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Allow to generate Swift mocks from the SDK #2982

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Allow to generate Swift mocks from the SDK #2982

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47 changes: 45 additions & 2 deletions xtask/src/swift.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ use std::fs::{copy, create_dir_all, remove_dir_all, remove_file, rename};

use camino::{Utf8Path, Utf8PathBuf};
use clap::{Args, Subcommand};
use uniffi_bindgen::{bindings::TargetLanguage, library_mode::generate_bindings};
use uniffi_bindgen::{bindings::TargetLanguage, library_mode::generate_bindings, library_mode::generate_mocks};
use xshell::{cmd, pushd};

use crate::{workspace, Result};
Expand Down Expand Up @@ -33,6 +33,10 @@ enum SwiftCommand {
#[clap(long)]
only_target: Option<String>,

/// Build mocks
#[clap(long)]
build_mocks: Option<bool>,

/// Move the generated xcframework and swift sources into the given
/// components-folder
#[clap(long)]
Expand All @@ -44,6 +48,19 @@ enum SwiftCommand {
#[clap(long)]
sequentially: bool,
},

/// Builds mock files for the SDK for Swift.
BuildMocks {
/// Library path to use for generating mocks
#[clap(long)]
library_path: Utf8PathBuf,

/// Move the generated file source into the given
/// output-folder
/// Apple Silicon M1s
#[clap(long)]
output_directory: Option<Utf8PathBuf>,
},
}

impl SwiftArgs {
Expand All @@ -57,11 +74,13 @@ impl SwiftArgs {
profile,
components_path,
only_target,
build_mocks,
sequentially,
} => {
let profile = profile.as_deref().unwrap_or(if release { "release" } else { "dev" });
build_xcframework(profile, only_target, components_path, sequentially)
build_xcframework(profile, only_target, build_mocks.unwrap_or_else(|| false), components_path, sequentially)
}
SwiftCommand::BuildMocks { library_path, output_directory } => build_mocks(&library_path, output_directory),
}
}
}
Expand All @@ -85,6 +104,7 @@ fn build_library() -> Result<()> {
create_dir_all(swift_directory.as_path())?;

generate_uniffi(&ffi_directory.join(FFI_LIBRARY_NAME), &ffi_directory)?;
generate_uniffi_mocks(&ffi_directory.join(FFI_LIBRARY_NAME), &ffi_directory)?;

let module_map_file = ffi_directory.join("module.modulemap");
if module_map_file.exists() {
Expand Down Expand Up @@ -118,6 +138,7 @@ fn build_for_target(target: &str, profile: &str) -> Result<Utf8PathBuf> {
fn build_xcframework(
profile: &str,
only_target: Option<String>,
build_mocks: bool,
components_path: Option<Utf8PathBuf>,
sequentially: bool,
) -> Result<()> {
Expand Down Expand Up @@ -221,6 +242,11 @@ fn build_xcframework(
println!("-- Generating uniffi files");
generate_uniffi(&uniffi_lib_path, &generated_dir)?;

if build_mocks {
println!("-- Generating uniffi mock files");
generate_uniffi_mocks(&uniffi_lib_path, &generated_dir)?;
}

move_files("h", &generated_dir, &headers_dir)?;
consolidate_modulemap_files(&generated_dir, &headers_dir)?;

Expand Down Expand Up @@ -315,3 +341,20 @@ fn consolidate_modulemap_files(source: &Utf8PathBuf, destination: &Utf8PathBuf)
std::fs::write(destination.join("module.modulemap"), modulemap)?;
Ok(())
}

fn build_mocks(
library_path: &Utf8Path,
output_directory: Option<Utf8PathBuf>
) -> Result<()> {
let output_directory = output_directory.unwrap_or_else(|| library_path.parent().unwrap().into());

generate_uniffi_mocks(library_path, &output_directory)?;

println!("Mocks file generated in {output_directory}");
Ok(())
}

fn generate_uniffi_mocks(library_path: &Utf8Path, ffi_directory: &Utf8Path) -> Result<()> {
generate_mocks(library_path, None, &[TargetLanguage::Swift], None, ffi_directory, false)?;
Ok(())
}
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