nix/tests/init.sh
Eelco Dolstra 462421d345 Backport libfetchers from the flakes branch
This provides a pluggable mechanism for defining new fetchers. It adds
a builtin function 'fetchTree' that generalizes existing fetchers like
'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a
set of attributes, e.g.

  fetchTree {
    type = "git";
    url = "https://example.org/repo.git";
    ref = "some-branch";
    rev = "abcdef...";
  }

The existing fetchers are just wrappers around this. Note that the
input attributes to fetchTree are the same as flake input
specifications and flake lock file entries.

All fetchers share a common cache stored in
~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching
mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}).

This also adds support for Git worktrees (c169ea5904).
2020-04-07 09:03:14 +02:00

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source common.sh
test -n "$TEST_ROOT"
if test -d "$TEST_ROOT"; then
chmod -R u+w "$TEST_ROOT"
rm -rf "$TEST_ROOT"
fi
mkdir "$TEST_ROOT"
mkdir "$NIX_STORE_DIR"
mkdir "$NIX_LOCALSTATE_DIR"
mkdir -p "$NIX_LOG_DIR"/drvs
mkdir "$NIX_STATE_DIR"
mkdir "$NIX_CONF_DIR"
cat > "$NIX_CONF_DIR"/nix.conf <<EOF
build-users-group =
keep-derivations = false
sandbox = false
experimental-features = nix-command flakes
flake-registry = $TEST_ROOT/registry.json
include nix.conf.extra
EOF
cat > "$NIX_CONF_DIR"/nix.conf.extra <<EOF
fsync-metadata = false
!include nix.conf.extra.not-there
EOF
# Initialise the database.
nix-store --init
# Did anything happen?
test -e "$NIX_STATE_DIR"/db/db.sqlite
echo 'Hello World' > ./dummy