Move data_source into own crate

Cargo.toml

@@ -32,6 +32,7 @@ re_build_tools = { path = "crates/re_build_tools", version = "=0.9.0-alpha.2", d
 re_build_web_viewer = { path = "crates/re_build_web_viewer", version = "=0.9.0-alpha.2", default-features = false }
 re_components = { path = "crates/re_components", version = "=0.9.0-alpha.2", default-features = false }
 re_crash_handler = { path = "crates/re_crash_handler", version = "=0.9.0-alpha.2", default-features = false }
+re_data_source = { path = "crates/re_data_source", version = "=0.9.0-alpha.2", default-features = false }
 re_data_store = { path = "crates/re_data_store", version = "=0.9.0-alpha.2", default-features = false }
 re_data_ui = { path = "crates/re_data_ui", version = "=0.9.0-alpha.2", default-features = false }
 re_error = { path = "crates/re_error", version = "=0.9.0-alpha.2", default-features = false }

crates/re_data_source/Cargo.toml

@@ -0,0 +1,42 @@
+[package]
+name = "re_data_source"
+authors.workspace = true
+description = "Handles loading of Rerun data"
+edition.workspace = true
+homepage.workspace = true
+include.workspace = true
+license.workspace = true
+publish = true
+readme = "README.md"
+repository.workspace = true
+rust-version.workspace = true
+version.workspace = true
+
+[package.metadata.docs.rs]
+all-features = true
+
+
+[features]
+default = []
+
+sdk = ["dep:re_sdk"]
+
+
+[dependencies]
+re_log_encoding.workspace = true
+re_log_types.workspace = true
+re_log.workspace = true
+re_smart_channel.workspace = true
+re_tracing.workspace = true
+re_ws_comms.workspace = true
+
+anyhow.workspace = true
+itertools.workspace = true
+rayon.workspace = true
+
+# Optional:
+re_sdk = { workspace = true, optional = true }
+
+
+[build-dependencies]
+re_build_tools.workspace = true

crates/re_data_source/README.md

@@ -0,0 +1,18 @@
+# re_data_source
+
+Part of the [`rerun`](https://github.com/rerun-io/rerun) family of crates.
+
+[![Latest version](https://img.shields.io/crates/v/re_data_source.svg)](https://crates.io/crates/re_data_source)
+[![Documentation](https://docs.rs/re_data_source/badge.svg)](https://docs.rs/re_data_source)
+![MIT](https://img.shields.io/badge/license-MIT-blue.svg)
+![Apache](https://img.shields.io/badge/license-Apache-blue.svg)
+
+Handles different ways of loading Rerun data, e.g.:
+* Over HTTP(s)
+* Over WebSocket
+* From disk
+
+Also handles different file types:
+* .rrd
+* images
+* meshes

crates/re_data_source/build.rs

@@ -0,0 +1,4 @@
+fn main() {
+    re_build_tools::rebuild_if_crate_changed("re_data_source");
+    re_build_tools::export_env_vars();
+}