feat: Support for curl and disabled transports

Cargo.toml

@@ -18,8 +18,11 @@ autoexamples = true
 all-features = true
 
 [features]
-default = ["with_client_implementation", "with_panic", "with_failure", "with_log", "with_env_logger", "with_device_info", "with_rust_info"]
-with_client_implementation = ["reqwest", "im", "url", "with_backtrace"]
+default = ["with_client_implementation", "with_default_transport", "with_panic", "with_failure", "with_log", "with_env_logger", "with_device_info", "with_rust_info"]
+with_reqwest_transport = ["reqwest", "httpdate", "with_client_implementation"]
+with_curl_transport = ["curl", "httpdate", "serde_json", "with_client_implementation"]
+with_default_transport = ["with_reqwest_transport"]
+with_client_implementation = ["im", "url", "with_backtrace"]
 with_backtrace = ["backtrace", "regex"]
 with_panic = ["with_backtrace"]
 with_failure = ["failure", "with_backtrace"]
@@ -48,7 +51,9 @@ libc = { version = "0.2.48", optional = true }
 hostname = { version = "0.1.5", optional = true }
 findshlibs = { version = "0.4.1", optional = true }
 rand = "0.6.5"
-httpdate = "0.3.2"
+httpdate = { version = "0.3.2", optional = true }
+curl = { version = "0.4.19", optional = true }
+serde_json = { version = "1.0.38", optional = true }
 
 [target."cfg(not(windows))".dependencies]
 uname = { version = "0.1.1", optional = true }

Makefile

@@ -53,6 +53,13 @@ check-all-impls:
 	@RUSTFLAGS=-Dwarnings cargo check --no-default-features --features 'with_failure,with_log,with_panic,with_error_chain'
 .PHONY: check-all-impls
 
+check-curl-transport:
+	@echo 'CURL TRANSPORT'
+	@RUSTFLAGS=-Dwarnings cargo check --features with_curl_transport
+	@echo 'CURL TRANSPORT ONLY'
+	@RUSTFLAGS=-Dwarnings cargo check --no-default-features --features 'with_curl_transport,with_client_implementation,with_panic'
+.PHONY: check-curl-transport
+
 check-actix:
 	@echo 'ACTIX INTEGRATION'
 	@RUSTFLAGS=-Dwarnings cargo check --manifest-path integrations/sentry-actix/Cargo.toml
@@ -61,7 +68,7 @@ check-actix:
 check: check-no-default-features check-default-features
 .PHONY: check-all-features
 
-checkall: check-all-features check-no-default-features check-default-features check-failure check-log check-panic check-error-chain check-all-impls check-actix
+checkall: check-all-features check-no-default-features check-default-features check-failure check-log check-panic check-error-chain check-all-impls check-curl-transport check-actix
 .PHONY: checkall
 
 cargotest:

src/lib.rs

@@ -89,6 +89,7 @@
 //! default flags:
 //!
 //! * `with_client_implementation`: turns on the real client implementation.
+//! * `with_default_transport`: compiles in the default HTTP transport.
 //! * `with_backtrace`: enables backtrace support (automatically turned on in a few cases)
 //! * `with_panic`: enables the panic integration
 //! * `with_failure`: enables the `failure` integration
@@ -104,6 +105,9 @@
 //!
 //! * `with_error_chain`: enables the error-chain integration
 //! * `with_test_support`: enables the test support module
+//! * `with_reqwest_transport`: enables the reqwest transport explicitly.  This
+//!   is currently the default transport.
+//! * `with_curl_transport`: enables the curl transport.
 #![warn(missing_docs)]
 
 #[macro_use]
@@ -142,7 +146,7 @@ pub mod internals {
     #[cfg(feature = "with_client_implementation")]
     pub use crate::{
         client::{ClientInitGuard, IntoDsn},
-        transport::{DefaultTransportFactory, HttpTransport, Transport, TransportFactory},
+        transport::{Transport, TransportFactory},
     };
 
     pub use sentry_types::{
@@ -151,6 +155,22 @@ pub mod internals {
     };
 }
 
+/// The provided transports.
+///
+/// This module exposes all transports that are compiled into the sentry
+/// library.  The `with_reqwest_transport` and `with_curl_transport` flags
+/// turn on these transports.
+pub mod transports {
+    #[cfg(any(feature = "with_reqwest_transport", feature = "with_curl_transport"))]
+    pub use crate::transport::{DefaultTransportFactory, HttpTransport};
+
+    #[cfg(feature = "with_reqwest_transport")]
+    pub use crate::transport::ReqwestHttpTransport;
+
+    #[cfg(feature = "with_curl_transport")]
+    pub use crate::transport::CurlHttpTransport;
+}
+
 // public api or exports from this crate
 pub use crate::api::*;
 pub use crate::hub::Hub;