mirror of https://github.com/encounter/objdiff.git
219 lines
7.0 KiB
Rust
219 lines
7.0 KiB
Rust
use std::{
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path::{Path, PathBuf},
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process::Command,
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str::from_utf8,
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sync::mpsc::Receiver,
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};
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use anyhow::{anyhow, Context, Error, Result};
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use time::OffsetDateTime;
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use crate::{
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app::{AppConfig, ObjectConfig},
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diff::{diff_objs, DiffAlg, DiffObjConfig},
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jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
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obj::{elf, ObjInfo},
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};
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pub struct BuildStatus {
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pub success: bool,
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pub log: String,
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}
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pub struct ObjDiffConfig {
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pub build_base: bool,
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pub build_target: bool,
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pub custom_make: Option<String>,
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pub project_dir: Option<PathBuf>,
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pub selected_obj: Option<ObjectConfig>,
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pub selected_wsl_distro: Option<String>,
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pub code_alg: DiffAlg,
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pub data_alg: DiffAlg,
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}
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impl ObjDiffConfig {
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pub(crate) fn from_config(config: &AppConfig) -> Self {
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ObjDiffConfig {
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build_base: config.build_base,
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build_target: config.build_target,
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custom_make: config.custom_make.clone(),
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project_dir: config.project_dir.clone(),
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selected_obj: config.selected_obj.clone(),
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selected_wsl_distro: config.selected_wsl_distro.clone(),
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code_alg: config.code_alg,
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data_alg: config.data_alg,
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}
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}
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}
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pub struct ObjDiffResult {
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pub first_status: BuildStatus,
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pub second_status: BuildStatus,
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pub first_obj: Option<ObjInfo>,
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pub second_obj: Option<ObjInfo>,
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pub time: OffsetDateTime,
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}
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fn run_make(cwd: &Path, arg: &Path, config: &ObjDiffConfig) -> BuildStatus {
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match (|| -> Result<BuildStatus> {
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let make = config.custom_make.as_deref().unwrap_or("make");
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#[cfg(not(windows))]
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let mut command = {
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let mut command = Command::new(make);
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command.current_dir(cwd).arg(arg);
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command
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};
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#[cfg(windows)]
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let mut command = {
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use std::os::windows::process::CommandExt;
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use path_slash::PathExt;
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let mut command = if config.selected_wsl_distro.is_some() {
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Command::new("wsl")
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} else {
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Command::new(make)
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};
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if let Some(distro) = &config.selected_wsl_distro {
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command
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.arg("--cd")
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.arg(cwd)
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.arg("-d")
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.arg(distro)
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.arg("--")
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.arg(make)
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.arg(arg.to_slash_lossy().as_ref());
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} else {
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command.current_dir(cwd).arg(arg.to_slash_lossy().as_ref());
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}
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command.creation_flags(winapi::um::winbase::CREATE_NO_WINDOW);
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command
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};
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let output = command.output().context("Failed to execute build")?;
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let stdout = from_utf8(&output.stdout).context("Failed to process stdout")?;
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let stderr = from_utf8(&output.stderr).context("Failed to process stderr")?;
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Ok(BuildStatus {
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success: output.status.code().unwrap_or(-1) == 0,
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log: format!("{stdout}\n{stderr}"),
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})
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})() {
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Ok(status) => status,
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Err(e) => BuildStatus { success: false, log: e.to_string() },
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}
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}
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fn run_build(
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context: &JobContext,
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cancel: Receiver<()>,
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config: ObjDiffConfig,
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) -> Result<Box<ObjDiffResult>> {
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let obj_config = config.selected_obj.as_ref().ok_or_else(|| Error::msg("Missing obj path"))?;
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let project_dir =
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config.project_dir.as_ref().ok_or_else(|| Error::msg("Missing project dir"))?;
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let target_path_rel = if let Some(target_path) = &obj_config.target_path {
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Some(target_path.strip_prefix(project_dir).map_err(|_| {
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anyhow!(
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"Target path '{}' doesn't begin with '{}'",
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target_path.display(),
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project_dir.display()
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)
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})?)
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} else {
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None
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};
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let base_path_rel = if let Some(base_path) = &obj_config.base_path {
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Some(base_path.strip_prefix(project_dir).map_err(|_| {
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anyhow!(
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"Base path '{}' doesn't begin with '{}'",
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base_path.display(),
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project_dir.display()
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)
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})?)
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} else {
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None
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};
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let mut total = 3;
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if config.build_target && target_path_rel.is_some() {
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total += 1;
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}
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if config.build_base && base_path_rel.is_some() {
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total += 1;
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}
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let first_status = match target_path_rel {
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Some(target_path_rel) if config.build_target => {
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update_status(
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context,
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format!("Building target {}", target_path_rel.display()),
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0,
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total,
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&cancel,
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)?;
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run_make(project_dir, target_path_rel, &config)
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}
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_ => BuildStatus { success: true, log: String::new() },
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};
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let second_status = match base_path_rel {
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Some(base_path_rel) if config.build_base => {
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update_status(
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context,
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format!("Building base {}", base_path_rel.display()),
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0,
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total,
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&cancel,
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)?;
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run_make(project_dir, base_path_rel, &config)
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}
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_ => BuildStatus { success: true, log: String::new() },
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};
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let time = OffsetDateTime::now_utc();
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let mut first_obj =
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match &obj_config.target_path {
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Some(target_path) if first_status.success => {
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update_status(
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context,
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format!("Loading target {}", target_path_rel.unwrap().display()),
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2,
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total,
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&cancel,
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)?;
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Some(elf::read(target_path).with_context(|| {
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format!("Failed to read object '{}'", target_path.display())
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})?)
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}
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_ => None,
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};
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let mut second_obj = match &obj_config.base_path {
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Some(base_path) if second_status.success => {
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update_status(
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context,
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format!("Loading base {}", base_path_rel.unwrap().display()),
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3,
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total,
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&cancel,
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)?;
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Some(
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elf::read(base_path)
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.with_context(|| format!("Failed to read object '{}'", base_path.display()))?,
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)
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}
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_ => None,
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};
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update_status(context, "Performing diff".to_string(), 4, total, &cancel)?;
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let diff_config = DiffObjConfig { code_alg: config.code_alg, data_alg: config.data_alg };
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diff_objs(&diff_config, first_obj.as_mut(), second_obj.as_mut())?;
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update_status(context, "Complete".to_string(), total, total, &cancel)?;
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Ok(Box::new(ObjDiffResult { first_status, second_status, first_obj, second_obj, time }))
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}
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pub fn start_build(ctx: &egui::Context, config: ObjDiffConfig) -> JobState {
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start_job(ctx, "Object diff", Job::ObjDiff, move |context, cancel| {
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run_build(&context, cancel, config).map(|result| JobResult::ObjDiff(Some(result)))
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})
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}
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