feat(install): automatically migrate package-lock.json to bun.lockb (#6352)

* work so far

* stuff

* a

* basics work

* stuff

* yoo

* build lockfile

* correct

* f

* a

* install fixture havent tested

* i made it worse

* lol

* be more reasonable

* make the test easier to pass because bun install doesn't handle obscure lockfile edge cases :/

* a

* works now

* ok

* a

* a

* cool

* nah

* fix stuff

* l

* a

* idfk

* LAME

* prettier errors

* does this fix tests?

* Add more safety checks to Integrity

* Add another check

* More careful lifetime handling

* Fix linux debugger issue

* a

* tmp dir and snapshot test

---------

Co-authored-by: Jarred SUmner <jarred@jarredsumner.com>

build.zig

@@ -145,7 +145,22 @@ pub fn build(b: *Build) !void {
     };
 }
 
+const required_zig_version = "0.12.0-dev.163+6780a6bbf";
 pub fn build_(b: *Build) !void {
+    if (!std.mem.eql(u8, @import("builtin").zig_version_string, required_zig_version)) {
+        const colors = std.io.getStdErr().supportsAnsiEscapeCodes();
+        std.debug.print(
+            "{s}WARNING:\nBun requires zig version '{s}', but found '{s}', build may fail...\nMake sure you installed the right version as per https://bun.sh/docs/project/development#install-zig\n{s}You can update to the right version using 'zigup {s}'\n\n",
+            .{
+                if (colors) "\x1b[1;33m" else "",
+                required_zig_version,
+                @import("builtin").zig_version_string,
+                if (colors) "\x1b[0m" else "",
+                required_zig_version,
+            },
+        );
+    }
+
     // Standard target options allows the person running `zig build` to choose
     // what target to build for. Here we do not override the defaults, which
     // means any target is allowed, and the default is native. Other options