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
import atexit
import glob
import io
import os
import re
import sys
import tempfile
import click
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
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()
def _get_compiler_type(env):
def GetCompilerType(env):
if env.subst("$CC").endswith("-gcc"):
return "gcc"
try:
@ -270,10 +41,6 @@ def _get_compiler_type(env):
return None
def GetCompilerType(env):
return _get_compiler_type(env)
def GetActualLDScript(env):
def _lookup_in_ldpath(script):
for d in env.get("LIBPATH", []):
@ -319,7 +86,7 @@ def GetActualLDScript(env):
env.Exit(1)
def ConfigureDebugFlags(env):
def ConfigureDebugTarget(env):
def _cleanup_debug_flags(scope):
if scope not in env:
return
@ -384,7 +151,6 @@ def exists(_):
def generate(env):
env.AddMethod(ConvertInoToCpp)
env.AddMethod(GetCompilerType)
env.AddMethod(GetActualLDScript)
env.AddMethod(ConfigureDebugFlags)