[bun install] Lockfile saves. Starting to implement diffing

.vscode/launch.json

@@ -349,8 +349,8 @@
       "args": ["install"],
       "cwd": "/tmp/wow-such-npm",
       "env": {
-        "GOMAXPROCS": "1",
-        "BUN_MANIFEST_CACHE": "1"
+
+      
       },
       "console": "internalConsole"
     },
@@ -383,15 +383,6 @@
       "cwd": "${workspaceFolder}/src/test/fixtures",
       "console": "internalConsole"
     },
-    {
-      "type": "cppvsdbg",
-      "request": "launch",
-      "name": "Fixtures Rel",
-      "program": "${workspaceFolder}/build/macos-x86_64/bun",
-      "args": ["dev"],
-      "cwd": "${workspaceFolder}/src/test/fixtures",
-      "console": "internalConsole"
-    },
     {
       "type": "lldb",
 
@@ -486,15 +477,7 @@
       "cwd": "${workspaceFolder}/src/test/fixtures",
       "console": "internalConsole"
     },
-    {
-      "name": "esbuild",
-      "type": "go",
-      "request": "launch",
-      "mode": "debug",
-      "program": "/Users/jarred/Code/esbuild/cmd/esbuild",
-      "cwd": "/Users/jarred/Code/bun/src/test/fixtures",
-      "args": ["--bundle", "--outfile=out.esbuild.js", "await.ts"]
-    },
+ 
 
     // {
     //   "type": "lldb",

src/install/semver.zig

@@ -19,7 +19,6 @@ pub const ExternalString = extern struct {
             return Small{
                 .off = 0,
                 .len = @truncate(u32, in.len),
-                .hash = std.hash.Wyhash.hash(0, in),
             };
         }
 

src/string_immutable.zig

@@ -412,6 +412,57 @@ inline fn eqlComptimeCheckLen(a: string, comptime b: anytype, comptime check_len
     return true;
 }
 
+pub fn eqlLong(a_: string, b: string, comptime check_len: bool) bool {
+    if (comptime check_len) {
+        if (a_.len == 0) {
+            return b.len == 0;
+        }
+
+        if (a_.len != b.len) {
+            return false;
+        }
+    }
+
+    const len = b.len;
+    var dword_length = b.len >> 3;
+    var b_ptr: usize = 0;
+    const a = a_.ptr;
+
+    while (dword_length > 0) : (dword_length -= 1) {
+        const slice = b.ptr;
+        if (@bitCast(usize, a[b_ptr..len][0..@sizeOf(usize)].*) != @bitCast(usize, (slice[b_ptr..b.len])[0..@sizeOf(usize)].*))
+            return false;
+        b_ptr += @sizeOf(usize);
+        if (b_ptr == b.len) return true;
+    }
+
+    if (comptime @sizeOf(usize) == 8) {
+        if ((len & 4) != 0) {
+            const slice = b.ptr;
+            if (@bitCast(u32, a[b_ptr..len][0..@sizeOf(u32)].*) != @bitCast(u32, (slice[b_ptr..b.len])[0..@sizeOf(u32)].*))
+                return false;
+
+            b_ptr += @sizeOf(u32);
+
+            if (b_ptr == b.len) return true;
+        }
+    }
+
+    if ((len & 2) != 0) {
+        const slice = b.ptr;
+        if (@bitCast(u16, a[b_ptr..len][0..@sizeOf(u16)].*) != @bitCast(u16, b.ptr[b_ptr..len][0..@sizeOf(u16)].*))
+            return false;
+
+        b_ptr += @sizeOf(u16);
+
+        if (b_ptr == b.len) return true;
+    }
+
+    if (((len & 1) != 0) and a[b_ptr] != b[b_ptr]) return false;
+
+    return true;
+}
+
 pub inline fn append(allocator: *std.mem.Allocator, self: string, other: string) !string {
     return std.fmt.allocPrint(allocator, "{s}{s}", .{ self, other });
 }