feat(http): add rename_exe support for archive extraction

docs/dev-tools/backends/http.md

@@ -170,6 +170,23 @@ bin = "docker-compose"  # Rename from docker-compose-linux-x86_64 to docker-comp
 When downloading single binaries (not archives), mise automatically removes OS/arch suffixes from the filename. For example, `docker-compose-linux-x86_64` becomes `docker-compose` automatically. Use the `bin` option only when you need a specific custom name.
 :::
 
+### `rename_exe`
+
+Rename the executable inside an extracted archive to a specific name. This is useful when archives contain binaries with platform-specific names or when installing kubectl plugins that need specific naming:
+
+```toml
+[tools."http:openunison-cli"]
+version = "1.0.0"
+url = "https://nexus.tremolo.io/repository/openunison-cli/openunison-cli-v{{version}}-linux.zip"
+rename_exe = "kubectl-openunison-cli"  # Rename extracted binary for kubectl plugin
+```
+
+This works by searching for the first executable in the extracted directory (or `bin_path` if specified) and renaming it to the specified name.
+
+::: tip
+Use `bin` for renaming single binary downloads, and `rename_exe` for renaming executables inside archives.
+:::
+
 ### `format`
 
 Explicitly specify the archive format when the URL lacks a file extension or has an incorrect extension:

src/backend/http.rs

@@ -3,7 +3,7 @@ use crate::backend::VersionInfo;
 use crate::backend::backend_type::BackendType;
 use crate::backend::static_helpers::{
     clean_binary_name, get_filename_from_url, list_available_platforms_with_key,
-    lookup_platform_key, template_string, verify_artifact,
+    lookup_platform_key, rename_executable_in_dir, template_string, verify_artifact,
 };
 use crate::backend::version_list;
 use crate::cli::args::BackendArg;
@@ -397,6 +397,23 @@ impl HttpBackend {
         };
 
         file::untar(file_path, dest, &tar_opts)?;
+
+        // Handle rename_exe option for archives
+        if let Some(rename_to) = get_opt(opts, "rename_exe") {
+            let search_dir = if let Some(bin_path) = get_opt(opts, "bin_path") {
+                dest.join(&bin_path)
+            } else {
+                dest.to_path_buf()
+            };
+            let tool_name = self
+                .ba
+                .tool_name
+                .rsplit('/')
+                .next()
+                .unwrap_or(&self.ba.tool_name);
+            rename_executable_in_dir(&search_dir, &rename_to, Some(tool_name))?;
+        }
+
         Ok(ExtractionType::Archive)
     }
 
@@ -574,6 +591,7 @@ pub fn install_time_option_keys() -> Vec<String> {
         "version_json_path".into(),
         "version_expr".into(),
         "format".into(),
+        "rename_exe".into(),
     ]
 }
 

src/backend/static_helpers.rs

@@ -623,7 +623,7 @@ fn should_skip_file(file_name: &str, strict: bool) -> bool {
 /// - `tool_name`: Optional hint for finding non-executable files by name matching.
 ///   When provided, if no executable is found, will search for files matching the tool name
 ///   and make them executable before renaming.
-fn rename_executable_in_dir(
+pub fn rename_executable_in_dir(
     dir: &Path,
     new_name: &str,
     tool_name: Option<&str>,