Auto insert the version number into the Cargo.toml files.

PiperOrigin-RevId: 698432644

rust/BUILD

@@ -69,6 +69,18 @@ PROTOBUF_SHARED = [
     # go/keep-sorted end
 ]
 
+# All Rust source files; this is used for packaging up a crate.
+ALL_RUST_SRCS = PROTOBUF_SHARED + [
+    # go/keep-sorted start
+    "cpp.rs",
+    "gtest_matchers.rs",
+    "gtest_matchers_impl.rs",
+    "protobuf.rs",
+    "upb.rs",
+    "utf8.rs",
+    # go/keep-sorted end
+]
+
 # The Rust Protobuf runtime using the upb kernel.
 #
 # `rust_upb_proto_library` implicitly depends on this target. This target cannot depend on
@@ -255,7 +267,7 @@ SRC_ROOT = "rust"
 
 pkg_files(
     name = "rust_protobuf_src",
-    srcs = glob(["*"]),
+    srcs = ALL_RUST_SRCS,
     strip_prefix = strip_prefix.from_root(SRC_ROOT),
 )
 

rust/cargo/BUILD

@@ -1,5 +1,17 @@
+load("//:protobuf_version.bzl", "PROTOBUF_RUST_VERSION")
+
+genrule(
+    name = "gen_cargo_toml",
+    srcs = ["Cargo-template.toml"],
+    outs = ["Cargo.toml"],
+    cmd = "cat $(SRCS) | sed -e 's/{{VERSION}}/{0}-beta/g' > $(OUTS)".format(PROTOBUF_RUST_VERSION),
+)
+
 filegroup(
     name = "srcs",
-    srcs = glob(["**/*"]),
+    srcs = [
+        "build.rs",
+        ":gen_cargo_toml",
+    ],
     visibility = ["//rust:__subpackages__"],
 )

rust/cargo/Cargo-template.toml

@@ -7,8 +7,8 @@
 
 [package]
 name = "protobuf"
-version = "4.27.3-beta.0"
-edition = "2021"
+version = "{VERSION}"
+edition = "2021"  # The Rust edition (not to be confused with Protobuf Edition).
 links = "libupb"
 license = "BSD-3-Clause"
 rust-version = "1.74"

rust/protobuf_codegen/BUILD

@@ -1,5 +1,16 @@
+load("//:protobuf_version.bzl", "PROTOBUF_RUST_VERSION")
+
+genrule(
+    name = "gen_cargo_toml",
+    srcs = ["Cargo-template.toml"],
+    outs = ["Cargo.toml"],
+    cmd = "cat $(SRCS) | sed -e 's/{{VERSION}}/{0}-beta/g' > $(OUTS)".format(PROTOBUF_RUST_VERSION),
+)
+
 filegroup(
     name = "srcs",
-    srcs = glob(["**/*"]),
+    srcs = [
+        ":gen_cargo_toml",
+    ] + glob(["src/**/*"]),
     visibility = ["//rust:__subpackages__"],
 )

rust/protobuf_codegen/Cargo-template.toml

@@ -1,8 +1,8 @@
 [package]
-edition = "2021"
+edition = "2021"   # The Rust edition (not to be confused with Protobuf Edition).
 name = "protobuf-codegen"
 readme = "README.md"
-version = "4.27.3-beta.0"
+version = "{VERSION}"
 description = "Code generator for Rust Protocol Buffers bindings"
 license = "BSD-3-Clause"
 rust-version = "1.74"