meson: add MSI build target

It would be nice to provide a release MSI for Windows users.

Requires wixl.

Tested on Fedora, with mingw64 cross-build.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

meson.build

@@ -1,8 +1,8 @@
 project('pkgconf', 'c',
   version : '2.4.3',
   license : 'ISC',
-  meson_version : '>=0.49',
   default_options : ['c_std=c99'],
+  meson_version: '>=0.52',
 )
 
 cc = meson.get_compiler('c')
@@ -149,3 +149,41 @@ install_man('man/pkgconf-personality.5')
 install_data('pkg.m4', install_dir: 'share/aclocal')
 install_data('AUTHORS', install_dir: 'share/doc/pkgconf')
 install_data('README.md', install_dir: 'share/doc/pkgconf')
+
+if host_machine.system() == 'windows'
+  conf_data = configuration_data()
+  conf_data.set('VERSION', meson.project_version())
+  conf_data.set('EXE', pkgconf_exe.full_path())
+  conf_data.set('DLL', libpkgconf.full_path())
+  if host_machine.cpu() != 'x86_64'
+    wixl_arch = 'x86'
+  else
+    wixl_arch = 'x64'
+  endif
+  conf_data.set('WIXL_ARCH', wixl_arch)
+
+  python = find_program('python3')
+  wixl = find_program('wixl', required: false, version: '>= 0.105')
+  unoconv = find_program('unoconv', required: false)
+  msi_filename = 'pkgconf-@0@-@1@.msi'.format(wixl_arch, meson.project_version())
+
+  wxsfile = configure_file(input: 'pkgconf.wxs.in', output: 'pkgconf.wxs', configuration: conf_data)
+
+  if wixl.found() and unoconv.found()
+    licensefile = custom_target(
+      'License.rtf',
+      input: 'COPYING',
+      output: 'License.rtf',
+      command: [python, files('txt2rtf.py'), '@INPUT@', '@OUTPUT@'],
+    )
+
+    msi = custom_target(
+      msi_filename,
+      input: [wxsfile, licensefile],
+      output: msi_filename,
+      command: [wixl, '--arch', wixl_arch, '--ext', 'ui', '-o', msi_filename, wxsfile],
+    )
+
+    alias_target('msi', msi)
+  endif
+endif

pkgconf.wxs.in

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
+
+  <?define Arch = "@WIXL_ARCH@"?>
+  <?if $(var.Arch) = "x64"?>
+      <?define GLIB_ARCH = "win64"?>
+      <?define ArchString = "64-bit"?>
+      <?define ArchProgramFilesFolder = "ProgramFiles64Folder"?>
+      <?define Win64 = "yes"?>
+  <?else?>
+      <?define GLIB_ARCH = "win32"?>
+      <?define ArchString = "32-bit"?>
+      <?define ArchProgramFilesFolder = "ProgramFilesFolder"?>
+      <?define Win64 = "no"?>
+  <?endif?>
+
+
+  <Product Id="*"
+           Name="pkgconf @VERSION@ ($(var.ArchString))"
+           Language="1033"
+           Version="@VERSION@"
+           Manufacturer="pkgconf"
+           UpgradeCode="4faedad2-3f9d-45cc-89a7-3732ad2db0f7">
+
+      <Package InstallerVersion="200"
+               Compressed="yes"
+               InstallScope="perMachine" />
+
+      <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
+      <MediaTemplate EmbedCab="yes" />
+
+      <Feature Id="ProductFeature" Title="pkgconf" Level="1">
+          <ComponentGroupRef Id="ProductComponents" />
+      </Feature>
+
+      <Directory Id="TARGETDIR" Name="SourceDir">
+          <Directory Id="$(var.ArchProgramFilesFolder)">
+              <Directory Id="INSTALLFOLDER" Name="pkgconf @VERSION@" />
+          </Directory>
+      </Directory>
+
+      <ComponentGroup Id="ProductComponents" Directory="INSTALLFOLDER">
+          <Component Id="PkgconfExe" Guid="*" Win64="$(var.Win64)">
+              <File Id="PkgconfExeFile"
+                    Source="@EXE@"
+                    KeyPath="yes" />
+              <File Id="PkgconfigExeFile"
+                    Name="pkg-config.exe"
+                    Source="@EXE@"/>
+              <File Id="PkgconfDllFile"
+                    Source="@DLL@"/>
+              <Environment Id="PATH"
+                           Name="PATH"
+                           Value="[INSTALLFOLDER]"
+                           Permanent="no"
+                           Part="last"
+                           Action="set"
+                           System="yes" />
+          </Component>
+      </ComponentGroup>
+
+      <UIRef Id="WixUI_Minimal" />
+   </Product>
+</Wix>

txt2rtf.py

@@ -0,0 +1,35 @@
+def text_to_rtf(input_file: str, output_file: str) -> None:
+    with open(input_file, "r", encoding="utf-8") as file:
+        text_content = file.read()
+
+    text_content = text_content.replace("\\", "\\\\")
+    text_content = text_content.replace("{", "\\{")
+    text_content = text_content.replace("}", "\\}")
+
+    text_content = text_content.replace("\n", "\\par\n")
+
+    rtf_content = "{\\rtf1\\ansi\\ansicpg1252\\cocoartf2580\\cocoasubrtf220\n"
+    rtf_content += "{\\fonttbl\\f0\\fswiss\\fcharset0 Helvetica;}\n"
+    rtf_content += "\\vieww12000\\viewh15840\\viewkind0\n"
+    rtf_content += "\\pard\\tx720\\tx1440\\tx2160\\tx2880\\tx3600\\tx4320\\pardirnatural\\partightenfactor0\n"
+    rtf_content += "\\f0\\fs24 "
+    rtf_content += text_content
+    rtf_content += "\n}"
+
+    with open(output_file, "w", encoding="utf-8") as file:
+        file.write(rtf_content)
+
+    print(f"Conversion complete! RTF file saved as: {output_file}")
+
+
+if __name__ == "__main__":
+    import sys
+
+    if len(sys.argv) != 3:
+        print(f"Usage: python {sys.argv[0]} input.txt output.rtf")
+        sys.exit(1)
+
+    input_file = sys.argv[1]
+    output_file = sys.argv[2]
+
+    text_to_rtf(input_file, output_file)