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https://github.com/godotengine/godot
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OS: Add unset_environment
, better validate input
Instead of returning an undocumented boolean error code, we do the validation checks that should ensure a successful result. Based on: - https://linux.die.net/man/3/setenv - https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setenvironmentvariable
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04a39ecd84
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@ -322,8 +322,12 @@ String OS::get_environment(const String &p_var) const {
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return ::OS::get_singleton()->get_environment(p_var);
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}
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bool OS::set_environment(const String &p_var, const String &p_value) const {
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return ::OS::get_singleton()->set_environment(p_var, p_value);
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void OS::set_environment(const String &p_var, const String &p_value) const {
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::OS::get_singleton()->set_environment(p_var, p_value);
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}
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void OS::unset_environment(const String &p_var) const {
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::OS::get_singleton()->unset_environment(p_var);
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}
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String OS::get_name() const {
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@ -548,9 +552,10 @@ void OS::_bind_methods() {
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ClassDB::bind_method(D_METHOD("is_process_running", "pid"), &OS::is_process_running);
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ClassDB::bind_method(D_METHOD("get_process_id"), &OS::get_process_id);
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ClassDB::bind_method(D_METHOD("has_environment", "variable"), &OS::has_environment);
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ClassDB::bind_method(D_METHOD("get_environment", "variable"), &OS::get_environment);
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ClassDB::bind_method(D_METHOD("set_environment", "variable", "value"), &OS::set_environment);
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ClassDB::bind_method(D_METHOD("has_environment", "variable"), &OS::has_environment);
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ClassDB::bind_method(D_METHOD("unset_environment", "variable"), &OS::unset_environment);
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ClassDB::bind_method(D_METHOD("get_name"), &OS::get_name);
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ClassDB::bind_method(D_METHOD("get_distribution_name"), &OS::get_distribution_name);
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@ -162,7 +162,8 @@ public:
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bool has_environment(const String &p_var) const;
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String get_environment(const String &p_var) const;
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bool set_environment(const String &p_var, const String &p_value) const;
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void set_environment(const String &p_var, const String &p_value) const;
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void unset_environment(const String &p_var) const;
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String get_name() const;
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String get_distribution_name() const;
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@ -167,7 +167,8 @@ public:
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virtual bool has_environment(const String &p_var) const = 0;
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virtual String get_environment(const String &p_var) const = 0;
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virtual bool set_environment(const String &p_var, const String &p_value) const = 0;
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virtual void set_environment(const String &p_var, const String &p_value) const = 0;
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virtual void unset_environment(const String &p_var) const = 0;
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virtual String get_name() const = 0;
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virtual String get_distribution_name() const = 0;
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@ -592,12 +592,12 @@
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</description>
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</method>
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<method name="set_environment" qualifiers="const">
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<return type="bool" />
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<return type="void" />
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<param index="0" name="variable" type="String" />
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<param index="1" name="value" type="String" />
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<description>
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Sets the value of the environment variable [param variable] to [param value]. The environment variable will be set for the Godot process and any process executed with [method execute] after running [method set_environment]. The environment variable will [i]not[/i] persist to processes run after the Godot process was terminated.
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[b]Note:[/b] Double-check the casing of [param variable]. Environment variable names are case-sensitive on all platforms except Windows.
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[b]Note:[/b] Environment variable names are case-sensitive on all platforms except Windows. The [param variable] name cannot be empty or include the [code]=[/code] character. On Windows, there is a 32767 characters limit for the combined length of [param variable], [param value], and the [code]=[/code] and null terminator characters that will be registered in the environment block.
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</description>
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</method>
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<method name="set_restart_on_exit">
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@ -637,6 +637,14 @@
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[b]Note:[/b] This method is implemented on Android, iOS, Web, Linux, macOS and Windows.
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</description>
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</method>
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<method name="unset_environment" qualifiers="const">
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<return type="void" />
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<param index="0" name="variable" type="String" />
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<description>
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Removes the environment [param variable] from the current environment, if it exists. The environment variable will be removed for the Godot process and any process executed with [method execute] after running [method unset_environment]. The removal of the environment variable will [i]not[/i] persist to processes run after the Godot process was terminated.
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[b]Note:[/b] Environment variable names are case-sensitive on all platforms except Windows. The [param variable] name cannot be empty or include the [code]=[/code] character.
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</description>
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</method>
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</methods>
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<members>
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<member name="low_processor_usage_mode" type="bool" setter="set_low_processor_usage_mode" getter="is_in_low_processor_usage_mode" default="false">
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@ -411,10 +411,6 @@ bool OS_Unix::is_process_running(const ProcessID &p_pid) const {
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return true;
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}
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bool OS_Unix::has_environment(const String &p_var) const {
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return getenv(p_var.utf8().get_data()) != nullptr;
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}
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String OS_Unix::get_locale() const {
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if (!has_environment("LANG")) {
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return "en";
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@ -487,6 +483,10 @@ Error OS_Unix::set_cwd(const String &p_cwd) {
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return OK;
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}
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bool OS_Unix::has_environment(const String &p_var) const {
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return getenv(p_var.utf8().get_data()) != nullptr;
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}
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String OS_Unix::get_environment(const String &p_var) const {
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if (getenv(p_var.utf8().get_data())) {
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return getenv(p_var.utf8().get_data());
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@ -494,8 +494,15 @@ String OS_Unix::get_environment(const String &p_var) const {
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return "";
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}
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bool OS_Unix::set_environment(const String &p_var, const String &p_value) const {
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return setenv(p_var.utf8().get_data(), p_value.utf8().get_data(), /* overwrite: */ true) == 0;
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void OS_Unix::set_environment(const String &p_var, const String &p_value) const {
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ERR_FAIL_COND_MSG(p_var.is_empty() || p_var.contains("="), vformat("Invalid environment variable name '%s', cannot be empty or include '='.", p_var));
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int err = setenv(p_var.utf8().get_data(), p_value.utf8().get_data(), /* overwrite: */ 1);
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ERR_FAIL_COND_MSG(err != 0, vformat("Failed setting environment variable '%s', the system is out of memory.", p_var));
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}
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void OS_Unix::unset_environment(const String &p_var) const {
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ERR_FAIL_COND_MSG(p_var.is_empty() || p_var.contains("="), vformat("Invalid environment variable name '%s', cannot be empty or include '='.", p_var));
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unsetenv(p_var.utf8().get_data());
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}
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String OS_Unix::get_user_data_dir() const {
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@ -81,7 +81,9 @@ public:
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virtual bool has_environment(const String &p_var) const override;
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virtual String get_environment(const String &p_var) const override;
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virtual bool set_environment(const String &p_var, const String &p_value) const override;
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virtual void set_environment(const String &p_var, const String &p_value) const override;
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virtual void unset_environment(const String &p_var) const override;
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virtual String get_locale() const override;
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virtual void initialize_debugging() override;
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@ -1166,8 +1166,17 @@ String OS_Windows::get_environment(const String &p_var) const {
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return "";
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}
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bool OS_Windows::set_environment(const String &p_var, const String &p_value) const {
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return (bool)SetEnvironmentVariableW((LPCWSTR)(p_var.utf16().get_data()), (LPCWSTR)(p_value.utf16().get_data()));
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void OS_Windows::set_environment(const String &p_var, const String &p_value) const {
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ERR_FAIL_COND_MSG(p_var.is_empty() || p_var.contains("="), vformat("Invalid environment variable name '%s', cannot be empty or include '='.", p_var));
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Char16String var = p_var.utf16();
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Char16String value = p_value.utf16();
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ERR_FAIL_COND_MSG(var.length() + value.length() + 2 > 32767, vformat("Invalid definition for environment variable '%s', cannot exceed 32767 characters.", p_var));
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SetEnvironmentVariableW((LPCWSTR)(var.get_data()), (LPCWSTR)(value.get_data()));
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}
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void OS_Windows::unset_environment(const String &p_var) const {
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ERR_FAIL_COND_MSG(p_var.is_empty() || p_var.contains("="), vformat("Invalid environment variable name '%s', cannot be empty or include '='.", p_var));
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SetEnvironmentVariableW((LPCWSTR)(p_var.utf16().get_data()), nullptr); // Null to delete.
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}
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String OS_Windows::get_stdin_string() {
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@ -186,7 +186,8 @@ public:
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virtual bool has_environment(const String &p_var) const override;
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virtual String get_environment(const String &p_var) const override;
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virtual bool set_environment(const String &p_var, const String &p_value) const override;
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virtual void set_environment(const String &p_var, const String &p_value) const override;
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virtual void unset_environment(const String &p_var) const override;
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virtual Vector<String> get_system_fonts() const override;
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virtual String get_system_font_path(const String &p_font_name, int p_weight = 400, int p_stretch = 100, bool p_italic = false) const override;
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