Merge pull request 'feat(git): make fetch command asynchronous for improved performance' (#11) from bug/blocking_ui into master

Reviewed-on: #11

.claude/settings.local.json

@@ -71,7 +71,14 @@
       "Bash(echo \"EXIT:$?\")",
       "Bash(ls target/)",
       "Bash(rustup target *)",
-      "Bash(echo \"exit code: $?\")"
+      "Bash(echo \"exit code: $?\")",
+      "Read(//home/cbr/.cargo/registry/src/**)",
+      "Bash(find / -maxdepth 6 -iname \"mistralrs-*\" -type d)",
+      "Bash(grep -A2 '^name = \"tauri\"$' \"/mnt/c/Users/cbr/Desktop/Neuer Ordner \\(6\\)/src-tauri/Cargo.lock\")",
+      "Bash(rustfmt --edition 2024 --check src/badge.rs src/main.rs)",
+      "Bash(rustfmt --edition 2024 --check src/git.rs)",
+      "Bash(rustfmt --edition 2024 --check src/badge.rs)",
+      "Bash(rustfmt --edition 2024 --check src/git.rs src/main.rs)"
     ]
   }
 }

README.md

@@ -1,45 +1 @@
-# Tauri Git Lite
 
-Eine kleine Git-Desktop-App mit Tauri, Rust und Svelte.
-
-## Funktionen
-
-- Repository per lokalem Pfad öffnen
-- aktuellen Branch, Upstream, Ahead/Behind und Arbeitsbaumstatus anzeigen
-- Branches auflisten und auschecken
-- Branches in den aktuellen Branch mergen
-- Commit-History mit geänderten Dateien anzeigen
-- Explorer-Ansicht mit Ordnerbaum sowie getrackten und ungetrackten Dateien
-- Datei- und Ordner-History direkt aus dem Explorer anzeigen
-- einzelne Dateien stagen, unstagen und wiederherstellen
-- einzelne Dateien oder ganze Ordner aus einem History-Commit wiederherstellen
-- aktuellen Branch auf einen ausgewählten Commit zurücksetzen
-- Commit mit Message erstellen
-- Pull mit Fast-Forward-Strategie
-- Push auf den konfigurierten Upstream
-
-## Entwicklung
-
-```powershell
-npm install
-npm run tauri:dev
-```
-
-Frontend allein:
-
-```powershell
-npm run dev
-```
-
-Checks:
-
-```powershell
-npm run check
-npm run build
-cd src-tauri
-cargo check
-```
-
-## Hinweis
-
-Die App nutzt das lokal installierte `git` CLI. Ein Repository muss daher bereits auf der Maschine vorhanden sein, und Push/Pull verwenden die Credentials, die Git lokal kennt.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "tauri-git-lite",
-  "version": "2026.7.6",
+  "version": "2026.7.9",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "tauri-git-lite",
-      "version": "2026.7.6",
+      "version": "2026.7.9",
       "dependencies": {
         "@lucide/svelte": "^1.21.0",
         "@tailwindcss/vite": "^4.3.1",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "git-lite",
-  "version": "2026.7.6",
+  "version": "2026.7.9",
   "private": true,
   "type": "module",
   "scripts": {

src-tauri/crates/commit_ai/src/cloud.rs

@@ -2,7 +2,7 @@ use std::time::Duration;
 
 use serde::{Deserialize, Serialize};
 
-use crate::{build_messages, sanitize_message};
+use crate::{build_messages, looks_like_diff_echo, sanitize_message};
 
 // Generous sizing so a detailed body with bullet points isn't cut off.
 const DEFAULT_MAX_TOKENS: u32 = 1500;
@@ -56,8 +56,14 @@ async fn openai_compatible_request(
     let body = OpenAiRequest {
         model: model.to_string(),
         messages: vec![
-            OpenAiMessage { role: "system", content: system },
+            OpenAiMessage {
-            OpenAiMessage { role: "user", content: user },
+                role: "system",
+                content: system,
+            },
+            OpenAiMessage {
+                role: "user",
+                content: user,
+            },
         ],
         temperature: 0.3,
     };
@@ -82,17 +88,22 @@ async fn openai_compatible_request(
         return Err(format!("API error ({status}): {text}"));
     }
 
-    let parsed: OpenAiResponse = serde_json::from_str(&text)
+    let parsed: OpenAiResponse =
-        .map_err(|err| format!("Could not process response: {err}"))?;
+        serde_json::from_str(&text).map_err(|err| format!("Could not process response: {err}"))?;
 
-    parsed
+    let message = parsed
         .choices
         .into_iter()
         .next()
         .and_then(|choice| choice.message.content)
         .map(|content| sanitize_message(&content))
         .filter(|content| !content.is_empty())
-        .ok_or_else(|| "The model did not return a response.".to_string())
+        .ok_or_else(|| "The model did not return a response.".to_string())?;
+
+    if looks_like_diff_echo(&message) {
+        return Err("The model returned the diff instead of a commit message.".to_string());
+    }
+    Ok(message)
 }
 
 pub async fn generate_openai(
@@ -168,7 +179,10 @@ pub async fn generate_anthropic(
         model: model.to_string(),
         max_tokens: DEFAULT_MAX_TOKENS,
         system,
-        messages: vec![AnthropicMessage { role: "user", content: user }],
+        messages: vec![AnthropicMessage {
+            role: "user",
+            content: user,
+        }],
     };
 
     let client = http_client()?;
@@ -190,14 +204,19 @@ pub async fn generate_anthropic(
         return Err(format!("API error ({status}): {text}"));
     }
 
-    let parsed: AnthropicResponse = serde_json::from_str(&text)
+    let parsed: AnthropicResponse =
-        .map_err(|err| format!("Could not process response: {err}"))?;
+        serde_json::from_str(&text).map_err(|err| format!("Could not process response: {err}"))?;
 
-    parsed
+    let message = parsed
         .content
         .into_iter()
         .find_map(|block| block.text)
         .map(|text| sanitize_message(&text))
         .filter(|text| !text.is_empty())
-        .ok_or_else(|| "The model did not return a response.".to_string())
+        .ok_or_else(|| "The model did not return a response.".to_string())?;
+
+    if looks_like_diff_echo(&message) {
+        return Err("The model returned the diff instead of a commit message.".to_string());
+    }
+    Ok(message)
 }

src-tauri/crates/commit_ai/src/lib.rs

@@ -2,9 +2,13 @@ mod cloud;
 
 pub use cloud::{generate_anthropic, generate_custom, generate_openai};
 
-use std::sync::Arc;
+use std::{
+    collections::hash_map::DefaultHasher,
+    hash::{Hash, Hasher},
+    sync::Arc,
+};
 
-use mistralrs::{GgufModelBuilder, Model, TextMessageRole, TextMessages};
+use mistralrs::{GgufModelBuilder, Model, RequestBuilder, TextMessageRole};
 use tokio::sync::RwLock;
 
 /// One selectable local (on-device) model. Larger models produce better commit messages
@@ -19,7 +23,7 @@ pub struct LocalModelOption {
     tokenizer_repo: &'static str,
 }
 
-pub const DEFAULT_LOCAL_MODEL_ID: &str = "qwen2.5-1.5b";
+pub const DEFAULT_LOCAL_MODEL_ID: &str = "qwen2.5-0.5b";
 
 pub const LOCAL_MODELS: &[LocalModelOption] = &[
     LocalModelOption {
@@ -52,6 +56,59 @@ fn find_local_model(model_id: &str) -> Option<&'static LocalModelOption> {
     LOCAL_MODELS.iter().find(|option| option.id == model_id)
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, serde::Serialize, serde::Deserialize)]
+#[serde(rename_all = "lowercase")]
+pub enum LocalGenerationProfile {
+    Fast,
+    Balanced,
+    Detailed,
+}
+
+impl Default for LocalGenerationProfile {
+    fn default() -> Self {
+        Self::Fast
+    }
+}
+
+impl LocalGenerationProfile {
+    pub fn from_id(value: Option<&str>) -> Self {
+        match value
+            .unwrap_or_default()
+            .trim()
+            .to_ascii_lowercase()
+            .as_str()
+        {
+            "balanced" => Self::Balanced,
+            "detailed" => Self::Detailed,
+            _ => Self::Fast,
+        }
+    }
+
+    pub fn diff_unified_context(self) -> &'static str {
+        match self {
+            Self::Fast => "--unified=1",
+            Self::Balanced => "--unified=2",
+            Self::Detailed => "--unified=3",
+        }
+    }
+
+    fn max_diff_chars(self) -> usize {
+        match self {
+            Self::Fast => 8_000,
+            Self::Balanced => 12_000,
+            Self::Detailed => 24_000,
+        }
+    }
+
+    fn max_output_tokens(self) -> usize {
+        match self {
+            Self::Fast => 160,
+            Self::Balanced => 360,
+            Self::Detailed => 750,
+        }
+    }
+}
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize)]
 #[serde(rename_all = "lowercase")]
 pub enum CommitAiPhase {
@@ -75,6 +132,20 @@ struct Inner {
     model_id: Option<String>,
     error: Option<String>,
     model: Option<Arc<Model>>,
+    cache: Option<GenerationCache>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+struct GenerationCacheKey {
+    model_id: String,
+    profile: LocalGenerationProfile,
+    input_hash: u64,
+}
+
+#[derive(Debug, Clone)]
+struct GenerationCache {
+    key: GenerationCacheKey,
+    message: String,
 }
 
 /// Manages the local (on-device) model only. Cloud providers are stateless HTTP calls
@@ -92,6 +163,7 @@ impl Default for CommitAiEngine {
                 model_id: None,
                 error: None,
                 model: None,
+                cache: None,
             })),
         }
     }
@@ -129,6 +201,7 @@ impl CommitAiEngine {
             guard.phase = CommitAiPhase::Error;
             guard.model_id = Some(model_id.to_string());
             guard.error = Some(format!("Unknown local model: {model_id}"));
+            guard.cache = None;
             return;
         };
 
@@ -138,6 +211,7 @@ impl CommitAiEngine {
             guard.model_id = Some(model_id.to_string());
             guard.error = None;
             guard.model = None;
+            guard.cache = None;
         }
 
         let result = GgufModelBuilder::new(option.repo, vec![option.file])
@@ -157,10 +231,12 @@ impl CommitAiEngine {
                 guard.model = Some(Arc::new(model));
                 guard.phase = CommitAiPhase::Ready;
                 guard.error = None;
+                guard.cache = None;
             }
             Err(err) => {
                 guard.phase = CommitAiPhase::Error;
                 guard.error = Some(err.to_string());
+                guard.cache = None;
             }
         }
     }
@@ -169,22 +245,36 @@ impl CommitAiEngine {
         &self,
         diff: &str,
         notes: Option<&str>,
+        profile: LocalGenerationProfile,
     ) -> Result<String, String> {
-        let model = {
+        let (model, cache_key) = {
             let guard = self.inner.read().await;
             match (guard.phase, &guard.model) {
-                (CommitAiPhase::Ready, Some(model)) => model.clone(),
+                (CommitAiPhase::Ready, Some(model)) => {
+                    let cache_key = GenerationCacheKey {
+                        model_id: guard.model_id.clone().unwrap_or_default(),
+                        profile,
+                        input_hash: generation_input_hash(diff, notes),
+                    };
+                    if let Some(cache) = &guard.cache {
+                        if cache.key == cache_key {
+                            return Ok(cache.message.clone());
+                        }
+                    }
+                    (model.clone(), cache_key)
+                }
                 _ => return Err("The local AI model is not ready yet.".to_string()),
             }
         };
 
-        let (system, user) = build_messages(diff, notes)?;
+        let (system, user) = build_local_messages(diff, notes, profile)?;
-        let messages = TextMessages::new()
+        let request = RequestBuilder::new()
+            .set_sampler_max_len(profile.max_output_tokens())
             .add_message(TextMessageRole::System, system)
             .add_message(TextMessageRole::User, user);
 
         let response = model
-            .send_chat_request(messages)
+            .send_chat_request(request)
             .await
             .map_err(|err| err.to_string())?;
 
@@ -198,10 +288,29 @@ impl CommitAiEngine {
         if message.is_empty() {
             return Err("The model did not return a response.".to_string());
         }
+        if looks_like_diff_echo(&message) {
+            return Err(
+                "The local model returned the diff instead of a commit message. Try a larger local model (1.5B or 3B) or a cloud provider.".to_string(),
+            );
+        }
+        {
+            let mut guard = self.inner.write().await;
+            guard.cache = Some(GenerationCache {
+                key: cache_key,
+                message: message.clone(),
+            });
+        }
         Ok(message)
     }
 }
 
+fn generation_input_hash(diff: &str, notes: Option<&str>) -> u64 {
+    let mut hasher = DefaultHasher::new();
+    diff.hash(&mut hasher);
+    notes.unwrap_or("").hash(&mut hasher);
+    hasher.finish()
+}
+
 /// Models occasionally ignore the "no code fences" instruction (small local models
 /// especially) — strip a wrapping ``` fence and wrapping quotes so the result can go
 /// straight into the commit-message box.
@@ -221,6 +330,74 @@ pub(crate) fn sanitize_message(raw: &str) -> String {
     trimmed.to_string()
 }
 
+/// Weak models (small local ones especially) sometimes just echo the prompt's diff
+/// sections back instead of writing a commit message. Catch that so the UI can show a
+/// clear error instead of dumping raw diff text into the commit-message box.
+pub(crate) fn looks_like_diff_echo(message: &str) -> bool {
+    let lower = message.to_ascii_lowercase();
+    lower.contains("diff --git")
+        || lower.contains("staged files:")
+        || lower.contains("staged changes:")
+        || lower.contains("diff stat:")
+        || lower.contains("detailed diff:")
+        || message.lines().any(|line| line.starts_with("@@ "))
+}
+
+fn truncate_at_char_boundary(input: &str, max_chars: usize) -> String {
+    if input.len() <= max_chars {
+        return input.to_string();
+    }
+
+    let mut cut = max_chars;
+    while !input.is_char_boundary(cut) {
+        cut -= 1;
+    }
+    format!("{}\n\n[... diff truncated ...]", &input[..cut])
+}
+
+pub(crate) fn build_local_messages(
+    diff: &str,
+    notes: Option<&str>,
+    profile: LocalGenerationProfile,
+) -> Result<(String, String), String> {
+    if diff.trim().is_empty() {
+        return Err("No staged changes available for a commit message.".to_string());
+    }
+
+    let diff = truncate_at_char_boundary(diff, profile.max_diff_chars());
+    // Appended to every profile below: small local models occasionally just echo the input
+    // (the "Staged files:" / "Diff stat:" / "Detailed diff:" sections built in git.rs's
+    // `staged_diff_local`) instead of writing a new commit message. Naming those exact
+    // section headers here makes the failure mode explicit enough for weak models to avoid.
+    const ANTI_ECHO: &str = " Never repeat, quote, or paraphrase the diff or its headers — \
+do not include 'diff --git', '@@', 'Staged files:', 'Diff stat:', or 'Detailed diff:' \
+anywhere in your answer.";
+    let system = match profile {
+        LocalGenerationProfile::Fast => {
+            format!(
+                "You generate Git commit messages. Respond only with one Conventional Commits subject line: <type>(<scope>): <subject>. Max 72 characters. No body, bullets, preamble, explanation, code fences, or quotes. Answer in English.{ANTI_ECHO}"
+            )
+        }
+        LocalGenerationProfile::Balanced => {
+            format!(
+                "You generate Git commit messages. Respond with a Conventional Commits subject line, then a blank line, then at most two short bullet points. Keep every line under 72 characters. No preamble, explanation, code fences, or quotes. Answer in English.{ANTI_ECHO}"
+            )
+        }
+        LocalGenerationProfile::Detailed => {
+            format!(
+                "You generate Git commit messages. Respond with a Conventional Commits subject line, then a blank line, then a concise body and up to four short bullet points grouped by affected area/file. Keep every line under 72 characters. No preamble, explanation, code fences, or quotes. Answer in English.{ANTI_ECHO}"
+            )
+        }
+    };
+
+    let mut user = String::new();
+    if let Some(n) = notes.filter(|n| !n.trim().is_empty()) {
+        user.push_str(&format!("Developer notes:\n{n}\n\n"));
+    }
+    user.push_str(&format!("Staged changes:\n{diff}"));
+    Ok((system, user))
+}
+
 pub(crate) fn build_messages(diff: &str, notes: Option<&str>) -> Result<(String, String), String> {
     if diff.trim().is_empty() {
         return Err("No staged changes available for a commit message.".to_string());
@@ -228,26 +405,35 @@ pub(crate) fn build_messages(diff: &str, notes: Option<&str>) -> Result<(String,
 
     // Rough token estimate — small models often have an 8-32k context window.
     const MAX_CHARS: usize = 24_000;
-    let diff = if diff.len() > MAX_CHARS {
+    let diff = truncate_at_char_boundary(diff, MAX_CHARS);
-        // Pull the byte index back to a valid UTF-8 char boundary, otherwise
-        // slicing mid-multi-byte-character would panic.
-        let mut cut = MAX_CHARS;
-        while !diff.is_char_boundary(cut) {
-            cut -= 1;
-        }
-        format!("{}\n\n[... diff truncated ...]", &diff[..cut])
-    } else {
-        diff.to_string()
-    };
 
-    let system = "You are a tool that generates Git commit messages. \
+    let system = "You are a tool that writes a Git commit message describing a staged diff. \
-Respond only with the commit message in Conventional Commits format \
+Output ONLY the commit message text. Never quote, restate, or paraphrase the diff itself: \
-(<type>(<scope>): <subject>), followed by a body after a blank line. \
+do not include lines starting with 'diff --git', '@@', '+', '-', 'index ', 'Staged files:', \
-Subject in imperative mood, max. 72 characters. \
+or 'Diff stat:' anywhere in your answer. \
-The body is required: summarize in a short paragraph what changed and why, \
+Format: a Conventional Commits header (<type>(<scope>): <subject>) in imperative mood, \
-then list the key changes as bullet points (- ...), \
+max. 72 characters, then a blank line, then a body. \
-grouped by affected area/file. Lines in the body max. 72 characters. \
+The body is required: a short, general paragraph (2-4 sentences) summarizing what changed \
-No preamble, no explanation, no code fences, answer in English"
+and why at a high level — do NOT enumerate every changed file individually. \
+You may optionally add up to 3 bullet points (- ...) afterward, but only for the most \
+significant changes overall, never one bullet or heading per file. \
+Never use bold text, backticks, or markdown headings for file names. \
+Lines in the body max. 72 characters. \
+No preamble, no explanation, no code fences, answer in English.\n\n\
+Example:\n\
+Diff:\n\
+diff --git a/src/auth.py b/src/auth.py\n\
++def hash_password(pw):\n\
++    return bcrypt.hash(pw)\n\
+diff --git a/src/routes.py b/src/routes.py\n\
+-if password == stored_password:\n\
++if bcrypt.check(password, stored_password):\n\n\
+Commit message:\n\
+feat(auth): hash and verify passwords with bcrypt\n\n\
+Passwords were previously compared as plain text. This adds a bcrypt-based\n\
+hashing helper and updates the login check to verify against the hash\n\
+instead of a direct string comparison.\n\n\
+- Hash passwords on write, verify with bcrypt on login"
         .to_string();
 
     let mut user = String::new();

src-tauri/src/badge.rs

@@ -0,0 +1,186 @@
+//! Renders the combined repository attention count as a taskbar badge and applies it as the
+//! Windows taskbar overlay. Windows has no native numeric taskbar badge (unlike
+//! macOS/Linux, which support `Window::set_badge_count`), so the numbers have to be drawn
+//! into a plain RGBA icon ourselves and set via `Window::set_overlay_icon`.
+
+use tauri::Manager;
+use tauri::image::Image;
+
+const GLYPH_WIDTH: usize = 3;
+const GLYPH_HEIGHT: usize = 5;
+
+/// A minimal 3x5 pixel-grid font, just enough to draw digits and "+" legibly at badge size.
+fn glyph_rows(ch: char) -> [&'static str; GLYPH_HEIGHT] {
+    match ch {
+        '0' => ["111", "101", "101", "101", "111"],
+        '1' => ["010", "110", "010", "010", "111"],
+        '2' => ["111", "001", "111", "100", "111"],
+        '3' => ["111", "001", "111", "001", "111"],
+        '4' => ["101", "101", "111", "001", "001"],
+        '5' => ["111", "100", "111", "001", "111"],
+        '6' => ["111", "100", "111", "101", "111"],
+        '7' => ["111", "001", "010", "010", "010"],
+        '8' => ["111", "101", "111", "101", "111"],
+        '9' => ["111", "101", "111", "001", "111"],
+        '+' => ["000", "010", "111", "010", "000"],
+        _ => ["000", "000", "000", "000", "000"],
+    }
+}
+
+const BADGE_FILL: [u8; 4] = [224, 160, 64, 255];
+const BADGE_BORDER: [u8; 4] = [176, 118, 40, 255];
+const TEXT_FILL: [u8; 4] = [255, 255, 255, 255];
+const TEXT_SHADOW: [u8; 4] = [10, 12, 24, 190];
+const CIRCLE_BORDER_WIDTH: f32 = 3.0;
+
+/// Caps the displayed text at three characters ("99+") so it always fits legibly.
+fn cap_text(count: u32) -> String {
+    if count > 99 {
+        "99+".to_string()
+    } else {
+        count.to_string()
+    }
+}
+
+/// Draws a filled circle (with a slightly darker rim) centered at `(cx, cy)`.
+fn draw_circle(
+    rgba: &mut [u8],
+    size: usize,
+    cx: f32,
+    cy: f32,
+    radius: f32,
+    fill: [u8; 4],
+    border: [u8; 4],
+) {
+    for y in 0..size {
+        for x in 0..size {
+            let dx = x as f32 + 0.5 - cx;
+            let dy = y as f32 + 0.5 - cy;
+            let dist = (dx * dx + dy * dy).sqrt();
+            if dist <= radius {
+                let color = if dist >= radius - CIRCLE_BORDER_WIDTH {
+                    border
+                } else {
+                    fill
+                };
+                let idx = (y * size + x) * 4;
+                rgba[idx..idx + 4].copy_from_slice(&color);
+            }
+        }
+    }
+}
+
+fn draw_text_layer(
+    rgba: &mut [u8],
+    size: usize,
+    text: &str,
+    cx: f32,
+    cy: f32,
+    scale: usize,
+    offset: (isize, isize),
+    color: [u8; 4],
+) {
+    let glyphs: Vec<[&'static str; GLYPH_HEIGHT]> = text.chars().map(glyph_rows).collect();
+    let glyph_px_w = GLYPH_WIDTH * scale;
+    let glyph_px_h = GLYPH_HEIGHT * scale;
+    let gap = scale.max(1);
+    let total_w = glyphs.len() * glyph_px_w + gap * glyphs.len().saturating_sub(1);
+    let start_x = (cx - total_w as f32 / 2.0).round() as isize + offset.0;
+    let start_y = (cy - glyph_px_h as f32 / 2.0).round() as isize + offset.1;
+
+    for (gi, rows) in glyphs.iter().enumerate() {
+        let glyph_x = start_x + (gi * (glyph_px_w + gap)) as isize;
+        for (gy, row) in rows.iter().enumerate() {
+            for (gx, pixel) in row.chars().enumerate() {
+                if pixel != '1' {
+                    continue;
+                }
+                for py in 0..scale {
+                    for px in 0..scale {
+                        let x = glyph_x + (gx * scale + px) as isize;
+                        let y = start_y + (gy * scale + py) as isize;
+                        if x >= 0 && y >= 0 && (x as usize) < size && (y as usize) < size {
+                            let idx = (y as usize * size + x as usize) * 4;
+                            rgba[idx..idx + 4].copy_from_slice(&color);
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+/// Draws white `text` centered at `(cx, cy)`, scaling each font pixel up by `scale`.
+fn draw_text(rgba: &mut [u8], size: usize, text: &str, cx: f32, cy: f32, scale: usize) {
+    for offset in [(-1, 0), (1, 0), (0, -1), (0, 1)] {
+        draw_text_layer(rgba, size, text, cx, cy, scale, offset, TEXT_SHADOW);
+    }
+    draw_text_layer(rgba, size, text, cx, cy, scale, (0, 0), TEXT_FILL);
+}
+
+fn text_scale(text: &str) -> usize {
+    match text.len() {
+        0 | 1 => 7,
+        2 => 5,
+        _ => 4,
+    }
+}
+
+/// Renders a single large badge with `count`. Returns `None` when there's nothing to show,
+/// so the caller can clear the overlay icon.
+fn render_badge_icon(count: u32) -> Option<Image<'static>> {
+    if count == 0 {
+        return None;
+    }
+
+    const SIZE: usize = 64;
+    const RADIUS: f32 = 29.0;
+    let mut rgba = vec![0u8; SIZE * SIZE * 4];
+    let center = SIZE as f32 / 2.0;
+
+    let text = cap_text(count);
+    draw_circle(
+        &mut rgba,
+        SIZE,
+        center,
+        center,
+        RADIUS,
+        BADGE_FILL,
+        BADGE_BORDER,
+    );
+    draw_text(&mut rgba, SIZE, &text, center, center, text_scale(&text));
+
+    Some(Image::new_owned(rgba, SIZE as u32, SIZE as u32))
+}
+
+/// Sets the taskbar badge to `ahead + behind + changes` (0 clears it). Windows-only: Windows
+/// has no native numeric badge API, so this draws and applies a small overlay icon instead.
+/// No-op on other platforms: non-Windows desktops should use `Window::set_badge_count`
+/// for a real native badge instead, which this app doesn't currently wire up.
+#[tauri::command]
+pub fn set_sync_badge(
+    app: tauri::AppHandle,
+    ahead: u32,
+    behind: u32,
+    changes: u32,
+) -> Result<(), String> {
+    let count = ahead.saturating_add(behind).saturating_add(changes);
+
+    #[cfg(target_os = "windows")]
+    {
+        let Some(window) = app.get_webview_window("main") else {
+            return Ok(());
+        };
+        let icon = render_badge_icon(count);
+        window
+            .set_overlay_icon(icon)
+            .map_err(|err| format!("Could not set taskbar badge: {err}"))?;
+    }
+
+    #[cfg(not(target_os = "windows"))]
+    {
+        let _ = (app, count);
+    }
+
+    Ok(())
+}

src-tauri/src/git.rs

@@ -540,6 +540,50 @@ fn staged_diff(repo: &Path) -> Result<String, String> {
     Ok(format!("Staged files:\n{file_list}\n\n{diff}"))
 }
 
+fn staged_diff_local(
+    repo: &Path,
+    profile: commit_ai::LocalGenerationProfile,
+) -> Result<String, String> {
+    let name_status = run_git(repo, ["diff", "--cached", "--name-status", "-M"])?;
+    let file_list = String::from_utf8_lossy(&name_status).trim().to_string();
+
+    let stat = run_git(repo, ["diff", "--cached", "--stat", "--summary"])?;
+    let stat = String::from_utf8_lossy(&stat).trim().to_string();
+
+    let diff_args = vec![
+        "diff",
+        "--cached",
+        "--no-ext-diff",
+        "--no-textconv",
+        profile.diff_unified_context(),
+        "--",
+        ".",
+        ":(exclude)*package-lock.json",
+        ":(exclude)*pnpm-lock.yaml",
+        ":(exclude)*yarn.lock",
+        ":(exclude)*bun.lockb",
+        ":(exclude)*Cargo.lock",
+        ":(exclude)*composer.lock",
+        ":(exclude)*Gemfile.lock",
+        ":(exclude)*poetry.lock",
+        ":(exclude)*go.sum",
+    ];
+    let diff = run_git(repo, diff_args)?;
+    let diff = String::from_utf8_lossy(&diff).trim().to_string();
+
+    let mut sections = Vec::new();
+    if !file_list.is_empty() {
+        sections.push(format!("Staged files:\n{file_list}"));
+    }
+    if !stat.is_empty() {
+        sections.push(format!("Diff stat:\n{stat}"));
+    }
+    if !diff.is_empty() {
+        sections.push(format!("Detailed diff:\n{diff}"));
+    }
+    Ok(sections.join("\n\n"))
+}
+
 #[tauri::command]
 pub async fn commit_ai_generate(
     path: String,
@@ -548,17 +592,27 @@ pub async fn commit_ai_generate(
     model: Option<String>,
     api_key: Option<String>,
     base_url: Option<String>,
+    local_profile: Option<String>,
     engine: tauri::State<'_, commit_ai::CommitAiEngine>,
 ) -> Result<String, String> {
     let repo = resolve_repo(&path)?;
-    let diff = staged_diff(&repo)?;
+    let local_profile = commit_ai::LocalGenerationProfile::from_id(local_profile.as_deref());
+    let diff = if provider == "local" {
+        staged_diff_local(&repo, local_profile)?
+    } else {
+        staged_diff(&repo)?
+    };
     let notes = notes.as_deref();
     let model = model.filter(|value| !value.trim().is_empty());
     let api_key = api_key.filter(|value| !value.trim().is_empty());
     let base_url = base_url.filter(|value| !value.trim().is_empty());
 
     match provider.as_str() {
-        "local" => engine.generate_commit_message(&diff, notes).await,
+        "local" => {
+            engine
+                .generate_commit_message(&diff, notes, local_profile)
+                .await
+        }
         "openai" => {
             let api_key = api_key.ok_or_else(|| "OpenAI API key is missing.".to_string())?;
             let model = model.unwrap_or_else(|| "gpt-4o-mini".to_string());
@@ -620,9 +674,7 @@ pub fn commit(path: String, message: String) -> Result<GitStatus, String> {
 
     let current_status = status_for_repo(&repo)?;
     if has_unresolved_conflicts(&current_status) {
-        return Err(
+        return Err("Merge conflicts must be resolved before you can commit.".to_string());
-            "Merge conflicts must be resolved before you can commit.".to_string(),
-        );
     }
 
     run_git(&repo, ["commit", "-m", message.as_str()])?;
@@ -646,9 +698,7 @@ pub fn pull(
             .arg(&repo)
             .args(pull_args)
             .output()
-            .map_err(|err| {
+            .map_err(|err| format!("Could not start Git. Is Git installed? {err}"))?,
-                format!("Could not start Git. Is Git installed? {err}")
-            })?,
     };
 
     if output.status.success() {
@@ -667,6 +717,41 @@ pub fn pull(
     Err(format!("Git command failed: {details}"))
 }
 
+#[tauri::command]
+pub async fn fetch(
+    path: String,
+    username: Option<String>,
+    password: Option<String>,
+) -> Result<GitStatus, String> {
+    tauri::async_runtime::spawn_blocking(move || -> Result<GitStatus, String> {
+        let repo = resolve_repo(&path)?;
+        let fetch_args = ["fetch"];
+        let output = match (username.as_deref(), password.as_deref()) {
+            (Some(u), Some(p)) if !u.is_empty() || !p.is_empty() => {
+                run_git_authenticated_output(&repo, fetch_args, u, p)?
+            }
+            _ => git_command()
+                .arg("-C")
+                .arg(&repo)
+                .args(fetch_args)
+                .output()
+                .map_err(|err| format!("Could not start Git. Is Git installed? {err}"))?,
+        };
+
+        if output.status.success() {
+            return status_for_repo(&repo);
+        }
+
+        let details = command_output_details(&output);
+        if is_auth_error(&details) {
+            return Err(format!("AUTH_FAILED:{details}"));
+        }
+        Err(format!("Git command failed: {details}"))
+    })
+    .await
+    .map_err(|err| format!("Could not fetch repository: {err}"))?
+}
+
 #[tauri::command]
 pub fn push(
     path: String,
@@ -703,8 +788,7 @@ fn cred_entry(key: &str) -> Result<keyring::Entry, String> {
     if key.is_empty() {
         return Err("No key provided for the credentials.".to_string());
     }
-    keyring::Entry::new(CRED_SERVICE, key)
+    keyring::Entry::new(CRED_SERVICE, key).map_err(|err| format!("Keychain unavailable: {err}"))
-        .map_err(|err| format!("Keychain unavailable: {err}"))
 }
 
 /// Returns the remote URL used for auth key derivation (upstream remote of the
@@ -790,9 +874,8 @@ fn initial_push_remote_name(repo: &Path) -> Result<String, String> {
         return Ok("origin".to_string());
     }
 
-    first_remote_name(repo).ok_or_else(|| {
+    first_remote_name(repo)
-        "This branch has no upstream and no remote is configured.".to_string()
+        .ok_or_else(|| "This branch has no upstream and no remote is configured.".to_string())
-    })
 }
 
 fn push_args_for_repo(repo: &Path) -> Result<Vec<OsString>, String> {
@@ -1254,6 +1337,8 @@ pub fn compare_commits(
         &repo,
         [
             "diff",
+            "--no-ext-diff",
+            "--no-textconv",
             "-M",
             FULL_FILE_DIFF_CONTEXT,
             from_hash.as_str(),
@@ -1296,7 +1381,14 @@ pub fn diff_file_against_working_tree(
     )?;
     let patch_output = run_git_with_paths(
         &repo,
-        &["diff", "-M", FULL_FILE_DIFF_CONTEXT, commit_hash.as_str()],
+        &[
+            "diff",
+            "--no-ext-diff",
+            "--no-textconv",
+            "-M",
+            FULL_FILE_DIFF_CONTEXT,
+            commit_hash.as_str(),
+        ],
         std::slice::from_ref(&file),
     )?;
 
@@ -1352,6 +1444,8 @@ pub fn compare_file_to_head(
         &repo,
         &[
             "diff",
+            "--no-ext-diff",
+            "--no-textconv",
             "-M",
             FULL_FILE_DIFF_CONTEXT,
             commit_hash.as_str(),
@@ -1424,6 +1518,8 @@ pub fn compare_file_to_parent(
         &repo,
         &[
             "diff",
+            "--no-ext-diff",
+            "--no-textconv",
             "-M",
             FULL_FILE_DIFF_CONTEXT,
             from_hash.as_str(),
@@ -2554,9 +2650,7 @@ fn validate_existing_local_branch_name(repo: &Path, branch: &str) -> Result<Stri
 
     let normalized = validate_branch_ref_name(branch)?;
     if !ref_exists(repo, &format!("refs/heads/{normalized}"))? {
-        return Err(format!(
+        return Err(format!("Local branch '{normalized}' was not found."));
-            "Local branch '{normalized}' was not found."
-        ));
     }
 
     Ok(normalized)
@@ -2996,8 +3090,8 @@ where
         thread::sleep(Duration::from_millis(60));
     };
 
-    let stdout = std::fs::read(&stdout_path)
+    let stdout =
-        .map_err(|err| format!("Could not read Git output: {err}"))?;
+        std::fs::read(&stdout_path).map_err(|err| format!("Could not read Git output: {err}"))?;
     let stderr = std::fs::read(&stderr_path)
         .map_err(|err| format!("Could not read Git error output: {err}"))?;
     let _ = std::fs::remove_file(&stdout_path);
@@ -4179,7 +4273,7 @@ mod tests {
         );
 
         let err = delete_branch(repo.path.to_string_lossy().to_string(), current).unwrap_err();
-        assert!(err.contains("aktuelle Branch"));
+        assert!(err.contains("current branch"));
     }
 
     #[test]

src-tauri/src/main.rs

@@ -1,17 +1,19 @@
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
+mod badge;
 mod git;
 
+use badge::set_sync_badge;
 use git::{
     SearchCancellationState, apply_file_patch, cancel_code_search, cancel_file_history,
     checkout_branch, commit, commit_ai_generate, commit_ai_load, commit_ai_local_models,
-    commit_ai_status, compare_commits, compare_file_to_head, compare_file_to_parent,
+    commit_ai_status, compare_commits, compare_file_to_head, compare_file_to_parent, create_branch,
-    create_branch, cred_delete, cred_load, cred_save, delete_branch,
+    cred_delete, cred_load, cred_save, delete_branch, diff_file_against_working_tree, fetch,
-    diff_file_against_working_tree, get_file_patch, get_remote_url, get_status, list_branches,
+    get_file_patch, get_remote_url, get_status, list_branches, list_commits, list_file_history,
-    list_commits, list_file_history, list_repository_files, merge_branch, open_repo_in_explorer,
+    list_repository_files, merge_branch, open_repo_in_explorer, open_repository,
-    open_repository, open_repository_bundle, open_repository_file, pull, push, read_conflict,
+    open_repository_bundle, open_repository_file, pull, push, read_conflict, rename_branch,
-    rename_branch, resolve_conflict, resolve_conflict_side, restore_file_from_commit,
+    resolve_conflict, resolve_conflict_side, restore_file_from_commit, restore_files,
-    restore_files, restore_to_commit, search_code_introductions, stage_files, unstage_files,
+    restore_to_commit, search_code_introductions, stage_files, unstage_files,
 };
 
 fn main() {
@@ -42,6 +44,7 @@ fn main() {
             commit_ai_generate,
             pull,
             push,
+            fetch,
             list_commits,
             restore_to_commit,
             restore_file_from_commit,
@@ -62,7 +65,8 @@ fn main() {
             get_remote_url,
             cred_load,
             cred_save,
-            cred_delete
+            cred_delete,
+            set_sync_badge
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "GitLite",
-  "version": "2026.7.6",
+  "version": "2026.7.9",
   "identifier": "com.git-lite",
   "build": {
     "beforeDevCommand": "npm run dev",

src/App.svelte

@@ -39,6 +39,7 @@
     deleteBranch,
     diffFileAgainstWorkingTree,
     compareFileToParent,
+    fetchRemote,
     getStatus,
     listBranches,
     listCommits,
@@ -63,6 +64,7 @@
     restoreFiles,
     restoreToCommit,
     searchCodeIntroductions,
+    setSyncBadge,
     stageFiles,
     unstageFiles,
   } from "./lib/git";
@@ -141,6 +143,7 @@
   let activeFileHistoryRequestId = "";
   let lastFileHistoryHeadHash = "";
   let commitMessage = "";
+  let lastLocalAiGeneratedMessage = "";
   let commitAiPhase: CommitAiPhase = "idle";
   let commitAiGenerating = false;
   let commitAiPollTimer: ReturnType<typeof setInterval> | undefined;
@@ -179,12 +182,17 @@
   let autoRefreshEnabled = true;
   let autoRefreshInFlight = false;
   let credDialogOpen = false;
-  let credDialogAction: "push" | "pull" | null = null;
+  let credDialogAction: "push" | "pull" | "fetch" | null = null;
   let credDialogError = "";
   let credDialogKey: string | null = null;
   let lastStatusFingerprint = "";
   const AUTO_REFRESH_INTERVAL = 4000;
   let autoRefreshTimer: ReturnType<typeof setInterval> | undefined;
+  const BACKGROUND_FETCH_INTERVAL = 180_000;
+  const BACKGROUND_FETCH_AFTER_SWITCH_GRACE_MS = 30_000;
+  let backgroundFetchTimer: ReturnType<typeof setInterval> | undefined;
+  let backgroundFetchInFlight = false;
+  let lastRepoSwitchAt = 0;
   let updateToastOpen = false;
   let updateToastState: UpdateToastState = "available";
   let pendingUpdate: Update | null = null;
@@ -234,12 +242,14 @@
   onMount(() => {
     loadRepoLists();
     autoRefreshTimer = setInterval(() => { void autoRefreshTick(); }, AUTO_REFRESH_INTERVAL);
+    backgroundFetchTimer = setInterval(() => { void backgroundFetchTick(); }, BACKGROUND_FETCH_INTERVAL);
     void checkForUpdates();
     void initCommitAi();
   });
 
   onDestroy(() => {
     if (autoRefreshTimer) clearInterval(autoRefreshTimer);
+    if (backgroundFetchTimer) clearInterval(backgroundFetchTimer);
     if (commitAiPollTimer) clearInterval(commitAiPollTimer);
     if (activeFileHistoryRequestId) void cancelFileHistory(activeFileHistoryRequestId);
   });
@@ -250,6 +260,23 @@
     return JSON.stringify({ branch: value.current_branch, upstream: value.upstream, ahead: value.ahead, behind: value.behind, files: value.files });
   }
 
+  // Silent background fetch (every 180s): only updates the local remote-tracking ref so
+  // ahead/behind (and the taskbar badge) stay accurate without the user pulling manually.
+  // Errors are swallowed here — auth/network failures surface via the manual Fetch/Pull/
+  // Push buttons instead, not as a background popup.
+  async function backgroundFetchTick() {
+    if (!autoRefreshEnabled || activeView !== "repository" || !activeRepoPath || isBusy || backgroundFetchInFlight) return;
+    if (Date.now() - lastRepoSwitchAt < BACKGROUND_FETCH_AFTER_SWITCH_GRACE_MS) return;
+    backgroundFetchInFlight = true;
+    try {
+      await fetchRemote(activeRepoPath);
+    } catch {
+      // ignore — see comment above
+    } finally {
+      backgroundFetchInFlight = false;
+    }
+  }
+
   async function autoRefreshTick() {
     if (!autoRefreshEnabled || activeView !== "repository" || !activeRepoPath || isBusy || autoRefreshInFlight || resolveDialogOpen || compareDialogOpen || compareSelectOpen || newBranchCommit || globalSearchOpen) return;
     autoRefreshInFlight = true;
@@ -322,6 +349,13 @@
     startCommitAiPolling();
   }
 
+  function updateCommitMessage(message: string) {
+    commitMessage = message;
+    if (message !== lastLocalAiGeneratedMessage) {
+      lastLocalAiGeneratedMessage = "";
+    }
+  }
+
   async function generateCommitMessageWithAi() {
     if (!activeRepoPath || commitAiGenerating) return;
     if (aiSettings.provider === "local" && commitAiPhase !== "ready") return;
@@ -330,7 +364,13 @@
     try {
       const notes = commitMessage.trim() || undefined;
       if (aiSettings.provider === "local") {
-        commitMessage = await commitAiGenerate(activeRepoPath, { provider: "local", notes });
+        const localNotes = notes && notes !== lastLocalAiGeneratedMessage ? notes : undefined;
+        commitMessage = await commitAiGenerate(activeRepoPath, {
+          provider: "local",
+          notes: localNotes,
+          localProfile: aiSettings.localProfile,
+        });
+        lastLocalAiGeneratedMessage = commitMessage;
       } else if (aiSettings.provider === "openai") {
         const cred = await credLoad("ai:openai");
         commitMessage = await commitAiGenerate(activeRepoPath, {
@@ -339,6 +379,7 @@
           model: aiSettings.openaiModel,
           apiKey: cred?.password,
         });
+        lastLocalAiGeneratedMessage = "";
       } else if (aiSettings.provider === "anthropic") {
         const cred = await credLoad("ai:anthropic");
         commitMessage = await commitAiGenerate(activeRepoPath, {
@@ -347,6 +388,7 @@
           model: aiSettings.anthropicModel,
           apiKey: cred?.password,
         });
+        lastLocalAiGeneratedMessage = "";
       } else {
         const cred = await credLoad("ai:custom");
         commitMessage = await commitAiGenerate(activeRepoPath, {
@@ -356,6 +398,7 @@
           baseUrl: aiSettings.customBaseUrl,
           apiKey: cred?.password,
         });
+        lastLocalAiGeneratedMessage = "";
       }
     } catch (error) {
       errorMessage = errorToMessage(error);
@@ -526,8 +569,9 @@
 
   function defaultAiSettings(): AiSettings {
     return {
-      provider: "local",
+      provider: "openai",
-      localModelId: "qwen2.5-1.5b",
+      localModelId: "qwen2.5-0.5b",
+      localProfile: "fast",
       openaiModel: "gpt-4o-mini",
       anthropicModel: "claude-3-5-haiku-latest",
       customBaseUrl: "",
@@ -539,7 +583,11 @@
     try {
       const stored = JSON.parse(localStorage.getItem(AI_SETTINGS_KEY) ?? "null") as unknown;
       if (stored && typeof stored === "object") {
-        return { ...defaultAiSettings(), ...(stored as Partial<AiSettings>) };
+        const merged = { ...defaultAiSettings(), ...(stored as Partial<AiSettings>) };
+        // Local AI is still in development and disabled in the settings UI — migrate any
+        // previously saved selection away from it so nobody gets stuck on a dead option.
+        if (merged.provider === "local") merged.provider = "openai";
+        return merged;
       }
     } catch {
       // Fall through to defaults below.
@@ -634,6 +682,7 @@
       repoPath = "";
       status = null;
       lastStatusFingerprint = "";
+      void setSyncBadge(0, 0, 0).catch(() => {});
     }
     branches = [];
     commits = [];
@@ -667,6 +716,7 @@
     repoPath = activeRepoPath;
     lastStatusFingerprint = statusFingerprint(nextStatus);
     upsertRepoTab(activeRepoPath, nextStatus);
+    void setSyncBadge(nextStatus.ahead, nextStatus.behind, nextStatus.files.length).catch(() => {});
   }
 
   function errorToMessage(error: unknown): string {
@@ -822,6 +872,7 @@
       await refreshBranchList(activeRepoPath, bundle.branches);
       await refreshCommitHistory(activeRepoPath, bundle.commits);
       await refreshExplorerFiles(activeRepoPath, bundle.files);
+      lastRepoSwitchAt = Date.now();
     });
   }
 
@@ -1014,7 +1065,7 @@
     }
   }
 
-  async function openCredentialDialog(action: "push" | "pull", key?: string | null) {
+  async function openCredentialDialog(action: "push" | "pull" | "fetch", key?: string | null) {
     if (!activeRepoPath) return;
     credDialogError = "";
     credDialogAction = action;
@@ -1024,7 +1075,7 @@
 
   // Post-process a pull/push result: surface errors, and on rejected/expired
   // credentials drop the stored entry and re-open the login dialog.
-  function handleRemoteResult(action: "push" | "pull", key: string | null, fromStore: boolean) {
+  function handleRemoteResult(action: "push" | "pull" | "fetch", key: string | null, fromStore: boolean) {
     if (!errorMessage) {
       credDialogOpen = false;
       credDialogAction = null;
@@ -1068,6 +1119,19 @@
     handleRemoteResult("pull", key, fromStore);
   }
 
+  async function doActualFetch(
+    username: string,
+    password: string,
+    key: string | null,
+    fromStore: boolean,
+  ) {
+    errorMessage = "";
+    await runOperation("Fetching", async () => {
+      applyStatus(await fetchRemote(activeRepoPath, username, password));
+    });
+    handleRemoteResult("fetch", key, fromStore);
+  }
+
   async function doActualPush(
     username: string,
     password: string,
@@ -1137,6 +1201,7 @@
     const key = credDialogKey;
     if (credDialogAction === "pull") await doActualPull(username, password, key, false);
     else if (credDialogAction === "push") await doActualPush(username, password, key, false);
+    else if (credDialogAction === "fetch") await doActualFetch(username, password, key, false);
 
     // Only persist once the operation actually succeeded (dialog has closed).
     if (!credDialogOpen && save && key) {
@@ -1148,13 +1213,14 @@
     }
   }
 
-  async function startRemoteAction(action: "push" | "pull") {
+  async function startRemoteAction(action: "push" | "pull" | "fetch") {
     if (!activeRepoPath) return;
     const key = await currentCredKey();
     const stored = await loadStoredCredential(key);
 
     if (stored && !isCredentialExpired(stored)) {
       if (action === "pull") await doActualPull(stored.username, stored.password, key, true);
+      else if (action === "fetch") await doActualFetch(stored.username, stored.password, key, true);
       else await doActualPush(stored.username, stored.password, key, true);
       return;
     }
@@ -1164,6 +1230,10 @@
     await openCredentialDialog(action, key);
   }
 
+  async function fetchRepo() {
+    await startRemoteAction("fetch");
+  }
+
   async function pullRepo() {
     await startRemoteAction("pull");
   }
@@ -1339,6 +1409,7 @@
     await runOperation("Committing", async () => {
       applyStatus(await commit(activeRepoPath, message));
       commitMessage = "";
+      lastLocalAiGeneratedMessage = "";
       await refreshBranchList(activeRepoPath);
       await refreshCommitHistory(activeRepoPath);
       await refreshExplorerFiles(activeRepoPath);
@@ -1670,6 +1741,7 @@
     {operation}
     {autoRefreshEnabled}
     {autoRefreshInFlight}
+    onFetch={fetchRepo}
     onPull={pullRepo}
     onPush={pushRepo}
     onRefresh={refreshRepo}
@@ -1968,7 +2040,7 @@
             {commitAiPhase}
             {commitAiGenerating}
             onCommit={commitChanges}
-            onCommitMessageChange={(msg) => { commitMessage = msg; }}
+            onCommitMessageChange={updateCommitMessage}
             onGenerateCommitMessage={generateCommitMessageWithAi}
             onOpenAiSettings={() => { aiSettingsOpen = true; }}
           />

src/app.css

@@ -1721,6 +1721,44 @@
     color: #f5f7ff;
     background: linear-gradient(180deg, rgba(100,108,255,0.22), rgba(65,209,255,0.1));
   }
+  .ai-provider-option-local {
+    flex-wrap: wrap;
+    row-gap: 2px;
+  }
+  .ai-provider-badge {
+    flex-basis: 100%;
+    text-align: center;
+    font-size: 9.5px;
+    font-weight: 700;
+    letter-spacing: 0.04em;
+    text-transform: uppercase;
+    color: var(--color-ink-faint);
+  }
+  .ai-local-profile-options {
+    display: grid;
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    gap: 8px;
+  }
+  .ai-local-profile-option {
+    min-width: 0;
+    min-height: 34px;
+    padding: 0 8px;
+    border-color: var(--color-border-subtle);
+    background: rgba(255,255,255,0.03);
+    color: var(--color-ink-dim);
+    font-size: 12px;
+    font-weight: 700;
+  }
+  .ai-local-profile-option:hover:not(:disabled) {
+    border-color: var(--color-border);
+    color: var(--color-ink);
+    background: var(--color-surface-hover);
+  }
+  .ai-local-profile-option.active {
+    border-color: rgba(65,209,255,0.48);
+    color: #f5f7ff;
+    background: linear-gradient(180deg, rgba(65,209,255,0.16), rgba(100,108,255,0.12));
+  }
   .new-branch-form {
     display: flex;
     flex-direction: column;

src/lib/TitleBar.svelte

@@ -2,7 +2,7 @@
   import { onDestroy, onMount } from "svelte";
   import { getVersion } from "@tauri-apps/api/app";
   import { getCurrentWindow } from "@tauri-apps/api/window";
-  import { Download, FolderOpen, GitBranch, GitCompare, LoaderCircle, Minus, RefreshCw, Search, Upload, X } from "@lucide/svelte";
+  import { CloudDownload, Download, FolderOpen, GitBranch, GitCompare, LoaderCircle, Minus, RefreshCw, Search, Upload, X } from "@lucide/svelte";
 
   export let branch: string = "";
   export let ahead: number = 0;
@@ -13,6 +13,7 @@
   export let operation: string = "";
   export let autoRefreshEnabled: boolean = true;
   export let autoRefreshInFlight: boolean = false;
+  export let onFetch: () => void = () => {};
   export let onPull: () => void = () => {};
   export let onPush: () => void = () => {};
   export let onRefresh: () => void = () => {};
@@ -122,6 +123,21 @@
         <span class="tb-action-label">Compare</span>
       </button>
 
+      <button
+        class="tb-action"
+        onclick={onFetch}
+        disabled={!hasRepository || isBusy}
+        title="Fetch"
+        aria-label="Fetch"
+      >
+        {#if operation === "Fetching"}
+          <LoaderCircle class="spin" size={14} aria-hidden="true" />
+        {:else}
+          <CloudDownload size={14} aria-hidden="true" />
+        {/if}
+        <span class="tb-action-label">Fetch</span>
+      </button>
+
       <button
         class="tb-action"
         onclick={onPull}

src/lib/components/AiSettingsDialog.svelte

@@ -1,8 +1,8 @@
 <script lang="ts">
   import { onMount } from "svelte";
-  import { AlertCircle, Bot, Check, Cpu, Eye, EyeOff, Globe, Key, LoaderCircle, X } from "@lucide/svelte";
+  import { AlertCircle, Bot, Check, Cpu, Eye, EyeOff, Gauge, Globe, Key, LoaderCircle, Sparkles, X, Zap } from "@lucide/svelte";
   import { credDelete, credLoad, credSave } from "../git";
-  import type { AiSettings, CommitAiProvider, LocalModelOption } from "../types";
+  import type { AiSettings, CommitAiLocalProfile, CommitAiProvider, LocalModelOption } from "../types";
 
   interface Props {
     settings: AiSettings;
@@ -23,6 +23,7 @@
 
   let provider = $state<CommitAiProvider>("local");
   let localModelId = $state("");
+  let localProfile = $state<CommitAiLocalProfile>("fast");
   let openaiModel = $state("");
   let anthropicModel = $state("");
   let customBaseUrl = $state("");
@@ -39,6 +40,7 @@
   $effect(() => {
     provider = settings.provider;
     localModelId = settings.localModelId;
+    localProfile = settings.localProfile ?? "fast";
     openaiModel = settings.openaiModel;
     anthropicModel = settings.anthropicModel;
     customBaseUrl = settings.customBaseUrl;
@@ -86,6 +88,7 @@
       onSave({
         provider,
         localModelId,
+        localProfile,
         openaiModel: openaiModel.trim() || "gpt-4o-mini",
         anthropicModel: anthropicModel.trim() || "claude-3-5-haiku-latest",
         customBaseUrl: customBaseUrl.trim(),
@@ -102,6 +105,21 @@
     return mb >= 1000 ? `${(mb / 1000).toFixed(1)} GB` : `${mb} MB`;
   }
 
+  function recommendedModelForProfile(profile: CommitAiLocalProfile): string {
+    if (profile === "balanced") return "qwen2.5-1.5b";
+    if (profile === "detailed") return "qwen2.5-3b";
+    return "qwen2.5-0.5b";
+  }
+
+  function selectLocalProfile(profile: CommitAiLocalProfile) {
+    const previousRecommended = recommendedModelForProfile(localProfile);
+    localProfile = profile;
+    const nextRecommended = recommendedModelForProfile(profile);
+    if (!localModelId || localModelId === previousRecommended) {
+      localModelId = nextRecommended;
+    }
+  }
+
   let selectedLocalModel = $derived(localModels.find((option) => option.id === localModelId));
 </script>
 
@@ -123,9 +141,16 @@
 
     <form class="ai-settings-form" onsubmit={(e) => { e.preventDefault(); void handleSave(); }}>
       <div class="ai-provider-options" role="radiogroup" aria-label="AI provider">
-        <button type="button" class="ai-provider-option" class:active={provider === "local"} onclick={() => { provider = "local"; }}>
+        <button
+          type="button"
+          class="ai-provider-option ai-provider-option-local"
+          class:active={provider === "local"}
+          disabled
+          title="Local AI is still in development and not yet available"
+        >
           <Cpu size={16} aria-hidden="true" />
           Local AI
+          <span class="ai-provider-badge">In development</span>
         </button>
         <button type="button" class="ai-provider-option" class:active={provider === "openai"} onclick={() => { provider = "openai"; }}>
           <Bot size={16} aria-hidden="true" />
@@ -142,6 +167,23 @@
       </div>
 
       {#if provider === "local"}
+        <div class="cred-field">
+          <span class="cred-field-label">Local speed</span>
+          <div class="ai-local-profile-options" role="radiogroup" aria-label="Local AI speed">
+            <button type="button" class="ai-local-profile-option" class:active={localProfile === "fast"} onclick={() => selectLocalProfile("fast")}>
+              <Zap size={15} aria-hidden="true" />
+              Fast
+            </button>
+            <button type="button" class="ai-local-profile-option" class:active={localProfile === "balanced"} onclick={() => selectLocalProfile("balanced")}>
+              <Gauge size={15} aria-hidden="true" />
+              Balanced
+            </button>
+            <button type="button" class="ai-local-profile-option" class:active={localProfile === "detailed"} onclick={() => selectLocalProfile("detailed")}>
+              <Sparkles size={15} aria-hidden="true" />
+              Detailed
+            </button>
+          </div>
+        </div>
         <label class="cred-field">
           <span class="cred-field-label">Model</span>
           <select bind:value={localModelId}>
@@ -156,6 +198,7 @@
             Switching downloads the model{selectedLocalModel ? ` (${formatSize(selectedLocalModel.approx_size_mb)})` : ""}
             in the background — depending on your internet connection this can take several minutes.
             After that it stays cached locally and loads instantly on the next start.
+            The speed setting only changes Local AI; API providers keep their existing prompt.
           </span>
         </div>
       {:else if provider === "openai"}

src/lib/components/CredentialDialog.svelte

@@ -14,7 +14,7 @@
   } from "@lucide/svelte";
 
   interface Props {
-    action: "push" | "pull";
+    action: "push" | "pull" | "fetch";
     error: string;
     isBusy: boolean;
     onSubmit: (username: string, password: string, save: boolean, expiresAt: string | null) => void;
@@ -43,8 +43,10 @@
     password.trim().length > 0 &&
     (mode === "token" || username.trim().length > 0),
   );
-  let actionLabel = $derived(action === "push" ? "Push" : "Pull");
+  let actionLabel = $derived(action === "push" ? "Push" : action === "fetch" ? "Fetch" : "Pull");
-  let actionTitle = $derived(action === "push" ? "Authenticate push" : "Authenticate pull");
+  let actionTitle = $derived(
+    action === "push" ? "Authenticate push" : action === "fetch" ? "Authenticate fetch" : "Authenticate pull",
+  );
   let actionHint = $derived(action === "push"
     ? "The remote needs write access. Use a password or a token with the appropriate repository permissions."
     : "The remote needs access to the repository. Use your Git credentials or a personal access token.");

src/lib/components/HistoryPanel.svelte

@@ -113,6 +113,16 @@
     return file.old_path ? `${file.old_path} -> ${file.path}` : file.path;
   }
 
+  function baseName(path: string): string {
+    return path.split(/[\\/]/).filter(Boolean).pop() ?? path;
+  }
+
+  function commitFileName(file: GitCommitFile): string {
+    return file.old_path
+      ? `${baseName(file.old_path)} -> ${baseName(file.path)}`
+      : baseName(file.path);
+  }
+
   function formatCommitDate(value: string): string {
     const date = new Date(value);
     if (Number.isNaN(date.getTime())) return value;
@@ -208,10 +218,10 @@
                         type="button"
                         onclick={() => onPreviewCommitFile(item, file)}
                         disabled={isBusy}
-                        title="Show differences before restoring"
+                        title={`Show differences before restoring - ${displayCommitFile(file)}`}
                       >
                         <span class={`status-badge ${file.status}`}>{statusLabel(file.status)}</span>
-                        <strong>{displayCommitFile(file)}</strong>
+                        <strong>{commitFileName(file)}</strong>
                       </button>
                     {/each}
                   </div>

src/lib/git.ts

@@ -1,6 +1,7 @@
 import { invoke } from "@tauri-apps/api/core";
 
 import type {
+  CommitAiLocalProfile,
   CommitAiProvider,
   CommitAiStatus,
   ConflictFile,
@@ -36,6 +37,12 @@ export function getStatus(path: string): Promise<GitStatus> {
   return invoke<GitStatus>("get_status", { path });
 }
 
+// Sets the taskbar icon badge to ahead + behind + changed status files (0 clears it). Windows only — a no-op on
+// other platforms, since Windows has no native numeric badge to fall back to.
+export function setSyncBadge(ahead: number, behind: number, changes: number): Promise<void> {
+  return invoke<void>("set_sync_badge", { ahead, behind, changes });
+}
+
 export function listBranches(path: string): Promise<GitBranch[]> {
   return invoke<GitBranch[]>("list_branches", { path });
 }
@@ -112,6 +119,7 @@ export function commitAiLocalModels(): Promise<LocalModelOption[]> {
 export interface CommitAiGenerateOptions {
   notes?: string;
   provider: CommitAiProvider;
+  localProfile?: CommitAiLocalProfile;
   model?: string;
   apiKey?: string;
   baseUrl?: string;
@@ -122,6 +130,7 @@ export function commitAiGenerate(path: string, options: CommitAiGenerateOptions)
     path,
     notes: options.notes,
     provider: options.provider,
+    localProfile: options.localProfile,
     model: options.model,
     apiKey: options.apiKey,
     baseUrl: options.baseUrl,
@@ -132,6 +141,10 @@ export function pull(path: string, username?: string, password?: string): Promis
   return invoke<GitStatus>("pull", { path, username: username ?? null, password: password ?? null });
 }
 
+export function fetchRemote(path: string, username?: string, password?: string): Promise<GitStatus> {
+  return invoke<GitStatus>("fetch", { path, username: username ?? null, password: password ?? null });
+}
+
 export function push(path: string, username?: string, password?: string): Promise<GitStatus> {
   return invoke<GitStatus>("push", { path, username: username ?? null, password: password ?? null });
 }

src/lib/types.ts

@@ -9,6 +9,7 @@ export type FileStatusKind =
 
 export type CommitAiPhase = "idle" | "loading" | "ready" | "error";
 export type CommitAiProvider = "local" | "openai" | "anthropic" | "custom";
+export type CommitAiLocalProfile = "fast" | "balanced" | "detailed";
 
 export interface CommitAiStatus {
   phase: CommitAiPhase;
@@ -25,6 +26,7 @@ export interface LocalModelOption {
 export interface AiSettings {
   provider: CommitAiProvider;
   localModelId: string;
+  localProfile: CommitAiLocalProfile;
   openaiModel: string;
   anthropicModel: string;
   customBaseUrl: string;