internal/rosa: use string pair for files

This is a much cleaner representation than the separator syntax.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/azalea/evaluate.go

@@ -91,7 +91,7 @@ type TypeError struct {
 }
 
 func (e TypeError) Error() string {
-	return "expected " + e.Asserted.String() + ", got " + e.Concrete.String()
+	return fmt.Sprintf("expected %s, got %s", e.Asserted, e.Concrete)
 }
 
 func (e TypeError) Is(err error) bool {

internal/rosa/package/glib/package.az

@@ -10,10 +10,10 @@ package glib {
 		checksum = "Rkszn6W4RHjyspyqfXdVAVawdwDJCuS0Zu0f7qot7tbJhnw2fUDoUUJB40m-1MCX";
 	};
 
-	files = [
-		"/etc/machine-id:stub-machine-id-fhs",
-		"/system/var/lib/dbus/machine-id:stub-machine-id",
-	];
+	files = {
+		"/etc/machine-id": "stub-machine-id-fhs";
+		"/system/var/lib/dbus/machine-id": "stub-machine-id";
+	};
 
 	exec = meson {
 		setup = {

internal/rosa/package/kernel/package.az

@@ -17,10 +17,10 @@ package kernel-headers {
 
 	source = kernel-source;
 
-	files = [
+	files = {
 		// updated manually for API changes
-		"version.h",
-	];
+		"version.h";
+	};
 	toyboxEarly = true;
 
 	exec = make {
@@ -61,16 +61,16 @@ package kernel {
 		"f54a91f5337cd918eb86cf600320d25b6cfd8209.patch",
 		"6ce6fbfddc5b127e4f57c3b5bfdcf40239a4fc2f.patch",
 	];
-	files = [
-		arch {
-			amd64 = ".config:kernel_amd64.config";
-			arm64 = ".config:kernel_arm64.config";
-			riscv64 = ".config:kernel_riscv64.config";
-		},
+	files = {
+		".config": arch {
+			amd64 = "kernel_amd64.config";
+			arm64 = "kernel_arm64.config";
+			riscv64 = "kernel_riscv64.config";
+		};
 
-		".installkernel:installkernel",
-		".depmod:depmod",
-	];
+		".installkernel": "installkernel";
+		".depmod": "depmod";
+	};
 
 	env = [
 		"PATH=/system/sbin",

internal/rosa/package/libarchive/package.az

@@ -10,7 +10,7 @@ package libarchive {
 		checksum = "CUJK4MDQmZmATClgQBH2Wt-7Ts4iiSUlg1J_TVb6-5IK3rVUgVLIMc5k-bnWB9w3";
 	};
 
-	files = [ "CTestCustom.cmake" ];
+	files = { "CTestCustom.cmake"; };
 
 	writable = true;
 	early = "\ninstall -Dv /usr/src/CTestCustom.cmake /cure/\n";

internal/rosa/state.go

@@ -899,7 +899,7 @@ func (ctx *evalContext) pf(
 	var (
 		attr    PackageAttr
 		patches []string
-		files   []string
+		files   []KV
 		excl    bool
 		early   bool
 
@@ -965,16 +965,17 @@ func (ctx *evalContext) pf(
 
 	for _, pair := range files {
 		var pathname *check.Absolute
-		dst, src, ok := strings.Cut(pair, ":")
-		if !ok {
-			src, dst = dst, filepath.Base(dst)
+		if pathname, err = check.NewAbs(pair[0]); err != nil {
+			pathname = AbsUsrSrc.Append(pair[0])
+			err = nil
 		}
-		if pathname, err = check.NewAbs(dst); err != nil {
-			pathname = AbsUsrSrc.Append(dst)
+
+		if pair[1] == "" {
+			pair[1] = pair[0]
 		}
 
 		var p []byte
-		p, err = fs.ReadFile(ctx.b, src)
+		p, err = fs.ReadFile(ctx.b, pair[1])
 		if err != nil {
 			return
 		}
@@ -982,8 +983,8 @@ func (ctx *evalContext) pf(
 		attr.Paths = append(attr.Paths, pkg.Path(
 			pathname,
 			false,
-			pkg.NewFile(filepath.Base(dst), p),
-		))
+			pkg.NewFile(filepath.Base(pair[0]), p)),
+		)
 	}
 
 	if excl {