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add permissions check and sudo support to install script

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This commit is contained in:
CJ van den Berg 2025-04-14 12:04:46 +02:00
parent 9cf52dd60d
commit 9db1deb169
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
1 changed files with 105 additions and 37 deletions
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142
assets/install Executable file → Normal file
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@ -7,6 +7,19 @@ add_alias=${ALIAS:-0}
nightly=${NIGHTLY:-0}
verify=${VERIFY:-0}
local=${LOCAL:-0}
use_sudo=${USE_SUDO:-0}
usage() {
echo "Options:"
echo
echo " -a, --alias Create/update 'f' alias"
echo " -n, --nightly Latest nightly build"
echo " -d <path>, --dest <path> Set install destination (default /usr/local/bin)"
echo " -V, --verify Verify gpg signature"
echo " -l, --local Verify gpg signature with local keychain"
echo " -s, --sudo Use sudo to request write permission if needed"
exit 1
}
while true; do
case "${1}" in
@ -18,7 +31,7 @@ while true; do
nightly=1
shift 1
;;
-p | --prefix)
-d | --dest)
install_dir=/$2
shift 2
;;
@ -30,14 +43,65 @@ while true; do
local=1
shift 1
;;
-s | --sudo)
use_sudo=1
shift 1
;;
-h | --help)
usage
;;
--)
shift 1
break
;;
*) break ;;
"")
break
;;
*)
echo error: Unknown argument "${1}"
echo
usage
;;
esac
done
need_sudo=""
if [ ! -w "$install_dir" ]; then
need_sudo="$install_dir"
fi
if [ -z "$need_sudo" ] && [ -e "$install_dir/flow" ]; then
if [ ! -w "$install_dir/flow" ]; then
need_sudo="$install_dir/flow"
fi
fi
if [ -z "$need_sudo" ] && [ -e "$install_dir/f" ]; then
if [ ! -w "$install_dir/f" ]; then
need_sudo="$install_dir/f"
fi
fi
if [ "$use_sudo" -eq 0 ] && [ -t 0 ] && [ -n "$need_sudo" ]; then
printf "'%s' is not writable. Do you want to install with sudo? [y/N]: " "$need_sudo"
read -r answer_use_sudo
if [ "$answer_use_sudo" = "y" ] || [ "$answer_use_sudo" = "Y" ]; then
use_sudo=1
fi
fi
SUDOCMD=""
if [ -n "$need_sudo" ]; then
if [ "$use_sudo" -eq 1 ]; then
SUDOCMD=sudo
else
echo "$need_sudo is not writable. Install with the --sudo argument or use a user"
echo "with write permissions."
echo
usage
fi
fi
# prompt for nightly build option if interactive
if [ "$nightly" -eq 0 ] && [ -t 0 ]; then
printf "do you want to install a Nightly build? [y/N]: "
@ -47,10 +111,30 @@ if [ "$nightly" -eq 0 ] && [ -t 0 ]; then
fi
fi
if [ "$verify" -eq 0 ] && [ -t 0 ]; then
printf "do you want to download and verify the gpg signature? [y/N]: "
read -r answer_verify
if [ "$answer_verify" = "y" ] || [ "$answer_verify" = "Y" ]; then
verify=1
fi
fi
if [ ! "$(readlink "$install_dir/f")" = "$install_dir/flow" ]; then
if [ -t 0 ] && [ "$add_alias" -eq 0 ]; then
printf "do you want to create an alias 'f' for 'flow'? [y/N]: "
read -r answer_alias
if [ "$answer_alias" = "y" ] || [ "$answer_alias" = "Y" ]; then
add_alias=1
fi
fi
fi
if [ "$nightly" -eq 1 ]; then
repo="neurocyte/flow-nightly"
title="flow nightly build"
else
repo="neurocyte/flow"
title="flow"
fi
# detect os and architecture
@ -70,9 +154,10 @@ esac
# get latest version tag from github releases api
version=$(curl -s "https://api.github.com/repos/$repo/releases/latest" | grep '"tag_name":' | cut -d'"' -f4)
[ -z "$version" ] && {
echo "failed to fetch latest version"
echo "failed to fetch $title latest version"
exit 1
}
title="$title $version"
# construct download url
# note: nightly assets are named like "flow-<version>-<os>-<arch>.<ext>"
@ -83,29 +168,17 @@ if [ "$os" = "windows" ]; then
fi
url="https://github.com/$repo/releases/download/$version/$filename.$ext"
if [ "$nightly" -eq 1 ]; then
echo "downloading NIGHTLY build $version..."
else
echo "downloading flow $version..."
fi
echo "downloading $title..."
curl -fL "$url" -o "$tmp_path/$filename.$ext"
# simple file size check (adjust threshold if needed)
filesize=$(stat -c%s "$tmp_path/$filename.$ext" 2>/dev/null || stat -f%z "$tmp_path/$filename.$ext")
if [ "$filesize" -lt 100 ]; then
if [ "$filesize" -lt 16384 ]; then
echo "downloaded file appears to be invalid (size: ${filesize} bytes)"
exit 1
fi
if [ "$verify" -eq 0 ] && [ -t 0 ]; then
printf "do you want to download and verify the gpg signature? [y/N]: "
read -r answer_verify
if [ "$answer_verify" = "y" ] || [ "$answer_verify" = "Y" ]; then
verify=1
fi
fi
if [ "$verify" -eq 1 ]; then
curl -fL "$url.sig" -o "$tmp_path/$filename.$ext.sig"
curl -fL 'https://flow-control.dev/public.gpg' -o "$tmp_path/flow-control-public.gpg"
@ -119,32 +192,27 @@ if [ "$verify" -eq 1 ]; then
rm "$tmp_path/$filename.$ext.sig"
fi
echo "installing $([ "$nightly" -eq 1 ] && echo 'NIGHTLY build' || echo 'flow')..."
echo "installing $title to $install_dir/flow..."
if [ "$ext" = "tar.gz" ]; then
tar -xzf "$tmp_path/$filename.$ext" -C "$install_dir"
$SUDOCMD tar -xzf "$tmp_path/$filename.$ext" -C "$install_dir"
else
unzip -o "$tmp_path/$filename.$ext" -d "$install_dir"
$SUDOCMD unzip -o "$tmp_path/$filename.$ext" -d "$install_dir"
fi
chmod +x "$install_dir/flow"
$SUDOCMD chmod +x "$install_dir/flow"
rm "$tmp_path/$filename.$ext"
echo "$([ "$nightly" -eq 1 ] && echo 'NIGHTLY build' || echo 'flow') installed successfully!"
create_alias() {
if [ -e "$install_dir/f" ]; then
echo "warning: existing file or alias detected at $install_dir/f, overwriting..."
rm -f "$install_dir/f"
fi
ln -s "$install_dir/flow" "$install_dir/f"
echo "alias 'f' created successfully!"
}
if [ "$add_alias" -eq 1 ]; then
create_alias
elif [ -t 0 ] && [ "$add_alias" -eq 0 ]; then
printf "do you want to create an alias 'f' for 'flow'? [y/N]: "
read -r answer_alias
if [ "$answer_alias" = "y" ] || [ "$answer_alias" = "Y" ]; then
create_alias
if [ "$(readlink "$install_dir/f")" = "$install_dir/flow" ]; then
echo "alias $install_dir/f -> $install_dir/flow already exists"
else
if [ -e "$install_dir/f" ]; then
echo "WARNING: existing file or alias detected at $install_dir/f, skipping alias creation..."
else
$SUDOCMD ln -s "$install_dir/flow" "$install_dir/f"
echo "alias $install_dir/f -> $install_dir/flow created successfully"
fi
fi
fi
echo "$title installed successfully to $install_dir/flow"