add gitignore

README.md

@@ -12,11 +12,21 @@ A GitHub Desktop-style git client that runs in your terminal. Use the mouse or t
 
 This makes a single file that runs without Python or Textual installed.
 
-- **Windows:** double-click `build.bat`. You get `dist\gitdesk.exe`.
+- **Windows:** double-click `build.bat`. In PowerShell type `.\build.bat`; PowerShell won't
+  run it without the `.\`. You get `dist\gitdesk.exe`.
 - **Linux / macOS:** run `./build.sh`. You get `dist/gitdesk`.
 
+`build.py` does the work, and the .bat/.sh just start it. It:
+- sets up its own environment in `.build`;
+- installs PyInstaller and Textual;
+- builds the exe;
+- test-starts the new exe to make sure it works;
+- logs everything to `build.log`.
+
+If something goes wrong it says why in plain English (old exe still open, antivirus,
+OneDrive, no internet...). Send `build.log` over if the reason isn't clear.
+
 Build on the system you want to run it on: a Windows exe has to be built on Windows.
-The scripts use their own `.build-venv` folder and don't touch your Python install.
 The exe takes a second or two to start because it unpacks itself first.
 
 ## Run
@@ -61,6 +71,16 @@ Tip: put this folder on your PATH (Windows), or symlink it on Linux/macOS
   Discard keeps a backup in Stashed changes, so it can be undone. More → Discard
   ticked changes does several files at once. Below the list are Stash all / Stashed, and
   the commit summary + description.
+- **Right-click a changed file** (or press `m` / Shift+F10) for the same menu as GitHub Desktop:
+  - **Discard changes…**
+  - **Ignore file**, **Ignore folder ▸** (pick which parent folder), or **Ignore all .ext files**.
+    Each one adds a line to the repo's `.gitignore`.
+  - **Copy file path / relative path**
+  - **Show in Explorer**, **Open in VS Code**, **Open with default program**
+
+  Ignoring a file git already tracks doesn't hide its changes, so if the new rule covers tracked
+  files, gitdesk offers **Stop tracking**. The files stay on your disk and leave the repository
+  in your next commit.
 - **History tab:** recent commits (↑ = not pushed yet). Click one to see what changed,
   or **View on GitHub** to open that commit's page.
 - **View on GitHub** (`g`, More menu, or the card on the "No local changes" screen) opens
@@ -94,4 +114,4 @@ Tip: put this folder on your PATH (Windows), or symlink it on Linux/macOS
   behind by a crashed git, it offers **Remove lock file & retry**.
 
 Keys: `f` fetch · `p` pull · `u` push · `b` branch · `s` stash · `t` stashes · `d` discard ·
-`o` add local repo · `n` new repo · `c` clone · `g` view on web · `l` log · `r` refresh · `space` tick/untick file · `q` quit
+`o` add local repo · `n` new repo · `c` clone · `g` view on web · `l` log · `r` refresh · `space` tick/untick file · `m` file menu · `q` quit