Add local tarball install #5812 (#6118)

* check if the value passed for add command is a local tarball and install it, test for local tarball

* use bunExe()

* use absolute path to copy tarball

* fmt ts

2 files changed, 4 insertions, 2 deletions

diff --git a/src/install/extract_tarball.zig b/src/install/extract_tarball.zig
index 2bcad3a53..d0dff72c5 100644
--- a/src/install/extract_tarball.zig
+++ b/src/install/extract_tarball.zig
@@ -374,8 +374,10 @@ fn extract(this: *const ExtractTarball, tgz_bytes: []const u8) !Install.ExtractD
     }
 
     const ret_json_path = try FileSystem.instance.dirname_store.append(@TypeOf(json_path), json_path);
+    const url = try FileSystem.instance.dirname_store.append(@TypeOf(this.url.slice()), this.url.slice());
+
     return .{
-        .url = this.url.slice(),
+        .url = url,
         .resolved = resolved,
         .json_path = ret_json_path,
         .json_buf = json_buf,
diff --git a/src/install/install.zig b/src/install/install.zig
index 7c58190da..131adb00e 100644
--- a/src/install/install.zig
+++ b/src/install/install.zig
@@ -6089,7 +6089,7 @@ pub const PackageManager = struct {
 
                 var value = input;
                 var alias: ?string = null;
-                if (strings.isNPMPackageName(input)) {
+                if (!Dependency.isTarball(input) and strings.isNPMPackageName(input)) {
                     alias = input;
                     value = input[input.len..];
                 } else if (input.len > 1) {