AddMethod(GetActualLDScript) env.AddMethod(GetActualLDScript)
env.AddMethod(ConfigureDebugFlags) env.AddMethod(ConfigureDebugFlags)