Allow packages to specify their minimum compiler version

crates/typst-syntax/src/file.rs

@@ -265,6 +265,17 @@ pub struct PackageVersion {
     pub patch: u32,
 }
 
+impl PackageVersion {
+    /// The current compiler version.
+    pub fn compiler() -> Self {
+        Self {
+            major: env!("CARGO_PKG_VERSION_MAJOR").parse().unwrap(),
+            minor: env!("CARGO_PKG_VERSION_MINOR").parse().unwrap(),
+            patch: env!("CARGO_PKG_VERSION_PATCH").parse().unwrap(),
+        }
+    }
+}
+
 impl FromStr for PackageVersion {
     type Err = EcoString;
 

crates/typst/src/eval/mod.rs

@@ -1920,6 +1920,16 @@ impl PackageManifest {
             );
         }
 
+        if let Some(compiler) = self.package.compiler {
+            let current = PackageVersion::compiler();
+            if current < compiler {
+                bail!(
+                    "package requires typst {compiler} or newer \
+                     (current version is {current})"
+                );
+            }
+        }
+
         Ok(())
     }
 }
@@ -1935,6 +1945,8 @@ struct PackageInfo {
     version: PackageVersion,
     /// The path of the entrypoint into the package.
     entrypoint: EcoString,
+    /// The minimum required compiler version for the package.
+    compiler: Option<PackageVersion>,
 }
 
 impl Eval for ast::LoopBreak<'_> {

tests/packages/future-0.1.0/lib.typ

@@ -0,0 +1 @@
+#future

tests/packages/future-0.1.0/typst.toml

@@ -0,0 +1,5 @@
+[package]
+name = "future"
+version = "0.1.0"
+entrypoint = "lib.typ"
+compiler = "1.0.0"

tests/src/tests.rs

@@ -25,7 +25,7 @@ use typst::doc::{Document, Frame, FrameItem, Meta};
 use typst::eval::{eco_format, func, Bytes, Datetime, Library, NoneValue, Tracer, Value};
 use typst::font::{Font, FontBook};
 use typst::geom::{Abs, Color, RgbaColor, Smart};
-use typst::syntax::{FileId, Source, Span, SyntaxNode, VirtualPath};
+use typst::syntax::{FileId, PackageVersion, Source, Span, SyntaxNode, VirtualPath};
 use typst::{World, WorldExt};
 use typst_library::layout::{Margin, PageElem};
 use typst_library::text::{TextElem, TextSize};
@@ -719,7 +719,10 @@ fn parse_part_metadata(source: &Source) -> TestPartMetadata {
             let mut s = Scanner::new(expectation);
             let range = range(&mut s);
             let rest = if range.is_some() { s.after() } else { s.string() };
-            let message = rest.trim().into();
+            let message = rest
+                .trim()
+                .replace("VERSION", &PackageVersion::compiler().to_string())
+                .into();
             annotations.insert(Annotation { kind, range, message });
         }
     }

tests/typ/compiler/packages.typ

@@ -11,6 +11,11 @@
 #import "@test/adder:0.1.0": add
 #test(add(2, 8), 10)
 
+---
+// Test too high required compiler version.
+// Error: 9-29 package requires typst 1.0.0 or newer (current version is VERSION)
+#import "@test/future:0.1.0": future
+
 ---
 // Error: 9-13 `@` is not a valid package namespace
 #import "@@": *