cargo: upgrade to protobuf 3.7 (#541)

* feat!: upgrade to protobuf 3.7

- keep some of the `get_` and `set_` methods around and mark them as deprecated
- keep api changes to a minimal

Signed-off-by: Sven Kanoldt <[email protected]>

* fix: fix all issues related to api combatibility when the protobuf feature is not enabled

Signed-off-by: Sven Kanoldt <[email protected]>

* implement review feedback and close all minor remarks

Signed-off-by: Sven Kanoldt <[email protected]>

* fix ci errors

Signed-off-by: Sven Kanoldt <[email protected]>

---------

Signed-off-by: Sven Kanoldt <[email protected]>
Signed-off-by: Sven Kanoldt <[email protected]>

Author: sassman

Cargo.toml

@@ -17,7 +17,7 @@ features = ["nightly"]
 
 [features]
 default = ["protobuf"]
-gen = ["protobuf-codegen-pure"]
+gen = ["protobuf-codegen"]
 nightly = ["libc"]
 process = ["libc", "procfs"]
 push = ["reqwest", "libc", "protobuf"]
@@ -28,7 +28,7 @@ fnv = "^1.0"
 lazy_static = "^1.4"
 libc = { version = "^0.2", optional = true }
 parking_lot = "^0.12"
-protobuf = { version = "^2.0", optional = true }
+protobuf = { version = "^3.7.2", optional = true }
 memchr = "^2.3"
 reqwest = { version = "^0.12", features = ["blocking"], optional = true }
 thiserror = "^2.0"
@@ -43,7 +43,7 @@ hyper = { version = "^0.14", features = ["server", "http1", "tcp"] }
 tokio = { version = "^1.0", features = ["macros", "rt-multi-thread"] }
 
 [build-dependencies]
-protobuf-codegen-pure = { version = "^2.0", optional = true }
+protobuf-codegen = { version = "^3.7.2", optional = true }
 
 [workspace]
 members = ["static-metric"]

build.rs

@@ -2,13 +2,12 @@
 
 #[cfg(feature = "gen")]
 fn generate_protobuf_binding_file() {
-    protobuf_codegen_pure::run(protobuf_codegen_pure::Args {
-        out_dir: "proto",
-        input: &["proto/proto_model.proto"],
-        includes: &["proto"],
-        ..Default::default()
-    })
-    .unwrap();
+    protobuf_codegen::Codegen::new()
+        .out_dir("proto")
+        .inputs(["proto/proto_model.proto"])
+        .includes(["proto"])
+        .run()
+        .expect("Protobuf codegen failed");
 }
 
 #[cfg(not(feature = "gen"))]

proto/mod.rs

@@ -0,0 +1,3 @@
+// @generated
+
+pub mod proto_model;