Don't enable the postgres feature by default

I've stopped documenting that it's enabled by default for a while, but I
left it there for backwards compat reasons with the intention of
eventually removing it. I think it's that time.

Author: sgrif

CHANGELOG.md

@@ -4,6 +4,13 @@ All user visible changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/), as described
 for Rust libraries in [RFC #1105](https://github.com/rust-lang/rfcs/blob/master/text/1105-api-evolution.md)
 
+## Unreleased
+
+### Changed
+
+* The `postgres` feature is no longer enabled by default by `diesel` or
+  `diesel_codegen_syntex`. Add `features = ["postgres"]` to your `Cargo.toml`.
+
 ## [0.9.1] - 2016-12-09
 
 ### Fixed

diesel/Cargo.toml

@@ -24,7 +24,7 @@ dotenv = "0.8.0"
 tempdir = "^0.3.4"
 
 [features]
-default = ["postgres"]
+default = []
 unstable = []
 large-tables = []
 huge-tables = ["large-tables"]

diesel_codegen_syntex/Cargo.toml

@@ -21,7 +21,7 @@ diesel = { version = "0.9.0", default-features = false }
 diesel_codegen_shared = { version = "0.9.0", default-features = false }
 
 [features]
-default = ["postgres", "dotenv"]
+default = ["dotenv"]
 dotenv = ["diesel_codegen_shared/dotenv"]
 postgres = ["diesel/postgres", "diesel_codegen_shared/postgres"]
 sqlite = ["diesel/sqlite", "diesel_codegen_shared/sqlite"]

examples/getting_started_step_1/Cargo.toml

@@ -4,6 +4,6 @@ version = "0.1.0"
 authors = ["Sean Griffin <sean@seantheprogrammer.com>"]
 
 [dependencies]
-diesel = "0.9.0"
+diesel = { version = "0.9.0", features = ["postgres"] }
 diesel_codegen = { version = "0.9.0", features = ["postgres"] }
 dotenv = "0.8.0"

examples/getting_started_step_2/Cargo.toml

@@ -4,6 +4,6 @@ version = "0.1.0"
 authors = ["Sean Griffin <sean@seantheprogrammer.com>"]
 
 [dependencies]
-diesel = "0.9.0"
+diesel = { version = "0.9.0", features = ["postgres"] }
 diesel_codegen = { version = "0.9.0", features = ["postgres"] }
 dotenv = "0.8.0"

examples/getting_started_step_3/Cargo.toml

@@ -4,6 +4,6 @@ version = "0.1.0"
 authors = ["Sean Griffin <sean@seantheprogrammer.com>"]
 
 [dependencies]
-diesel = "0.9.0"
+diesel = { version = "0.9.0", features = ["postgres"] }
 diesel_codegen = { version = "0.9.0", features = ["postgres"] }
 dotenv = "0.8.0"

examples/getting_started_step_4/Cargo.toml

@@ -8,7 +8,7 @@ build = "build.rs"
 diesel_codegen_syntex = { version = "0.9.0", features = ["postgres"], optional = true }
 
 [dependencies]
-diesel = "0.9.0"
+diesel = { version = "0.9.0", features = ["postgres"] }
 diesel_codegen = { version = "0.9.0", features = ["postgres"], optional = true }
 dotenv = "0.8.0"