Provide three levels of install support

Namely: no, yes, and yes and ask at startup.

The install_check option is thus replaced by the can_install option. -Dinstall_check=true maps to -Dcan_install=yes_check, while -Dinstall_check=false maps to -Dcan_install=yes. -Dcan_install=no is new and is recommended for downstream packaging, where -Dinstall_check=false was historically used.

Also improve error messages about bad configuration here and there and scatter configuration code in subdirectories, where they can be closer to their areas of effect.

.github/build.sh

@@ -185,7 +185,6 @@ meson_configure+=$'\t'-Dapp_data=$APP_DATA
 meson_configure+=$'\t'-Dapp_vendor=$APP_VENDOR
 meson_configure+=$'\t'-Db_strip=false
 meson_configure+=$'\t'-Db_staticpic=false
-meson_configure+=$'\t'-Dinstall_check=true
 meson_configure+=$'\t'-Dmod_id=$MOD_ID
 case $BSH_HOST_ARCH-$BSH_HOST_PLATFORM-$BSH_HOST_LIBC-$BSH_DEBUG_RELEASE in
 x86_64-linux-gnu-debug) ;&
@@ -376,7 +375,7 @@ if [[ $BSH_HOST_PLATFORM == android ]]; then
 fi
 if [[ $PACKAGE_MODE == appimage ]]; then
 	# so far this can only happen with $BSH_HOST_PLATFORM-$BSH_HOST_LIBC == linux-gnu, but this may change later
-	meson configure -Dinstall_check=false -Dignore_updates=true -Dbuild_render=false -Dbuild_font=false
+	meson configure -Dcan_install=no -Dignore_updates=true -Dbuild_render=false -Dbuild_font=false
 	strip_target=$APP_EXE
 fi
 if [[ $BSH_BUILD_PLATFORM == windows ]]; then

meson.build

@@ -72,11 +72,7 @@ endif
 
 is_static = static_variant != 'none'
 is_debug = get_option('optimization') in [ '0', 'g' ]
-enforce_https = get_option('enforce_https')
-
-if not is_debug and not enforce_https
-	error('refusing to build a release binary with enforce_https=false')
-endif
+app_exe = get_option('app_exe')
 
 tpt_libs_static = 'none'
 if static_variant == 'prebuilt'
@@ -130,8 +126,6 @@ else
 	endif
 endif
 
-conf_data = configuration_data()
-
 x86_sse_level_str = get_option('x86_sse')
 if x86_sse_level_str == 'auto'
 	x86_sse_level = 20
@@ -322,47 +316,6 @@ else
 	ident_platform = 'UNKNOWN'
 endif
 
-install_check = get_option('install_check')
-if host_platform == 'darwin' or host_platform == 'android'
-	install_check = false
-endif
-app_exe = get_option('app_exe')
-app_id = get_option('app_id')
-mod_id = get_option('mod_id')
-is_snapshot = get_option('snapshot')
-is_beta = get_option('beta')
-is_mod = mod_id > 0
-update_server = get_option('update_server')
-
-conf_data.set('SET_WINDOW_ICON', host_platform == 'linux' ? 'true' : 'false')
-conf_data.set('X86', is_x86 ? 'true' : 'false')
-conf_data.set('BETA', is_beta ? 'true' : 'false')
-conf_data.set('INSTALL_CHECK', install_check ? 'true' : 'false')
-conf_data.set('IGNORE_UPDATES', get_option('ignore_updates') ? 'true' : 'false')
-conf_data.set('MOD_ID', mod_id)
-conf_data.set('DEBUG', is_debug ? 'true' : 'false')
-conf_data.set('SNAPSHOT', is_snapshot ? 'true' : 'false')
-conf_data.set('MOD', is_mod ? 'true' : 'false')
-conf_data.set('SNAPSHOT_ID', get_option('snapshot_id'))
-conf_data.set('SERVER', get_option('server'))
-conf_data.set('STATICSERVER', get_option('static_server'))
-conf_data.set('UPDATESERVER', update_server)
-conf_data.set('USE_UPDATESERVER', update_server != '' ? 'true' : 'false')
-conf_data.set('IDENT_PLATFORM', ident_platform)
-conf_data.set('IDENT', '@0@-@1@-@2@'.format(host_arch, host_platform, host_libc).to_upper())
-conf_data.set('ENFORCE_HTTPS', enforce_https ? 'true' : 'false')
-conf_data.set('ALLOW_FAKE_NEWER_VERSION', (is_snapshot or is_beta or is_debug or is_mod) ? 'true' : 'false')
-conf_data.set('APPNAME', get_option('app_name'))
-conf_data.set('APPCOMMENT', get_option('app_comment'))
-conf_data.set('APPEXE', app_exe)
-conf_data.set('APPID', app_id)
-conf_data.set('APPDATA', get_option('app_data'))
-conf_data.set('APPVENDOR', get_option('app_vendor'))
-conf_data.set('LUACONSOLE', lua_variant != 'none' ? 'true' : 'false')
-conf_data.set('GRAVFFT', enable_gravfft ? 'true' : 'false')
-conf_data.set('NOHTTP', not enable_http ? 'true' : 'false')
-conf_data.set('PATH_SEP_CHAR', host_platform == 'windows' ? '\\\\' : '/')
-
 data_files = []
 
 subdir('src')

meson_options.txt

@@ -18,10 +18,11 @@ option(
 	description: 'Don\'t show notifications about available updates'
 )
 option(
-	'install_check',
-	type: 'boolean',
-	value: false,
-	description: 'Do install check on startup'
+	'can_install',
+	type: 'combo',
+	choices: [ 'no', 'yes', 'yes_check', 'auto' ],
+	value: 'auto',
+	description: 'Disable (\'no\') or enable (\'yes\') setting up file and URL associations, or even offer to do it at startup (\'yes_check\')'
 )
 option(
 	'http',

src/Config.template.h

@@ -11,6 +11,7 @@ constexpr bool NOHTTP                   = @NOHTTP@;
 constexpr bool LUACONSOLE               = @LUACONSOLE@;
 constexpr bool ALLOW_FAKE_NEWER_VERSION = @ALLOW_FAKE_NEWER_VERSION@;
 constexpr bool USE_UPDATESERVER         = @USE_UPDATESERVER@;
+constexpr bool CAN_INSTALL              = @CAN_INSTALL@;
 constexpr bool INSTALL_CHECK            = @INSTALL_CHECK@;
 constexpr bool IGNORE_UPDATES           = @IGNORE_UPDATES@;
 constexpr bool ENFORCE_HTTPS            = @ENFORCE_HTTPS@;

src/client/http/meson.build

@@ -13,3 +13,4 @@ if enable_http
 else
 	client_files += files('RequestManagerNoHttp.cpp')
 endif
+conf_data.set('NOHTTP', not enable_http ? 'true' : 'false')

src/common/Platform.cpp

@@ -106,9 +106,4 @@ bool WriteFile(const std::vector<char> &fileData, ByteString filename)
 	}
 	return true;
 }
-
-bool CanInstall()
-{
-	return INSTALL_CHECK;
-}
 }

src/common/Platform.h

@@ -46,7 +46,6 @@ namespace Platform
 
 	bool CanUpdate();
 
-	bool CanInstall();
 	bool Install();
 
 	bool ChangeDir(ByteString toDir);

src/common/PlatformAndroid.cpp

@@ -24,9 +24,4 @@ bool CanUpdate()
 {
 	return false;
 }
-
-bool Install()
-{
-	return false;
-}
 }

src/common/PlatformDarwin.cpp

@@ -48,9 +48,4 @@ bool CanUpdate()
 {
 	return false;
 }
-
-bool Install()
-{
-	return false;
-}
 }

src/common/PlatformNull.cpp

@@ -11,9 +11,4 @@ bool CanUpdate()
 {
 	return false;
 }
-
-bool Install()
-{
-	return false;
-}
 }

src/common/meson.build

@@ -4,19 +4,57 @@ common_files += files(
 	'tpt-rand.cpp',
 	'tpt-thread-local.cpp',
 )
+
+can_install_enforce_no = false
+set_window_icon = false
+path_sep_char = '/'
 if host_platform == 'windows'
-	common_files += files('PlatformWindows.cpp')
+	path_sep_char = '\\\\'
+	common_files += files(
+		'PlatformWindows.cpp',
+	)
 elif host_platform == 'darwin'
-	common_files += files('PlatformDarwin.cpp')
-	common_files += files('PlatformPosix.cpp')
+	can_install_enforce_no = true
+	common_files += files(
+		'PlatformDarwin.cpp',
+		'PlatformPosix.cpp',
+	)
 elif host_platform == 'android'
-	common_files += files('PlatformAndroid.cpp')
-	common_files += files('PlatformPosix.cpp')
+	can_install_enforce_no = true
+	common_files += files(
+		'PlatformAndroid.cpp',
+		'PlatformPosix.cpp',
+	)
 elif host_platform == 'linux'
 	# TODO: again, this is more like "posix" than "linux"
-	common_files += files('PlatformLinux.cpp')
-	common_files += files('PlatformPosix.cpp')
+	set_window_icon = true
+	common_files += files(
+		'PlatformLinux.cpp',
+		'PlatformPosix.cpp',
+	)
 else
-	common_files += files('PlatformNull.cpp')
-	common_files += files('PlatformPosix.cpp')
+	can_install_enforce_no = true
+	common_files += files(
+		'PlatformNull.cpp',
+		'PlatformPosix.cpp',
+	)
 endif
+conf_data.set('SET_WINDOW_ICON', set_window_icon ? 'true' : 'false')
+conf_data.set('PATH_SEP_CHAR', path_sep_char)
+
+can_install = get_option('can_install')
+if can_install == 'auto'
+	can_install = 'yes_check'
+	if is_debug
+		can_install = 'yes'
+	endif
+	if can_install_enforce_no
+		can_install = 'no'
+	endif
+endif
+if can_install != 'no' and can_install_enforce_no
+	error('cannot provide install support, configure with -Dcan_install=no to fix this error')
+endif
+conf_data.set('CAN_INSTALL', can_install != 'no' ? 'true' : 'false')
+conf_data.set('INSTALL_CHECK', can_install == 'yes_check' ? 'true' : 'false')
+

src/gui/game/GameController.cpp

@@ -252,7 +252,7 @@ void GameController::PlaceSave(ui::Point position)
 
 void GameController::Install()
 {
-	if (Platform::CanInstall())
+	if constexpr (CAN_INSTALL)
 	{
 		new ConfirmPrompt("Install " + String(APPNAME), "Do you wish to install " + String(APPNAME) + " on this computer?\nThis allows you to open save files and saves directly from the website.", { [] {
 			if (Platform::Install())

src/lua/meson.build

@@ -25,6 +25,7 @@ if enable_http
 else
 	luaconsole_files += files('LuaSocketTCPNoHttp.cpp')
 endif
+conf_data.set('LUACONSOLE', lua_variant != 'none' ? 'true' : 'false')
 
 subdir('luascripts')
 

src/meson.build

@@ -1,8 +1,40 @@
-configure_file(
-	input: 'Config.template.h',
-	output: 'Config.h',
-	configuration: conf_data
-)
+conf_data = configuration_data()
+
+app_id = get_option('app_id')
+mod_id = get_option('mod_id')
+is_snapshot = get_option('snapshot')
+is_beta = get_option('beta')
+is_mod = mod_id > 0
+conf_data.set('X86', is_x86 ? 'true' : 'false')
+conf_data.set('BETA', is_beta ? 'true' : 'false')
+conf_data.set('MOD_ID', mod_id)
+conf_data.set('DEBUG', is_debug ? 'true' : 'false')
+conf_data.set('MOD', is_mod ? 'true' : 'false')
+conf_data.set('SNAPSHOT', is_snapshot ? 'true' : 'false')
+conf_data.set('SNAPSHOT_ID', get_option('snapshot_id'))
+conf_data.set('ALLOW_FAKE_NEWER_VERSION', (is_snapshot or is_beta or is_debug or is_mod) ? 'true' : 'false')
+conf_data.set('IDENT_PLATFORM', ident_platform)
+conf_data.set('IDENT', '@0@-@1@-@2@'.format(host_arch, host_platform, host_libc).to_upper())
+
+update_server = get_option('update_server')
+conf_data.set('UPDATESERVER', update_server)
+conf_data.set('USE_UPDATESERVER', update_server != '' ? 'true' : 'false')
+
+enforce_https = get_option('enforce_https')
+if not is_debug and not enforce_https
+	error('refusing to build a release binary without enforcing HTTPS, configure with -Denforce_https=true to fix this error')
+endif
+conf_data.set('ENFORCE_HTTPS', enforce_https ? 'true' : 'false')
+
+conf_data.set('IGNORE_UPDATES', get_option('ignore_updates') ? 'true' : 'false')
+conf_data.set('SERVER', get_option('server'))
+conf_data.set('STATICSERVER', get_option('static_server'))
+conf_data.set('APPNAME', get_option('app_name'))
+conf_data.set('APPCOMMENT', get_option('app_comment'))
+conf_data.set('APPEXE', app_exe)
+conf_data.set('APPID', app_id)
+conf_data.set('APPDATA', get_option('app_data'))
+conf_data.set('APPVENDOR', get_option('app_vendor'))
 
 powder_files = files(
 	'SDLCompat.cpp',
@@ -43,10 +75,12 @@ subdir('graphics')
 subdir('gui')
 if lua_variant != 'none'
 	subdir('lua')
+	conf_data.set('LUACONSOLE', 'true')
 else
 	powder_files += files(
 		'lua/PlainCommandInterface.cpp',
 	)
+	conf_data.set('LUACONSOLE', 'false')
 endif
 subdir('prefs')
 subdir('resampler')
@@ -80,3 +114,9 @@ configure_file(
 	output: 'ToolNumbers.h',
 	configuration: tools_conf_data
 )
+
+configure_file(
+	input: 'Config.template.h',
+	output: 'Config.h',
+	configuration: conf_data
+)

src/simulation/meson.build

@@ -31,4 +31,5 @@ if enable_gravfft
 else
 	powder_files += files('PlainGravity.cpp')
 endif
+conf_data.set('GRAVFFT', enable_gravfft ? 'true' : 'false')
 render_files += files('PlainGravity.cpp')