Do not break Zed & Zed CLI compatibility

crates/cli/src/cli.rs

@@ -1,7 +1,5 @@
 pub use ipc_channel::ipc;
 use serde::{Deserialize, Serialize};
-use std::path::PathBuf;
-use util::paths::PathLikeWithPosition;
 
 #[derive(Serialize, Deserialize)]
 pub struct IpcHandshake {
@@ -11,11 +9,12 @@ pub struct IpcHandshake {
 
 #[derive(Debug, Serialize, Deserialize)]
 pub enum CliRequest {
-    Open {
-        // TODO kb old cli won't be able to communicate to new Zed with this change
-        paths: Vec<PathLikeWithPosition<PathBuf>>,
-        wait: bool,
-    },
+    // The filed is named `path` for compatibility, but now CLI can request
+    // opening a path at a certain row and/or column: `some/path:123` and `some/path:123:456`.
+    //
+    // Since Zed CLI has to be installed separately, there can be situations when old CLI is
+    // querying new Zed editors, support both formats by using `String` here and parsing it on Zed side later.
+    Open { paths: Vec<String>, wait: bool },
 }
 
 #[derive(Debug, Serialize, Deserialize)]

crates/cli/src/main.rs

@@ -79,10 +79,11 @@ fn main() -> Result<()> {
             .paths_with_position
             .into_iter()
             .map(|path_with_position| {
-                path_with_position.convert_path(|path| {
+                let path_with_position = path_with_position.convert_path(|path| {
                     fs::canonicalize(&path)
                         .with_context(|| format!("path {path:?} canonicalization"))
-                })
+                })?;
+                Ok(path_with_position.to_string(|path| path.display().to_string()))
             })
             .collect::<Result<_>>()?,
         wait: args.wait,