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#!/usr/bin/env bash
# Tests lib/filesystem.nix
# Run:
# [nixpkgs]$ lib/tests/filesystem.sh
# or:
# [nixpkgs]$ nix-build lib/tests/release.nix
set -euo pipefail
shopt -s inherit_errexit
# Use
# || die
die() {
echo >&2 "test case failed: " "$@"
exit 1
}
if test -n "${TEST_LIB:-}"; then
NIX_PATH=nixpkgs="$(dirname "$TEST_LIB")"
else
NIX_PATH=nixpkgs="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.."; pwd)"
fi
export NIX_PATH
work="$(mktemp -d)"
clean_up() {
rm -rf "$work"
}
trap clean_up EXIT
cd "$work"
mkdir directory
touch regular
ln -s target symlink
mkfifo fifo
checkPathType() {
local path=$1
local expectedPathType=$2
local actualPathType=$(nix-instantiate --eval --strict --json 2>&1 \
-E '{ path }: let lib = import <nixpkgs/lib>; in lib.filesystem.pathType path' \
--argstr path "$path")
if [[ "$actualPathType" != "$expectedPathType" ]]; then
die "lib.filesystem.pathType \"$path\" == $actualPathType, but $expectedPathType was expected"
fi
}
checkPathType "/" '"directory"'
checkPathType "$PWD/directory" '"directory"'
checkPathType "$PWD/regular" '"regular"'
checkPathType "$PWD/symlink" '"symlink"'
checkPathType "$PWD/fifo" '"unknown"'
checkPathIsDirectory() {
local path=$1
local expectedIsDirectory=$2
local actualIsDirectory=$(nix-instantiate --eval --strict --json 2>&1 \
-E '{ path }: let lib = import <nixpkgs/lib>; in lib.filesystem.pathIsDirectory path' \
--argstr path "$path")
if [[ "$actualIsDirectory" != "$expectedIsDirectory" ]]; then
die "lib.filesystem.pathIsDirectory \"$path\" == $actualIsDirectory, but $expectedIsDirectory was expected"
fi
}
checkPathIsDirectory "/" "true"
checkPathIsDirectory "$PWD/directory" "true"
checkPathIsDirectory "$PWD/regular" "false"
checkPathIsDirectory "$PWD/symlink" "false"
checkPathIsDirectory "$PWD/fifo" "false"
checkPathIsDirectory "$PWD/non-existent" "false"
checkPathIsRegularFile() {
local path=$1
local expectedIsRegularFile=$2
local actualIsRegularFile=$(nix-instantiate --eval --strict --json 2>&1 \
-E '{ path }: let lib = import <nixpkgs/lib>; in lib.filesystem.pathIsRegularFile path' \
--argstr path "$path")
if [[ "$actualIsRegularFile" != "$expectedIsRegularFile" ]]; then
die "lib.filesystem.pathIsRegularFile \"$path\" == $actualIsRegularFile, but $expectedIsRegularFile was expected"
fi
}
checkPathIsRegularFile "/" "false"
checkPathIsRegularFile "$PWD/directory" "false"
checkPathIsRegularFile "$PWD/regular" "true"
checkPathIsRegularFile "$PWD/symlink" "false"
checkPathIsRegularFile "$PWD/fifo" "false"
checkPathIsRegularFile "$PWD/non-existent" "false"
echo >&2 tests ok
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