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rust.rs
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// Copyright 2019-2021 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
use std::{
ffi::OsStr,
fs::{File, FileType},
io::{Read, Write},
path::{Path, PathBuf},
process::ExitStatus,
str::FromStr,
sync::{
atomic::{AtomicBool, Ordering},
mpsc::{channel, sync_channel},
Arc, Mutex,
},
time::{Duration, Instant},
};
use anyhow::Context;
#[cfg(target_os = "linux")]
use heck::ToKebabCase;
use log::warn;
use log::{debug, info};
use notify::{watcher, DebouncedEvent, RecursiveMode, Watcher};
use serde::Deserialize;
use shared_child::SharedChild;
use tauri_bundler::{
AppCategory, BundleBinary, BundleSettings, DebianSettings, MacOsSettings, PackageSettings,
UpdaterSettings, WindowsSettings,
};
use super::{AppSettings, ExitReason, Interface};
use crate::helpers::{
app_paths::tauri_dir,
config::{reload as reload_config, wix_settings, Config},
};
mod desktop;
mod manifest;
use manifest::{rewrite_manifest, Manifest};
#[derive(Debug, Clone)]
pub struct Options {
pub runner: Option<String>,
pub debug: bool,
pub target: Option<String>,
pub features: Option<Vec<String>>,
pub args: Vec<String>,
pub config: Option<String>,
pub no_watch: bool,
}
impl From<crate::build::Options> for Options {
fn from(options: crate::build::Options) -> Self {
Self {
runner: options.runner,
debug: options.debug,
target: options.target,
features: options.features,
args: options.args,
config: options.config,
no_watch: true,
}
}
}
impl From<crate::dev::Options> for Options {
fn from(options: crate::dev::Options) -> Self {
Self {
runner: options.runner,
debug: !options.release_mode,
target: options.target,
features: options.features,
args: options.args,
config: options.config,
no_watch: options.no_watch,
}
}
}
pub struct DevChild {
manually_killed_app: Arc<AtomicBool>,
build_child: Arc<SharedChild>,
app_child: Arc<Mutex<Option<Arc<SharedChild>>>>,
}
impl DevChild {
fn kill(&self) -> std::io::Result<()> {
if let Some(child) = &*self.app_child.lock().unwrap() {
child.kill()?;
} else {
self.build_child.kill()?;
}
self.manually_killed_app.store(true, Ordering::Relaxed);
Ok(())
}
fn try_wait(&self) -> std::io::Result<Option<ExitStatus>> {
if let Some(child) = &*self.app_child.lock().unwrap() {
child.try_wait()
} else {
self.build_child.try_wait()
}
}
}
#[derive(Debug)]
pub struct Target {
name: String,
installed: bool,
}
pub struct Rust {
app_settings: RustAppSettings,
config_features: Vec<String>,
product_name: Option<String>,
available_targets: Option<Vec<Target>>,
}
impl Interface for Rust {
type AppSettings = RustAppSettings;
fn new(config: &Config) -> crate::Result<Self> {
let manifest = {
let (tx, rx) = channel();
let mut watcher = watcher(tx, Duration::from_secs(1)).unwrap();
watcher.watch(tauri_dir().join("Cargo.toml"), RecursiveMode::Recursive)?;
let manifest = rewrite_manifest(config)?;
let now = Instant::now();
let timeout = Duration::from_secs(2);
loop {
if now.elapsed() >= timeout {
break;
}
if let Ok(DebouncedEvent::NoticeWrite(_)) = rx.try_recv() {
break;
}
}
manifest
};
if let Some(minimum_system_version) = &config.tauri.bundle.macos.minimum_system_version {
std::env::set_var("MACOSX_DEPLOYMENT_TARGET", minimum_system_version);
}
Ok(Self {
app_settings: RustAppSettings::new(config, manifest)?,
config_features: config.build.features.clone().unwrap_or_default(),
product_name: config.package.product_name.clone(),
available_targets: None,
})
}
fn app_settings(&self) -> &Self::AppSettings {
&self.app_settings
}
fn build(&mut self, mut options: Options) -> crate::Result<()> {
options
.features
.get_or_insert(Vec::new())
.push("custom-protocol".into());
desktop::build(
options,
&self.app_settings,
self.product_name.clone(),
&mut self.available_targets,
self.config_features.clone(),
)?;
Ok(())
}
fn dev<F: Fn(ExitStatus, ExitReason) + Send + Sync + 'static>(
&mut self,
options: Options,
on_exit: F,
) -> crate::Result<()> {
let on_exit = Arc::new(on_exit);
let on_exit_ = on_exit.clone();
if options.no_watch {
let (tx, rx) = sync_channel(1);
self.run_dev(options, move |status, reason| {
tx.send(()).unwrap();
on_exit_(status, reason)
})?;
rx.recv().unwrap();
Ok(())
} else {
let child = self.run_dev(options.clone(), move |status, reason| {
on_exit_(status, reason)
})?;
self.run_dev_watcher(child, options, on_exit)
}
}
}
fn lookup<F: FnMut(FileType, PathBuf)>(dir: &Path, mut f: F) {
let mut default_gitignore = std::env::temp_dir();
default_gitignore.push(".tauri-dev");
let _ = std::fs::create_dir_all(&default_gitignore);
default_gitignore.push(".gitignore");
if !default_gitignore.exists() {
if let Ok(mut file) = std::fs::File::create(default_gitignore.clone()) {
let _ = file.write_all(crate::dev::TAURI_DEV_WATCHER_GITIGNORE);
}
}
let mut builder = ignore::WalkBuilder::new(dir);
builder.add_custom_ignore_filename(".taurignore");
let _ = builder.add_ignore(default_gitignore);
if let Ok(ignore_file) = std::env::var("TAURI_DEV_WATCHER_IGNORE_FILE") {
builder.add_ignore(ignore_file);
}
builder.require_git(false).ignore(false).max_depth(Some(1));
for entry in builder.build().flatten() {
f(entry.file_type().unwrap(), dir.join(entry.path()));
}
}
impl Rust {
fn run_dev<F: Fn(ExitStatus, ExitReason) + Send + Sync + 'static>(
&mut self,
mut options: Options,
on_exit: F,
) -> crate::Result<DevChild> {
if !options.args.contains(&"--no-default-features".into()) {
let manifest_features = self.app_settings.manifest.features();
let enable_features: Vec<String> = manifest_features
.get("default")
.cloned()
.unwrap_or_default()
.into_iter()
.filter(|feature| {
if let Some(manifest_feature) = manifest_features.get(feature) {
!manifest_feature.contains(&"tauri/custom-protocol".into())
} else {
feature != "tauri/custom-protocol"
}
})
.collect();
options.args.push("--no-default-features".into());
if !enable_features.is_empty() {
options
.features
.get_or_insert(Vec::new())
.extend(enable_features);
}
}
let mut args = Vec::new();
let mut run_args = Vec::new();
let mut reached_run_args = false;
for arg in options.args.clone() {
if reached_run_args {
run_args.push(arg);
} else if arg == "--" {
reached_run_args = true;
} else {
args.push(arg);
}
}
options.args = args;
desktop::run_dev(
options,
run_args,
&mut self.available_targets,
self.config_features.clone(),
&self.app_settings,
self.product_name.clone(),
on_exit,
)
}
fn run_dev_watcher<F: Fn(ExitStatus, ExitReason) + Send + Sync + 'static>(
&mut self,
child: DevChild,
options: Options,
on_exit: Arc<F>,
) -> crate::Result<()> {
let process = Arc::new(Mutex::new(child));
let (tx, rx) = channel();
let tauri_path = tauri_dir();
let workspace_path = get_workspace_dir(&tauri_path);
let watch_folders = if tauri_path == workspace_path {
vec![tauri_path]
} else {
let cargo_settings = CargoSettings::load(&workspace_path)?;
cargo_settings
.workspace
.as_ref()
.map(|w| {
w.members
.clone()
.unwrap_or_default()
.into_iter()
.map(|p| workspace_path.join(p))
.collect()
})
.unwrap_or_else(|| vec![tauri_path])
};
let mut watcher = watcher(tx, Duration::from_secs(1)).unwrap();
for path in watch_folders {
info!("Watching {} for changes...", path.display());
lookup(&path, |file_type, p| {
if p != path {
debug!("Watching {} for changes...", p.display());
let _ = watcher.watch(
p,
if file_type.is_dir() {
RecursiveMode::Recursive
} else {
RecursiveMode::NonRecursive
},
);
}
});
}
loop {
let on_exit = on_exit.clone();
if let Ok(event) = rx.recv() {
let event_path = match event {
DebouncedEvent::Create(path) => Some(path),
DebouncedEvent::Remove(path) => Some(path),
DebouncedEvent::Rename(_, dest) => Some(dest),
DebouncedEvent::Write(path) => Some(path),
_ => None,
};
if let Some(event_path) = event_path {
if event_path.file_name() == Some(OsStr::new("tauri.conf.json")) {
let config = reload_config(options.config.as_deref())?;
self.app_settings.manifest =
rewrite_manifest(config.lock().unwrap().as_ref().unwrap())?;
} else {
// When tauri.conf.json is changed, rewrite_manifest will be called
// which will trigger the watcher again
// So the app should only be started when a file other than tauri.conf.json is changed
let mut p = process.lock().unwrap();
p.kill().with_context(|| "failed to kill app process")?;
// wait for the process to exit
loop {
if let Ok(Some(_)) = p.try_wait() {
break;
}
}
*p = self.run_dev(options.clone(), move |status, reason| {
on_exit(status, reason)
})?;
}
}
}
}
}
}
/// The `workspace` section of the app configuration (read from Cargo.toml).
#[derive(Clone, Debug, Deserialize)]
struct WorkspaceSettings {
/// the workspace members.
members: Option<Vec<String>>,
}
#[derive(Clone, Debug, Deserialize)]
struct BinarySettings {
name: String,
path: Option<String>,
}
/// The package settings.
#[derive(Debug, Clone, Deserialize)]
pub struct CargoPackageSettings {
/// the package's name.
pub name: Option<String>,
/// the package's version.
pub version: Option<String>,
/// the package's description.
pub description: Option<String>,
/// the package's homepage.
pub homepage: Option<String>,
/// the package's authors.
pub authors: Option<Vec<String>>,
/// the default binary to run.
pub default_run: Option<String>,
}
/// The Cargo settings (Cargo.toml root descriptor).
#[derive(Clone, Debug, Deserialize)]
struct CargoSettings {
/// the package settings.
///
/// it's optional because ancestor workspace Cargo.toml files may not have package info.
package: Option<CargoPackageSettings>,
/// the workspace settings.
///
/// it's present if the read Cargo.toml belongs to a workspace root.
workspace: Option<WorkspaceSettings>,
/// the binary targets configuration.
bin: Option<Vec<BinarySettings>>,
}
impl CargoSettings {
/// Try to load a set of CargoSettings from a "Cargo.toml" file in the specified directory.
fn load(dir: &Path) -> crate::Result<Self> {
let toml_path = dir.join("Cargo.toml");
let mut toml_str = String::new();
let mut toml_file = File::open(toml_path).with_context(|| "failed to open Cargo.toml")?;
toml_file
.read_to_string(&mut toml_str)
.with_context(|| "failed to read Cargo.toml")?;
toml::from_str(&toml_str)
.with_context(|| "failed to parse Cargo.toml")
.map_err(Into::into)
}
}
#[derive(Deserialize)]
struct CargoBuildConfig {
#[serde(rename = "target-dir")]
target_dir: Option<String>,
}
#[derive(Deserialize)]
struct CargoConfig {
build: Option<CargoBuildConfig>,
}
pub struct RustAppSettings {
manifest: Manifest,
cargo_settings: CargoSettings,
cargo_package_settings: CargoPackageSettings,
package_settings: PackageSettings,
}
impl AppSettings for RustAppSettings {
fn get_package_settings(&self) -> PackageSettings {
self.package_settings.clone()
}
fn get_bundle_settings(
&self,
config: &Config,
features: &[String],
) -> crate::Result<BundleSettings> {
tauri_config_to_bundle_settings(
&self.manifest,
features,
config.tauri.bundle.clone(),
config.tauri.system_tray.clone(),
config.tauri.updater.clone(),
)
}
fn app_binary_path(&self, options: &Options) -> crate::Result<PathBuf> {
let bin_name = self
.cargo_package_settings()
.name
.clone()
.expect("Cargo manifest must have the `package.name` field");
let out_dir = self
.out_dir(options.target.clone(), options.debug)
.with_context(|| "failed to get project out directory")?;
let target: String = if let Some(target) = options.target.clone() {
target
} else {
tauri_utils::platform::target_triple()?
};
let binary_extension: String = if target.contains("windows") {
"exe"
} else {
""
}
.into();
Ok(out_dir.join(bin_name).with_extension(&binary_extension))
}
fn get_binaries(&self, config: &Config, target: &str) -> crate::Result<Vec<BundleBinary>> {
let mut binaries: Vec<BundleBinary> = vec![];
let binary_extension: String = if target.contains("windows") {
".exe"
} else {
""
}
.into();
if let Some(bin) = &self.cargo_settings.bin {
let default_run = self
.package_settings
.default_run
.clone()
.unwrap_or_else(|| "".to_string());
for binary in bin {
binaries.push(
if Some(&binary.name) == self.cargo_package_settings.name.as_ref()
|| binary.name.as_str() == default_run
{
BundleBinary::new(
format!(
"{}{}",
config
.package
.binary_name()
.unwrap_or_else(|| binary.name.clone()),
&binary_extension
),
true,
)
} else {
BundleBinary::new(
format!("{}{}", binary.name.clone(), &binary_extension),
false,
)
}
.set_src_path(binary.path.clone()),
)
}
}
let mut bins_path = tauri_dir();
bins_path.push("src/bin");
if let Ok(fs_bins) = std::fs::read_dir(bins_path) {
for entry in fs_bins {
let path = entry?.path();
if let Some(name) = path.file_stem() {
let bin_exists = binaries.iter().any(|bin| {
bin.name() == name || path.ends_with(bin.src_path().unwrap_or(&"".to_string()))
});
if !bin_exists {
binaries.push(BundleBinary::new(
format!("{}{}", name.to_string_lossy(), &binary_extension),
false,
))
}
}
}
}
if let Some(default_run) = self.package_settings.default_run.as_ref() {
match binaries.iter_mut().find(|bin| bin.name() == default_run) {
Some(bin) => {
if let Some(bin_name) = config.package.binary_name() {
bin.set_name(bin_name);
}
}
None => {
binaries.push(BundleBinary::new(
format!(
"{}{}",
config
.package
.binary_name()
.unwrap_or_else(|| default_run.to_string()),
&binary_extension
),
true,
));
}
}
}
match binaries.len() {
0 => binaries.push(BundleBinary::new(
#[cfg(target_os = "linux")]
self.package_settings.product_name.to_kebab_case(),
#[cfg(not(target_os = "linux"))]
format!(
"{}{}",
self.package_settings.product_name.clone(),
&binary_extension
),
true,
)),
1 => binaries.get_mut(0).unwrap().set_main(true),
_ => {}
}
Ok(binaries)
}
}
impl RustAppSettings {
pub fn new(config: &Config, manifest: Manifest) -> crate::Result<Self> {
let cargo_settings =
CargoSettings::load(&tauri_dir()).with_context(|| "failed to load cargo settings")?;
let cargo_package_settings = match &cargo_settings.package {
Some(package_info) => package_info.clone(),
None => {
return Err(anyhow::anyhow!(
"No package info in the config file".to_owned(),
))
}
};
let package_settings = PackageSettings {
product_name: config.package.product_name.clone().unwrap_or_else(|| {
cargo_package_settings
.name
.clone()
.expect("Cargo manifest must have the `package.name` field")
}),
version: config.package.version.clone().unwrap_or_else(|| {
cargo_package_settings
.version
.clone()
.expect("Cargo manifest must have the `package.version` field")
}),
description: cargo_package_settings
.description
.clone()
.unwrap_or_default(),
homepage: cargo_package_settings.homepage.clone(),
authors: cargo_package_settings.authors.clone(),
default_run: cargo_package_settings.default_run.clone(),
};
Ok(Self {
manifest,
cargo_settings,
cargo_package_settings,
package_settings,
})
}
pub fn cargo_package_settings(&self) -> &CargoPackageSettings {
&self.cargo_package_settings
}
pub fn out_dir(&self, target: Option<String>, debug: bool) -> crate::Result<PathBuf> {
let tauri_dir = tauri_dir();
let workspace_dir = get_workspace_dir(&tauri_dir);
get_target_dir(&workspace_dir, target, !debug)
}
}
/// This function determines where 'target' dir is and suffixes it with 'release' or 'debug'
/// to determine where the compiled binary will be located.
fn get_target_dir(
project_root_dir: &Path,
target: Option<String>,
is_release: bool,
) -> crate::Result<PathBuf> {
let mut path: PathBuf = match std::env::var_os("CARGO_TARGET_DIR") {
Some(target_dir) => target_dir.into(),
None => {
let mut root_dir = project_root_dir.to_path_buf();
let target_path: Option<PathBuf> = loop {
// cargo reads configs under .cargo/config.toml or .cargo/config
let mut cargo_config_path = root_dir.join(".cargo/config");
if !cargo_config_path.exists() {
cargo_config_path = root_dir.join(".cargo/config.toml");
}
// if the path exists, parse it
if cargo_config_path.exists() {
let mut config_str = String::new();
let mut config_file = File::open(&cargo_config_path)
.with_context(|| format!("failed to open {:?}", cargo_config_path))?;
config_file
.read_to_string(&mut config_str)
.with_context(|| "failed to read cargo config file")?;
let config: CargoConfig =
toml::from_str(&config_str).with_context(|| "failed to parse cargo config file")?;
if let Some(build) = config.build {
if let Some(target_dir) = build.target_dir {
break Some(target_dir.into());
}
}
}
if !root_dir.pop() {
break None;
}
};
target_path.unwrap_or_else(|| project_root_dir.join("target"))
}
};
if let Some(ref triple) = target {
path.push(triple);
}
path.push(if is_release { "release" } else { "debug" });
Ok(path)
}
/// Walks up the file system, looking for a Cargo.toml file
/// If one is found before reaching the root, then the current_dir's package belongs to that parent workspace if it's listed on [workspace.members].
///
/// If this package is part of a workspace, returns the path to the workspace directory
/// Otherwise returns the current directory.
pub fn get_workspace_dir(current_dir: &Path) -> PathBuf {
let mut dir = current_dir.to_path_buf();
let project_path = dir.clone();
while dir.pop() {
if dir.join("Cargo.toml").exists() {
match CargoSettings::load(&dir) {
Ok(cargo_settings) => {
if let Some(workspace_settings) = cargo_settings.workspace {
if let Some(members) = workspace_settings.members {
if members.iter().any(|member| {
glob::glob(&dir.join(member).to_string_lossy())
.unwrap()
.any(|p| p.unwrap() == project_path)
}) {
return dir;
}
}
}
}
Err(e) => {
warn!(
"Found `{}`, which may define a parent workspace, but \
failed to parse it. If this is indeed a parent workspace, undefined behavior may occur: \
\n {:#}",
dir.display(),
e
);
}
}
}
}
// Nothing found walking up the file system, return the starting directory
current_dir.to_path_buf()
}
#[allow(unused_variables)]
fn tauri_config_to_bundle_settings(
manifest: &Manifest,
features: &[String],
config: crate::helpers::config::BundleConfig,
system_tray_config: Option<crate::helpers::config::SystemTrayConfig>,
updater_config: crate::helpers::config::UpdaterConfig,
) -> crate::Result<BundleSettings> {
let enabled_features = manifest.all_enabled_features(features);
#[cfg(windows)]
let windows_icon_path = PathBuf::from(
config
.icon
.iter()
.find(|i| i.ends_with(".ico"))
.cloned()
.expect("the bundle config must have a `.ico` icon"),
);
#[cfg(not(windows))]
let windows_icon_path = PathBuf::from("");
#[allow(unused_mut)]
let mut resources = config.resources.unwrap_or_default();
#[allow(unused_mut)]
let mut depends = config.deb.depends.unwrap_or_default();
#[cfg(target_os = "linux")]
{
if let Some(system_tray_config) = &system_tray_config {
let tray = std::env::var("TAURI_TRAY").unwrap_or_else(|_| "ayatana".to_string());
if tray == "ayatana" {
depends.push("libayatana-appindicator3-1".into());
} else {
depends.push("libappindicator3-1".into());
}
}
// provides `libwebkit2gtk-4.0.so.37` and all `4.0` versions have the -37 package name
depends.push("libwebkit2gtk-4.0-37".to_string());
depends.push("libgtk-3-0".to_string());
}
#[cfg(windows)]
{
if let Some(webview_fixed_runtime_path) = &config.windows.webview_fixed_runtime_path {
resources.push(webview_fixed_runtime_path.display().to_string());
} else if let crate::helpers::config::WebviewInstallMode::FixedRuntime { path } =
&config.windows.webview_install_mode
{
resources.push(path.display().to_string());
}
}
let signing_identity = match std::env::var_os("APPLE_SIGNING_IDENTITY") {
Some(signing_identity) => Some(
signing_identity
.to_str()
.expect("failed to convert APPLE_SIGNING_IDENTITY to string")
.to_string(),
),
None => config.macos.signing_identity,
};
let provider_short_name = match std::env::var_os("APPLE_PROVIDER_SHORT_NAME") {
Some(provider_short_name) => Some(
provider_short_name
.to_str()
.expect("failed to convert APPLE_PROVIDER_SHORT_NAME to string")
.to_string(),
),
None => config.macos.provider_short_name,
};
Ok(BundleSettings {
identifier: Some(config.identifier),
icon: Some(config.icon),
resources: if resources.is_empty() {
None
} else {
Some(resources)
},
copyright: config.copyright,
category: match config.category {
Some(category) => Some(AppCategory::from_str(&category).map_err(|e| match e {
Some(e) => anyhow::anyhow!("invalid category, did you mean `{}`?", e),
None => anyhow::anyhow!("invalid category"),
})?),
None => None,
},
short_description: config.short_description,
long_description: config.long_description,
external_bin: config.external_bin,
deb: DebianSettings {
depends: if depends.is_empty() {
None
} else {
Some(depends)
},
files: config.deb.files,
},
macos: MacOsSettings {
frameworks: config.macos.frameworks,
minimum_system_version: config.macos.minimum_system_version,
license: config.macos.license,
exception_domain: config.macos.exception_domain,
signing_identity,
provider_short_name,
entitlements: config.macos.entitlements,
info_plist_path: {
let path = tauri_dir().join("Info.plist");
if path.exists() {
Some(path)
} else {
None
}
},
},
windows: WindowsSettings {
timestamp_url: config.windows.timestamp_url,
tsp: config.windows.tsp,
digest_algorithm: config.windows.digest_algorithm,
certificate_thumbprint: config.windows.certificate_thumbprint,
wix: config.windows.wix.map(|w| {
let mut wix = wix_settings(w);
wix.license = wix.license.map(|l| tauri_dir().join(l));
wix
}),
icon_path: windows_icon_path,
webview_install_mode: config.windows.webview_install_mode,
webview_fixed_runtime_path: config.windows.webview_fixed_runtime_path,
allow_downgrades: config.windows.allow_downgrades,
},
updater: Some(UpdaterSettings {
active: updater_config.active,
// we set it to true by default we shouldn't have to use
// unwrap_or as we have a default value but used to prevent any failing
dialog: updater_config.dialog,
pubkey: updater_config.pubkey,
endpoints: updater_config
.endpoints
.map(|endpoints| endpoints.iter().map(|e| e.to_string()).collect()),
msiexec_args: Some(updater_config.windows.install_mode.msiexec_args()),
}),
..Default::default()
})
}