use local deno install sh (#8126)

.travis.yml

@@ -122,7 +122,7 @@ before_install:
     fi;
   - pushd .; cd website; yarn install; popd
   # install Deno
-  - curl -fsSL https://deno.land/x/install/install.sh | sh -s v1.1.2
+  - sh -s v1.1.2 < ./CI/deno_install.sh
   - export PATH="$HOME/.deno/bin:$PATH"
 
 install:

CI/deno_install.sh

@@ -0,0 +1,52 @@
+#!/bin/sh
+# Copyright 2019 the Deno authors. All rights reserved. MIT license.
+# TODO(everyone): Keep this script simple and easily auditable.
+
+set -e
+
+if ! command -v unzip >/dev/null; then
+	echo "Error: unzip is required to install Deno (see: https://github.com/denoland/deno_install#unzip-is-required)." 1>&2
+	exit 1
+fi
+
+if [ "$OS" = "Windows_NT" ]; then
+	target="x86_64-pc-windows-msvc"
+else
+	case $(uname -s) in
+	Darwin) target="x86_64-apple-darwin" ;;
+	*) target="x86_64-unknown-linux-gnu" ;;
+	esac
+fi
+
+if [ $# -eq 0 ]; then
+	deno_uri="https://github.com/denoland/deno/releases/latest/download/deno-${target}.zip"
+else
+	deno_uri="https://github.com/denoland/deno/releases/download/${1}/deno-${target}.zip"
+fi
+
+deno_install="${DENO_INSTALL:-$HOME/.deno}"
+bin_dir="$deno_install/bin"
+exe="$bin_dir/deno"
+
+if [ ! -d "$bin_dir" ]; then
+	mkdir -p "$bin_dir"
+fi
+
+curl --fail --location --progress-bar --output "$exe.zip" "$deno_uri"
+unzip -d "$bin_dir" -o "$exe.zip"
+chmod +x "$exe"
+rm "$exe.zip"
+
+echo "Deno was installed successfully to $exe"
+if command -v deno >/dev/null; then
+	echo "Run 'deno --help' to get started"
+else
+	case $SHELL in
+	/bin/zsh) shell_profile=".zshrc" ;;
+	*) shell_profile=".bash_profile" ;;
+	esac
+	echo "Manually add the directory to your \$HOME/$shell_profile (or similar)"
+	echo "  export DENO_INSTALL=\"$deno_install\""
+	echo "  export PATH=\"\$DENO_INSTALL/bin:\$PATH\""
+	echo "Run '$exe --help' to get started"
+fi