build: Initialize Python virtual environment and install project dependencies.

.venv/lib/python3.11/site-packages/platformio/check/tools/cppcheck.py

@@ -0,0 +1,271 @@
+# 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.
+
+import os
+
+import click
+
+from platformio import proc
+from platformio.check.defect import DefectItem
+from platformio.check.tools.base import CheckToolBase
+
+
+class CppcheckCheckTool(CheckToolBase):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._field_delimiter = "<&PIO&>"
+        self._buffer = ""
+        self.defect_fields = [
+            "severity",
+            "message",
+            "file",
+            "line",
+            "column",
+            "callstack",
+            "cwe",
+            "id",
+        ]
+
+    def tool_output_filter(self, line):  # pylint: disable=arguments-differ
+        if (
+            not self.options.get("verbose")
+            and "--suppress=unmatchedSuppression:" in line
+        ):
+            return ""
+
+        if any(
+            msg in line
+            for msg in (
+                "No C or C++ source files found",
+                "unrecognized command line option",
+                "there was an internal error",
+            )
+        ):
+            self._bad_input = True
+
+        return line
+
+    def parse_defect(self, raw_line):  # pylint: disable=arguments-differ
+        if self._field_delimiter not in raw_line:
+            return None
+
+        self._buffer += raw_line
+        if any(f not in self._buffer for f in self.defect_fields):
+            return None
+
+        args = {}
+        for field in self._buffer.split(self._field_delimiter):
+            field = field.strip().replace('"', "")
+            name, value = field.split("=", 1)
+            args[name] = value
+
+        args["category"] = args["severity"]
+        if args["severity"] == "error":
+            args["severity"] = DefectItem.SEVERITY_HIGH
+        elif args["severity"] == "warning":
+            args["severity"] = DefectItem.SEVERITY_MEDIUM
+        else:
+            args["severity"] = DefectItem.SEVERITY_LOW
+
+        # Skip defects found in third-party software, but keep in mind that such defects
+        # might break checking process so defects from project files are not reported
+        breaking_defect_ids = ("preprocessorErrorDirective", "syntaxError")
+        if (
+            args.get("file", "")
+            .lower()
+            .startswith(self.config.get("platformio", "packages_dir").lower())
+        ):
+            if args["id"] in breaking_defect_ids:
+                if self.options.get("verbose"):
+                    click.echo(
+                        "Error: Found a breaking defect '%s' in %s:%s\n"
+                        "Please note: check results might not be valid!\n"
+                        "Try adding --skip-packages"
+                        % (args.get("message"), args.get("file"), args.get("line"))
+                    )
+                    click.echo()
+                self._bad_input = True
+            self._buffer = ""
+            return None
+
+        self._buffer = ""
+        return DefectItem(**args)
+
+    def configure_command(self, language, src_file):  # pylint: disable=arguments-differ
+        tool_path = os.path.join(self.get_tool_dir("tool-cppcheck"), "cppcheck")
+
+        cmd = [
+            tool_path,
+            "--addon-python=%s" % proc.get_pythonexe_path(),
+            "--error-exitcode=3",
+            "--verbose" if self.options.get("verbose") else "--quiet",
+        ]
+
+        cmd.append(
+            '--template="%s"'
+            % self._field_delimiter.join(
+                ["{0}={{{0}}}".format(f) for f in self.defect_fields]
+            )
+        )
+
+        flags = self.get_flags("cppcheck")
+        if not flags:
+            # by default user can suppress reporting individual defects
+            # directly in code // cppcheck-suppress warningID
+            cmd.append("--inline-suppr")
+        if not self.is_flag_set("--platform", flags):
+            cmd.append("--platform=unspecified")
+        if not self.is_flag_set("--enable", flags):
+            enabled_checks = [
+                "warning",
+                "style",
+                "performance",
+                "portability",
+                "unusedFunction",
+            ]
+            cmd.append("--enable=%s" % ",".join(enabled_checks))
+
+        if not self.is_flag_set("--language", flags):
+            cmd.append("--language=" + language)
+
+        build_flags = self.cxx_flags if language == "c++" else self.cc_flags
+
+        if not self.is_flag_set("--std", flags):
+            # Try to guess the standard version from the build flags
+            for flag in build_flags:
+                if "-std" in flag:
+                    cmd.append("-" + self.convert_language_standard(flag))
+
+        cmd.extend(
+            ["-D%s" % d for d in self.cpp_defines + self.toolchain_defines[language]]
+        )
+
+        cmd.extend(flags)
+
+        cmd.extend(
+            "--include=" + inc
+            for inc in self.get_forced_includes(build_flags, self.cpp_includes)
+        )
+        cmd.append("--includes-file=%s" % self._generate_inc_file())
+        cmd.append('"%s"' % src_file)
+
+        return cmd
+
+    @staticmethod
+    def get_forced_includes(build_flags, includes):
+        def _extract_filepath(flag, include_options, build_flags):
+            path = ""
+            for option in include_options:
+                if not flag.startswith(option):
+                    continue
+                if flag.split(option)[1].strip():
+                    path = flag.split(option)[1].strip()
+                elif build_flags.index(flag) + 1 < len(build_flags):
+                    path = build_flags[build_flags.index(flag) + 1]
+            return path
+
+        def _search_include_dir(filepath, include_paths):
+            for inc_path in include_paths:
+                path = os.path.join(inc_path, filepath)
+                if os.path.isfile(path):
+                    return path
+            return ""
+
+        result = []
+        include_options = ("-include", "-imacros")
+        for f in build_flags:
+            if f.startswith(include_options):
+                filepath = _extract_filepath(f, include_options, build_flags)
+                if not os.path.isabs(filepath):
+                    filepath = _search_include_dir(filepath, includes)
+                if os.path.isfile(filepath):
+                    result.append(filepath)
+
+        return result
+
+    def _generate_src_file(self, src_files):
+        return self._create_tmp_file("\n".join(src_files))
+
+    def _generate_inc_file(self):
+        result = []
+        for inc in self.cpp_includes:
+            if self.options.get("skip_packages") and inc.lower().startswith(
+                self.config.get("platformio", "packages_dir").lower()
+            ):
+                continue
+            result.append(inc)
+        return self._create_tmp_file("\n".join(result))
+
+    def clean_up(self):
+        super().clean_up()
+
+        # delete temporary dump files generated by addons
+        if not self.is_flag_set("--addon", self.get_flags("cppcheck")):
+            return
+
+        for files in self.get_project_target_files(
+            self.project_dir, self.options["src_filters"]
+        ).values():
+            for f in files:
+                dump_file = f + ".dump"
+                if os.path.isfile(dump_file):
+                    os.remove(dump_file)
+
+    @staticmethod
+    def is_check_successful(cmd_result):
+        # Cppcheck is configured to return '3' if a defect is found
+        return cmd_result["returncode"] in (0, 3)
+
+    @staticmethod
+    def convert_language_standard(flag):
+        cpp_standards_map = {
+            "0x": "11",
+            "1y": "14",
+            "1z": "17",
+            "2a": "20",
+        }
+
+        standard = flag[-2:]
+        # Note: GNU extensions are not supported and converted to regular standards
+        return flag.replace("gnu", "c").replace(
+            standard, cpp_standards_map.get(standard, standard)
+        )
+
+    def check(self, on_defect_callback=None):
+        self._on_defect_callback = on_defect_callback
+
+        project_files = self.get_project_target_files(
+            self.project_dir, self.options["src_filters"]
+        )
+        src_files_scope = ("c", "c++")
+        if not any(project_files[t] for t in src_files_scope):
+            click.echo("Error: Nothing to check.")
+            return True
+
+        for scope, files in project_files.items():
+            if scope not in src_files_scope:
+                continue
+            for src_file in files:
+                cmd = self.configure_command(scope, src_file)
+                if not cmd:
+                    self._bad_input = True
+                    continue
+                if self.options.get("verbose"):
+                    click.echo(" ".join(cmd))
+
+                self.execute_check_cmd(cmd)
+
+        self.clean_up()
+
+        return self._bad_input