Enable everything but dist-server by default

.travis.yml

@@ -15,11 +15,11 @@ matrix:
 
     # deployments
     - env: DEPLOY=1 TARGET=x86_64-apple-darwin OPENSSL_STATIC=yes
-      script: cargo build --release --target $TARGET --features=all
+      script: cargo build --release --target $TARGET
       os: osx
     - env: DEPLOY=1 TARGET=x86_64-unknown-linux-musl OPENSSL_DIR=$HOME/openssl-musl
       before_script: ./scripts/travis-musl-openssl.sh
-      script: cargo build --release --target $TARGET --features=all
+      script: cargo build --release --target $TARGET
       addons:
         apt:
           packages:
@@ -34,11 +34,11 @@ before_script:
   - if [[ "${DIST_SCCACHE}" = "1" ]]; then export EXTRA_FEATURES="$EXTRA_FEATURES dist-client dist-server"; fi
 
 script:
-  - cargo build --verbose --features="all ${EXTRA_FEATURES}" || exit 1
+  - cargo build --verbose --features="${EXTRA_FEATURES}" || exit 1
   - RUST_BACKTRACE=1 cargo test --all --verbose --no-default-features --features="${EXTRA_FEATURES}" 
-  - RUST_BACKTRACE=1 cargo test --all --verbose --features="all ${EXTRA_FEATURES}"
+  - RUST_BACKTRACE=1 cargo test --all --verbose --features="${EXTRA_FEATURES}"
   # Requires PR #321
-  #- if [[ "${DIST_SCCACHE}" = "1" ]]; then RUST_BACKTRACE=1 cargo test --all --verbose --features="all dist-tests ${EXTRA_FEATURES}" test_dist_ -- --test-threads 1; fi
+  #- if [[ "${DIST_SCCACHE}" = "1" ]]; then RUST_BACKTRACE=1 cargo test --all --verbose --features="dist-tests ${EXTRA_FEATURES}" test_dist_ -- --test-threads 1; fi
 
 before_deploy:
   - "./scripts/prep_deploy.sh"

Cargo.toml

@@ -124,7 +124,7 @@ features = [
 ]
 
 [features]
-default = ["dist-client", "s3"]
+default = ["all"]
 all = ["dist-client", "redis", "s3", "memcached", "gcs", "azure"]
 azure = ["chrono", "hyper", "hyperx", "url", "hmac", "md-5", "sha2"]
 s3 = ["chrono", "hyper", "hyperx", "reqwest", "simple-s3", "hmac", "sha-1"]

README.md

@@ -120,10 +120,10 @@ Build
 If you are building sccache for non-development purposes make sure you use `cargo build --release` to get optimized binaries:
 
 ```bash
-cargo build --release [--features=all|s3|redis|gcs|memcached|azure]
+cargo build --release [--no-default-features --features=s3|redis|gcs|memcached|azure]
 ```
 
-By default, `sccache` supports a local disk cache and S3. Use the `--features` flag to build `sccache` with support for other storage options. Refer the [Cargo Documentation](http://doc.crates.io/manifest.html#the-features-section) for details on how to select features with Cargo.
+By default, `sccache` builds with support for all storage backends, but individual backends may be disabled by resetting the list of features and enabling all the other backends. Refer the [Cargo Documentation](http://doc.crates.io/manifest.html#the-features-section) for details on how to select features with Cargo.
 
 ### Building portable binaries