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Latest golang download #11

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Latest golang download #11

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d3acdbe
+ adjust download location for latest version of Go (1.3)
indraniel Jul 1, 2014
b8785e2
+ find the golang download url generically
indraniel Jul 9, 2014
c78ef58
+ alternative way to get golang download url generically
indraniel Jul 9, 2014
3f6a2ba
+ include new download url
indraniel Jan 25, 2016
28706c3
+ account for custom "extra" parameters
indraniel Jan 25, 2016
c11ae6c
+ mention the download url
indraniel Jan 25, 2016
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39 changes: 35 additions & 4 deletions libexec/goenv-install
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,35 @@
# Bomb out if we hit an error, ever
set -e

# helper functions
function download_url_exist() {
local url="$1"
curl -L --output /dev/null --silent --head --fail "$url"
}

function download_url() {
local version="$1"
local platform="$2"
local arch="$3"
local extra="$4"

# newer versions are at http://storage.googleapis.com/golang
# older versions are at http://go.googlecode.com/files

local base_url_new="https://storage.googleapis.com/golang"
local base_url_old="http://go.googlecode.com/files"

download="${base_url_new}/go${version}.${platform}-${arch}${extra}.tar.gz"
if download_url_exist $download ;
then
echo $download
return
fi

download="${base_url_old}/go${version}.${platform}-${arch}${extra}.tar.gz"
echo $download
}

# Verbose output in debug mode
[ -n "$GOENV_DEBUG" ] && {
set -x
Expand All @@ -33,8 +62,9 @@ else
fi

if [ "$platform" = "darwin" ]; then
# Since go version 1.2, osx packages were subdivided into 10.6 and 10.8
if [ "$version" = "1.2" -o "$version" \> "1.2" ]; then
extra=""
# Between go versions 1.2 through 1.4.3, osx packages were subdivided into 10.6 and 10.8
if [ "$version" = "1.2" -o \( "$version" \> "1.2" -a "$version" \< "1.4.3" \) ]; then
if [ "$(uname -r)" \> "12" ]; then
extra="-osx10.8"
else
Expand All @@ -44,15 +74,16 @@ if [ "$platform" = "darwin" ]; then
fi

# URL to download from
download="https://go.googlecode.com/files/go${version}.${platform}-${arch}${extra}.tar.gz"
download=$(download_url $version $platform $arch $extra)
echo "Downloading: $download"

# Can't get too clever here
set +e

# Download binary tarball and install
# Linux downloads are formatted differently from OS X
(
curl -s -f "$download" > "/tmp/go${version}.${platform}-${arch}.tar.gz" && \
curl -L -s -f "$download" > "/tmp/go${version}.${platform}-${arch}.tar.gz" && \
tar zxvf "/tmp/go${version}.${platform}-${arch}.tar.gz" --strip-components 1 && \
rm "/tmp/go${version}.${platform}-${arch}.tar.gz"
) || \
Expand Down