Debugger implementation (#13433)

###  DISCLAIMER

> As of 6th March 2025, debugger is still in development. We plan to
merge it behind a staff-only feature flag for staff use only, followed
by non-public release and then finally a public one (akin to how Git
panel release was handled). This is done to ensure the best experience
when it gets released.

### END OF DISCLAIMER 

**The current state of the debugger implementation:**


https://github.com/user-attachments/assets/c4deff07-80dd-4dc6-ad2e-0c252a478fe9


https://github.com/user-attachments/assets/e1ed2345-b750-4bb6-9c97-50961b76904f

----

All the todo's are in the following channel, so it's easier to work on
this together:
https://zed.dev/channel/zed-debugger-11370

If you are on Linux, you can use the following command to join the
channel:
```cli
zed https://zed.dev/channel/zed-debugger-11370 
```

## Current Features

- Collab
  - Breakpoints
    - Sync when you (re)join a project
    - Sync when you add/remove a breakpoint
  - Sync active debug line
  - Stack frames
    - Click on stack frame
      - View variables that belong to the stack frame
      - Visit the source file
    - Restart stack frame (if adapter supports this)
  - Variables
  - Loaded sources
  - Modules
  - Controls
    - Continue
    - Step back
      - Stepping granularity (configurable)
    - Step into
      - Stepping granularity (configurable)
    - Step over
      - Stepping granularity (configurable)
    - Step out
      - Stepping granularity (configurable)
  - Debug console
- Breakpoints
  - Log breakpoints
  - line breakpoints
  - Persistent between zed sessions (configurable)
  - Multi buffer support
  - Toggle disable/enable all breakpoints
- Stack frames
  - Click on stack frame
    - View variables that belong to the stack frame
    - Visit the source file
    - Show collapsed stack frames
  - Restart stack frame (if adapter supports this)
- Loaded sources
  - View all used loaded sources if supported by adapter.
- Modules
  - View all used modules (if adapter supports this)
- Variables
  - Copy value
  - Copy name
  - Copy memory reference
  - Set value (if adapter supports this)
  - keyboard navigation
- Debug Console
  - See logs
  - View output that was sent from debug adapter
    - Output grouping
  - Evaluate code
    - Updates the variable list
    - Auto completion
- If not supported by adapter, we will show auto-completion for existing
variables
- Debug Terminal
- Run custom commands and change env values right inside your Zed
terminal
- Attach to process (if adapter supports this)
  - Process picker
- Controls
  - Continue
  - Step back
    - Stepping granularity (configurable)
  - Step into
    - Stepping granularity (configurable)
  - Step over
    - Stepping granularity (configurable)
  - Step out
    - Stepping granularity (configurable)
  - Disconnect
  - Restart
  - Stop
- Warning when a debug session exited without hitting any breakpoint
- Debug view to see Adapter/RPC log messages
- Testing
  - Fake debug adapter
    - Fake requests & events

---

Release Notes:

- N/A

---------

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Piotr Osiewicz <peterosiewicz@gmail.com>
Co-authored-by: Piotr <piotr@zed.dev>

crates/util/src/fs.rs

@@ -1,8 +1,8 @@
-use std::path::Path;
-
 use crate::ResultExt;
+use anyhow::{bail, Result};
 use async_fs as fs;
 use futures_lite::StreamExt;
+use std::path::{Path, PathBuf};
 
 /// Removes all files and directories matching the given predicate
 pub async fn remove_matching<F>(dir: &Path, predicate: F)
@@ -26,3 +26,68 @@ where
         }
     }
 }
+
+pub async fn collect_matching<F>(dir: &Path, predicate: F) -> Vec<PathBuf>
+where
+    F: Fn(&Path) -> bool,
+{
+    let mut matching = vec![];
+
+    if let Some(mut entries) = fs::read_dir(dir).await.log_err() {
+        while let Some(entry) = entries.next().await {
+            if let Some(entry) = entry.log_err() {
+                if predicate(entry.path().as_path()) {
+                    matching.push(entry.path());
+                }
+            }
+        }
+    }
+
+    matching
+}
+
+pub async fn find_file_name_in_dir<F>(dir: &Path, predicate: F) -> Option<PathBuf>
+where
+    F: Fn(&str) -> bool,
+{
+    if let Some(mut entries) = fs::read_dir(dir).await.log_err() {
+        while let Some(entry) = entries.next().await {
+            if let Some(entry) = entry.log_err() {
+                let entry_path = entry.path();
+
+                if let Some(file_name) = entry_path
+                    .file_name()
+                    .map(|file_name| file_name.to_string_lossy())
+                {
+                    if predicate(&file_name) {
+                        return Some(entry_path);
+                    }
+                }
+            }
+        }
+    }
+
+    None
+}
+
+pub async fn move_folder_files_to_folder<P: AsRef<Path>>(
+    source_path: P,
+    target_path: P,
+) -> Result<()> {
+    if !target_path.as_ref().is_dir() {
+        bail!("Folder not found or is not a directory");
+    }
+
+    let mut entries = fs::read_dir(source_path.as_ref()).await?;
+    while let Some(entry) = entries.next().await {
+        let entry = entry?;
+        let old_path = entry.path();
+        let new_path = target_path.as_ref().join(entry.file_name());
+
+        fs::rename(&old_path, &new_path).await?;
+    }
+
+    fs::remove_dir(source_path).await?;
+
+    Ok(())
+}