gecko-dev/servo/components/config/opts.rs

959 строки
38 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! Configuration options for a single run of the servo application. Created
//! from command line arguments.
use euclid::TypedSize2D;
use getopts::Options;
use num_cpus;
use prefs::{self, PrefValue, PREFS};
use resource_files::set_resources_path;
use servo_geometry::DeviceIndependentPixel;
use servo_url::ServoUrl;
use std::borrow::Cow;
use std::cmp;
use std::default::Default;
use std::env;
use std::fs::{self, File};
use std::io::{self, Read, Write};
use std::path::{Path, PathBuf};
use std::process;
use std::sync::atomic::{AtomicBool, ATOMIC_BOOL_INIT, Ordering};
use url::{self, Url};
/// Global flags for Servo, currently set on the command line.
#[derive(Clone, Deserialize, Serialize)]
pub struct Opts {
pub is_running_problem_test: bool,
/// The initial URL to load.
pub url: Option<ServoUrl>,
/// The maximum size of each tile in pixels (`-s`).
pub tile_size: usize,
/// The ratio of device pixels per px at the default scale. If unspecified, will use the
/// platform default setting.
pub device_pixels_per_px: Option<f32>,
/// `None` to disable the time profiler or `Some` to enable it with:
///
/// - an interval in seconds to cause it to produce output on that interval.
/// (`i.e. -p 5`).
/// - a file path to write profiling info to a TSV file upon Servo's termination.
/// (`i.e. -p out.tsv`).
/// - an InfluxDB hostname to store profiling info upon Servo's termination.
/// (`i.e. -p http://localhost:8086`)
pub time_profiling: Option<OutputOptions>,
/// When the profiler is enabled, this is an optional path to dump a self-contained HTML file
/// visualizing the traces as a timeline.
pub time_profiler_trace_path: Option<String>,
/// `None` to disable the memory profiler or `Some` with an interval in seconds to enable it
/// and cause it to produce output on that interval (`-m`).
pub mem_profiler_period: Option<f64>,
pub nonincremental_layout: bool,
/// Where to load userscripts from, if any. An empty string will load from
/// the resources/user-agent-js directory, and if the option isn't passed userscripts
/// won't be loaded
pub userscripts: Option<String>,
pub user_stylesheets: Vec<(Vec<u8>, ServoUrl)>,
pub output_file: Option<String>,
/// Replace unpaires surrogates in DOM strings with U+FFFD.
/// See <https://github.com/servo/servo/issues/6564>
pub replace_surrogates: bool,
/// Log GC passes and their durations.
pub gc_profile: bool,
/// Load web fonts synchronously to avoid non-deterministic network-driven reflows.
pub load_webfonts_synchronously: bool,
pub headless: bool,
pub hard_fail: bool,
/// True if we should bubble intrinsic widths sequentially (`-b`). If this is true, then
/// intrinsic widths are computed as a separate pass instead of during flow construction. You
/// may wish to turn this flag on in order to benchmark style recalculation against other
/// browser engines.
pub bubble_inline_sizes_separately: bool,
/// True if we should show borders on all fragments for debugging purposes
/// (`--show-debug-fragment-borders`).
pub show_debug_fragment_borders: bool,
/// True if we should paint borders around flows based on which thread painted them.
pub show_debug_parallel_layout: bool,
/// If set with --disable-text-aa, disable antialiasing on fonts. This is primarily useful for reftests
/// where pixel perfect results are required when using fonts such as the Ahem
/// font for layout tests.
pub enable_text_antialiasing: bool,
/// If set with --disable-subpixel, use subpixel antialiasing for glyphs. In the future
/// this will likely become the default, but for now it's opt-in while we work
/// out any bugs and improve the implementation.
pub enable_subpixel_text_antialiasing: bool,
/// If set with --disable-canvas-aa, disable antialiasing on the HTML canvas element.
/// Like --disable-text-aa, this is useful for reftests where pixel perfect results are required.
pub enable_canvas_antialiasing: bool,
/// True if each step of layout is traced to an external JSON file
/// for debugging purposes. Settings this implies sequential layout
/// and paint.
pub trace_layout: bool,
/// Periodically print out on which events script threads spend their processing time.
pub profile_script_events: bool,
/// Enable all heartbeats for profiling.
pub profile_heartbeats: bool,
/// `None` to disable debugger or `Some` with a port number to start a server to listen to
/// remote Firefox debugger connections.
pub debugger_port: Option<u16>,
/// `None` to disable devtools or `Some` with a port number to start a server to listen to
/// remote Firefox devtools connections.
pub devtools_port: Option<u16>,
/// `None` to disable WebDriver or `Some` with a port number to start a server to listen to
/// remote WebDriver commands.
pub webdriver_port: Option<u16>,
/// The initial requested size of the window.
pub initial_window_size: TypedSize2D<u32, DeviceIndependentPixel>,
/// An optional string allowing the user agent to be set for testing.
pub user_agent: Cow<'static, str>,
/// Whether we're running in multiprocess mode.
pub multiprocess: bool,
/// Whether we're running inside the sandbox.
pub sandbox: bool,
/// Probability of randomly closing a pipeline,
/// used for testing the hardening of the constellation.
pub random_pipeline_closure_probability: Option<f32>,
/// The seed for the RNG used to randomly close pipelines,
/// used for testing the hardening of the constellation.
pub random_pipeline_closure_seed: Option<usize>,
/// Dumps the DOM after restyle.
pub dump_style_tree: bool,
/// Dumps the rule tree.
pub dump_rule_tree: bool,
/// Dumps the flow tree after a layout.
pub dump_flow_tree: bool,
/// Dumps the display list after a layout.
pub dump_display_list: bool,
/// Dumps the display list in JSON form after a layout.
pub dump_display_list_json: bool,
/// Emits notifications when there is a relayout.
pub relayout_event: bool,
/// Whether Style Sharing Cache is used
pub disable_share_style_cache: bool,
/// Whether to show in stdout style sharing cache stats after a restyle.
pub style_sharing_stats: bool,
/// Translate mouse input into touch events.
pub convert_mouse_to_touch: bool,
/// True to exit after the page load (`-x`).
pub exit_after_load: bool,
/// Do not use native titlebar
pub no_native_titlebar: bool,
/// Enable vsync in the compositor
pub enable_vsync: bool,
/// True to show webrender profiling stats on screen.
pub webrender_stats: bool,
/// True to show webrender debug on screen.
pub webrender_debug: bool,
/// True if webrender recording should be enabled.
pub webrender_record: bool,
/// True if webrender is allowed to batch draw calls as instances.
pub webrender_batch: bool,
/// True to compile all webrender shaders at init time. This is mostly
/// useful when modifying the shaders, to ensure they all compile
/// after each change is made.
pub precache_shaders: bool,
/// True if WebRender should use multisample antialiasing.
pub use_msaa: bool,
/// Directory for a default config directory
pub config_dir: Option<PathBuf>,
// don't skip any backtraces on panic
pub full_backtraces: bool,
/// True to use OS native signposting facilities. This makes profiling events (script activity,
/// reflow, compositing, etc.) appear in Instruments.app on macOS.
pub signpost: bool,
/// Print the version and exit.
pub is_printing_version: bool,
/// Path to SSL certificates.
pub certificate_path: Option<String>,
/// Unminify Javascript.
pub unminify_js: bool,
/// Print Progressive Web Metrics to console.
pub print_pwm: bool,
}
fn print_usage(app: &str, opts: &Options) {
let message = format!("Usage: {} [ options ... ] [URL]\n\twhere options include", app);
println!("{}", opts.usage(&message));
}
/// Debug options for Servo, currently set on the command line with -Z
#[derive(Default)]
pub struct DebugOptions {
/// List all the debug options.
pub help: bool,
/// Bubble intrinsic widths separately like other engines.
pub bubble_widths: bool,
/// Disable antialiasing of rendered text.
pub disable_text_aa: bool,
/// Disable subpixel antialiasing of rendered text.
pub disable_subpixel_aa: bool,
/// Disable antialiasing of rendered text on the HTML canvas element.
pub disable_canvas_aa: bool,
/// Print the DOM after each restyle.
pub dump_style_tree: bool,
/// Dumps the rule tree.
pub dump_rule_tree: bool,
/// Print the flow tree after each layout.
pub dump_flow_tree: bool,
/// Print the display list after each layout.
pub dump_display_list: bool,
/// Print the display list in JSON form.
pub dump_display_list_json: bool,
/// Print notifications when there is a relayout.
pub relayout_event: bool,
/// Profile which events script threads spend their time on.
pub profile_script_events: bool,
/// Enable all heartbeats for profiling.
pub profile_heartbeats: bool,
/// Paint borders along fragment boundaries.
pub show_fragment_borders: bool,
/// Mark which thread laid each flow out with colors.
pub show_parallel_layout: bool,
/// Write layout trace to an external file for debugging.
pub trace_layout: bool,
/// Disable the style sharing cache.
pub disable_share_style_cache: bool,
/// Whether to show in stdout style sharing cache stats after a restyle.
pub style_sharing_stats: bool,
/// Translate mouse input into touch events.
pub convert_mouse_to_touch: bool,
/// Replace unpaires surrogates in DOM strings with U+FFFD.
/// See <https://github.com/servo/servo/issues/6564>
pub replace_surrogates: bool,
/// Log GC passes and their durations.
pub gc_profile: bool,
/// Load web fonts synchronously to avoid non-deterministic network-driven reflows.
pub load_webfonts_synchronously: bool,
/// Disable vsync in the compositor
pub disable_vsync: bool,
/// Show webrender profiling stats on screen.
pub webrender_stats: bool,
/// Show webrender debug on screen.
pub webrender_debug: bool,
/// Enable webrender recording.
pub webrender_record: bool,
/// Enable webrender instanced draw call batching.
pub webrender_disable_batch: bool,
/// Use multisample antialiasing in WebRender.
pub use_msaa: bool,
// don't skip any backtraces on panic
pub full_backtraces: bool,
/// True to compile all webrender shaders at init time. This is mostly
/// useful when modifying the shaders, to ensure they all compile
/// after each change is made.
pub precache_shaders: bool,
/// True to use OS native signposting facilities. This makes profiling events (script activity,
/// reflow, compositing, etc.) appear in Instruments.app on macOS.
pub signpost: bool,
}
impl DebugOptions {
pub fn extend(&mut self, debug_string: String) -> Result<(), String> {
for option in debug_string.split(',') {
match option {
"help" => self.help = true,
"bubble-widths" => self.bubble_widths = true,
"disable-text-aa" => self.disable_text_aa = true,
"disable-subpixel-aa" => self.disable_subpixel_aa = true,
"disable-canvas-aa" => self.disable_text_aa = true,
"dump-style-tree" => self.dump_style_tree = true,
"dump-rule-tree" => self.dump_rule_tree = true,
"dump-flow-tree" => self.dump_flow_tree = true,
"dump-display-list" => self.dump_display_list = true,
"dump-display-list-json" => self.dump_display_list_json = true,
"relayout-event" => self.relayout_event = true,
"profile-script-events" => self.profile_script_events = true,
"profile-heartbeats" => self.profile_heartbeats = true,
"show-fragment-borders" => self.show_fragment_borders = true,
"show-parallel-layout" => self.show_parallel_layout = true,
"trace-layout" => self.trace_layout = true,
"disable-share-style-cache" => self.disable_share_style_cache = true,
"style-sharing-stats" => self.style_sharing_stats = true,
"convert-mouse-to-touch" => self.convert_mouse_to_touch = true,
"replace-surrogates" => self.replace_surrogates = true,
"gc-profile" => self.gc_profile = true,
"load-webfonts-synchronously" => self.load_webfonts_synchronously = true,
"disable-vsync" => self.disable_vsync = true,
"wr-stats" => self.webrender_stats = true,
"wr-debug" => self.webrender_debug = true,
"wr-record" => self.webrender_record = true,
"wr-no-batch" => self.webrender_disable_batch = true,
"msaa" => self.use_msaa = true,
"full-backtraces" => self.full_backtraces = true,
"precache-shaders" => self.precache_shaders = true,
"signpost" => self.signpost = true,
"" => {},
_ => return Err(String::from(option)),
};
};
Ok(())
}
}
fn print_debug_usage(app: &str) -> ! {
fn print_option(name: &str, description: &str) {
println!("\t{:<35} {}", name, description);
}
println!("Usage: {} debug option,[options,...]\n\twhere options include\n\nOptions:", app);
print_option("bubble-widths", "Bubble intrinsic widths separately like other engines.");
print_option("disable-text-aa", "Disable antialiasing of rendered text.");
print_option("disable-canvas-aa", "Disable antialiasing on the HTML canvas element.");
print_option("dump-style-tree", "Print the DOM with computed styles after each restyle.");
print_option("dump-flow-tree", "Print the flow tree after each layout.");
print_option("dump-display-list", "Print the display list after each layout.");
print_option("dump-display-list-json", "Print the display list in JSON form.");
print_option("relayout-event", "Print notifications when there is a relayout.");
print_option("profile-script-events", "Enable profiling of script-related events.");
print_option("profile-heartbeats", "Enable heartbeats for all thread categories.");
print_option("show-fragment-borders", "Paint borders along fragment boundaries.");
print_option("show-parallel-layout", "Mark which thread laid each flow out with colors.");
print_option("trace-layout", "Write layout trace to an external file for debugging.");
print_option("disable-share-style-cache",
"Disable the style sharing cache.");
print_option("parallel-display-list-building", "Build display lists in parallel.");
print_option("convert-mouse-to-touch", "Send touch events instead of mouse events");
print_option("replace-surrogates", "Replace unpaires surrogates in DOM strings with U+FFFD. \
See https://github.com/servo/servo/issues/6564");
print_option("gc-profile", "Log GC passes and their durations.");
print_option("load-webfonts-synchronously",
"Load web fonts synchronously to avoid non-deterministic network-driven reflows");
print_option("disable-vsync",
"Disable vsync mode in the compositor to allow profiling at more than monitor refresh rate");
print_option("wr-stats", "Show WebRender profiler on screen.");
print_option("msaa", "Use multisample antialiasing in WebRender.");
print_option("full-backtraces", "Print full backtraces for all errors");
print_option("wr-debug", "Display webrender tile borders.");
print_option("wr-no-batch", "Disable webrender instanced batching.");
print_option("precache-shaders", "Compile all shaders during init.");
print_option("signpost", "Emit native OS signposts for profile events (currently macOS only)");
println!("");
process::exit(0)
}
#[derive(Clone, Deserialize, Serialize)]
pub enum OutputOptions {
/// Database connection config (hostname, name, user, pass)
DB(ServoUrl, Option<String>, Option<String>, Option<String>),
FileName(String),
Stdout(f64),
}
fn args_fail(msg: &str) -> ! {
writeln!(io::stderr(), "{}", msg).unwrap();
process::exit(1)
}
static MULTIPROCESS: AtomicBool = ATOMIC_BOOL_INIT;
#[inline]
pub fn multiprocess() -> bool {
MULTIPROCESS.load(Ordering::Relaxed)
}
enum UserAgent {
Desktop,
Android,
#[allow(non_camel_case_types)]
iOS
}
fn default_user_agent_string(agent: UserAgent) -> &'static str {
#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
const DESKTOP_UA_STRING: &'static str =
"Mozilla/5.0 (X11; Linux x86_64; rv:55.0) Servo/1.0 Firefox/55.0";
#[cfg(all(target_os = "linux", not(target_arch = "x86_64")))]
const DESKTOP_UA_STRING: &'static str =
"Mozilla/5.0 (X11; Linux i686; rv:55.0) Servo/1.0 Firefox/55.0";
#[cfg(all(target_os = "windows", target_arch = "x86_64"))]
const DESKTOP_UA_STRING: &'static str =
"Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:55.0) Servo/1.0 Firefox/55.0";
#[cfg(all(target_os = "windows", not(target_arch = "x86_64")))]
const DESKTOP_UA_STRING: &'static str =
"Mozilla/5.0 (Windows NT 6.1; rv:55.0) Servo/1.0 Firefox/55.0";
#[cfg(not(any(target_os = "linux", target_os = "windows")))]
// Neither Linux nor Windows, so maybe OS X, and if not then OS X is an okay fallback.
const DESKTOP_UA_STRING: &'static str =
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:55.0) Servo/1.0 Firefox/55.0";
match agent {
UserAgent::Desktop => {
DESKTOP_UA_STRING
}
UserAgent::Android => {
"Mozilla/5.0 (Android; Mobile; rv:55.0) Servo/1.0 Firefox/55.0"
}
UserAgent::iOS => {
"Mozilla/5.0 (iPhone; CPU iPhone OS 8_3 like Mac OS X; rv:55.0) Servo/1.0 Firefox/55.0"
}
}
}
#[cfg(target_os = "android")]
const DEFAULT_USER_AGENT: UserAgent = UserAgent::Android;
#[cfg(target_os = "ios")]
const DEFAULT_USER_AGENT: UserAgent = UserAgent::iOS;
#[cfg(not(any(target_os = "android", target_os = "ios")))]
const DEFAULT_USER_AGENT: UserAgent = UserAgent::Desktop;
pub fn default_opts() -> Opts {
Opts {
is_running_problem_test: false,
url: None,
tile_size: 512,
device_pixels_per_px: None,
time_profiling: None,
time_profiler_trace_path: None,
mem_profiler_period: None,
nonincremental_layout: false,
userscripts: None,
user_stylesheets: Vec::new(),
output_file: None,
replace_surrogates: false,
gc_profile: false,
load_webfonts_synchronously: false,
headless: false,
hard_fail: true,
bubble_inline_sizes_separately: false,
show_debug_fragment_borders: false,
show_debug_parallel_layout: false,
enable_text_antialiasing: true,
enable_subpixel_text_antialiasing: true,
enable_canvas_antialiasing: true,
trace_layout: false,
debugger_port: None,
devtools_port: None,
webdriver_port: None,
initial_window_size: TypedSize2D::new(1024, 740),
user_agent: default_user_agent_string(DEFAULT_USER_AGENT).into(),
multiprocess: false,
random_pipeline_closure_probability: None,
random_pipeline_closure_seed: None,
sandbox: false,
dump_style_tree: false,
dump_rule_tree: false,
dump_flow_tree: false,
dump_display_list: false,
dump_display_list_json: false,
relayout_event: false,
profile_script_events: false,
profile_heartbeats: false,
disable_share_style_cache: false,
style_sharing_stats: false,
convert_mouse_to_touch: false,
exit_after_load: false,
no_native_titlebar: false,
enable_vsync: true,
webrender_stats: false,
use_msaa: false,
config_dir: None,
full_backtraces: false,
is_printing_version: false,
webrender_debug: false,
webrender_record: false,
webrender_batch: true,
precache_shaders: false,
signpost: false,
certificate_path: None,
unminify_js: false,
print_pwm: false,
}
}
pub fn from_cmdline_args(args: &[String]) -> ArgumentParsingResult {
let (app_name, args) = args.split_first().unwrap();
let mut opts = Options::new();
opts.optflag("c", "cpu", "CPU painting");
opts.optflag("g", "gpu", "GPU painting");
opts.optopt("o", "output", "Output file", "output.png");
opts.optopt("s", "size", "Size of tiles", "512");
opts.optopt("", "device-pixel-ratio", "Device pixels per px", "");
opts.optflagopt("p", "profile", "Time profiler flag and either a TSV output filename \
OR an interval for output to Stdout (blank for Stdout with interval of 5s)", "10 \
OR time.tsv");
opts.optflagopt("", "profiler-trace-path",
"Path to dump a self-contained HTML timeline of profiler traces",
"");
opts.optflagopt("m", "memory-profile", "Memory profiler flag and output interval", "10");
opts.optflag("x", "exit", "Exit after load flag");
opts.optopt("y", "layout-threads", "Number of threads to use for layout", "1");
opts.optflag("i", "nonincremental-layout", "Enable to turn off incremental layout.");
opts.optflagopt("", "userscripts",
"Uses userscripts in resources/user-agent-js, or a specified full path", "");
opts.optmulti("", "user-stylesheet",
"A user stylesheet to be added to every document", "file.css");
opts.optflag("z", "headless", "Headless mode");
opts.optflag("f", "hard-fail", "Exit on thread failure instead of displaying about:failure");
opts.optflag("F", "soft-fail", "Display about:failure on thread failure instead of exiting");
opts.optflagopt("", "remote-debugging-port", "Start remote debugger server on port", "2794");
opts.optflagopt("", "devtools", "Start remote devtools server on port", "6000");
opts.optflagopt("", "webdriver", "Start remote WebDriver server on port", "7000");
opts.optopt("", "resolution", "Set window resolution.", "1024x740");
opts.optopt("u",
"user-agent",
"Set custom user agent string (or ios / android / desktop for platform default)",
"NCSA Mosaic/1.0 (X11;SunOS 4.1.4 sun4m)");
opts.optflag("M", "multiprocess", "Run in multiprocess mode");
opts.optflag("S", "sandbox", "Run in a sandbox if multiprocess");
opts.optopt("",
"random-pipeline-closure-probability",
"Probability of randomly closing a pipeline (for testing constellation hardening).",
"0.0");
opts.optopt("", "random-pipeline-closure-seed", "A fixed seed for repeatbility of random pipeline closure.", "");
opts.optmulti("Z", "debug",
"A comma-separated string of debug options. Pass help to show available options.", "");
opts.optflag("h", "help", "Print this message");
opts.optopt("", "resources-path", "Path to find static resources", "/home/servo/resources");
opts.optopt("", "certificate-path", "Path to find SSL certificates", "/home/servo/resources/certs");
opts.optopt("", "content-process" , "Run as a content process and connect to the given pipe",
"servo-ipc-channel.abcdefg");
opts.optmulti("", "pref",
"A preference to set to enable", "dom.bluetooth.enabled");
opts.optflag("b", "no-native-titlebar", "Do not use native titlebar");
opts.optflag("w", "webrender", "Use webrender backend");
opts.optopt("G", "graphics", "Select graphics backend (gl or es2)", "gl");
opts.optopt("", "config-dir",
"config directory following xdg spec on linux platform", "");
opts.optflag("v", "version", "Display servo version information");
opts.optflag("", "unminify-js", "Unminify Javascript");
opts.optopt("", "profiler-db-user", "Profiler database user", "");
opts.optopt("", "profiler-db-pass", "Profiler database password", "");
opts.optopt("", "profiler-db-name", "Profiler database name", "");
opts.optflag("", "print-pwm", "Print Progressive Web Metrics");
let opt_match = match opts.parse(args) {
Ok(m) => m,
Err(f) => args_fail(&f.to_string()),
};
set_resources_path(opt_match.opt_str("resources-path"));
if opt_match.opt_present("h") || opt_match.opt_present("help") {
print_usage(app_name, &opts);
process::exit(0);
};
// If this is the content process, we'll receive the real options over IPC. So just fill in
// some dummy options for now.
if let Some(content_process) = opt_match.opt_str("content-process") {
MULTIPROCESS.store(true, Ordering::SeqCst);
return ArgumentParsingResult::ContentProcess(content_process);
}
let mut debug_options = DebugOptions::default();
for debug_string in opt_match.opt_strs("Z") {
if let Err(e) = debug_options.extend(debug_string) {
args_fail(&format!("error: unrecognized debug option: {}", e));
}
}
if debug_options.help {
print_debug_usage(app_name)
}
let cwd = env::current_dir().unwrap();
let url_opt = if !opt_match.free.is_empty() {
Some(&opt_match.free[0][..])
} else {
None
};
let is_running_problem_test =
url_opt
.as_ref()
.map_or(false, |url|
url.starts_with("http://web-platform.test:8000/2dcontext/drawing-images-to-the-canvas/") ||
url.starts_with("http://web-platform.test:8000/_mozilla/mozilla/canvas/") ||
url.starts_with("http://web-platform.test:8000/_mozilla/css/canvas_over_area.html"));
let url_opt = url_opt.and_then(|url_string| parse_url_or_filename(&cwd, url_string)
.or_else(|error| {
warn!("URL parsing failed ({:?}).", error);
Err(error)
}).ok());
let tile_size: usize = match opt_match.opt_str("s") {
Some(tile_size_str) => tile_size_str.parse()
.unwrap_or_else(|err| args_fail(&format!("Error parsing option: -s ({})", err))),
None => 512,
};
let device_pixels_per_px = opt_match.opt_str("device-pixel-ratio").map(|dppx_str|
dppx_str.parse()
.unwrap_or_else(|err| args_fail(&format!("Error parsing option: --device-pixel-ratio ({})", err)))
);
// If only the flag is present, default to a 5 second period for both profilers
let time_profiling = if opt_match.opt_present("p") {
match opt_match.opt_str("p") {
Some(argument) => match argument.parse::<f64>() {
Ok(interval) => Some(OutputOptions::Stdout(interval)) ,
Err(_) => {
match ServoUrl::parse(&argument) {
Ok(url) => Some(OutputOptions::DB(url, opt_match.opt_str("profiler-db-name"),
opt_match.opt_str("profiler-db-user"),
opt_match.opt_str("profiler-db-pass"))),
Err(_) => Some(OutputOptions::FileName(argument)),
}
}
},
None => Some(OutputOptions::Stdout(5.0 as f64)),
}
} else {
// if the p option doesn't exist:
None
};
if let Some(ref time_profiler_trace_path) = opt_match.opt_str("profiler-trace-path") {
let mut path = PathBuf::from(time_profiler_trace_path);
path.pop();
if let Err(why) = fs::create_dir_all(&path) {
error!("Couldn't create/open {:?}: {:?}",
Path::new(time_profiler_trace_path).to_string_lossy(), why);
}
}
let mem_profiler_period = opt_match.opt_default("m", "5").map(|period| {
period.parse().unwrap_or_else(|err| args_fail(&format!("Error parsing option: -m ({})", err)))
});
let mut layout_threads: Option<usize> = opt_match.opt_str("y")
.map(|layout_threads_str| {
layout_threads_str.parse()
.unwrap_or_else(|err| args_fail(&format!("Error parsing option: -y ({})", err)))
});
let nonincremental_layout = opt_match.opt_present("i");
let random_pipeline_closure_probability = opt_match.opt_str("random-pipeline-closure-probability").map(|prob|
prob.parse().unwrap_or_else(|err| {
args_fail(&format!("Error parsing option: --random-pipeline-closure-probability ({})", err))
})
);
let random_pipeline_closure_seed = opt_match.opt_str("random-pipeline-closure-seed").map(|seed|
seed.parse().unwrap_or_else(|err| {
args_fail(&format!("Error parsing option: --random-pipeline-closure-seed ({})", err))
})
);
let mut bubble_inline_sizes_separately = debug_options.bubble_widths;
if debug_options.trace_layout {
layout_threads = Some(1);
bubble_inline_sizes_separately = true;
}
let debugger_port = opt_match.opt_default("remote-debugging-port", "2794").map(|port| {
port.parse()
.unwrap_or_else(|err| args_fail(&format!("Error parsing option: --remote-debugging-port ({})", err)))
});
let devtools_port = opt_match.opt_default("devtools", "6000").map(|port| {
port.parse().unwrap_or_else(|err| args_fail(&format!("Error parsing option: --devtools ({})", err)))
});
let webdriver_port = opt_match.opt_default("webdriver", "7000").map(|port| {
port.parse().unwrap_or_else(|err| args_fail(&format!("Error parsing option: --webdriver ({})", err)))
});
let initial_window_size = match opt_match.opt_str("resolution") {
Some(res_string) => {
let res: Vec<u32> = res_string.split('x').map(|r| {
r.parse().unwrap_or_else(|err| args_fail(&format!("Error parsing option: --resolution ({})", err)))
}).collect();
TypedSize2D::new(res[0], res[1])
}
None => {
TypedSize2D::new(1024, 740)
}
};
if opt_match.opt_present("M") {
MULTIPROCESS.store(true, Ordering::SeqCst)
}
let user_agent = match opt_match.opt_str("u") {
Some(ref ua) if ua == "ios" => default_user_agent_string(UserAgent::iOS).into(),
Some(ref ua) if ua == "android" => default_user_agent_string(UserAgent::Android).into(),
Some(ref ua) if ua == "desktop" => default_user_agent_string(UserAgent::Desktop).into(),
Some(ua) => ua.into(),
None => default_user_agent_string(DEFAULT_USER_AGENT).into(),
};
let user_stylesheets = opt_match.opt_strs("user-stylesheet").iter().map(|filename| {
let path = cwd.join(filename);
let url = ServoUrl::from_url(Url::from_file_path(&path).unwrap());
let mut contents = Vec::new();
File::open(path)
.unwrap_or_else(|err| args_fail(&format!("Couldn't open {}: {}", filename, err)))
.read_to_end(&mut contents)
.unwrap_or_else(|err| args_fail(&format!("Couldn't read {}: {}", filename, err)));
(contents, url)
}).collect();
let do_not_use_native_titlebar =
opt_match.opt_present("b") ||
!PREFS.get("shell.native-titlebar.enabled").as_boolean().unwrap();
let is_printing_version = opt_match.opt_present("v") || opt_match.opt_present("version");
let opts = Opts {
is_running_problem_test: is_running_problem_test,
url: url_opt,
tile_size: tile_size,
device_pixels_per_px: device_pixels_per_px,
time_profiling: time_profiling,
time_profiler_trace_path: opt_match.opt_str("profiler-trace-path"),
mem_profiler_period: mem_profiler_period,
nonincremental_layout: nonincremental_layout,
userscripts: opt_match.opt_default("userscripts", ""),
user_stylesheets: user_stylesheets,
output_file: opt_match.opt_str("o"),
replace_surrogates: debug_options.replace_surrogates,
gc_profile: debug_options.gc_profile,
load_webfonts_synchronously: debug_options.load_webfonts_synchronously,
headless: opt_match.opt_present("z"),
hard_fail: opt_match.opt_present("f") && !opt_match.opt_present("F"),
bubble_inline_sizes_separately: bubble_inline_sizes_separately,
profile_script_events: debug_options.profile_script_events,
profile_heartbeats: debug_options.profile_heartbeats,
trace_layout: debug_options.trace_layout,
debugger_port: debugger_port,
devtools_port: devtools_port,
webdriver_port: webdriver_port,
initial_window_size: initial_window_size,
user_agent: user_agent,
multiprocess: opt_match.opt_present("M"),
sandbox: opt_match.opt_present("S"),
random_pipeline_closure_probability: random_pipeline_closure_probability,
random_pipeline_closure_seed: random_pipeline_closure_seed,
show_debug_fragment_borders: debug_options.show_fragment_borders,
show_debug_parallel_layout: debug_options.show_parallel_layout,
enable_text_antialiasing: !debug_options.disable_text_aa,
enable_subpixel_text_antialiasing: !debug_options.disable_subpixel_aa,
enable_canvas_antialiasing: !debug_options.disable_canvas_aa,
dump_style_tree: debug_options.dump_style_tree,
dump_rule_tree: debug_options.dump_rule_tree,
dump_flow_tree: debug_options.dump_flow_tree,
dump_display_list: debug_options.dump_display_list,
dump_display_list_json: debug_options.dump_display_list_json,
relayout_event: debug_options.relayout_event,
disable_share_style_cache: debug_options.disable_share_style_cache,
style_sharing_stats: debug_options.style_sharing_stats,
convert_mouse_to_touch: debug_options.convert_mouse_to_touch,
exit_after_load: opt_match.opt_present("x"),
no_native_titlebar: do_not_use_native_titlebar,
enable_vsync: !debug_options.disable_vsync,
webrender_stats: debug_options.webrender_stats,
use_msaa: debug_options.use_msaa,
config_dir: opt_match.opt_str("config-dir").map(Into::into),
full_backtraces: debug_options.full_backtraces,
is_printing_version: is_printing_version,
webrender_debug: debug_options.webrender_debug,
webrender_record: debug_options.webrender_record,
webrender_batch: !debug_options.webrender_disable_batch,
precache_shaders: debug_options.precache_shaders,
signpost: debug_options.signpost,
certificate_path: opt_match.opt_str("certificate-path"),
unminify_js: opt_match.opt_present("unminify-js"),
print_pwm: opt_match.opt_present("print-pwm"),
};
set_defaults(opts);
// These must happen after setting the default options, since the prefs rely on
// on the resource path.
// Note that command line preferences have the highest precedence
prefs::add_user_prefs();
for pref in opt_match.opt_strs("pref").iter() {
parse_pref_from_command_line(pref);
}
if let Some(layout_threads) = layout_threads {
PREFS.set("layout.threads", PrefValue::Number(layout_threads as f64));
} else if let Some(layout_threads) = PREFS.get("layout.threads").as_string() {
PREFS.set("layout.threads", PrefValue::Number(layout_threads.parse::<f64>().unwrap()));
} else if *PREFS.get("layout.threads") == PrefValue::Missing {
let layout_threads = cmp::max(num_cpus::get() * 3 / 4, 1);
PREFS.set("layout.threads", PrefValue::Number(layout_threads as f64));
}
ArgumentParsingResult::ChromeProcess
}
pub enum ArgumentParsingResult {
ChromeProcess,
ContentProcess(String),
}
// Make Opts available globally. This saves having to clone and pass
// opts everywhere it is used, which gets particularly cumbersome
// when passing through the DOM structures.
static mut DEFAULT_OPTIONS: *mut Opts = 0 as *mut Opts;
const INVALID_OPTIONS: *mut Opts = 0x01 as *mut Opts;
lazy_static! {
static ref OPTIONS: Opts = {
unsafe {
let initial = if !DEFAULT_OPTIONS.is_null() {
let opts = Box::from_raw(DEFAULT_OPTIONS);
*opts
} else {
default_opts()
};
DEFAULT_OPTIONS = INVALID_OPTIONS;
initial
}
};
}
pub fn set_defaults(opts: Opts) {
// Set the static to the new default value.
MULTIPROCESS.store(opts.multiprocess, Ordering::SeqCst);
unsafe {
assert!(DEFAULT_OPTIONS.is_null());
assert_ne!(DEFAULT_OPTIONS, INVALID_OPTIONS);
let box_opts = Box::new(opts);
DEFAULT_OPTIONS = Box::into_raw(box_opts);
}
}
pub fn parse_pref_from_command_line(pref: &str) {
let split: Vec<&str> = pref.splitn(2, '=').collect();
let pref_name = split[0];
let value = split.get(1);
match value {
Some(&"false") => PREFS.set(pref_name, PrefValue::Boolean(false)),
Some(&"true") | None => PREFS.set(pref_name, PrefValue::Boolean(true)),
Some(value) => match value.parse::<f64>() {
Ok(v) => PREFS.set(pref_name, PrefValue::Number(v)),
Err(_) => PREFS.set(pref_name, PrefValue::String(value.to_string()))
}
};
}
#[inline]
pub fn get() -> &'static Opts {
&OPTIONS
}
pub fn parse_url_or_filename(cwd: &Path, input: &str) -> Result<ServoUrl, ()> {
match ServoUrl::parse(input) {
Ok(url) => Ok(url),
Err(url::ParseError::RelativeUrlWithoutBase) => {
Url::from_file_path(&*cwd.join(input)).map(ServoUrl::from_url)
}
Err(_) => Err(()),
}
}
impl Opts {
pub fn should_use_osmesa(&self) -> bool {
self.headless
}
}