Support min_version field in objdiff.json

- Support `completed` field for objects in project config. In object tree, displays red for incomplete, green for complete.
- Add support for one-sided diffs. A project can include objects without an associated source file for viewing.
- Add versioning to AppConfig, supporting upgrades without losing user configuration.

.github/workflows/build.yaml

@@ -20,7 +20,9 @@ jobs:
       RUSTFLAGS: -D warnings
     steps:
       - name: Install dependencies
-        run: sudo apt-get -y install libgtk-3-dev
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install libgtk-3-dev
       - name: Checkout
         uses: actions/checkout@v3
       - name: Setup Rust toolchain
@@ -58,7 +60,9 @@ jobs:
     steps:
       - name: Install dependencies
         if: matrix.platform == 'ubuntu-latest'
-        run: sudo apt-get -y install libgtk-3-dev
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install libgtk-3-dev
       - name: Checkout
         uses: actions/checkout@v3
       - name: Setup Rust toolchain
@@ -89,7 +93,9 @@ jobs:
     steps:
       - name: Install dependencies
         if: matrix.packages != ''
-        run: sudo apt-get -y install ${{ matrix.packages }}
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install ${{ matrix.packages }}
       - name: Checkout
         uses: actions/checkout@v3
       - name: Setup Rust toolchain

Cargo.toml

@@ -1,8 +1,8 @@
 [package]
 name = "objdiff"
-version = "0.2.1"
+version = "0.4.1"
 edition = "2021"
-rust-version = "1.62"
+rust-version = "1.65"
 authors = ["Luke Street <luke@street.dev>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/encounter/objdiff"
@@ -11,40 +11,65 @@ description = """
 A local diffing tool for decompilation projects.
 """
 publish = false
+build = "build.rs"
 
 [profile.release]
 lto = "thin"
 strip = "debuginfo"
 
+[features]
+default = []
+wgpu = ["eframe/wgpu"]
+
 [dependencies]
-anyhow = "1.0.66"
+anyhow = "1.0.71"
+byteorder = "1.4.3"
+bytes = "1.4.0"
 cfg-if = "1.0.0"
-const_format = "0.2.30"
-cwdemangle = { git = "https://github.com/encounter/cwdemangle", rev = "286f3d1d29ee2457db89043782725631845c3e4c" }
-eframe = { version = "0.19.0", features = ["persistence"] } # , "wgpu"
-egui = "0.19.0"
-egui_extras = "0.19.0"
+const_format = "0.2.31"
+cwdemangle = "0.1.6"
+dirs = "5.0.1"
+eframe = { version = "0.22.0", features = ["persistence"] }
+egui = "0.22.0"
+egui_extras = "0.22.0"
 flagset = "0.4.3"
-log = "0.4.17"
-memmap2 = "0.5.8"
-notify = "5.0.0"
-object = { version = "0.30.0", features = ["read_core", "std", "elf"], default-features = false }
-ppc750cl = { git = "https://github.com/encounter/ppc750cl", rev = "aa631a33de7882c679afca89350898b87cb3ba3f" }
-rabbitizer = { git = "https://github.com/encounter/rabbitizer-rs", rev = "10c279b2ef251c62885b1dcdcfe740b0db8e9956" }
-rfd = { version = "0.10.0" } # , default-features = false, features = ['xdg-portal']
-self_update = "0.32.0"
+globset = { version = "0.4.13", features = ["serde1"] }
+log = "0.4.19"
+memmap2 = "0.7.1"
+notify = "6.0.1"
+object = { version = "0.31.1", features = ["read_core", "std", "elf"], default-features = false }
+png = "0.17.9"
+ppc750cl = { git = "https://github.com/terorie/ppc750cl", rev = "9ae36eef34aa6d74e00972c7671f547a2acfd0aa" }
+rabbitizer = "1.7.4"
+rfd = { version = "0.11.4" } #, default-features = false, features = ['xdg-portal']
+ron = "0.8.0"
+semver = "1.0.17"
 serde = { version = "1", features = ["derive"] }
-thiserror = "1.0.37"
-time = { version = "0.3.17", features = ["formatting", "local-offset"] }
-toml = "0.5.9"
+serde_json = "1.0.104"
+serde_yaml = "0.9.25"
+tempfile = "3.6.0"
+thiserror = "1.0.41"
+time = { version = "0.3.22", features = ["formatting", "local-offset"] }
+toml = "0.7.6"
 twox-hash = "1.6.3"
-tempfile = "3.3.0"
-reqwest = "0.11.13"
+
+# For Linux static binaries, use rustls
+[target.'cfg(target_os = "linux")'.dependencies]
+reqwest = { version = "0.11.18", default-features = false, features = ["blocking", "json", "rustls"] }
+self_update = { version = "0.37.0", default-features = false, features = ["rustls"] }
+
+# For all other platforms, use native TLS
+[target.'cfg(not(target_os = "linux"))'.dependencies]
+reqwest = "0.11.18"
+self_update = "0.37.0"
 
 [target.'cfg(windows)'.dependencies]
 path-slash = "0.2.1"
 winapi = "0.3.9"
 
+[target.'cfg(windows)'.build-dependencies]
+winres = "0.1.12"
+
 [target.'cfg(unix)'.dependencies]
 exec = "0.3.1"
 
@@ -58,5 +83,5 @@ console_error_panic_hook = "0.1.7"
 tracing-wasm = "0.2"
 
 [build-dependencies]
-anyhow = "1.0.66"
-vergen = { version = "7.4.3", features = ["build", "cargo", "git"], default-features = false }
+anyhow = "1.0.71"
+vergen = { version = "8.2.4", features = ["build", "cargo", "git", "gitcl"] }

README.md

@@ -5,14 +5,122 @@
 
 A local diffing tool for decompilation projects.
 
-Currently supports:
+Supports:
 - PowerPC 750CL (GameCube & Wii)
 - MIPS (Nintendo 64)
 
+See [Usage](#usage) for more information.
+
 ![Symbol Screenshot](assets/screen-symbols.png)
 ![Diff Screenshot](assets/screen-diff.png)
 
-### License
+## Usage
+
+objdiff works by comparing two relocatable object files (`.o`). The objects are expected to have the same relative path
+from the "target" and "base" directories.
+
+For example, if the target ("expected") object is located at `build/asm/MetroTRK/mslsupp.o` and the base ("actual")
+object is located at `build/src/MetroTRK/mslsupp.o`, the following configuration would be used:
+
+- Target build directory: `build/asm`
+- Base build directory: `build/src`
+- Object: `MetroTRK/mslsupp.o`
+
+objdiff will then execute the build system from the project directory to build both objects:
+
+```sh
+$ make build/asm/MetroTRK/mslsupp.o # Only if "Build target object" is enabled
+$ make build/src/MetroTRK/mslsupp.o
+```
+
+The objects will then be compared and the results will be displayed in the UI.
+
+See [Configuration](#configuration) for more information.
+
+## Configuration
+
+While **not required** (most settings can be specified in the UI), projects can add an `objdiff.json` (or
+`objdiff.yaml`, `objdiff.yml`) file to configure the tool automatically. The configuration file must be located in
+the root project directory.
+
+If your project has a generator script (e.g. `configure.py`), it's recommended to generate the objdiff configuration
+file as well. You can then add `objdiff.json` to your `.gitignore` to prevent it from being committed.
+
+```json5
+// objdiff.json
+{
+  "custom_make": "ninja",
+
+  // Only required if objects use "path" instead of "target_path" and "base_path".
+  "target_dir": "build/asm",
+  "base_dir": "build/src",
+
+  "build_target": true,
+  "watch_patterns": [
+    "*.c",
+    "*.cp",
+    "*.cpp",
+    "*.h",
+    "*.hpp",
+    "*.py"
+  ],
+  "objects": [
+    {
+      "name": "main/MetroTRK/mslsupp",
+
+      // Option 1: Relative to target_dir and base_dir
+      "path": "MetroTRK/mslsupp.o",
+      // Option 2: Explicit paths from project root
+      // Useful for more complex directory layouts
+      "target_path": "build/asm/MetroTRK/mslsupp.o",
+      "base_path": "build/src/MetroTRK/mslsupp.o",
+      
+      "reverse_fn_order": false
+    },
+    // ...
+  ]
+}
+```
+
+`custom_make` _(optional)_: By default, objdiff will use `make` to build the project.  
+If the project uses a different build system (e.g. `ninja`), specify it here.
+
+`target_dir` _(optional)_: Relative from the root of the project, this where the "target" or "expected" objects are located.  
+These are the **intended result** of the match.
+
+`base_dir` _(optional)_: Relative from the root of the project, this is where the "base" or "actual" objects are located.  
+These are objects built from the **current source code**.
+
+`build_target`: If true, objdiff will tell the build system to build the target objects before diffing (e.g.
+  `make path/to/target.o`).  
+This is useful if the target objects are not built by default or can change based on project configuration or edits
+to assembly files.  
+Requires the build system to be configured properly.
+
+`watch_patterns` _(optional)_: A list of glob patterns to watch for changes.
+([Supported syntax](https://docs.rs/globset/latest/globset/#syntax))  
+If any of these files change, objdiff will automatically rebuild the objects and re-compare them.  
+If not specified, objdiff will use the default patterns listed above.
+
+`objects` _(optional)_: If specified, objdiff will display a list of objects in the sidebar for easy navigation.
+
+> `name` _(optional)_: The name of the object in the UI. If not specified, the object's `path` will be used.
+> 
+> `path`: Relative path to the object from the `target_dir` and `base_dir`.  
+> Requires `target_dir` and `base_dir` to be specified.
+> 
+> `target_path`: Path to the target object from the project root.  
+> Required if `path` is not specified.
+> 
+> `base_path`: Path to the base object from the project root.  
+> Required if `path` is not specified.
+> 
+> `reverse_fn_order` _(optional)_: Displays function symbols in reversed order.  
+Used to support MWCC's `-inline deferred` option, which reverses the order of functions in the object file.
+
+
+
+## License
 
 Licensed under either of
 
@@ -23,6 +131,5 @@ at your option.
 
 ### Contribution
 
-Unless you explicitly state otherwise, any contribution intentionally submitted
-for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any
-additional terms or conditions.
+Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as
+defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

build.rs

@@ -1,4 +1,10 @@
 use anyhow::Result;
-use vergen::{vergen, Config};
+use vergen::EmitBuilder;
 
-fn main() -> Result<()> { vergen(Config::default()) }
+fn main() -> Result<()> {
+    #[cfg(windows)]
+    {
+        winres::WindowsResource::new().set_icon("assets/icon.ico").compile()?;
+    }
+    EmitBuilder::builder().fail_on_error().all_build().all_cargo().all_git().emit()
+}

deny.toml

@@ -48,7 +48,11 @@ notice = "warn"
 # A list of advisory IDs to ignore. Note that ignored advisories will still
 # output a note when they are encountered.
 ignore = [
-    #"RUSTSEC-0000-0000",
+    "RUSTSEC-2023-0022",
+    "RUSTSEC-2023-0023",
+    "RUSTSEC-2023-0024",
+    "RUSTSEC-2023-0034",
+    "RUSTSEC-2023-0044",
 ]
 # Threshold for security vulnerabilities, any vulnerability with a CVSS score
 # lower than the range specified will be ignored. Note that ignored advisories
@@ -81,6 +85,10 @@ allow = [
     "Unicode-DFS-2016",
     "Zlib",
     "0BSD",
+    "OFL-1.1",
+    "LicenseRef-UFL-1.0",
+    "OpenSSL",
+    "GPL-3.0",
 ]
 # List of explictly disallowed licenses
 # See https://spdx.org/licenses/ for list of possible licenses
@@ -118,22 +126,22 @@ exceptions = [
 # Some crates don't have (easily) machine readable licensing information,
 # adding a clarification entry for it allows you to manually specify the
 # licensing information
-#[[licenses.clarify]]
+[[licenses.clarify]]
 # The name of the crate the clarification applies to
-#name = "ring"
+name = "ring"
 # The optional version constraint for the crate
-#version = "*"
+version = "*"
 # The SPDX expression for the license requirements of the crate
-#expression = "MIT AND ISC AND OpenSSL"
+expression = "MIT AND ISC AND OpenSSL"
 # One or more files in the crate's source used as the "source of truth" for
 # the license expression. If the contents match, the clarification will be used
 # when running the license check, otherwise the clarification will be ignored
 # and the crate will be checked normally, which may produce warnings or errors
 # depending on the rest of your configuration
-#license-files = [
+license-files = [
     # Each entry is a crate relative path, and the (opaque) hash of its contents
-    #{ path = "LICENSE", hash = 0xbd0eed23 }
-#]
+    { path = "LICENSE", hash = 0xbd0eed23 }
+]
 
 [licenses.private]
 # If true, ignores workspace crates that aren't published, or are only

src/app_config.rs

@@ -0,0 +1,96 @@
+use std::path::PathBuf;
+
+use eframe::Storage;
+use globset::Glob;
+
+use crate::app::{AppConfig, ObjectConfig, CONFIG_KEY};
+
+#[derive(Clone, serde::Deserialize, serde::Serialize)]
+pub struct AppConfigVersion {
+    pub version: u32,
+}
+
+impl Default for AppConfigVersion {
+    fn default() -> Self { Self { version: 1 } }
+}
+
+/// Deserialize the AppConfig from storage, handling upgrades from older versions.
+pub fn deserialize_config(storage: &dyn Storage) -> Option<AppConfig> {
+    let str = storage.get_string(CONFIG_KEY)?;
+    match ron::from_str::<AppConfigVersion>(&str) {
+        Ok(version) => match version.version {
+            1 => from_str::<AppConfig>(&str),
+            _ => {
+                log::warn!("Unknown config version: {}", version.version);
+                None
+            }
+        },
+        Err(e) => {
+            log::warn!("Failed to decode config version: {e}");
+            // Try to decode as v0
+            from_str::<AppConfigV0>(&str).map(|c| c.into_config())
+        }
+    }
+}
+
+fn from_str<T>(str: &str) -> Option<T>
+where T: serde::de::DeserializeOwned {
+    match ron::from_str(str) {
+        Ok(config) => Some(config),
+        Err(err) => {
+            log::warn!("Failed to decode config: {err}");
+            None
+        }
+    }
+}
+
+#[derive(serde::Deserialize, serde::Serialize)]
+pub struct ObjectConfigV0 {
+    pub name: String,
+    pub target_path: PathBuf,
+    pub base_path: PathBuf,
+    pub reverse_fn_order: Option<bool>,
+}
+
+impl ObjectConfigV0 {
+    fn into_config(self) -> ObjectConfig {
+        ObjectConfig {
+            name: self.name,
+            target_path: Some(self.target_path),
+            base_path: Some(self.base_path),
+            reverse_fn_order: self.reverse_fn_order,
+            complete: None,
+        }
+    }
+}
+
+#[derive(serde::Deserialize, serde::Serialize)]
+pub struct AppConfigV0 {
+    pub custom_make: Option<String>,
+    pub selected_wsl_distro: Option<String>,
+    pub project_dir: Option<PathBuf>,
+    pub target_obj_dir: Option<PathBuf>,
+    pub base_obj_dir: Option<PathBuf>,
+    pub selected_obj: Option<ObjectConfigV0>,
+    pub build_target: bool,
+    pub auto_update_check: bool,
+    pub watch_patterns: Vec<Glob>,
+}
+
+impl AppConfigV0 {
+    fn into_config(self) -> AppConfig {
+        log::info!("Upgrading configuration from v0");
+        AppConfig {
+            custom_make: self.custom_make,
+            selected_wsl_distro: self.selected_wsl_distro,
+            project_dir: self.project_dir,
+            target_obj_dir: self.target_obj_dir,
+            base_obj_dir: self.base_obj_dir,
+            selected_obj: self.selected_obj.map(|obj| obj.into_config()),
+            build_target: self.build_target,
+            auto_update_check: self.auto_update_check,
+            watch_patterns: self.watch_patterns,
+            ..Default::default()
+        }
+    }
+}

src/config.rs

@@ -0,0 +1,180 @@
+use std::{
+    fs::File,
+    path::{Component, Path, PathBuf},
+};
+
+use anyhow::{bail, Context, Result};
+use globset::{Glob, GlobSet, GlobSetBuilder};
+
+use crate::{app::AppConfig, views::config::DEFAULT_WATCH_PATTERNS};
+
+#[derive(Default, Clone, serde::Deserialize)]
+#[serde(default)]
+pub struct ProjectConfig {
+    pub min_version: Option<String>,
+    pub custom_make: Option<String>,
+    pub target_dir: Option<PathBuf>,
+    pub base_dir: Option<PathBuf>,
+    pub build_target: bool,
+    pub watch_patterns: Option<Vec<Glob>>,
+    #[serde(alias = "units")]
+    pub objects: Vec<ProjectObject>,
+}
+
+#[derive(Default, Clone, serde::Deserialize)]
+pub struct ProjectObject {
+    pub name: Option<String>,
+    pub path: Option<PathBuf>,
+    pub target_path: Option<PathBuf>,
+    pub base_path: Option<PathBuf>,
+    pub reverse_fn_order: Option<bool>,
+    pub complete: Option<bool>,
+}
+
+impl ProjectObject {
+    pub fn name(&self) -> &str {
+        if let Some(name) = &self.name {
+            name
+        } else if let Some(path) = &self.path {
+            path.to_str().unwrap_or("[invalid path]")
+        } else {
+            "[unknown]"
+        }
+    }
+}
+
+#[derive(Clone)]
+pub enum ProjectObjectNode {
+    File(String, ProjectObject),
+    Dir(String, Vec<ProjectObjectNode>),
+}
+
+fn find_dir<'a>(
+    name: &str,
+    nodes: &'a mut Vec<ProjectObjectNode>,
+) -> &'a mut Vec<ProjectObjectNode> {
+    if let Some(index) = nodes
+        .iter()
+        .position(|node| matches!(node, ProjectObjectNode::Dir(dir_name, _) if dir_name == name))
+    {
+        if let ProjectObjectNode::Dir(_, children) = &mut nodes[index] {
+            return children;
+        }
+    } else {
+        nodes.push(ProjectObjectNode::Dir(name.to_string(), vec![]));
+        if let Some(ProjectObjectNode::Dir(_, children)) = nodes.last_mut() {
+            return children;
+        }
+    }
+    unreachable!();
+}
+
+fn build_nodes(
+    objects: &[ProjectObject],
+    project_dir: &Path,
+    target_obj_dir: &Option<PathBuf>,
+    base_obj_dir: &Option<PathBuf>,
+) -> Vec<ProjectObjectNode> {
+    let mut nodes = vec![];
+    for object in objects {
+        let mut out_nodes = &mut nodes;
+        let path = if let Some(name) = &object.name {
+            Path::new(name)
+        } else if let Some(path) = &object.path {
+            path
+        } else {
+            continue;
+        };
+        if let Some(parent) = path.parent() {
+            for component in parent.components() {
+                if let Component::Normal(name) = component {
+                    let name = name.to_str().unwrap();
+                    out_nodes = find_dir(name, out_nodes);
+                }
+            }
+        }
+        let mut object = object.clone();
+        if let (Some(target_obj_dir), Some(path), None) =
+            (target_obj_dir, &object.path, &object.target_path)
+        {
+            object.target_path = Some(target_obj_dir.join(path));
+        } else if let Some(path) = &object.target_path {
+            object.target_path = Some(project_dir.join(path));
+        }
+        if let (Some(base_obj_dir), Some(path), None) =
+            (base_obj_dir, &object.path, &object.base_path)
+        {
+            object.base_path = Some(base_obj_dir.join(path));
+        } else if let Some(path) = &object.base_path {
+            object.base_path = Some(project_dir.join(path));
+        }
+        let filename = path.file_name().unwrap().to_str().unwrap().to_string();
+        out_nodes.push(ProjectObjectNode::File(filename, object));
+    }
+    nodes
+}
+
+pub const CONFIG_FILENAMES: [&str; 3] = ["objdiff.yml", "objdiff.yaml", "objdiff.json"];
+
+pub fn load_project_config(config: &mut AppConfig) -> Result<()> {
+    let Some(project_dir) = &config.project_dir else {
+        return Ok(());
+    };
+    if let Some(result) = try_project_config(project_dir) {
+        let project_config = result?;
+        if let Some(min_version) = &project_config.min_version {
+            let version_str = env!("CARGO_PKG_VERSION");
+            let version = semver::Version::parse(version_str).unwrap();
+            let version_req = semver::VersionReq::parse(&format!(">={min_version}"))?;
+            if !version_req.matches(&version) {
+                bail!("Project requires objdiff version {} or higher", min_version);
+            }
+        }
+        config.custom_make = project_config.custom_make;
+        config.target_obj_dir = project_config.target_dir.map(|p| project_dir.join(p));
+        config.base_obj_dir = project_config.base_dir.map(|p| project_dir.join(p));
+        config.build_target = project_config.build_target;
+        config.watch_patterns = project_config.watch_patterns.unwrap_or_else(|| {
+            DEFAULT_WATCH_PATTERNS.iter().map(|s| Glob::new(s).unwrap()).collect()
+        });
+        config.watcher_change = true;
+        config.objects = project_config.objects;
+        config.object_nodes =
+            build_nodes(&config.objects, project_dir, &config.target_obj_dir, &config.base_obj_dir);
+        config.project_config_loaded = true;
+    }
+    Ok(())
+}
+
+fn try_project_config(dir: &Path) -> Option<Result<ProjectConfig>> {
+    for filename in CONFIG_FILENAMES.iter() {
+        let config_path = dir.join(filename);
+        if config_path.is_file() {
+            return match filename.contains("json") {
+                true => Some(read_json_config(&config_path)),
+                false => Some(read_yml_config(&config_path)),
+            };
+        }
+    }
+    None
+}
+
+fn read_yml_config(config_path: &Path) -> Result<ProjectConfig> {
+    let mut reader = File::open(config_path)
+        .with_context(|| format!("Failed to open config file '{}'", config_path.display()))?;
+    Ok(serde_yaml::from_reader(&mut reader)?)
+}
+
+fn read_json_config(config_path: &Path) -> Result<ProjectConfig> {
+    let mut reader = File::open(config_path)
+        .with_context(|| format!("Failed to open config file '{}'", config_path.display()))?;
+    Ok(serde_json::from_reader(&mut reader)?)
+}
+
+pub fn build_globset(vec: &[Glob]) -> std::result::Result<GlobSet, globset::Error> {
+    let mut builder = GlobSetBuilder::new();
+    for glob in vec {
+        builder.add(glob.clone());
+    }
+    builder.build()
+}

src/diff.rs

@@ -3,7 +3,6 @@ use std::{collections::BTreeMap, mem::take};
 use anyhow::Result;
 
 use crate::{
-    app::DiffConfig,
     editops::{editops_find, LevEditType},
     obj::{
         mips, ppc, ObjArchitecture, ObjDataDiff, ObjDataDiffKind, ObjInfo, ObjInsArg,
@@ -17,14 +16,19 @@ fn no_diff_code(
     data: &[u8],
     symbol: &mut ObjSymbol,
     relocs: &[ObjReloc],
+    line_info: &Option<BTreeMap<u32, u32>>,
 ) -> Result<()> {
     let code =
         &data[symbol.section_address as usize..(symbol.section_address + symbol.size) as usize];
     let (_, ins) = match arch {
-        ObjArchitecture::PowerPc => ppc::process_code(code, symbol.address, relocs)?,
-        ObjArchitecture::Mips => {
-            mips::process_code(code, symbol.address, symbol.address + symbol.size, relocs)?
-        }
+        ObjArchitecture::PowerPc => ppc::process_code(code, symbol.address, relocs, line_info)?,
+        ObjArchitecture::Mips => mips::process_code(
+            code,
+            symbol.address,
+            symbol.address + symbol.size,
+            relocs,
+            line_info,
+        )?,
     };
 
     let mut diff = Vec::<ObjInsDiff>::new();
@@ -36,6 +40,7 @@ fn no_diff_code(
     Ok(())
 }
 
+#[allow(clippy::too_many_arguments)]
 pub fn diff_code(
     arch: ObjArchitecture,
     left_data: &[u8],
@@ -44,6 +49,8 @@ pub fn diff_code(
     right_symbol: &mut ObjSymbol,
     left_relocs: &[ObjReloc],
     right_relocs: &[ObjReloc],
+    left_line_info: &Option<BTreeMap<u32, u32>>,
+    right_line_info: &Option<BTreeMap<u32, u32>>,
 ) -> Result<()> {
     let left_code = &left_data[left_symbol.section_address as usize
         ..(left_symbol.section_address + left_symbol.size) as usize];
@@ -51,8 +58,8 @@ pub fn diff_code(
         ..(right_symbol.section_address + right_symbol.size) as usize];
     let ((left_ops, left_insts), (right_ops, right_insts)) = match arch {
         ObjArchitecture::PowerPc => (
-            ppc::process_code(left_code, left_symbol.address, left_relocs)?,
-            ppc::process_code(right_code, right_symbol.address, right_relocs)?,
+            ppc::process_code(left_code, left_symbol.address, left_relocs, left_line_info)?,
+            ppc::process_code(right_code, right_symbol.address, right_relocs, right_line_info)?,
         ),
         ObjArchitecture::Mips => (
             mips::process_code(
@@ -60,12 +67,14 @@ pub fn diff_code(
                 left_symbol.address,
                 left_symbol.address + left_symbol.size,
                 left_relocs,
+                left_line_info,
             )?,
             mips::process_code(
                 right_code,
                 right_symbol.address,
                 left_symbol.address + left_symbol.size,
                 right_relocs,
+                right_line_info,
             )?,
         ),
     };
@@ -123,7 +132,6 @@ pub fn diff_code(
                         right_diff.push(ObjInsDiff::default());
                         cur_left = left_iter.next();
                     }
-                    LevEditType::Keep => unreachable!(),
                 }
             } else {
                 break;
@@ -211,25 +219,25 @@ fn address_eq(left: &ObjSymbol, right: &ObjSymbol) -> bool {
 }
 
 fn reloc_eq(left_reloc: Option<&ObjReloc>, right_reloc: Option<&ObjReloc>) -> bool {
-    if let (Some(left), Some(right)) = (left_reloc, right_reloc) {
-        if left.kind != right.kind {
-            return false;
+    let (Some(left), Some(right)) = (left_reloc, right_reloc) else {
+        return false;
+    };
+    if left.kind != right.kind {
+        return false;
+    }
+
+    let name_matches = left.target.name == right.target.name;
+    match (&left.target_section, &right.target_section) {
+        (Some(sl), Some(sr)) => {
+            // Match if section and name or address match
+            sl == sr && (name_matches || address_eq(&left.target, &right.target))
         }
-        let name_matches = left.target.name == right.target.name;
-        match (&left.target_section, &right.target_section) {
-            (Some(sl), Some(sr)) => {
-                // Match if section and name or address match
-                sl == sr && (name_matches || address_eq(&left.target, &right.target))
-            }
-            (Some(_), None) => false,
-            (None, Some(_)) => {
-                // Match if possibly stripped weak symbol
-                name_matches && right.target.flags.0.contains(ObjSymbolFlags::Weak)
-            }
-            (None, None) => name_matches,
+        (Some(_), None) => false,
+        (None, Some(_)) => {
+            // Match if possibly stripped weak symbol
+            name_matches && right.target.flags.0.contains(ObjSymbolFlags::Weak)
         }
-    } else {
-        false
+        (None, None) => name_matches,
     }
 }
 
@@ -258,8 +266,8 @@ fn arg_eq(
                     right_diff.ins.as_ref().and_then(|i| i.reloc.as_ref()),
                 )
         }
-        ObjInsArg::MipsArg(ls) => {
-            matches!(right, ObjInsArg::MipsArg(rs) if ls == rs)
+        ObjInsArg::MipsArg(ls) | ObjInsArg::MipsArgWithBase(ls) => {
+            matches!(right, ObjInsArg::MipsArg(rs) | ObjInsArg::MipsArgWithBase(rs) if ls == rs)
         }
         ObjInsArg::BranchOffset(_) => {
             // Compare dest instruction idx after diffing
@@ -314,7 +322,7 @@ fn compare_ins(
                 let a_str = match a {
                     ObjInsArg::PpcArg(arg) => format!("{arg}"),
                     ObjInsArg::Reloc | ObjInsArg::RelocWithBase => String::new(),
-                    ObjInsArg::MipsArg(str) => str.clone(),
+                    ObjInsArg::MipsArg(str) | ObjInsArg::MipsArgWithBase(str) => str.clone(),
                     ObjInsArg::BranchOffset(arg) => format!("{arg}"),
                 };
                 let a_diff = if let Some(idx) = state.left_args_idx.get(&a_str) {
@@ -328,7 +336,7 @@ fn compare_ins(
                 let b_str = match b {
                     ObjInsArg::PpcArg(arg) => format!("{arg}"),
                     ObjInsArg::Reloc | ObjInsArg::RelocWithBase => String::new(),
-                    ObjInsArg::MipsArg(str) => str.clone(),
+                    ObjInsArg::MipsArg(str) | ObjInsArg::MipsArgWithBase(str) => str.clone(),
                     ObjInsArg::BranchOffset(arg) => format!("{arg}"),
                 };
                 let b_diff = if let Some(idx) = state.right_args_idx.get(&b_str) {
@@ -353,22 +361,29 @@ fn compare_ins(
     Ok(result)
 }
 
-fn find_section<'a>(obj: &'a mut ObjInfo, name: &str) -> Option<&'a mut ObjSection> {
-    obj.sections.iter_mut().find(|s| s.name == name)
+fn find_section_and_symbol(obj: &ObjInfo, name: &str) -> Option<(usize, usize)> {
+    for (section_idx, section) in obj.sections.iter().enumerate() {
+        let symbol_idx = match section.symbols.iter().position(|symbol| symbol.name == name) {
+            Some(symbol_idx) => symbol_idx,
+            None => continue,
+        };
+        return Some((section_idx, symbol_idx));
+    }
+    None
 }
 
-fn find_symbol<'a>(symbols: &'a mut [ObjSymbol], name: &str) -> Option<&'a mut ObjSymbol> {
-    symbols.iter_mut().find(|s| s.name == name)
-}
-
-pub fn diff_objs(left: &mut ObjInfo, right: &mut ObjInfo, _diff_config: &DiffConfig) -> Result<()> {
-    for left_section in &mut left.sections {
-        if let Some(right_section) = find_section(right, &left_section.name) {
+pub fn diff_objs(mut left: Option<&mut ObjInfo>, mut right: Option<&mut ObjInfo>) -> Result<()> {
+    if let Some(left) = left.as_mut() {
+        for left_section in &mut left.sections {
             if left_section.kind == ObjSectionKind::Code {
                 for left_symbol in &mut left_section.symbols {
-                    if let Some(right_symbol) =
-                        find_symbol(&mut right_section.symbols, &left_symbol.name)
+                    if let Some((right, (right_section_idx, right_symbol_idx))) =
+                        right.as_mut().and_then(|obj| {
+                            find_section_and_symbol(obj, &left_symbol.name).map(|s| (obj, s))
+                        })
                     {
+                        let right_section = &mut right.sections[right_section_idx];
+                        let right_symbol = &mut right_section.symbols[right_symbol_idx];
                         left_symbol.diff_symbol = Some(right_symbol.name.clone());
                         right_symbol.diff_symbol = Some(left_symbol.name.clone());
                         diff_code(
@@ -379,6 +394,8 @@ pub fn diff_objs(left: &mut ObjInfo, right: &mut ObjInfo, _diff_config: &DiffCon
                             right_symbol,
                             &left_section.relocations,
                             &right_section.relocations,
+                            &left.line_info,
+                            &right.line_info,
                         )?;
                     } else {
                         no_diff_code(
@@ -386,34 +403,55 @@ pub fn diff_objs(left: &mut ObjInfo, right: &mut ObjInfo, _diff_config: &DiffCon
                             &left_section.data,
                             left_symbol,
                             &left_section.relocations,
+                            &left.line_info,
                         )?;
                     }
                 }
-                for right_symbol in &mut right_section.symbols {
-                    if right_symbol.instructions.is_empty() {
-                        no_diff_code(
-                            left.architecture,
-                            &right_section.data,
-                            right_symbol,
-                            &right_section.relocations,
-                        )?;
-                    }
+            } else if let Some(right_section) = right
+                .as_mut()
+                .and_then(|obj| obj.sections.iter_mut().find(|s| s.name == left_section.name))
+            {
+                if left_section.kind == ObjSectionKind::Data {
+                    diff_data(left_section, right_section);
+                    // diff_data_symbols(left_section, right_section)?;
+                } else if left_section.kind == ObjSectionKind::Bss {
+                    diff_bss_symbols(&mut left_section.symbols, &mut right_section.symbols)?;
                 }
             } else if left_section.kind == ObjSectionKind::Data {
-                diff_data(left_section, right_section);
-                // diff_data_symbols(left_section, right_section)?;
-            } else if left_section.kind == ObjSectionKind::Bss {
-                diff_bss_symbols(&mut left_section.symbols, &mut right_section.symbols)?;
+                no_diff_data(left_section);
             }
         }
     }
-    diff_bss_symbols(&mut left.common, &mut right.common)?;
+    if let Some(right) = right.as_mut() {
+        for right_section in right.sections.iter_mut() {
+            if right_section.kind == ObjSectionKind::Code {
+                for right_symbol in &mut right_section.symbols {
+                    if right_symbol.instructions.is_empty() {
+                        no_diff_code(
+                            right.architecture,
+                            &right_section.data,
+                            right_symbol,
+                            &right_section.relocations,
+                            &right.line_info,
+                        )?;
+                    }
+                }
+            } else if right_section.kind == ObjSectionKind::Data
+                && right_section.data_diff.is_empty()
+            {
+                no_diff_data(right_section);
+            }
+        }
+    }
+    if let (Some(left), Some(right)) = (left, right) {
+        diff_bss_symbols(&mut left.common, &mut right.common)?;
+    }
     Ok(())
 }
 
 fn diff_bss_symbols(left_symbols: &mut [ObjSymbol], right_symbols: &mut [ObjSymbol]) -> Result<()> {
     for left_symbol in left_symbols {
-        if let Some(right_symbol) = find_symbol(right_symbols, &left_symbol.name) {
+        if let Some(right_symbol) = right_symbols.iter_mut().find(|s| s.name == left_symbol.name) {
             left_symbol.diff_symbol = Some(right_symbol.name.clone());
             right_symbol.diff_symbol = Some(left_symbol.name.clone());
             let percent = if left_symbol.size == right_symbol.size { 100.0 } else { 50.0 };
@@ -500,13 +538,12 @@ fn diff_data(left: &mut ObjSection, right: &mut ObjSection) {
     let mut right_diff = Vec::<ObjDataDiff>::new();
     let mut left_cur = 0usize;
     let mut right_cur = 0usize;
-    let mut cur_op = LevEditType::Keep;
+    let mut cur_op = LevEditType::Replace;
     let mut cur_left_data = Vec::<u8>::new();
     let mut cur_right_data = Vec::<u8>::new();
     for op in edit_ops {
         if cur_op != op.op_type || left_cur < op.first_start || right_cur < op.second_start {
             match cur_op {
-                LevEditType::Keep => {}
                 LevEditType::Replace => {
                     let left_data = take(&mut cur_left_data);
                     let right_data = take(&mut cur_right_data);
@@ -592,7 +629,6 @@ fn diff_data(left: &mut ObjSection, right: &mut ObjSection) {
                 cur_left_data.push(left.data[left_cur]);
                 left_cur += 1;
             }
-            LevEditType::Keep => unreachable!(),
         }
         cur_op = op.op_type;
     }
@@ -616,7 +652,6 @@ fn diff_data(left: &mut ObjSection, right: &mut ObjSection) {
 
     // TODO: merge with above
     match cur_op {
-        LevEditType::Keep => {}
         LevEditType::Replace => {
             let left_data = take(&mut cur_left_data);
             let right_data = take(&mut cur_right_data);
@@ -689,3 +724,12 @@ fn diff_data(left: &mut ObjSection, right: &mut ObjSection) {
     left.data_diff = left_diff;
     right.data_diff = right_diff;
 }
+
+fn no_diff_data(section: &mut ObjSection) {
+    section.data_diff = vec![ObjDataDiff {
+        data: section.data.clone(),
+        kind: ObjDataDiffKind::None,
+        len: section.data.len(),
+        symbol: String::new(),
+    }];
+}

src/editops.rs

@@ -27,7 +27,6 @@
 
 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 pub enum LevEditType {
-    Keep,
     Replace,
     Insert,
     Delete,
@@ -40,25 +39,15 @@ pub struct LevEditOp {
     pub second_start: usize,  /* destination position */
 }
 
-#[derive(Debug, PartialEq, Eq)]
-pub struct LevMatchingBlock {
-    pub first_start: usize,
-    pub second_start: usize,
-    pub len: usize,
-}
-
 pub fn editops_find<T>(query: &[T], choice: &[T]) -> Vec<LevEditOp>
 where T: PartialEq {
-    let string_affix = Affix::find(query, choice);
+    let Affix { prefix_len, suffix_len } = Affix::find(query, choice);
 
-    let first_string_len = string_affix.first_string_len;
-    let second_string_len = string_affix.second_string_len;
-    let prefix_len = string_affix.prefix_len;
-    let first_string = &query[prefix_len..prefix_len + first_string_len];
-    let second_string = &choice[prefix_len..prefix_len + second_string_len];
+    let first_string = &query[prefix_len..query.len() - suffix_len];
+    let second_string = &choice[prefix_len..choice.len() - suffix_len];
 
-    let matrix_columns = first_string_len + 1;
-    let matrix_rows = second_string_len + 1;
+    let matrix_columns = first_string.len() + 1;
+    let matrix_rows = second_string.len() + 1;
 
     // TODO maybe use an actual matrix for readability
     let mut cache_matrix: Vec<usize> = vec![0; matrix_rows * matrix_columns];
@@ -87,98 +76,66 @@ where T: PartialEq {
             cache_matrix[current + 1 + p] = x;
         }
     }
-    editops_from_cost_matrix(
-        first_string,
-        second_string,
-        matrix_columns,
-        matrix_rows,
-        prefix_len,
-        cache_matrix,
-    )
+    editops_from_cost_matrix(matrix_columns, matrix_rows, prefix_len, cache_matrix)
 }
 
-fn editops_from_cost_matrix<T>(
-    string1: &[T],
-    string2: &[T],
+fn editops_from_cost_matrix(
     len1: usize,
     len2: usize,
     prefix_len: usize,
     cache_matrix: Vec<usize>,
-) -> Vec<LevEditOp>
-where
-    T: PartialEq,
-{
+) -> Vec<LevEditOp> {
+    let mut ops = Vec::with_capacity(cache_matrix[len1 * len2 - 1]);
     let mut dir = 0;
-
-    let mut ops: Vec<LevEditOp> = vec![];
-    ops.reserve(cache_matrix[len1 * len2 - 1]);
-
     let mut i = len1 - 1;
     let mut j = len2 - 1;
     let mut p = len1 * len2 - 1;
 
-    // let string1_chars: Vec<char> = string1.chars().collect();
-    // let string2_chars: Vec<char> = string2.chars().collect();
-
     //TODO this is still pretty ugly
     while i > 0 || j > 0 {
         let current_value = cache_matrix[p];
 
-        let op_type;
+        // More than one operation can be possible at a time. We use `dir` to
+        // decide when ambiguous.
+        let is_insert = j > 0 && current_value == cache_matrix[p - 1] + 1;
+        let is_delete = i > 0 && current_value == cache_matrix[p - len2] + 1;
+        let is_replace = i > 0 && j > 0 && current_value == cache_matrix[p - len2 - 1] + 1;
 
-        if dir == -1 && j > 0 && current_value == cache_matrix[p - 1] + 1 {
-            op_type = LevEditType::Insert;
-        } else if dir == 1 && i > 0 && current_value == cache_matrix[p - len2] + 1 {
-            op_type = LevEditType::Delete;
-        } else if i > 0
-            && j > 0
-            && current_value == cache_matrix[p - len2 - 1]
-            && string1[i - 1] == string2[j - 1]
-        {
-            op_type = LevEditType::Keep;
-        } else if i > 0 && j > 0 && current_value == cache_matrix[p - len2 - 1] + 1 {
-            op_type = LevEditType::Replace;
-        }
-        /* we can't turn directly from -1 to 1, in this case it would be better
-         * to go diagonally, but check it (dir == 0) */
-        else if dir == 0 && j > 0 && current_value == cache_matrix[p - 1] + 1 {
-            op_type = LevEditType::Insert;
-        } else if dir == 0 && i > 0 && current_value == cache_matrix[p - len2] + 1 {
-            op_type = LevEditType::Delete;
-        } else {
-            panic!("something went terribly wrong");
-        }
-
-        match op_type {
-            LevEditType::Insert => {
-                j -= 1;
-                p -= 1;
-                dir = -1;
-            }
-            LevEditType::Delete => {
-                i -= 1;
-                p -= len2;
-                dir = 1;
-            }
-            LevEditType::Replace => {
-                i -= 1;
-                j -= 1;
-                p -= len2 + 1;
-                dir = 0;
-            }
-            LevEditType::Keep => {
-                i -= 1;
-                j -= 1;
-                p -= len2 + 1;
-                dir = 0;
-                /* LevEditKeep does not has to be stored */
-                continue;
-            }
+        let (op_type, new_dir) = match (dir, is_insert, is_delete, is_replace) {
+            (_, false, false, false) => (None, 0),
+            (-1, true, _, _) => (Some(LevEditType::Insert), -1),
+            (1, _, true, _) => (Some(LevEditType::Delete), 1),
+            (_, _, _, true) => (Some(LevEditType::Replace), 0),
+            (0, true, _, _) => (Some(LevEditType::Insert), -1),
+            (0, _, true, _) => (Some(LevEditType::Delete), 1),
+            _ => panic!("something went terribly wrong"),
         };
 
-        let edit_op =
-            LevEditOp { op_type, first_start: i + prefix_len, second_start: j + prefix_len };
-        ops.insert(0, edit_op);
+        match new_dir {
+            -1 => {
+                j -= 1;
+                p -= 1;
+            }
+            1 => {
+                i -= 1;
+                p -= len2;
+            }
+            0 => {
+                i -= 1;
+                j -= 1;
+                p -= len2 + 1;
+            }
+            _ => panic!("something went terribly wrong"),
+        };
+        dir = new_dir;
+
+        if let Some(op_type) = op_type {
+            ops.insert(0, LevEditOp {
+                op_type,
+                first_start: i + prefix_len,
+                second_start: j + prefix_len,
+            });
+        }
     }
 
     ops
@@ -186,73 +143,20 @@ where
 
 pub struct Affix {
     pub prefix_len: usize,
-    pub first_string_len: usize,
-    pub second_string_len: usize,
+    pub suffix_len: usize,
 }
 
 impl Affix {
-    pub fn find<T>(first_string: &[T], second_string: &[T]) -> Affix
+    pub fn find<T>(s1: &[T], s2: &[T]) -> Affix
     where T: PartialEq {
-        // remove common prefix and suffix (linear vs square runtime for levensthein)
-        let mut first_iter = first_string.iter();
-        let mut second_iter = second_string.iter();
+        let prefix_len = s1.iter().zip(s2.iter()).take_while(|t| t.0 == t.1).count();
+        let suffix_len = s1[prefix_len..]
+            .iter()
+            .rev()
+            .zip(s2[prefix_len..].iter().rev())
+            .take_while(|t| t.0 == t.1)
+            .count();
 
-        let mut limit_start = 0;
-
-        let mut first_iter_char = first_iter.next();
-        let mut second_iter_char = second_iter.next();
-        while first_iter_char.is_some() && first_iter_char == second_iter_char {
-            first_iter_char = first_iter.next();
-            second_iter_char = second_iter.next();
-            limit_start += 1;
-        }
-
-        // save char since the iterator was already consumed
-        let first_iter_cache = first_iter_char;
-        let second_iter_cache = second_iter_char;
-
-        if second_iter_char.is_some() && first_iter_char.is_some() {
-            first_iter_char = first_iter.next_back();
-            second_iter_char = second_iter.next_back();
-            while first_iter_char.is_some() && first_iter_char == second_iter_char {
-                first_iter_char = first_iter.next_back();
-                second_iter_char = second_iter.next_back();
-            }
-        }
-
-        match (first_iter_char, second_iter_char) {
-            (None, None) => {
-                // characters might not match even though they were consumed
-                let remaining_char = (first_iter_cache != second_iter_cache) as usize;
-                Affix {
-                    prefix_len: limit_start,
-                    first_string_len: remaining_char,
-                    second_string_len: remaining_char,
-                }
-            }
-            (None, _) => {
-                let remaining_char =
-                    (first_iter_cache.is_some() && first_iter_cache != second_iter_char) as usize;
-                Affix {
-                    prefix_len: limit_start,
-                    first_string_len: remaining_char,
-                    second_string_len: second_iter.count() + 1 + remaining_char,
-                }
-            }
-            (_, None) => {
-                let remaining_char =
-                    (second_iter_cache.is_some() && second_iter_cache != first_iter_char) as usize;
-                Affix {
-                    prefix_len: limit_start,
-                    first_string_len: first_iter.count() + 1 + remaining_char,
-                    second_string_len: remaining_char,
-                }
-            }
-            _ => Affix {
-                prefix_len: limit_start,
-                first_string_len: first_iter.count() + 2,
-                second_string_len: second_iter.count() + 2,
-            },
-        }
+        Affix { prefix_len, suffix_len }
     }
 }

src/jobs/bindiff.rs

@@ -1,44 +0,0 @@
-use std::sync::{mpsc::Receiver, Arc, RwLock};
-
-use anyhow::{Error, Result};
-
-use crate::{
-    app::{AppConfig, DiffConfig},
-    diff::diff_objs,
-    jobs::{queue_job, update_status, Job, JobResult, JobState, Status},
-    obj::{elf, ObjInfo},
-};
-
-pub struct BinDiffResult {
-    pub first_obj: ObjInfo,
-    pub second_obj: ObjInfo,
-}
-
-fn run_build(
-    status: &Status,
-    cancel: Receiver<()>,
-    config: Arc<RwLock<AppConfig>>,
-) -> Result<Box<BinDiffResult>> {
-    let config = config.read().map_err(|_| Error::msg("Failed to lock app config"))?.clone();
-    let target_path =
-        config.left_obj.as_ref().ok_or_else(|| Error::msg("Missing target obj path"))?;
-    let base_path = config.right_obj.as_ref().ok_or_else(|| Error::msg("Missing base obj path"))?;
-
-    update_status(status, "Loading target obj".to_string(), 0, 3, &cancel)?;
-    let mut left_obj = elf::read(target_path)?;
-
-    update_status(status, "Loading base obj".to_string(), 1, 3, &cancel)?;
-    let mut right_obj = elf::read(base_path)?;
-
-    update_status(status, "Performing diff".to_string(), 2, 3, &cancel)?;
-    diff_objs(&mut left_obj, &mut right_obj, &DiffConfig::default() /* TODO */)?;
-
-    update_status(status, "Complete".to_string(), 3, 3, &cancel)?;
-    Ok(Box::new(BinDiffResult { first_obj: left_obj, second_obj: right_obj }))
-}
-
-pub fn queue_bindiff(config: Arc<RwLock<AppConfig>>) -> JobState {
-    queue_job("Binary diff", Job::BinDiff, move |status, cancel| {
-        run_build(status, cancel, config).map(JobResult::BinDiff)
-    })
-}

src/jobs/check_update.rs

@@ -4,7 +4,7 @@ use anyhow::{Context, Result};
 use self_update::{cargo_crate_version, update::Release};
 
 use crate::{
-    jobs::{queue_job, update_status, Job, JobResult, JobState, Status},
+    jobs::{start_job, update_status, Job, JobResult, JobState, JobStatusRef},
     update::{build_updater, BIN_NAME},
 };
 
@@ -14,7 +14,7 @@ pub struct CheckUpdateResult {
     pub found_binary: bool,
 }
 
-fn run_check_update(status: &Status, cancel: Receiver<()>) -> Result<Box<CheckUpdateResult>> {
+fn run_check_update(status: &JobStatusRef, cancel: Receiver<()>) -> Result<Box<CheckUpdateResult>> {
     update_status(status, "Fetching latest release".to_string(), 0, 1, &cancel)?;
     let updater = build_updater().context("Failed to create release updater")?;
     let latest_release = updater.get_latest_release()?;
@@ -26,8 +26,8 @@ fn run_check_update(status: &Status, cancel: Receiver<()>) -> Result<Box<CheckUp
     Ok(Box::new(CheckUpdateResult { update_available, latest_release, found_binary }))
 }
 
-pub fn queue_check_update() -> JobState {
-    queue_job("Check for updates", Job::CheckUpdate, move |status, cancel| {
-        run_check_update(status, cancel).map(JobResult::CheckUpdate)
+pub fn start_check_update() -> JobState {
+    start_job("Check for updates", Job::CheckUpdate, move |status, cancel| {
+        run_check_update(status, cancel).map(|result| JobResult::CheckUpdate(Some(result)))
     })
 }

src/jobs/mod.rs

@@ -9,12 +9,8 @@ use std::{
 
 use anyhow::Result;
 
-use crate::jobs::{
-    bindiff::BinDiffResult, check_update::CheckUpdateResult, objdiff::ObjDiffResult,
-    update::UpdateResult,
-};
+use crate::jobs::{check_update::CheckUpdateResult, objdiff::ObjDiffResult, update::UpdateResult};
 
-pub mod bindiff;
 pub mod check_update;
 pub mod objdiff;
 pub mod update;
@@ -22,19 +18,88 @@ pub mod update;
 #[derive(Debug, Eq, PartialEq, Copy, Clone)]
 pub enum Job {
     ObjDiff,
-    BinDiff,
     CheckUpdate,
     Update,
 }
 pub static JOB_ID: AtomicUsize = AtomicUsize::new(0);
+
+#[derive(Default)]
+pub struct JobQueue {
+    pub jobs: Vec<JobState>,
+    pub results: Vec<JobResult>,
+}
+
+impl JobQueue {
+    /// Adds a job to the queue.
+    #[inline]
+    pub fn push(&mut self, state: JobState) { self.jobs.push(state); }
+
+    /// Adds a job to the queue if a job of the given kind is not already running.
+    #[inline]
+    pub fn push_once(&mut self, job: Job, func: impl FnOnce() -> JobState) {
+        if !self.is_running(job) {
+            self.push(func());
+        }
+    }
+
+    /// Returns whether a job of the given kind is running.
+    pub fn is_running(&self, kind: Job) -> bool {
+        self.jobs.iter().any(|j| j.kind == kind && j.handle.is_some())
+    }
+
+    /// Returns whether any job is running.
+    pub fn any_running(&self) -> bool {
+        self.jobs.iter().any(|job| {
+            if let Some(handle) = &job.handle {
+                return !handle.is_finished();
+            }
+            false
+        })
+    }
+
+    /// Iterates over all jobs mutably.
+    pub fn iter_mut(&mut self) -> impl Iterator<Item = &mut JobState> + '_ { self.jobs.iter_mut() }
+
+    /// Iterates over all finished jobs, returning the job state and the result.
+    pub fn iter_finished(
+        &mut self,
+    ) -> impl Iterator<Item = (&mut JobState, std::thread::Result<JobResult>)> + '_ {
+        self.jobs.iter_mut().filter_map(|job| {
+            if let Some(handle) = &job.handle {
+                if !handle.is_finished() {
+                    return None;
+                }
+                let result = job.handle.take().unwrap().join();
+                return Some((job, result));
+            }
+            None
+        })
+    }
+
+    /// Clears all finished jobs.
+    pub fn clear_finished(&mut self) {
+        self.jobs.retain(|job| {
+            !(job.should_remove
+                && job.handle.is_none()
+                && job.status.read().unwrap().error.is_none())
+        });
+    }
+
+    /// Removes a job from the queue given its ID.
+    pub fn remove(&mut self, id: usize) { self.jobs.retain(|job| job.id != id); }
+}
+
+pub type JobStatusRef = Arc<RwLock<JobStatus>>;
+
 pub struct JobState {
     pub id: usize,
-    pub job_type: Job,
+    pub kind: Job,
     pub handle: Option<JoinHandle<JobResult>>,
-    pub status: Arc<RwLock<JobStatus>>,
+    pub status: JobStatusRef,
     pub cancel: Sender<()>,
     pub should_remove: bool,
 }
+
 #[derive(Default)]
 pub struct JobStatus {
     pub title: String,
@@ -43,11 +108,11 @@ pub struct JobStatus {
     pub status: String,
     pub error: Option<anyhow::Error>,
 }
+
 pub enum JobResult {
     None,
-    ObjDiff(Box<ObjDiffResult>),
-    BinDiff(Box<BinDiffResult>),
-    CheckUpdate(Box<CheckUpdateResult>),
+    ObjDiff(Option<Box<ObjDiffResult>>),
+    CheckUpdate(Option<Box<CheckUpdateResult>>),
     Update(Box<UpdateResult>),
 }
 
@@ -58,12 +123,10 @@ fn should_cancel(rx: &Receiver<()>) -> bool {
     }
 }
 
-type Status = Arc<RwLock<JobStatus>>;
-
-fn queue_job(
+fn start_job(
     title: &str,
-    job_type: Job,
-    run: impl FnOnce(&Status, Receiver<()>) -> Result<JobResult> + Send + 'static,
+    kind: Job,
+    run: impl FnOnce(&JobStatusRef, Receiver<()>) -> Result<JobResult> + Send + 'static,
 ) -> JobState {
     let status = Arc::new(RwLock::new(JobStatus {
         title: title.to_string(),
@@ -89,7 +152,7 @@ fn queue_job(
     log::info!("Started job {}", id);
     JobState {
         id,
-        job_type,
+        kind,
         handle: Some(handle),
         status: status_clone,
         cancel: tx,
@@ -98,7 +161,7 @@ fn queue_job(
 }
 
 fn update_status(
-    status: &Status,
+    status: &JobStatusRef,
     str: String,
     count: u32,
     total: u32,

src/jobs/objdiff.rs

@@ -1,17 +1,12 @@
-use std::{
-    path::Path,
-    process::Command,
-    str::from_utf8,
-    sync::{mpsc::Receiver, Arc, RwLock},
-};
+use std::{path::Path, process::Command, str::from_utf8, sync::mpsc::Receiver};
 
-use anyhow::{Context, Error, Result};
+use anyhow::{anyhow, Context, Error, Result};
 use time::OffsetDateTime;
 
 use crate::{
-    app::{AppConfig, DiffConfig},
+    app::{AppConfig, AppConfigRef},
     diff::diff_objs,
-    jobs::{queue_job, update_status, Job, JobResult, JobState, Status},
+    jobs::{start_job, update_status, Job, JobResult, JobState, JobStatusRef},
     obj::{elf, ObjInfo},
 };
 
@@ -76,68 +71,116 @@ fn run_make(cwd: &Path, arg: &Path, config: &AppConfig) -> BuildStatus {
 }
 
 fn run_build(
-    status: &Status,
+    status: &JobStatusRef,
     cancel: Receiver<()>,
-    config: Arc<RwLock<AppConfig>>,
-    diff_config: DiffConfig,
+    config: AppConfigRef,
 ) -> Result<Box<ObjDiffResult>> {
     let config = config.read().map_err(|_| Error::msg("Failed to lock app config"))?.clone();
-    let obj_path = config.obj_path.as_ref().ok_or_else(|| Error::msg("Missing obj path"))?;
+    let obj_config = config.selected_obj.as_ref().ok_or_else(|| Error::msg("Missing obj path"))?;
     let project_dir =
         config.project_dir.as_ref().ok_or_else(|| Error::msg("Missing project dir"))?;
-    let mut target_path = config
-        .target_obj_dir
-        .as_ref()
-        .ok_or_else(|| Error::msg("Missing target obj dir"))?
-        .to_owned();
-    target_path.push(obj_path);
-    let mut base_path =
-        config.base_obj_dir.as_ref().ok_or_else(|| Error::msg("Missing base obj dir"))?.to_owned();
-    base_path.push(obj_path);
-    let target_path_rel = target_path
-        .strip_prefix(project_dir)
-        .context("Failed to create relative target obj path")?;
-    let base_path_rel =
-        base_path.strip_prefix(project_dir).context("Failed to create relative base obj path")?;
+    let target_path_rel = if let Some(target_path) = &obj_config.target_path {
+        Some(target_path.strip_prefix(project_dir).map_err(|_| {
+            anyhow!(
+                "Target path '{}' doesn't begin with '{}'",
+                target_path.display(),
+                project_dir.display()
+            )
+        })?)
+    } else {
+        None
+    };
+    let base_path_rel = if let Some(base_path) = &obj_config.base_path {
+        Some(base_path.strip_prefix(project_dir).map_err(|_| {
+            anyhow!(
+                "Base path '{}' doesn't begin with '{}'",
+                base_path.display(),
+                project_dir.display()
+            )
+        })?)
+    } else {
+        None
+    };
 
-    let total = if config.build_target { 5 } else { 4 };
-    let first_status = if config.build_target {
-        update_status(status, format!("Building target {obj_path}"), 0, total, &cancel)?;
-        run_make(project_dir, target_path_rel, &config)
+    let mut total = 3;
+    if config.build_target && target_path_rel.is_some() {
+        total += 1;
+    }
+    if base_path_rel.is_some() {
+        total += 1;
+    }
+    let first_status = match target_path_rel {
+        Some(target_path_rel) if config.build_target => {
+            update_status(
+                status,
+                format!("Building target {}", target_path_rel.display()),
+                0,
+                total,
+                &cancel,
+            )?;
+            run_make(project_dir, target_path_rel, &config)
+        }
+        _ => BuildStatus { success: true, log: String::new() },
+    };
+
+    let second_status = if let Some(base_path_rel) = base_path_rel {
+        update_status(
+            status,
+            format!("Building base {}", base_path_rel.display()),
+            1,
+            total,
+            &cancel,
+        )?;
+        run_make(project_dir, base_path_rel, &config)
     } else {
         BuildStatus { success: true, log: String::new() }
     };
 
-    update_status(status, format!("Building base {obj_path}"), 1, total, &cancel)?;
-    let second_status = run_make(project_dir, base_path_rel, &config);
-
     let time = OffsetDateTime::now_utc();
 
-    let mut first_obj = if first_status.success {
-        update_status(status, format!("Loading target {obj_path}"), 2, total, &cancel)?;
-        Some(elf::read(&target_path)?)
-    } else {
-        None
+    let mut first_obj =
+        match &obj_config.target_path {
+            Some(target_path) if first_status.success => {
+                update_status(
+                    status,
+                    format!("Loading target {}", target_path_rel.unwrap().display()),
+                    2,
+                    total,
+                    &cancel,
+                )?;
+                Some(elf::read(target_path).with_context(|| {
+                    format!("Failed to read object '{}'", target_path.display())
+                })?)
+            }
+            _ => None,
+        };
+
+    let mut second_obj = match &obj_config.base_path {
+        Some(base_path) if second_status.success => {
+            update_status(
+                status,
+                format!("Loading base {}", base_path_rel.unwrap().display()),
+                3,
+                total,
+                &cancel,
+            )?;
+            Some(
+                elf::read(base_path)
+                    .with_context(|| format!("Failed to read object '{}'", base_path.display()))?,
+            )
+        }
+        _ => None,
     };
 
-    let mut second_obj = if second_status.success {
-        update_status(status, format!("Loading base {obj_path}"), 3, total, &cancel)?;
-        Some(elf::read(&base_path)?)
-    } else {
-        None
-    };
-
-    if let (Some(first_obj), Some(second_obj)) = (&mut first_obj, &mut second_obj) {
-        update_status(status, "Performing diff".to_string(), 4, total, &cancel)?;
-        diff_objs(first_obj, second_obj, &diff_config)?;
-    }
+    update_status(status, "Performing diff".to_string(), 4, total, &cancel)?;
+    diff_objs(first_obj.as_mut(), second_obj.as_mut())?;
 
     update_status(status, "Complete".to_string(), total, total, &cancel)?;
     Ok(Box::new(ObjDiffResult { first_status, second_status, first_obj, second_obj, time }))
 }
 
-pub fn queue_build(config: Arc<RwLock<AppConfig>>, diff_config: DiffConfig) -> JobState {
-    queue_job("Object diff", Job::ObjDiff, move |status, cancel| {
-        run_build(status, cancel, config, diff_config).map(JobResult::ObjDiff)
+pub fn start_build(config: AppConfigRef) -> JobState {
+    start_job("Object diff", Job::ObjDiff, move |status, cancel| {
+        run_build(status, cancel, config).map(|result| JobResult::ObjDiff(Some(result)))
     })
 }