create compatibility layer for mysql-admutils commands

build.rs

@@ -0,0 +1,38 @@
+#[cfg(feature = "mysql-admutils-compatibility")]
+use anyhow::anyhow;
+#[cfg(feature = "mysql-admutils-compatibility")]
+use std::{env, os::unix::fs::symlink, path::PathBuf};
+
+fn main() -> anyhow::Result<()> {
+    #[cfg(feature = "mysql-admutils-compatibility")]
+    {
+        // NOTE: This is slightly illegal, and depends on implementation details.
+        //       But it is only here for ease of testing the compatibility layer,
+        //       and not critical in any way. Considering the code is never going
+        //       to be used as a library, it should be fine.
+        let target_profile_dir: PathBuf = PathBuf::from(env::var("OUT_DIR")?)
+            .parent()
+            .and_then(|p| p.parent())
+            .and_then(|p| p.parent())
+            .ok_or(anyhow!("Could not resolve target profile directory"))?
+            .to_path_buf();
+
+        dbg!(&target_profile_dir);
+
+        if !target_profile_dir.join("mysql-useradm").exists() {
+            symlink(
+                target_profile_dir.join("mysqladm"),
+                target_profile_dir.join("mysql-useradm"),
+            )?;
+        }
+
+        if !target_profile_dir.join("mysql-dbadm").exists() {
+            symlink(
+                target_profile_dir.join("mysqladm"),
+                target_profile_dir.join("mysql-dbadm"),
+            )?;
+        }
+    }
+
+    Ok(())
+}