Merge pull request #21 from jethrogb/ci

Setup Travis CI

.travis.yml

@@ -0,0 +1,18 @@
+branches:
+  only:
+    # This is where pull requests from "bors r+" are built.
+    - staging
+    # This is where pull requests from "bors try" are built.
+    - trying
+    # Not really necessary, just to get a green badge on “master”
+    - master
+language: rust
+dist: xenial
+rust:
+    - nightly-2015-05-01 # see ct.sh for more versions
+env:
+    - RUST_BACKTRACE=1
+before_script:
+  - ./ct.sh install
+script:
+  - ./ct.sh

README.md

@@ -1,5 +1,7 @@
 # core_io
 
+[![Build Status](https://travis-ci.com/jethrogb/rust-core_io.svg?branch=master)](https://travis-ci.com/jethrogb/rust-core_io)
+
 `std::io` with all the parts that don't work in core removed.
 
 ## Adding new nightly versions

ct.sh

@@ -0,0 +1,37 @@
+#!/bin/bash -e
+RUST_VERSIONS=$(awk '{print $1}' <<EOF
+    nightly-2019-04-27 # core_io release
+    nightly-2018-08-14 # edge case: old features disallowed
+    nightly-2018-08-06 # edge case: old features allowed
+    nightly-2018-03-07 # core_io release
+    nightly-2018-01-02 # edge case: memchr in core
+    nightly-2018-01-01 # edge case: no memchr in core
+    nightly-2017-06-16 # edge case: no collections crate
+    nightly-2017-06-15 # edge case: collections crate
+    nightly-2017-04-09 # core_io release
+    nightly-2017-03-04 # edge case: std_unicode crate
+    nightly-2017-03-03 # edge case: rustc_unicode crate
+    nightly-2017-01-18 # edge case: rustc_unicode crate
+    nightly-2016-12-05 # edge case: no unicode crate
+    nightly-2016-10-28 # core_io release
+    nightly-2016-07-07 # core_io release
+    nightly-2015-05-01 # some old version
+EOF
+)
+
+if [ "$1" = "install" ]; then
+    for v in $RUST_VERSIONS; do
+        rustup install $v &
+    done
+    git clone https://github.com/rust-lang/rust/
+    wait
+    exit 0
+fi
+
+cut -d\" -f2 mapping.rs | GIT_DIR=$(readlink -f rust/.git) ./build-src.sh clean
+for v in $RUST_VERSIONS; do
+    echo '==> Version '$v
+    cargo +$v build
+    cargo +$v build --features alloc
+    cargo +$v build --features collections
+done