From cd42fc5cc8dfda473643f40d359fc3d68d7906fb Mon Sep 17 00:00:00 2001
From: "John W. Parent" <45471568+johnwparent@users.noreply.github.com>
Date: Tue, 14 Mar 2023 19:46:49 -0400
Subject: Libogg and libtheora: build on windows (#35099)

Adds builders appropriate for building these packages on Windows.
It is intended that builds on other platforms are unaffected (e.g.
they build with Autotools as before on Linux).
---
 lib/spack/spack/compilers/msvc.py                  |  14 ++-
 var/spack/repos/builtin/packages/libogg/package.py |  37 +++++++-
 .../libtheora/libtheora-inc-external-ogg.patch     |  35 +++++++
 .../repos/builtin/packages/libtheora/package.py    | 102 +++++++++++++++++++--
 4 files changed, 176 insertions(+), 12 deletions(-)
 create mode 100644 var/spack/repos/builtin/packages/libtheora/libtheora-inc-external-ogg.patch

diff --git a/lib/spack/spack/compilers/msvc.py b/lib/spack/spack/compilers/msvc.py
index 7a8432ecfa..9be10b0826 100644
--- a/lib/spack/spack/compilers/msvc.py
+++ b/lib/spack/spack/compilers/msvc.py
@@ -122,7 +122,19 @@ class Msvc(Compiler):
     @property
     def cl_version(self):
         """Cl toolset version"""
-        return spack.compiler.get_compiler_version_output(self.cc)
+        return Version(
+            re.search(
+                Msvc.version_regex,
+                spack.compiler.get_compiler_version_output(self.cc, version_arg=None),
+            ).group(1)
+        )
+
+    @property
+    def vs_root(self):
+        # The MSVC install root is located at a fix level above the compiler
+        # and is referenceable idiomatically via the pattern below
+        # this should be consistent accross versions
+        return os.path.abspath(os.path.join(self.cc, "../../../../../../../.."))
 
     def setup_custom_environment(self, pkg, env):
         """Set environment variables for MSVC using the
diff --git a/var/spack/repos/builtin/packages/libogg/package.py b/var/spack/repos/builtin/packages/libogg/package.py
index c0fad6bbf3..c82794e9ba 100644
--- a/var/spack/repos/builtin/packages/libogg/package.py
+++ b/var/spack/repos/builtin/packages/libogg/package.py
@@ -3,10 +3,13 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+import os
+
+from spack.build_systems.generic import GenericBuilder
 from spack.package import *
 
 
-class Libogg(AutotoolsPackage):
+class Libogg(CMakePackage, AutotoolsPackage, Package):
     """Ogg is a multimedia container format, and the native file and stream
     format for the Xiph.org multimedia codecs."""
 
@@ -24,3 +27,35 @@ class Libogg(AutotoolsPackage):
         sha256="0f4d289aecb3d5f7329d51f1a72ab10c04c336b25481a40d6d841120721be485",
         when="@1.3.4 platform=darwin",
     )
+    build_system(
+        conditional("cmake", when="@1.3.4:"),
+        conditional("generic", when="@1.3.2 platform=windows"),
+        "autotools",
+        default="autotools",
+    )
+
+
+class GenericBuilder(GenericBuilder):
+    phases = ["build", "install"]
+
+    def is_64bit(self):
+        return "64" in self.pkg.spec.target.family
+
+    def build(self, spec, prefix):
+        if spec.satisfies("%msvc"):
+            plat_tools = self.pkg.compiler.msvc_version
+        else:
+            raise RuntimeError("Package does not support non MSVC compilers on Windows")
+        ms_build_args = ["libogg_static.vcxproj", "/p:PlatformToolset=v%s" % plat_tools]
+        msbuild(*ms_build_args)
+
+    def install(self, spec, prefix):
+        mkdirp(prefix.include.ogg)
+        mkdirp(prefix.lib)
+        mkdirp(prefix.share)
+        install(
+            os.path.join(self.pkg.stage.source_path, "include", "ogg", "*.h"), prefix.include.ogg
+        )
+        plat_prefix = "x64" if self.is_64bit() else "x86"
+        install(os.path.join(plat_prefix, "Debug", "*.lib"), prefix.lib)
+        install_tree(os.path.join(self.pkg.stage.source_path, "doc"), prefix.share)
diff --git a/var/spack/repos/builtin/packages/libtheora/libtheora-inc-external-ogg.patch b/var/spack/repos/builtin/packages/libtheora/libtheora-inc-external-ogg.patch
new file mode 100644
index 0000000000..fd88480e7c
--- /dev/null
+++ b/var/spack/repos/builtin/packages/libtheora/libtheora-inc-external-ogg.patch
@@ -0,0 +1,35 @@
+diff --git a/win32/VS2008/libogg.vsprops b/win32/VS2008/libogg.vsprops
+index 1355b50..8b3c5b8 100644
+--- a/win32/VS2008/libogg.vsprops
++++ b/win32/VS2008/libogg.vsprops
+@@ -6,11 +6,11 @@
+ 	>
+ 	<Tool
+ 		Name="VCCLCompilerTool"
+-		AdditionalIncludeDirectories="&quot;..\..\..\..\libogg-$(LIBOGG_VERSION)\include&quot;;..\..\..\..\ogg\include;..\..\..\..\..\..\..\core\ogg\libogg\include"
++		AdditionalIncludeDirectories="$(SPACK_OGG_PREFIX)\include;&quot;..\..\..\..\libogg-$(LIBOGG_VERSION)\include&quot;;..\..\..\..\ogg\include;..\..\..\..\..\..\..\core\ogg\libogg\include"
+ 	/>
+ 	<Tool
+ 		Name="VCLinkerTool"
+-		AdditionalLibraryDirectories="&quot;..\..\..\..\libogg-$(LIBOGG_VERSION)\win32\VS2008\$(PlatformName)\$(ConfigurationName)&quot;;&quot;..\..\..\..\ogg\win32\VS2008\$(PlatformName)\$(ConfigurationName)&quot;;&quot;..\..\..\..\..\..\..\core\ogg\libogg\win32\VS2008\$(PlatformName)\$(ConfigurationName)&quot;"
++		AdditionalLibraryDirectories="$(SPACK_OGG_PREFIX)\lib;&quot;..\..\..\..\libogg-$(LIBOGG_VERSION)\win32\VS2008\$(PlatformName)\$(ConfigurationName)&quot;;&quot;..\..\..\..\ogg\win32\VS2008\$(PlatformName)\$(ConfigurationName)&quot;;&quot;..\..\..\..\..\..\..\core\ogg\libogg\win32\VS2008\$(PlatformName)\$(ConfigurationName)&quot;"
+ 	/>
+ 	<UserMacro
+ 		Name="LIBOGG_VERSION"
+diff --git a/win32/VS2008/libtheora_static.sln b/win32/VS2008/libtheora_static.sln
+index 2b39635..fa40518 100644
+--- a/win32/VS2008/libtheora_static.sln
++++ b/win32/VS2008/libtheora_static.sln
+@@ -1,12 +1,8 @@
+
+ Microsoft Visual Studio Solution File, Format Version 10.00
+ # Visual Studio 2008
+-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dump_video_static", "dump_video\dump_video_static.vcproj", "{1A8CA99D-B6C7-48CB-B263-6CECDADF5FBF}"
+-EndProject
+ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libtheora_static", "libtheora\libtheora_static.vcproj", "{653F3841-3F26-49B9-AFCF-091DB4B67031}"
+ EndProject
+-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "encoder_example_static", "encoder_example\encoder_example_static.vcproj", "{AD710263-EBFA-4388-BAA9-AD73C32AFF26}"
+-EndProject
+ Global
+ 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ 		Debug|Win32 = Debug|Win32
diff --git a/var/spack/repos/builtin/packages/libtheora/package.py b/var/spack/repos/builtin/packages/libtheora/package.py
index 280d838bdd..5d3f181272 100644
--- a/var/spack/repos/builtin/packages/libtheora/package.py
+++ b/var/spack/repos/builtin/packages/libtheora/package.py
@@ -3,10 +3,16 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+import glob
+import os
+import sys
+
+from spack.build_systems.autotools import AutotoolsBuilder
+from spack.build_systems.msbuild import MSBuildBuilder
 from spack.package import *
 
 
-class Libtheora(AutotoolsPackage):
+class Libtheora(AutotoolsPackage, MSBuildPackage):
     """Theora Video Compression."""
 
     homepage = "https://www.theora.org"
@@ -17,13 +23,25 @@ class Libtheora(AutotoolsPackage):
 
     variant("doc", default=False, description="Build documentation")
 
-    depends_on("autoconf", type="build")
-    depends_on("automake", type="build")
-    depends_on("libtool", type="build")
-    depends_on("m4", type="build")
     depends_on("doxygen", when="+doc", type="build")
     depends_on("libogg")
     depends_on("libpng")
+    with when("build_system=autotools"):
+        depends_on("autoconf", type="build")
+        depends_on("automake", type="build")
+        depends_on("libtool", type="build")
+        depends_on("m4", type="build")
+
+    with when("platform=windows"):
+        variant(
+            "static",
+            default=True,
+            description="Enable static build, if false shared library is built",
+        )
+
+    build_system(
+        "msbuild", "autotools", default="autotools" if sys.platform != "win32" else "msbuild"
+    )
 
     patch("exit-prior-to-running-configure.patch", when="@1.1.1")
     patch("fix_encoding.patch", when="@1.1:")
@@ -32,15 +50,79 @@ class Libtheora(AutotoolsPackage):
         sha256="8b1f256fa6bfb4ce1355c5be1104e8cfe695c8484d8ea19db06c006880a02298",
         when="^libpng@1.6:",
     )
+    patch("libtheora-inc-external-ogg.patch", when="platform=windows")
+
 
-    def autoreconf(self, spec, prefix):
+class AutotoolsBuilder(AutotoolsBuilder):
+    def configure_args(self):
+        args = []
+        args += self.enable_or_disable("doc")
+        return args
+
+    def autoreconf(self, pkg, spec, prefix):
         sh = which("sh")
         if self.spec.satisfies("target=aarch64:"):
             sh("./autogen.sh", "prefix={0}".format(prefix), "--build=arm-linux")
         else:
             sh("./autogen.sh", "prefix={0}".format(prefix))
 
-    def configure_args(self):
-        args = []
-        args += self.enable_or_disable("doc")
-        return args
+
+class MSBuildBuilder(MSBuildBuilder):
+    def is_64bit(self):
+        return "64" in self.pkg.spec.target.family
+
+    def setup_build_environment(self, env):
+        spec = self.pkg.spec
+        env.set("SPACK_OGG_PREFIX", spec["libogg"].prefix)
+        # devenv is needed to convert ancient MSbuild project to modern
+        # msbuild project so MSBuild versions older than 2010 can build this
+        # project
+        devenv_path = os.path.join(self.pkg.compiler.vs_root, "Common7", "IDE")
+        env.prepend_path("PATH", devenv_path)
+
+    @property
+    def build_directory(self):
+        win_dir = os.path.join(super().build_directory, "win32")
+        vs_dir = "VS2008"
+        return os.path.join(win_dir, vs_dir)
+
+    @property
+    def sln_file(self):
+        if self.pkg.spec.satisfies("+static"):
+            f = "libtheora_static.sln"
+        else:
+            f = "libtheora_dynamic.sln"
+        return f
+
+    def msbuild_args(self):
+        return [self.define("Configuration", "Release"), self.sln_file]
+
+    def build(self, pkg, spec, prefix):
+        with working_dir(self.build_directory):
+            devenv = Executable("devenv")
+            devenv(self.sln_file, "/Upgrade")
+        super().build(pkg, spec, prefix)
+
+    def install(self, pkg, spec, prefix):
+        mkdirp(prefix.lib)
+        libs_to_install = glob.glob(
+            os.path.join(self.build_directory, "**", "*.lib"), recursive=True
+        )
+        if self.pkg.spec.satisfies("~static"):
+            libs_to_install.extend(
+                glob.glob(os.path.join(self.build_directory, "**", "*.dll"), recursive=True)
+            )
+        for library in libs_to_install:
+            install(library, prefix.lib)
+        rename(
+            os.path.join(prefix.lib, "libtheora_static.lib"),
+            os.path.join(prefix.lib, "theora.lib"),
+        )
+        # The encoder and decoder libs are baked into the theora lib on Windows, so we spoof them
+        # here so libtheora is detectable by CMake and pkg-config and linkable by
+        # consuming projects
+        with working_dir(prefix.lib):
+            copy("theora.lib", "theoradec.lib")
+            copy("theora.lib", "theoraenc.lib")
+        with working_dir(pkg.stage.source_path):
+            install_tree("include", prefix.include)
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