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5b8c1deb18
Add a new `file` fetcher type, which will fetch a plain file over
http(s), or from the local file.
Because plain `http(s)://` or `file://` urls can already correspond to
`tarball` inputs (if the path ends-up with a know archive extension),
the URL parsing logic is a bit convuluted in that:
- {http,https,file}:// urls will be interpreted as either a tarball or a
file input, depending on the extensions of the path part (so
`https://foo.com/bar` will be a `file` input and
`https://foo.com/bar.tar.gz` as a `tarball` input)
- `file+{something}://` urls will be interpreted as `file` urls (with
the `file+` part removed)
- `tarball+{something}://` urls will be interpreted as `tarball` urls (with
the `tarball+` part removed)
Fix #3785
Co-Authored-By: Tony Olagbaiye <me@fron.io>
105 lines
3.2 KiB
Bash
105 lines
3.2 KiB
Bash
source common.sh
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clearStore
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cd "$TEST_ROOT"
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test_fetch_file () {
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echo foo > test_input
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input_hash="$(nix hash path test_input)"
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nix eval --impure --file - <<EOF
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let
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tree = builtins.fetchTree { type = "file"; url = "file://$PWD/test_input"; };
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in
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assert (tree.narHash == "$input_hash");
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tree
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EOF
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}
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# Make sure that `http(s)` and `file` flake inputs are properly extracted when
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# they should be, and treated as opaque files when they should be
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test_file_flake_input () {
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rm -fr "$TEST_ROOT/testFlake";
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mkdir "$TEST_ROOT/testFlake";
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pushd testFlake
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mkdir inputs
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echo foo > inputs/test_input_file
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tar cfa test_input.tar.gz inputs
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cp test_input.tar.gz test_input_no_ext
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input_tarball_hash="$(nix hash path test_input.tar.gz)"
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input_directory_hash="$(nix hash path inputs)"
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cat <<EOF > flake.nix
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{
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inputs.no_ext_default_no_unpack = {
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url = "file://$PWD/test_input_no_ext";
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flake = false;
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};
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inputs.no_ext_explicit_unpack = {
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url = "tarball+file://$PWD/test_input_no_ext";
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flake = false;
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};
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inputs.tarball_default_unpack = {
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url = "file://$PWD/test_input.tar.gz";
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flake = false;
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};
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inputs.tarball_explicit_no_unpack = {
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url = "file+file://$PWD/test_input.tar.gz";
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flake = false;
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};
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outputs = { ... }: {};
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}
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EOF
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nix flake update
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nix eval --file - <<EOF
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with (builtins.fromJSON (builtins.readFile ./flake.lock));
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# Url inputs whose extension doesn’t match a know archive format should
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# not be unpacked by default
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assert (nodes.no_ext_default_no_unpack.locked.type == "file");
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assert (nodes.no_ext_default_no_unpack.locked.unpack or false == false);
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assert (nodes.no_ext_default_no_unpack.locked.narHash == "$input_tarball_hash");
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# For backwards compatibility, flake inputs that correspond to the
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# old 'tarball' fetcher should still have their type set to 'tarball'
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assert (nodes.tarball_default_unpack.locked.type == "tarball");
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# Unless explicitely specified, the 'unpack' parameter shouldn’t appear here
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# because that would break older Nix versions
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assert (!nodes.tarball_default_unpack.locked ? unpack);
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assert (nodes.tarball_default_unpack.locked.narHash == "$input_directory_hash");
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# Explicitely passing the unpack parameter should enforce the desired behavior
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assert (nodes.no_ext_explicit_unpack.locked.narHash == nodes.tarball_default_unpack.locked.narHash);
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assert (nodes.tarball_explicit_no_unpack.locked.narHash == nodes.no_ext_default_no_unpack.locked.narHash);
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true
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EOF
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popd
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[[ -z "${NIX_DAEMON_PACKAGE}" ]] && return 0
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# Ensure that a lockfile generated by the current Nix for tarball inputs
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# can still be read by an older Nix
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cat <<EOF > flake.nix
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{
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inputs.tarball = {
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url = "file://$PWD/test_input.tar.gz";
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flake = false;
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};
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outputs = { self, tarball }: {
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foo = builtins.readFile "${tarball}/test_input_file";
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};
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}
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nix flake update
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clearStore
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"$NIX_DAEMON_PACKAGE/bin/nix" eval .#foo
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EOF
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}
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test_fetch_file
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test_file_flake_input
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