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install.sh script fixes #263

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Merged
merged 8 commits into from
Dec 15, 2018
Merged

install.sh script fixes #263

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ff682b2
install.sh: allow user to customize install location
1ace Dec 13, 2018
ac34b50
install.sh: verify that the install location can be used
1ace Dec 13, 2018
ba666c7
install.sh: don't invoke sudo if it isn't needed
1ace Dec 13, 2018
19e4d77
install.sh: make sure `lab` is executable
1ace Dec 13, 2018
8edc291
install.sh: error out if an unset variable is used
1ace Dec 13, 2018
560aa3c
install.sh: error out if part of a pipe chain fails
1ace Dec 13, 2018
7504278
install.sh: allow exact location of binary to be specified
1ace Dec 13, 2018
ec5ffe7
install.sh: replace `cp+chmod` with `install`
1ace Dec 13, 2018
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29 changes: 24 additions & 5 deletions install.sh
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Original file line number Diff line number Diff line change
@@ -1,16 +1,35 @@
#!/usr/bin/env bash

set -e
set -eu -o pipefail

if [[ ! -z $DEBUG ]]; then
if [[ ! -z ${DEBUG-} ]]; then
set -x
fi

if [[ $EUID != 0 ]]; then
: ${PREFIX:=/usr/local}
BINDIR="$PREFIX/bin"

if [[ $# -gt 0 ]]; then
BINDIR=$1
fi

_can_install() {
if [[ ! -d "$BINDIR" ]]; then
mkdir -p "$BINDIR" 2> /dev/null
fi
[[ -d "$BINDIR" && -w "$BINDIR" ]]
}

if ! _can_install && [[ $EUID != 0 ]]; then
sudo "$0" "$@"
exit "$?"
fi

if ! _can_install; then
echo "Can't install to $BINDIR"
exit 1
fi

case "$(uname -m)" in
x86_64)
machine="amd64"
Expand Down Expand Up @@ -39,5 +58,5 @@ esac
latest="$(curl -sL 'https://api.github.com/repos/zaquestion/lab/releases/latest' | grep 'tag_name' | grep --only 'v[0-9\.]\+' | cut -c 2-)"

curl -sL "https://github.com/zaquestion/lab/releases/download/v${latest}/lab_${latest}_${os}_${machine}.tar.gz" | tar -C /tmp/ -xzf -
cp /tmp/lab /usr/local/bin/lab
echo "Successfully installed lab into /usr/local/bin/"
install -m755 /tmp/lab $BINDIR/lab
echo "Successfully installed lab into $BINDIR/"