[DO-973] harfbuzz package (!10)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/10

recipes/flex/all/conandata.yml

@@ -0,0 +1,10 @@
+sources:
+  "2.6.4":
+    sha256: "e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995"
+    url: "https://nexus.avroid.tech/repository/devops-raw-proxy-github/westes/flex/releases/download/v2.6.4/flex-2.6.4.tar.gz"
+patches:
+  "2.6.4":
+    - patch_file: patches/darwin-newer-versions.patch
+      patch_description: "missing linker flags skipped due to a problem in configure."
+      patch_source: "https://github.com/westes/flex/issues/509"
+      patch_type: "portability"

recipes/flex/all/conanfile.py

@@ -0,0 +1,99 @@
+import os
+
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.apple import fix_apple_shared_install_name
+from conan.tools.build import cross_building
+from conan.tools.files import get, rmdir, copy, rm, export_conandata_patches, apply_conandata_patches
+from conan.tools.gnu import AutotoolsToolchain, Autotools
+
+required_conan_version = ">=1.53.0"
+
+
+class FlexConan(ConanFile):
+    name = "flex"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/westes/flex"
+    description = "Flex, the fast lexical analyzer generator"
+    topics = ("lex", "lexer", "lexical analyzer generator")
+    license = "BSD-2-Clause"
+
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+    }
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def export_sources(self):
+        export_conandata_patches(self)
+
+    def requirements(self):
+        # Flex requires M4 to be compiled. If consumer does not have M4
+        # installed, Conan will need to know that Flex requires it.
+        self.requires("m4/1.4.19")
+
+    def build_requirements(self):
+        self.tool_requires("m4/1.4.19")
+        if hasattr(self, "settings_build") and cross_building(self):
+            self.tool_requires(f"{self.name}/{self.version}")
+
+    def validate(self):
+        if self.settings.os == "Windows":
+            raise ConanInvalidConfiguration("Flex package is not compatible with Windows. "
+                                            "Consider using winflexbison instead.")
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+
+        self.settings.rm_safe("compiler.libcxx")
+        self.settings.rm_safe("compiler.cppstd")
+
+    def generate(self):
+        at = AutotoolsToolchain(self)
+        at.configure_args.extend([
+            "--disable-nls",
+            "--disable-bootstrap",
+            "HELP2MAN=/bin/true",
+            "M4=m4",
+            # https://github.com/westes/flex/issues/247
+            "ac_cv_func_malloc_0_nonnull=yes", "ac_cv_func_realloc_0_nonnull=yes",
+            # https://github.com/easybuilders/easybuild-easyconfigs/pull/5792
+            "ac_cv_func_reallocarray=no",
+        ])
+        at.generate()
+
+    def build(self):
+        apply_conandata_patches(self)
+        autotools = Autotools(self)
+        autotools.configure()
+        autotools.make()
+
+    def package(self):
+        copy(self, "COPYING", src=self.source_folder, dst=os.path.join(self.package_folder, "licenses"))
+        autotools = Autotools(self)
+        autotools.install()
+        rmdir(self, os.path.join(self.package_folder, "share"))
+        rm(self, "*.la", os.path.join(self.package_folder, "lib"))
+        fix_apple_shared_install_name(self)
+
+    def package_info(self):
+        self.cpp_info.libs = ["fl"]
+        self.cpp_info.system_libs = ["m"]
+        # Avoid CMakeDeps messing with Conan targets
+        self.cpp_info.set_property("cmake_find_mode", "none")
+
+        bindir = os.path.join(self.package_folder, "bin")
+        self.output.info("Appending PATH environment variable: {}".format(bindir))
+        self.env_info.PATH.append(bindir)
+
+        lex_path = os.path.join(bindir, "flex").replace("\\", "/")
+        self.output.info("Setting LEX environment variable: {}".format(lex_path))
+        self.env_info.LEX = lex_path

recipes/flex/all/patches/darwin-newer-versions.patch

@@ -0,0 +1,13 @@
+diff --git a/configure b/configure
+index d88c47c..827c01a 100755
+--- a/configure
++++ b/configure
+@@ -6842,7 +6842,7 @@ $as_echo "$lt_cv_ld_force_load" >&6; }
+ 	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+ 	10.[012][,.]*)
+ 	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+-	10.*)
++	*)
+ 	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+       esac
+     ;;

recipes/flex/all/test_package/CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.15)
+project(test_package LANGUAGES CXX)
+
+find_package(FLEX REQUIRED)
+flex_target(flex_scanner basic_nr.l ${PROJECT_BINARY_DIR}/basic_nr.cpp)
+
+add_executable(${PROJECT_NAME} basic_nr.cpp)
+target_include_directories(${PROJECT_NAME} PRIVATE ${FLEX_INCLUDE_DIRS})
+target_link_libraries(${PROJECT_NAME} PRIVATE ${FLEX_LIBRARIES})

recipes/flex/all/test_package/CMakeUserPresets.json

@@ -0,0 +1,9 @@
+{
+    "version": 4,
+    "vendor": {
+        "conan": {}
+    },
+    "include": [
+        "build/gcc-12-x86_64-gnu17-release/generators/CMakePresets.json"
+    ]
+}

recipes/flex/all/test_package/basic_nr.l

@@ -0,0 +1,89 @@
+/*
+ * This file is part of flex.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+%option C++ noyywrap
+
+%{
+int mylineno = 0;
+%}
+
+string	\"[^\n"]+\"
+
+ws	[ \t]+
+
+alpha	[A-Za-z]
+dig	[0-9]
+name	({alpha}|{dig}|\$)({alpha}|{dig}|\_|\.|\-|\/|\$)*
+num1	[-+]?{dig}+\.?([eE][-+]?{dig}+)?
+num2	[-+]?{dig}*\.{dig}+([eE][-+]?{dig}+)?
+number	{num1}|{num2}
+
+%%
+
+{ws}	/* skip blanks and tabs */
+
+"/*"		{
+		int c;
+
+		while((c = yyinput()) != 0)
+			{
+			if(c == '\n')
+				++mylineno;
+
+			else if(c == '*')
+				{
+				if((c = yyinput()) == '/')
+					break;
+				else
+					unput(c);
+				}
+			}
+		}
+
+{number}	std::cout << "number " << YYText() << '\n';
+
+\n		mylineno++;
+
+{name}		std::cout << "name " << YYText() << '\n';
+
+{string}	std::cout << "string " << YYText() << '\n';
+
+%%
+
+extern "C" {
+    int yylex() {return 0;}
+}
+
+#include <fstream>
+
+int main( int argc, const char *argv[]) {
+    if (argc < 2) {
+        fprintf(stderr, "Need an argument\n");
+        return 1;
+    }
+    std::ifstream ifs(argv[1]);
+	FlexLexer *lexer = new yyFlexLexer(ifs, std::cout);
+	while(lexer->yylex() != 0)
+		;
+	return 0;
+}

recipes/flex/all/test_package/basic_nr.txt

@@ -0,0 +1,6 @@
+/* this is a multi line comment
+still in the comment
+and done */
+foo = "bar"
+num = 43
+setting = false

recipes/flex/all/test_package/conanfile.py

@@ -0,0 +1,50 @@
+import os
+import re
+from io import StringIO
+
+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import CMake, cmake_layout
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeToolchain", "VirtualBuildEnv", "VirtualRunEnv", "CMakeDeps"
+    test_type = "explicit"
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def build_requirements(self):
+        self.tool_requires(self.tested_reference_str)
+
+    def layout(self):
+        cmake_layout(self)
+
+    def _assert_expected_version(self):
+
+        def tested_reference_version():
+            tokens = re.split('[@#]', self.tested_reference_str)
+            return tokens[0].split("/", 1)[1]
+
+        output = StringIO()
+        self.run("flex --version", output)
+        output_str = str(output.getvalue()) 
+        self.output.info("Installed version: {}".format(output_str))
+        expected_version = tested_reference_version()
+        self.output.info("Expected version: {}".format(expected_version))
+        assert_flex_version = "flex {}".format(expected_version)
+        assert(assert_flex_version in output_str)
+
+    def build(self):
+        # Let's check flex version installed
+        self._assert_expected_version()
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
+            txt_file = os.path.join(self.source_folder, "basic_nr.txt")
+            self.run(f"{bin_path} {txt_file}", env="conanrun")