ci: derive crate versions from git tag at release time

Cargo.toml and .cabal files now use 0.0.0-dev placeholders.
The release workflow extracts the version from the git tag (v*.*.*)
and patches all manifest files before publishing to crates.io
and Hackage. Removes the need to manually bump version numbers.

Author: markovejnovic

.github/workflows/release.yml

@@ -20,37 +20,44 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
 
+      - name: Set version from tag
+        run: |
+          VERSION="${GITHUB_REF_NAME#v}"
+          echo "VERSION=$VERSION" >> "$GITHUB_ENV"
+          sed -i "0,/version = \"0.0.0-dev\"/s//version = \"$VERSION\"/" hsrs-macros/Cargo.toml
+          sed -i "0,/version = \"0.0.0-dev\"/s//version = \"$VERSION\"/" hsrs/Cargo.toml
+          sed -i "0,/version = \"0.0.0-dev\"/s//version = \"$VERSION\"/" hsrs-codegen/Cargo.toml
+          sed -i "s/hsrs-macros = { version = \"0.0.0-dev\"/hsrs-macros = { version = \"$VERSION\"/" hsrs/Cargo.toml
+          cargo check --workspace
+
       - name: Publish hsrs-macros
         run: |
-          VERSION=$(cargo metadata --no-deps --format-version=1 | jq -r '.packages[] | select(.name=="hsrs-macros") | .version')
           if curl -sf "https://crates.io/api/v1/crates/hsrs-macros/$VERSION" > /dev/null 2>&1; then
             echo "hsrs-macros@$VERSION already published, skipping"
           else
-            cargo publish -p hsrs-macros --token ${{ secrets.CRATES_IO_TOKEN }}
+            cargo publish -p hsrs-macros --token ${{ secrets.CRATES_IO_TOKEN }} --allow-dirty
           fi
 
       - name: Wait for crates.io index
         run: sleep 30
 
       - name: Publish hsrs
         run: |
-          VERSION=$(cargo metadata --no-deps --format-version=1 | jq -r '.packages[] | select(.name=="hsrs") | .version')
           if curl -sf "https://crates.io/api/v1/crates/hsrs/$VERSION" > /dev/null 2>&1; then
             echo "hsrs@$VERSION already published, skipping"
           else
-            cargo publish -p hsrs --token ${{ secrets.CRATES_IO_TOKEN }}
+            cargo publish -p hsrs --token ${{ secrets.CRATES_IO_TOKEN }} --allow-dirty
           fi
 
       - name: Wait for crates.io index
         run: sleep 30
 
       - name: Publish hsrs-codegen
         run: |
-          VERSION=$(cargo metadata --no-deps --format-version=1 | jq -r '.packages[] | select(.name=="hsrs-codegen") | .version')
           if curl -sf "https://crates.io/api/v1/crates/hsrs-codegen/$VERSION" > /dev/null 2>&1; then
             echo "hsrs-codegen@$VERSION already published, skipping"
           else
-            cargo publish -p hsrs-codegen --token ${{ secrets.CRATES_IO_TOKEN }}
+            cargo publish -p hsrs-codegen --token ${{ secrets.CRATES_IO_TOKEN }} --allow-dirty
           fi
 
   hackage:
@@ -66,8 +73,22 @@ jobs:
           ghc-version: "9.6"
           cabal-version: "3.14"
 
+      - name: Set version from tag
+        run: |
+          VERSION="${GITHUB_REF_NAME#v}"
+          CABAL_VERSION=$(echo "$VERSION" | sed 's/\./\./g; s/^\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)$/\1.\2.\3.0/')
+          sed -i "s/^version:       0.0.0.0/version:       $CABAL_VERSION/" hsrs.cabal
+
       - name: Build sdist
         run: cabal sdist
 
       - name: Upload to Hackage
-        run: cabal upload --publish dist-newstyle/sdist/hsrs-*.tar.gz --token ${{ secrets.HACKAGE_TOKEN }}
+        run: |
+          VERSION="${GITHUB_REF_NAME#v}"
+          CABAL_VERSION=$(echo "$VERSION" | sed 's/^\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)$/\1.\2.\3.0/')
+          TARBALL="dist-newstyle/sdist/hsrs-${CABAL_VERSION}.tar.gz"
+          if curl -sf "https://hackage.haskell.org/package/hsrs-${CABAL_VERSION}" > /dev/null 2>&1; then
+            echo "hsrs@$CABAL_VERSION already published on Hackage, skipping"
+          else
+            cabal upload --publish "$TARBALL" --token ${{ secrets.HACKAGE_TOKEN }}
+          fi

hsrs-codegen/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hsrs-codegen"
-version = "0.1.0"
+version = "0.0.0-dev"
 edition = "2024"
 license = "MIT OR Apache-2.0"
 description = "Haskell code generator for hsrs FFI bindings"

hsrs-codegen/tests/cli.rs

@@ -179,5 +179,5 @@ fn version_flag_exits_successfully() {
     let output = hsrs_codegen().arg("--version").output().unwrap();
     assert!(output.status.success());
     let stdout = String::from_utf8_lossy(&output.stdout);
-    assert!(stdout.contains("0.1.0"));
+    assert!(stdout.contains(env!("CARGO_PKG_VERSION")));
 }

hsrs-haskell/hsrs.cabal

@@ -1,6 +1,6 @@
 cabal-version: 2.4
 name:          hsrs
-version:       0.1.0.0
+version:       0.0.0.0
 synopsis:      Runtime support for hsrs-generated Haskell FFI bindings
 description:
   Provides the Haskell-side runtime needed by code generated

hsrs-macros/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hsrs-macros"
-version = "0.1.0"
+version = "0.0.0-dev"
 edition = "2024"
 license = "MIT OR Apache-2.0"
 description = "Proc macros for hsrs Rust-to-Haskell FFI bindings"

hsrs/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hsrs"
-version = "0.1.0"
+version = "0.0.0-dev"
 edition = "2024"
 license = "MIT OR Apache-2.0"
 description = "Type-safe Rust-to-Haskell FFI with automatic binding generation"
@@ -10,7 +10,7 @@ keywords = ["ffi", "haskell", "bindings", "codegen"]
 categories = ["development-tools::ffi", "api-bindings"]
 
 [dependencies]
-hsrs-macros = { version = "0.1.0", path = "../hsrs-macros" }
+hsrs-macros = { version = "0.0.0-dev", path = "../hsrs-macros" }
 safer-ffi = { version = "0.2.0-rc1", features = ["alloc"] }
 borsh = { workspace = true }