#!/bin/bash
# title: Go
# homepage: https://golang.org
# tagline: The Go Programming Language tools
# description: |
# Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
# examples: |
# ```bash
# mkdir -p hello/
# pushd hello/
# ```
#
#
# ```bash
# cat << EOF >> main.go
# package main
#
# import (
# "fmt"
# )
#
# func main () {
# fmt.Println("Hello, World!")
# }
# EOF
# ```
#
#
# ```bash
# go fmt ./...
# go build .
# ./hello
# > Hello, World!
# ```
set -e
set -u
###################
# Install go #
###################
new_go_home="${HOME}/.local/opt/go-v${WEBI_VERSION}"
new_go="${HOME}/.local/opt/go-v${WEBI_VERSION}/bin/go"
# Test for existing version
set +e
cur_go="$(command -v go)"
set -e
if [ -n "$cur_go" ]; then
cur_ver=$(go version | cut -d' ' -f3 | sed 's:go::')
if [ "$cur_ver" == "$(echo $WEBI_VERSION | sed 's:\.0::g')" ]; then
echo "go v$WEBI_VERSION already installed at $cur_go"
exit 0
elif [ "$cur_go" != "$new_go" ]; then
echo "WARN: possible conflict with go v$WEBI_VERSION at $cur_go"
fi
fi
# Note: this file is `source`d by the true installer and hence will have the webi functions
# because we created releases.js we can use webi_download()
# downloads go to ~/Downloads
webi_download
# because this is tar or zip, we can webi_extract()
# extracts to the WEBI_TMP directory, raw (no --strip-prefix)
webi_extract
pushd "$WEBI_TMP" 2>&1 >/dev/null
echo Installing go v${WEBI_VERSION} as "$new_go"
# simpler for single-binary commands
#mv ./example*/bin/example "$HOME/.local/bin"
# best for packages and toolchains
rm -rf "$new_go_home"
if [ -n "$(command -v rsync 2>/dev/null | grep rsync)" ]; then
rsync -Krl ./go*/ "$new_go_home/" 2>/dev/null
else
cp -Hr ./go*/* "$new_go_home/" 2>/dev/null
cp -Hr ./go*/.* "$new_go_home/" 2>/dev/null
fi
rm -rf ./go*
# Install x go
$new_go_home/bin/go get golang.org/x/tools/cmd/goimports > /dev/null 2>/dev/null
$new_go_home/bin/go get golang.org/x/tools/cmd/gorename > /dev/null 2>/dev/null
$new_go_home/bin/go get golang.org/x/tools/cmd/gotype > /dev/null 2>/dev/null
$new_go_home/bin/go get golang.org/x/tools/cmd/stringer > /dev/null 2>/dev/null
popd 2>&1 >/dev/null
###################
# Update PATH #
###################
# TODO get better output from pathman / output the path to add as return to webi bootstrap
webi_path_add "$new_go_home/bin"
webi_path_add "$HOME/go/bin"
echo "Installed 'go' (and go tools)"
echo ""