nixpkgs/pkgs/tools/nix/info/info.sh
Alexander Schmolck eb811a6ee0 nix-info: fix nix-info --help to exit 0
Previously, --help and -h were treated like an invalid argument.
2023-04-30 13:04:09 +01:00

175 lines
3.4 KiB
Bash
Executable File

#!/bin/bash
PATH="@path@:$PATH"
IS_DARWIN="@is_darwin@"
set -eu
set -o pipefail
DEBUG=0
MARKDOWN=0
HOST_OS=0
SANDBOX=0
while true; do
case "${1:-}" in
"")
break
;;
-d | --debug)
set -x
DEBUG=1
shift
;;
-m | --markdown)
MARKDOWN=1
HOST_OS=1
SANDBOX=1
shift
;;
--host-os)
HOST_OS=1
shift
;;
--sandbox)
SANDBOX=1
shift
;;
* )
cat <<EOF
nix-info - get high level info to help with debugging
Options:
-m, --markdown formatting for a GitHub issue
implies: --host-os, --sandbox
--sandbox include sandbox configuration
--host-os include host OS details
-h, --help show this message
-d, --debug debug mode
EOF
case "${1:-}" in
-h|--help)
exit 0
;;
*)
exit 1
;;
esac
esac
done
debuglog() {
if [ $DEBUG -eq 1 ]; then
cat >&2
else
cat > /dev/null
fi
}
nixev() {
nix-instantiate --eval --strict -E "$1"
}
desc_system() {
nixev 'builtins.currentSystem'
}
desc_host_os() {
printf "%s" "$(uname -sr)"
if [ "$IS_DARWIN" = "yes" ]; then
printf ", macOS %s" "$(sw_vers -productVersion)"
fi
if [ -f /etc/os-release ]; then
(
# shellcheck disable=SC1091
. /etc/os-release
printf ", %s, %s, %s" "${NAME:-$(uname -v)}" "${VERSION:-noversion}" "${BUILD_ID:-nobuild}"
)
fi
}
desc_multi_user() {
if nix-build --no-out-link @multiusertest@ 2>&1 | debuglog; then
printf "yes"
else
printf "no"
fi
}
desc_nixpkgs_path() {
nixev '<nixpkgs>' 2>/dev/null || echo "not found"
}
channel_facts() {
find /nix/var/nix/profiles/per-user \
-mindepth 2 \
-maxdepth 2 \
-name channels \
-print0 \
|\
while IFS= read -r -d '' userchannelset; do
manifest="$userchannelset/manifest.nix"
if [ -e "$manifest" ]; then
userchannels=$(nixev \
"builtins.concatStringsSep \", \"
(map (ch: ch.name)
(import \"$manifest\"))")
fact "channels($(echo "$manifest" | cut -d/ -f7))" \
"$userchannels"
fi
done
}
desc_sandbox() {
if nix-build --no-out-link @sandboxtest@ 2>&1 | debuglog; then
printf "no"
elif nix-build --no-out-link @relaxedsandboxtest@ 2>&1 | debuglog; then
printf "relaxed"
else
printf "yes"
fi
}
fact() {
name="${1:-0}"
value="${2:-0}"
last="${3:-1}"
if [ $MARKDOWN -eq 0 ]; then
printf "%s: %s" "$name" "$value"
if [ "$last" -eq 1 ]; then
printf ", "
fi
else
printf " - %s: \`%s\`\\n" "$name" "$value"
fi
if [ "$last" -eq 0 ]; then
echo ""
fi
}
last_fact() {
fact "$1" "$2" 0
}
fact "system" "$(desc_system)"
if [ $HOST_OS -eq 1 ]; then
fact "host os" "$(desc_host_os)"
fi
fact "multi-user?" "$(desc_multi_user)"
if [ $SANDBOX -eq 1 ]; then
fact "sandbox" "$(desc_sandbox)"
fi
fact "version" "$(nix-env --version)"
channel_facts
last_fact "nixpkgs" "$(desc_nixpkgs_path)"