Avoid conans import

recipes/lzham/all/conanfile.py

@@ -3,14 +3,22 @@
 from conan import ConanFile
 from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
 from conan.tools.files import (
-    apply_conandata_patches, copy, export_conandata_patches, get, rmdir
+    apply_conandata_patches,
+    copy,
+    export_conandata_patches,
+    get,
+    replace_in_file,
+    rmdir
 )
 from conan.tools.layout import vs_layout
-from conan.tools.microsoft import MSBuildDeps, MSBuildToolchain, VCVars, is_msvc
-from conans import MSBuild
+from conan.tools.microsoft import (
+    MSBuild, MSBuildDeps, MSBuildToolchain, VCVars, is_msvc
+)
 
 required_conan_version = ">=1.52.0"
 
+SLN_FILE = "lzham.sln"
+
 
 class PackageConan(ConanFile):
     name = "lzham"
@@ -36,6 +44,63 @@ class PackageConan(ConanFile):
         "disable_threading": False,
     }
 
+    def _patch_sources(self):
+        apply_conandata_patches(self)
+
+        if not is_msvc(self):
+            # Remove lzhamtest from root CMakeLists.txt.
+            replace_in_file(
+                self,
+                os.path.join(self.source_folder, "CMakeLists.txt"),
+                "add_subdirectory(lzhamtest)\n",
+                ""
+            )
+            return
+        new_sln = []
+        # Remove example and test projects from sln.
+        with open(os.path.join(
+            self.source_folder, "lzham.sln"
+        ), encoding="utf-8") as f:
+            line = f.readline()
+            while line:
+                if (
+                    line.startswith("Project(")
+                    and ("lzhamtest" in line or "example" in line)
+                ):
+                    # Don't write the current line and skip the "EndProject"
+                    # line.
+                    f.readline()
+                else:
+                    new_sln.append(line)
+                line = f.readline()
+        with open(os.path.join(
+            self.source_folder, "lzham.sln"
+        ), "w", encoding="utf-8") as f:
+            f.write("".join(new_sln))
+
+        # Inject conantoolchain.props so that correct platform toolset is used.
+        projects = [(x, f"{x}.vcxproj") for x in (
+            "lzhamcomp",
+            "lzhamdecomp",
+            "lzhamlib",
+        )]
+        projects.append(("lzhamdll", "lzham.vcxproj"))
+        search_str = (
+            '  <Import Project='
+            '"$(VCTargetsPath)\\Microsoft.Cpp.Default.props" />'
+        )
+
+        for p in projects:
+            replace_in_file(
+                self,
+                os.path.join(self.source_folder, *p),
+                search_str,
+                '  <ImportGroup Label="PropertySheets">\n'
+                    '    <Import Project="..\\conan\\conantoolchain.props" />\n'
+                    '  </ImportGroup>\n'
+                    + search_str
+            )
+
     def export_sources(self):
         export_conandata_patches(self)
 
@@ -74,13 +139,16 @@ def generate(self):
             tc.generate()
 
     def build(self):
-        apply_conandata_patches(self)
+        self._patch_sources()
         if is_msvc(self):
             msbuild = MSBuild(self)
             msbuild.build_type = (
                 "Debug" if self.settings.build_type == "Debug" else "Release"
             )
-            msbuild.build("lzham.sln", platforms={"x86": "Win32"})
+            msbuild.platform = (
+                "Win32" if self.settings.arch == "x86" else msbuild.platform
+            )
+            msbuild.build(sln="lzham.sln")
         else:
             cmake = CMake(self)
             cmake.configure()