use gix_path::env::shell() to get the shell in git2-hooks (#2612)

Co-authored-by: Johannes Agricola <naseschwarz@users.noreply.github.com>

Cargo.lock

@@ -1138,6 +1138,7 @@ version = "0.4.0"
 dependencies = [
  "git2",
  "git2-testing",
+ "gix-path",
  "log",
  "pretty_assertions",
  "shellexpand",

git2-hooks/Cargo.toml

@@ -14,6 +14,7 @@ keywords = ["git"]
 
 [dependencies]
 git2 = ">=0.17"
+gix-path = "0.10"
 log = "0.4"
 shellexpand = "3.1"
 thiserror = "2.0"

git2-hooks/src/hookspath.rs

@@ -225,7 +225,7 @@ impl HookPaths {
 }
 
 fn sh_command() -> Command {
-	let mut command = Command::new(sh_path());
+	let mut command = Command::new(gix_path::env::shell());
 
 	if cfg!(windows) {
 		// This call forces Command to handle the Path environment correctly on windows,
@@ -243,30 +243,6 @@ fn sh_command() -> Command {
 	command
 }
 
-/// Get the path to the sh executable.
-/// On Windows get the sh.exe bundled with Git for Windows
-pub fn sh_path() -> PathBuf {
-	if cfg!(windows) {
-		Command::new("where.exe")
-			.arg("git")
-			.output()
-			.ok()
-			.map(|out| {
-				PathBuf::from(Into::<String>::into(
-					String::from_utf8_lossy(&out.stdout),
-				))
-			})
-			.as_deref()
-			.and_then(Path::parent)
-			.and_then(Path::parent)
-			.map(|p| p.join("usr/bin/sh.exe"))
-			.filter(|p| p.exists())
-			.unwrap_or_else(|| "sh".into())
-	} else {
-		"sh".into()
-	}
-}
-
 #[cfg(unix)]
 fn is_executable(path: &Path) -> bool {
 	use std::os::unix::fs::PermissionsExt;