mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-22 14:06:16 +02:00
Merge branch 'master' into lookup-path
This commit is contained in:
John Ericson
commit
217d863f7a
13 changed files with 428 additions and 245 deletions
15
Makefile
15
Makefile
|
|
@ -1,3 +1,7 @@
|
|||
-include Makefile.config
|
||||
clean-files += Makefile.config
|
||||
|
||||
ifeq ($(ENABLE_BUILD), yes)
|
||||
makefiles = \
|
||||
mk/precompiled-headers.mk \
|
||||
local.mk \
|
||||
|
|
@ -18,15 +22,18 @@ makefiles = \
|
|||
misc/upstart/local.mk \
|
||||
doc/manual/local.mk \
|
||||
doc/internal-api/local.mk
|
||||
endif
|
||||
|
||||
-include Makefile.config
|
||||
|
||||
ifeq ($(tests), yes)
|
||||
ifeq ($(ENABLE_BUILD)_$(ENABLE_TESTS), yes_yes)
|
||||
UNIT_TEST_ENV = _NIX_TEST_UNIT_DATA=unit-test-data
|
||||
makefiles += \
|
||||
src/libutil/tests/local.mk \
|
||||
src/libstore/tests/local.mk \
|
||||
src/libexpr/tests/local.mk \
|
||||
src/libexpr/tests/local.mk
|
||||
endif
|
||||
|
||||
ifeq ($(ENABLE_TESTS), yes)
|
||||
makefiles += \
|
||||
tests/functional/local.mk \
|
||||
tests/functional/ca/local.mk \
|
||||
tests/functional/dyn-drv/local.mk \
|
||||
|
|
|
|||
|
|
@ -46,5 +46,6 @@ sandbox_shell = @sandbox_shell@
|
|||
storedir = @storedir@
|
||||
sysconfdir = @sysconfdir@
|
||||
system = @system@
|
||||
tests = @tests@
|
||||
ENABLE_BUILD = @ENABLE_BUILD@
|
||||
ENABLE_TESTS = @ENABLE_TESTS@
|
||||
internal_api_docs = @internal_api_docs@
|
||||
|
|
|
|||
11
configure.ac
11
configure.ac
|
|
@ -152,12 +152,17 @@ if test "x$GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC" = xyes; then
|
|||
LDFLAGS="-latomic $LDFLAGS"
|
||||
fi
|
||||
|
||||
# Running the functional tests without building Nix is useful for testing
|
||||
# different pre-built versions of Nix against each other.
|
||||
AC_ARG_ENABLE(build, AS_HELP_STRING([--disable-build],[Do not build nix]),
|
||||
ENABLE_BUILD=$enableval, ENABLE_BUILD=yes)
|
||||
AC_SUBST(ENABLE_BUILD)
|
||||
# Building without tests is useful for bootstrapping with a smaller footprint
|
||||
# or running the tests in a separate derivation. Otherwise, we do compile and
|
||||
# run them.
|
||||
AC_ARG_ENABLE(tests, AS_HELP_STRING([--disable-tests],[Do not build the tests]),
|
||||
tests=$enableval, tests=yes)
|
||||
AC_SUBST(tests)
|
||||
ENABLE_TESTS=$enableval, ENABLE_TESTS=yes)
|
||||
AC_SUBST(ENABLE_TESTS)
|
||||
|
||||
# Building without API docs is the default as Nix' C++ interfaces are internal and unstable.
|
||||
AC_ARG_ENABLE(internal_api_docs, AS_HELP_STRING([--enable-internal-api-docs],[Build API docs for Nix's internal unstable C++ interfaces]),
|
||||
|
|
@ -289,7 +294,7 @@ if test "$gc" = yes; then
|
|||
fi
|
||||
|
||||
|
||||
if test "$tests" = yes; then
|
||||
if test "$ENABLE_TESTS" = yes; then
|
||||
|
||||
# Look for gtest.
|
||||
PKG_CHECK_MODULES([GTEST], [gtest_main])
|
||||
|
|
|
|||
|
|
@ -336,7 +336,6 @@ const redirects = {
|
|||
"simple-values": "#primitives",
|
||||
"lists": "#list",
|
||||
"strings": "#string",
|
||||
"lists": "#list",
|
||||
"attribute-sets": "#attribute-set",
|
||||
},
|
||||
"installation/installing-binary.html": {
|
||||
|
|
|
|||
|
|
@ -2,109 +2,124 @@
|
|||
|
||||
Most Nix commands interpret the following environment variables:
|
||||
|
||||
- <span id="env-IN_NIX_SHELL">[`IN_NIX_SHELL`](#env-IN_NIX_SHELL)</span>\
|
||||
Indicator that tells if the current environment was set up by
|
||||
`nix-shell`. It can have the values `pure` or `impure`.
|
||||
- <span id="env-IN_NIX_SHELL">[`IN_NIX_SHELL`](#env-IN_NIX_SHELL)</span>
|
||||
|
||||
- <span id="env-NIX_PATH">[`NIX_PATH`](#env-NIX_PATH)</span>\
|
||||
A colon-separated list of directories used to look up the location of Nix
|
||||
expressions using [paths](@docroot@/language/values.md#type-path)
|
||||
enclosed in angle brackets (i.e., `<path>`),
|
||||
e.g. `/home/eelco/Dev:/etc/nixos`. It can be extended using the
|
||||
[`-I` option](@docroot@/command-ref/opt-common.md#opt-I).
|
||||
Indicator that tells if the current environment was set up by
|
||||
`nix-shell`. It can have the values `pure` or `impure`.
|
||||
|
||||
If `NIX_PATH` is not set at all, Nix will fall back to the following list in [impure](@docroot@/command-ref/conf-file.md#conf-pure-eval) and [unrestricted](@docroot@/command-ref/conf-file.md#conf-restrict-eval) evaluation mode:
|
||||
- <span id="env-NIX_PATH">[`NIX_PATH`](#env-NIX_PATH)</span>
|
||||
|
||||
1. `$HOME/.nix-defexpr/channels`
|
||||
2. `nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixpkgs`
|
||||
3. `/nix/var/nix/profiles/per-user/root/channels`
|
||||
A colon-separated list of directories used to look up the location of Nix
|
||||
expressions using [paths](@docroot@/language/values.md#type-path)
|
||||
enclosed in angle brackets (i.e., `<path>`),
|
||||
e.g. `/home/eelco/Dev:/etc/nixos`. It can be extended using the
|
||||
[`-I` option](@docroot@/command-ref/opt-common.md#opt-I).
|
||||
|
||||
If `NIX_PATH` is set to an empty string, resolving search paths will always fail.
|
||||
For example, attempting to use `<nixpkgs>` will produce:
|
||||
If `NIX_PATH` is not set at all, Nix will fall back to the following list in [impure](@docroot@/command-ref/conf-file.md#conf-pure-eval) and [unrestricted](@docroot@/command-ref/conf-file.md#conf-restrict-eval) evaluation mode:
|
||||
|
||||
error: file 'nixpkgs' was not found in the Nix search path
|
||||
1. `$HOME/.nix-defexpr/channels`
|
||||
2. `nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixpkgs`
|
||||
3. `/nix/var/nix/profiles/per-user/root/channels`
|
||||
|
||||
- <span id="env-NIX_IGNORE_SYMLINK_STORE">[`NIX_IGNORE_SYMLINK_STORE`](#env-NIX_IGNORE_SYMLINK_STORE)</span>\
|
||||
Normally, the Nix store directory (typically `/nix/store`) is not
|
||||
allowed to contain any symlink components. This is to prevent
|
||||
“impure” builds. Builders sometimes “canonicalise” paths by
|
||||
resolving all symlink components. Thus, builds on different machines
|
||||
(with `/nix/store` resolving to different locations) could yield
|
||||
different results. This is generally not a problem, except when
|
||||
builds are deployed to machines where `/nix/store` resolves
|
||||
differently. If you are sure that you’re not going to do that, you
|
||||
can set `NIX_IGNORE_SYMLINK_STORE` to `1`.
|
||||
If `NIX_PATH` is set to an empty string, resolving search paths will always fail.
|
||||
For example, attempting to use `<nixpkgs>` will produce:
|
||||
|
||||
Note that if you’re symlinking the Nix store so that you can put it
|
||||
on another file system than the root file system, on Linux you’re
|
||||
better off using `bind` mount points, e.g.,
|
||||
error: file 'nixpkgs' was not found in the Nix search path
|
||||
|
||||
```console
|
||||
$ mkdir /nix
|
||||
$ mount -o bind /mnt/otherdisk/nix /nix
|
||||
```
|
||||
- <span id="env-NIX_IGNORE_SYMLINK_STORE">[`NIX_IGNORE_SYMLINK_STORE`](#env-NIX_IGNORE_SYMLINK_STORE)</span>
|
||||
|
||||
Consult the mount 8 manual page for details.
|
||||
Normally, the Nix store directory (typically `/nix/store`) is not
|
||||
allowed to contain any symlink components. This is to prevent
|
||||
“impure” builds. Builders sometimes “canonicalise” paths by
|
||||
resolving all symlink components. Thus, builds on different machines
|
||||
(with `/nix/store` resolving to different locations) could yield
|
||||
different results. This is generally not a problem, except when
|
||||
builds are deployed to machines where `/nix/store` resolves
|
||||
differently. If you are sure that you’re not going to do that, you
|
||||
can set `NIX_IGNORE_SYMLINK_STORE` to `1`.
|
||||
|
||||
- <span id="env-NIX_STORE_DIR">[`NIX_STORE_DIR`](#env-NIX_STORE_DIR)</span>\
|
||||
Overrides the location of the Nix store (default `prefix/store`).
|
||||
Note that if you’re symlinking the Nix store so that you can put it
|
||||
on another file system than the root file system, on Linux you’re
|
||||
better off using `bind` mount points, e.g.,
|
||||
|
||||
- <span id="env-NIX_DATA_DIR">[`NIX_DATA_DIR`](#env-NIX_DATA_DIR)</span>\
|
||||
Overrides the location of the Nix static data directory (default
|
||||
`prefix/share`).
|
||||
```console
|
||||
$ mkdir /nix
|
||||
$ mount -o bind /mnt/otherdisk/nix /nix
|
||||
```
|
||||
|
||||
- <span id="env-NIX_LOG_DIR">[`NIX_LOG_DIR`](#env-NIX_LOG_DIR)</span>\
|
||||
Overrides the location of the Nix log directory (default
|
||||
`prefix/var/log/nix`).
|
||||
Consult the mount 8 manual page for details.
|
||||
|
||||
- <span id="env-NIX_STATE_DIR">[`NIX_STATE_DIR`](#env-NIX_STATE_DIR)</span>\
|
||||
Overrides the location of the Nix state directory (default
|
||||
`prefix/var/nix`).
|
||||
- <span id="env-NIX_STORE_DIR">[`NIX_STORE_DIR`](#env-NIX_STORE_DIR)</span>
|
||||
|
||||
- <span id="env-NIX_CONF_DIR">[`NIX_CONF_DIR`](#env-NIX_CONF_DIR)</span>\
|
||||
Overrides the location of the system Nix configuration directory
|
||||
(default `prefix/etc/nix`).
|
||||
Overrides the location of the Nix store (default `prefix/store`).
|
||||
|
||||
- <span id="env-NIX_CONFIG">[`NIX_CONFIG`](#env-NIX_CONFIG)</span>\
|
||||
Applies settings from Nix configuration from the environment.
|
||||
The content is treated as if it was read from a Nix configuration file.
|
||||
Settings are separated by the newline character.
|
||||
- <span id="env-NIX_DATA_DIR">[`NIX_DATA_DIR`](#env-NIX_DATA_DIR)</span>
|
||||
|
||||
- <span id="env-NIX_USER_CONF_FILES">[`NIX_USER_CONF_FILES`](#env-NIX_USER_CONF_FILES)</span>\
|
||||
Overrides the location of the Nix user configuration files to load from.
|
||||
Overrides the location of the Nix static data directory (default
|
||||
`prefix/share`).
|
||||
|
||||
The default are the locations according to the [XDG Base Directory Specification].
|
||||
See the [XDG Base Directories](#xdg-base-directories) sub-section for details.
|
||||
- <span id="env-NIX_LOG_DIR">[`NIX_LOG_DIR`](#env-NIX_LOG_DIR)</span>
|
||||
|
||||
The variable is treated as a list separated by the `:` token.
|
||||
Overrides the location of the Nix log directory (default
|
||||
`prefix/var/log/nix`).
|
||||
|
||||
- <span id="env-TMPDIR">[`TMPDIR`](#env-TMPDIR)</span>\
|
||||
Use the specified directory to store temporary files. In particular,
|
||||
this includes temporary build directories; these can take up
|
||||
substantial amounts of disk space. The default is `/tmp`.
|
||||
- <span id="env-NIX_STATE_DIR">[`NIX_STATE_DIR`](#env-NIX_STATE_DIR)</span>
|
||||
|
||||
- <span id="env-NIX_REMOTE">[`NIX_REMOTE`](#env-NIX_REMOTE)</span>\
|
||||
This variable should be set to `daemon` if you want to use the Nix
|
||||
daemon to execute Nix operations. This is necessary in [multi-user
|
||||
Nix installations](@docroot@/installation/multi-user.md). If the Nix
|
||||
daemon's Unix socket is at some non-standard path, this variable
|
||||
should be set to `unix://path/to/socket`. Otherwise, it should be
|
||||
left unset.
|
||||
Overrides the location of the Nix state directory (default
|
||||
`prefix/var/nix`).
|
||||
|
||||
- <span id="env-NIX_SHOW_STATS">[`NIX_SHOW_STATS`](#env-NIX_SHOW_STATS)</span>\
|
||||
If set to `1`, Nix will print some evaluation statistics, such as
|
||||
the number of values allocated.
|
||||
- <span id="env-NIX_CONF_DIR">[`NIX_CONF_DIR`](#env-NIX_CONF_DIR)</span>
|
||||
|
||||
- <span id="env-NIX_COUNT_CALLS">[`NIX_COUNT_CALLS`](#env-NIX_COUNT_CALLS)</span>\
|
||||
If set to `1`, Nix will print how often functions were called during
|
||||
Nix expression evaluation. This is useful for profiling your Nix
|
||||
expressions.
|
||||
Overrides the location of the system Nix configuration directory
|
||||
(default `prefix/etc/nix`).
|
||||
|
||||
- <span id="env-GC_INITIAL_HEAP_SIZE">[`GC_INITIAL_HEAP_SIZE`](#env-GC_INITIAL_HEAP_SIZE)</span>\
|
||||
If Nix has been configured to use the Boehm garbage collector, this
|
||||
variable sets the initial size of the heap in bytes. It defaults to
|
||||
384 MiB. Setting it to a low value reduces memory consumption, but
|
||||
will increase runtime due to the overhead of garbage collection.
|
||||
- <span id="env-NIX_CONFIG">[`NIX_CONFIG`](#env-NIX_CONFIG)</span>
|
||||
|
||||
Applies settings from Nix configuration from the environment.
|
||||
The content is treated as if it was read from a Nix configuration file.
|
||||
Settings are separated by the newline character.
|
||||
|
||||
- <span id="env-NIX_USER_CONF_FILES">[`NIX_USER_CONF_FILES`](#env-NIX_USER_CONF_FILES)</span>
|
||||
|
||||
Overrides the location of the Nix user configuration files to load from.
|
||||
|
||||
The default are the locations according to the [XDG Base Directory Specification].
|
||||
See the [XDG Base Directories](#xdg-base-directories) sub-section for details.
|
||||
|
||||
The variable is treated as a list separated by the `:` token.
|
||||
|
||||
- <span id="env-TMPDIR">[`TMPDIR`](#env-TMPDIR)</span>
|
||||
|
||||
Use the specified directory to store temporary files. In particular,
|
||||
this includes temporary build directories; these can take up
|
||||
substantial amounts of disk space. The default is `/tmp`.
|
||||
|
||||
- <span id="env-NIX_REMOTE">[`NIX_REMOTE`](#env-NIX_REMOTE)</span>
|
||||
|
||||
This variable should be set to `daemon` if you want to use the Nix
|
||||
daemon to execute Nix operations. This is necessary in [multi-user
|
||||
Nix installations](@docroot@/installation/multi-user.md). If the Nix
|
||||
daemon's Unix socket is at some non-standard path, this variable
|
||||
should be set to `unix://path/to/socket`. Otherwise, it should be
|
||||
left unset.
|
||||
|
||||
- <span id="env-NIX_SHOW_STATS">[`NIX_SHOW_STATS`](#env-NIX_SHOW_STATS)</span>
|
||||
|
||||
If set to `1`, Nix will print some evaluation statistics, such as
|
||||
the number of values allocated.
|
||||
|
||||
- <span id="env-NIX_COUNT_CALLS">[`NIX_COUNT_CALLS`](#env-NIX_COUNT_CALLS)</span>
|
||||
|
||||
If set to `1`, Nix will print how often functions were called during
|
||||
Nix expression evaluation. This is useful for profiling your Nix
|
||||
expressions.
|
||||
|
||||
- <span id="env-GC_INITIAL_HEAP_SIZE">[`GC_INITIAL_HEAP_SIZE`](#env-GC_INITIAL_HEAP_SIZE)</span>
|
||||
|
||||
If Nix has been configured to use the Boehm garbage collector, this
|
||||
variable sets the initial size of the heap in bytes. It defaults to
|
||||
384 MiB. Setting it to a low value reduces memory consumption, but
|
||||
will increase runtime due to the overhead of garbage collection.
|
||||
|
||||
## XDG Base Directories
|
||||
|
||||
|
|
|
|||
|
|
@ -1,19 +1,12 @@
|
|||
# String interpolation
|
||||
|
||||
String interpolation is a language feature where a [string], [path], or [attribute name] can contain expressions enclosed in `${ }` (dollar-sign with curly brackets).
|
||||
String interpolation is a language feature where a [string], [path], or [attribute name][attribute set] can contain expressions enclosed in `${ }` (dollar-sign with curly brackets).
|
||||
|
||||
Such a string is an *interpolated string*, and an expression inside is an *interpolated expression*.
|
||||
|
||||
Interpolated expressions must evaluate to one of the following:
|
||||
|
||||
- a [string]
|
||||
- a [path]
|
||||
- a [derivation]
|
||||
Such a construct is called *interpolated string*, and the expression inside is an [interpolated expression](#interpolated-expression).
|
||||
|
||||
[string]: ./values.md#type-string
|
||||
[path]: ./values.md#type-path
|
||||
[attribute name]: ./values.md#attribute-set
|
||||
[derivation]: ../glossary.md#gloss-derivation
|
||||
[attribute set]: ./values.md#attribute-set
|
||||
|
||||
## Examples
|
||||
|
||||
|
|
@ -70,13 +63,136 @@ you can instead write
|
|||
|
||||
### Attribute name
|
||||
|
||||
Attribute names can be created dynamically with string interpolation:
|
||||
<!--
|
||||
FIXME: these examples are redundant with the main page on attribute sets.
|
||||
figure out what to do about that
|
||||
-->
|
||||
|
||||
```nix
|
||||
let name = "foo"; in
|
||||
{
|
||||
${name} = "bar";
|
||||
}
|
||||
```
|
||||
Attribute names can be interpolated strings.
|
||||
|
||||
{ foo = "bar"; }
|
||||
> **Example**
|
||||
>
|
||||
> ```nix
|
||||
> let name = "foo"; in
|
||||
> { ${name} = 123; }
|
||||
> ```
|
||||
>
|
||||
> { foo = 123; }
|
||||
|
||||
Attributes can be selected with interpolated strings.
|
||||
|
||||
> **Example**
|
||||
>
|
||||
> ```nix
|
||||
> let name = "foo"; in
|
||||
> { foo = 123; }.${name}
|
||||
> ```
|
||||
>
|
||||
> 123
|
||||
|
||||
# Interpolated expression
|
||||
|
||||
An interpolated expression must evaluate to one of the following:
|
||||
|
||||
- a [string]
|
||||
- a [path]
|
||||
- an [attribute set] that has a `__toString` attribute or an `outPath` attribute
|
||||
|
||||
- `__toString` must be a function that takes the attribute set itself and returns a string
|
||||
- `outPath` must be a string
|
||||
|
||||
This includes [derivations](./derivations.md) or [flake inputs](@docroot@/command-ref/new-cli/nix3-flake.md#flake-inputs) (experimental).
|
||||
|
||||
A string interpolates to itself.
|
||||
|
||||
A path in an interpolated expression is first copied into the Nix store, and the resulting string is the [store path] of the newly created [store object](../glossary.md#gloss-store-object).
|
||||
|
||||
[store path]: ../glossary.md#gloss-store-path
|
||||
|
||||
> **Example**
|
||||
>
|
||||
> ```console
|
||||
> $ mkdir foo
|
||||
> ```
|
||||
>
|
||||
> Reference the empty directory in an interpolated expression:
|
||||
>
|
||||
> ```nix
|
||||
> "${./foo}"
|
||||
> ```
|
||||
>
|
||||
> "/nix/store/2hhl2nz5v0khbn06ys82nrk99aa1xxdw-foo"
|
||||
|
||||
A derivation interpolates to the [store path] of its first [output](./derivations.md#attr-outputs).
|
||||
|
||||
> **Example**
|
||||
>
|
||||
> ```nix
|
||||
> let
|
||||
> pkgs = import <nixpkgs> {};
|
||||
> in
|
||||
> "${pkgs.hello}"
|
||||
> ```
|
||||
>
|
||||
> "/nix/store/4xpfqf29z4m8vbhrqcz064wfmb46w5r7-hello-2.12.1"
|
||||
|
||||
An attribute set interpolates to the return value of the function in the `__toString` applied to the attribute set itself.
|
||||
|
||||
> **Example**
|
||||
>
|
||||
> ```nix
|
||||
> let
|
||||
> a = {
|
||||
> value = 1;
|
||||
> __toString = self: toString (self.value + 1);
|
||||
> };
|
||||
> in
|
||||
> "${a}"
|
||||
> ```
|
||||
>
|
||||
> "2"
|
||||
|
||||
An attribute set also interpolates to the value of its `outPath` attribute.
|
||||
|
||||
> **Example**
|
||||
>
|
||||
> ```nix
|
||||
> let
|
||||
> a = { outPath = "foo"; };
|
||||
> in
|
||||
> "${a}"
|
||||
> ```
|
||||
>
|
||||
> "foo"
|
||||
|
||||
If both `__toString` and `outPath` are present in an attribute set, `__toString` takes precedence.
|
||||
|
||||
> **Example**
|
||||
>
|
||||
> ```nix
|
||||
> let
|
||||
> a = { __toString = _: "yes"; outPath = throw "no"; };
|
||||
> in
|
||||
> "${a}"
|
||||
> ```
|
||||
>
|
||||
> "yes"
|
||||
|
||||
If neither is present, an error is thrown.
|
||||
|
||||
> **Example**
|
||||
>
|
||||
> ```nix
|
||||
> let
|
||||
> a = {};
|
||||
> in
|
||||
> "${a}"
|
||||
> ```
|
||||
>
|
||||
> error: cannot coerce a set to a string
|
||||
>
|
||||
> at «string»:4:2:
|
||||
>
|
||||
> 3| in
|
||||
> 4| "${a}"
|
||||
> | ^
|
||||
|
|
|
|||
|
|
@ -107,18 +107,16 @@
|
|||
e.g. `~/foo` would be equivalent to `/home/edolstra/foo` for a user
|
||||
whose home directory is `/home/edolstra`.
|
||||
|
||||
When an [interpolated string][string interpolation] evaluates to a path, the path is first copied into the Nix store and the resulting string is the [store path] of the newly created [store object].
|
||||
|
||||
[store path]: ../glossary.md#gloss-store-path
|
||||
[store object]: ../glossary.md#gloss-store-object
|
||||
|
||||
For instance, evaluating `"${./foo.txt}"` will cause `foo.txt` in the current directory to be copied into the Nix store and result in the string `"/nix/store/<hash>-foo.txt"`.
|
||||
|
||||
Note that the Nix language assumes that all input files will remain _unchanged_ while evaluating a Nix expression.
|
||||
For example, assume you used a file path in an interpolated string during a `nix repl` session.
|
||||
Later in the same session, after having changed the file contents, evaluating the interpolated string with the file path again might not return a new store path, since Nix might not re-read the file contents.
|
||||
Later in the same session, after having changed the file contents, evaluating the interpolated string with the file path again might not return a new [store path], since Nix might not re-read the file contents.
|
||||
|
||||
Paths support [string interpolation].
|
||||
[store path]: ../glossary.md#gloss-store-path
|
||||
|
||||
Paths can include [string interpolation] and can themselves be [interpolated in other expressions].
|
||||
[interpolated in other expressions]: ./string-interpolation.md#interpolated-expressions
|
||||
|
||||
At least one slash (`/`) must appear *before* any interpolated expression for the result to be recognized as a path.
|
||||
|
||||
|
|
|
|||
144
flake.nix
144
flake.nix
|
|
@ -59,29 +59,40 @@
|
|||
# that would interfere with repo semantics.
|
||||
fileset.fileFilter (f: f.name != ".gitignore") ./.;
|
||||
|
||||
configureFiles = fileset.unions [
|
||||
./.version
|
||||
./configure.ac
|
||||
./m4
|
||||
# TODO: do we really need README.md? It doesn't seem used in the build.
|
||||
./README.md
|
||||
];
|
||||
|
||||
topLevelBuildFiles = fileset.unions [
|
||||
./local.mk
|
||||
./Makefile
|
||||
./Makefile.config.in
|
||||
./mk
|
||||
];
|
||||
|
||||
functionalTestFiles = fileset.unions [
|
||||
./tests/functional
|
||||
(fileset.fileFilter (f: lib.strings.hasPrefix "nix-profile" f.name) ./scripts)
|
||||
];
|
||||
|
||||
nixSrc = fileset.toSource {
|
||||
root = ./.;
|
||||
fileset = fileset.intersect baseFiles (fileset.unions [
|
||||
./.version
|
||||
configureFiles
|
||||
topLevelBuildFiles
|
||||
./boehmgc-coroutine-sp-fallback.diff
|
||||
./bootstrap.sh
|
||||
./configure.ac
|
||||
./doc
|
||||
./local.mk
|
||||
./m4
|
||||
./Makefile
|
||||
./Makefile.config.in
|
||||
./misc
|
||||
./mk
|
||||
./precompiled-headers.h
|
||||
./src
|
||||
./tests/functional
|
||||
./unit-test-data
|
||||
./COPYING
|
||||
./scripts/local.mk
|
||||
(fileset.fileFilter (f: lib.strings.hasPrefix "nix-profile" f.name) ./scripts)
|
||||
# TODO: do we really need README.md? It doesn't seem used in the build.
|
||||
./README.md
|
||||
functionalTestFiles
|
||||
]);
|
||||
};
|
||||
|
||||
|
|
@ -252,7 +263,6 @@
|
|||
testNixVersions = pkgs: client: daemon: with commonDeps { inherit pkgs; }; with pkgs.lib; pkgs.stdenv.mkDerivation {
|
||||
NIX_DAEMON_PACKAGE = daemon;
|
||||
NIX_CLIENT_PACKAGE = client;
|
||||
HAVE_LOCAL_NIX_BUILD = false;
|
||||
name =
|
||||
"nix-tests"
|
||||
+ optionalString
|
||||
|
|
@ -261,7 +271,14 @@
|
|||
"-${client.version}-against-${daemon.version}";
|
||||
inherit version;
|
||||
|
||||
src = nixSrc;
|
||||
src = fileset.toSource {
|
||||
root = ./.;
|
||||
fileset = fileset.intersect baseFiles (fileset.unions [
|
||||
configureFiles
|
||||
topLevelBuildFiles
|
||||
functionalTestFiles
|
||||
]);
|
||||
};
|
||||
|
||||
VERSION_SUFFIX = versionSuffix;
|
||||
|
||||
|
|
@ -271,19 +288,20 @@
|
|||
|
||||
enableParallelBuilding = true;
|
||||
|
||||
configureFlags = testConfigureFlags; # otherwise configure fails
|
||||
configureFlags =
|
||||
testConfigureFlags # otherwise configure fails
|
||||
++ [ "--disable-build" ];
|
||||
dontBuild = true;
|
||||
doInstallCheck = true;
|
||||
|
||||
buildPhase = ''
|
||||
# Remove the source files to make sure that we're not accidentally rebuilding Nix
|
||||
rm src/**/*.cc
|
||||
'';
|
||||
|
||||
installPhase = ''
|
||||
mkdir -p $out
|
||||
'';
|
||||
|
||||
installCheckPhase = "make installcheck -j$NIX_BUILD_CORES -l$NIX_BUILD_CORES";
|
||||
installCheckPhase = ''
|
||||
mkdir -p src/nix-channel
|
||||
make installcheck -j$NIX_BUILD_CORES -l$NIX_BUILD_CORES
|
||||
'';
|
||||
};
|
||||
|
||||
binaryTarball = nix: pkgs:
|
||||
|
|
@ -459,7 +477,15 @@
|
|||
passthru.perl-bindings = with final; perl.pkgs.toPerlModule (currentStdenv.mkDerivation {
|
||||
name = "nix-perl-${version}";
|
||||
|
||||
src = self;
|
||||
src = fileset.toSource {
|
||||
root = ./.;
|
||||
fileset = fileset.intersect baseFiles (fileset.unions [
|
||||
./perl
|
||||
./.version
|
||||
./m4
|
||||
./mk
|
||||
]);
|
||||
};
|
||||
|
||||
nativeBuildInputs =
|
||||
[ buildPackages.autoconf-archive
|
||||
|
|
@ -509,18 +535,6 @@
|
|||
};
|
||||
};
|
||||
|
||||
nixos-lib = import (nixpkgs + "/nixos/lib") { };
|
||||
|
||||
# https://nixos.org/manual/nixos/unstable/index.html#sec-calling-nixos-tests
|
||||
runNixOSTestFor = system: test: nixos-lib.runTest {
|
||||
imports = [ test ];
|
||||
hostPkgs = nixpkgsFor.${system}.native;
|
||||
defaults = {
|
||||
nixpkgs.pkgs = nixpkgsFor.${system}.native;
|
||||
};
|
||||
_module.args.nixpkgs = nixpkgs;
|
||||
};
|
||||
|
||||
in {
|
||||
# A Nixpkgs overlay that overrides the 'nix' and
|
||||
# 'nix.perl-bindings' packages.
|
||||
|
|
@ -627,49 +641,29 @@
|
|||
};
|
||||
|
||||
# System tests.
|
||||
tests.authorization = runNixOSTestFor "x86_64-linux" ./tests/nixos/authorization.nix;
|
||||
tests = import ./tests/nixos { inherit lib nixpkgs nixpkgsFor; } // {
|
||||
|
||||
tests.remoteBuilds = runNixOSTestFor "x86_64-linux" ./tests/nixos/remote-builds.nix;
|
||||
# Make sure that nix-env still produces the exact same result
|
||||
# on a particular version of Nixpkgs.
|
||||
evalNixpkgs =
|
||||
with nixpkgsFor.x86_64-linux.native;
|
||||
runCommand "eval-nixos" { buildInputs = [ nix ]; }
|
||||
''
|
||||
type -p nix-env
|
||||
# Note: we're filtering out nixos-install-tools because https://github.com/NixOS/nixpkgs/pull/153594#issuecomment-1020530593.
|
||||
time nix-env --store dummy:// -f ${nixpkgs-regression} -qaP --drv-path | sort | grep -v nixos-install-tools > packages
|
||||
[[ $(sha1sum < packages | cut -c1-40) = ff451c521e61e4fe72bdbe2d0ca5d1809affa733 ]]
|
||||
mkdir $out
|
||||
'';
|
||||
|
||||
tests.nix-copy-closure = runNixOSTestFor "x86_64-linux" ./tests/nixos/nix-copy-closure.nix;
|
||||
|
||||
tests.nix-copy = runNixOSTestFor "x86_64-linux" ./tests/nixos/nix-copy.nix;
|
||||
|
||||
tests.nssPreload = runNixOSTestFor "x86_64-linux" ./tests/nixos/nss-preload.nix;
|
||||
|
||||
tests.githubFlakes = runNixOSTestFor "x86_64-linux" ./tests/nixos/github-flakes.nix;
|
||||
|
||||
tests.sourcehutFlakes = runNixOSTestFor "x86_64-linux" ./tests/nixos/sourcehut-flakes.nix;
|
||||
|
||||
tests.tarballFlakes = runNixOSTestFor "x86_64-linux" ./tests/nixos/tarball-flakes.nix;
|
||||
|
||||
tests.containers = runNixOSTestFor "x86_64-linux" ./tests/nixos/containers/containers.nix;
|
||||
|
||||
tests.setuid = lib.genAttrs
|
||||
["i686-linux" "x86_64-linux"]
|
||||
(system: runNixOSTestFor system ./tests/nixos/setuid.nix);
|
||||
|
||||
|
||||
# Make sure that nix-env still produces the exact same result
|
||||
# on a particular version of Nixpkgs.
|
||||
tests.evalNixpkgs =
|
||||
with nixpkgsFor.x86_64-linux.native;
|
||||
runCommand "eval-nixos" { buildInputs = [ nix ]; }
|
||||
''
|
||||
type -p nix-env
|
||||
# Note: we're filtering out nixos-install-tools because https://github.com/NixOS/nixpkgs/pull/153594#issuecomment-1020530593.
|
||||
time nix-env --store dummy:// -f ${nixpkgs-regression} -qaP --drv-path | sort | grep -v nixos-install-tools > packages
|
||||
[[ $(sha1sum < packages | cut -c1-40) = ff451c521e61e4fe72bdbe2d0ca5d1809affa733 ]]
|
||||
mkdir $out
|
||||
'';
|
||||
|
||||
tests.nixpkgsLibTests =
|
||||
forAllSystems (system:
|
||||
import (nixpkgs + "/lib/tests/release.nix")
|
||||
{ pkgs = nixpkgsFor.${system}.native;
|
||||
nixVersions = [ self.packages.${system}.nix ];
|
||||
}
|
||||
);
|
||||
nixpkgsLibTests =
|
||||
forAllSystems (system:
|
||||
import (nixpkgs + "/lib/tests/release.nix")
|
||||
{ pkgs = nixpkgsFor.${system}.native;
|
||||
nixVersions = [ self.packages.${system}.nix ];
|
||||
}
|
||||
);
|
||||
};
|
||||
|
||||
metrics.nixpkgs = import "${nixpkgs-regression}/pkgs/top-level/metrics.nix" {
|
||||
pkgs = nixpkgsFor.x86_64-linux.native;
|
||||
|
|
|
|||
2
local.mk
2
local.mk
|
|
@ -1,5 +1,3 @@
|
|||
clean-files += Makefile.config
|
||||
|
||||
GLOBAL_CXXFLAGS += -Wno-deprecated-declarations -Werror=switch
|
||||
# Allow switch-enum to be overridden for files that do not support it, usually because of dependency headers.
|
||||
ERROR_SWITCH_ENUM = -Werror=switch-enum
|
||||
|
|
|
|||
|
|
@ -1,6 +1,12 @@
|
|||
makefiles = local.mk
|
||||
|
||||
GLOBAL_CXXFLAGS += -g -Wall -std=c++2a -I ../src
|
||||
GLOBAL_CXXFLAGS += -g -Wall -std=c++2a
|
||||
|
||||
# A convenience for concurrent development of Nix and its Perl bindings.
|
||||
# Not needed in a standalone build of the Perl bindings.
|
||||
ifneq ("$(wildcard ../src)", "")
|
||||
GLOBAL_CXXFLAGS += -I ../src
|
||||
endif
|
||||
|
||||
-include Makefile.config
|
||||
|
||||
|
|
|
|||
|
|
@ -258,64 +258,71 @@ static RegisterPrimOp primop_import({
|
|||
.args = {"path"},
|
||||
// TODO turn "normal path values" into link below
|
||||
.doc = R"(
|
||||
Load, parse and return the Nix expression in the file *path*.
|
||||
|
||||
The value *path* can be a path, a string, or an attribute set with an
|
||||
`__toString` attribute or a `outPath` attribute (as derivations or flake
|
||||
inputs typically have).
|
||||
|
||||
If *path* is a directory, the file `default.nix` in that directory
|
||||
is loaded.
|
||||
|
||||
Evaluation aborts if the file doesn’t exist or contains
|
||||
an incorrect Nix expression. `import` implements Nix’s module
|
||||
system: you can put any Nix expression (such as a set or a
|
||||
function) in a separate file, and use it from Nix expressions in
|
||||
other files.
|
||||
Load, parse, and return the Nix expression in the file *path*.
|
||||
|
||||
> **Note**
|
||||
>
|
||||
> Unlike some languages, `import` is a regular function in Nix.
|
||||
> Paths using the angle bracket syntax (e.g., `import` *\<foo\>*)
|
||||
> are normal [path values](@docroot@/language/values.md#type-path).
|
||||
|
||||
A Nix expression loaded by `import` must not contain any *free
|
||||
variables* (identifiers that are not defined in the Nix expression
|
||||
itself and are not built-in). Therefore, it cannot refer to
|
||||
variables that are in scope at the call site. For instance, if you
|
||||
have a calling expression
|
||||
The *path* argument must meet the same criteria as an [interpolated expression](@docroot@/language/string-interpolation.md#interpolated-expression).
|
||||
|
||||
```nix
|
||||
rec {
|
||||
x = 123;
|
||||
y = import ./foo.nix;
|
||||
}
|
||||
```
|
||||
If *path* is a directory, the file `default.nix` in that directory is used if it exists.
|
||||
|
||||
then the following `foo.nix` will give an error:
|
||||
> **Example**
|
||||
>
|
||||
> ```console
|
||||
> $ echo 123 > default.nix
|
||||
> ```
|
||||
>
|
||||
> Import `default.nix` from the current directory.
|
||||
>
|
||||
> ```nix
|
||||
> import ./.
|
||||
> ```
|
||||
>
|
||||
> 123
|
||||
|
||||
```nix
|
||||
x + 456
|
||||
```
|
||||
Evaluation aborts if the file doesn’t exist or contains an invalid Nix expression.
|
||||
|
||||
since `x` is not in scope in `foo.nix`. If you want `x` to be
|
||||
available in `foo.nix`, you should pass it as a function argument:
|
||||
A Nix expression loaded by `import` must not contain any *free variables*, that is, identifiers that are not defined in the Nix expression itself and are not built-in.
|
||||
Therefore, it cannot refer to variables that are in scope at the call site.
|
||||
|
||||
```nix
|
||||
rec {
|
||||
x = 123;
|
||||
y = import ./foo.nix x;
|
||||
}
|
||||
```
|
||||
|
||||
and
|
||||
|
||||
```nix
|
||||
x: x + 456
|
||||
```
|
||||
|
||||
(The function argument doesn’t have to be called `x` in `foo.nix`;
|
||||
any name would work.)
|
||||
> **Example**
|
||||
>
|
||||
> If you have a calling expression
|
||||
>
|
||||
> ```nix
|
||||
> rec {
|
||||
> x = 123;
|
||||
> y = import ./foo.nix;
|
||||
> }
|
||||
> ```
|
||||
>
|
||||
> then the following `foo.nix` will give an error:
|
||||
>
|
||||
> ```nix
|
||||
> # foo.nix
|
||||
> x + 456
|
||||
> ```
|
||||
>
|
||||
> since `x` is not in scope in `foo.nix`.
|
||||
> If you want `x` to be available in `foo.nix`, pass it as a function argument:
|
||||
>
|
||||
> ```nix
|
||||
> rec {
|
||||
> x = 123;
|
||||
> y = import ./foo.nix x;
|
||||
> }
|
||||
> ```
|
||||
>
|
||||
> and
|
||||
>
|
||||
> ```nix
|
||||
> # foo.nix
|
||||
> x: x + 456
|
||||
> ```
|
||||
>
|
||||
> The function argument doesn’t have to be called `x` in `foo.nix`; any name would work.
|
||||
)",
|
||||
.fun = [](EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -1,7 +1,3 @@
|
|||
# whether to run the tests that assume that we have a local build of
|
||||
# Nix
|
||||
HAVE_LOCAL_NIX_BUILD ?= 1
|
||||
|
||||
nix_tests = \
|
||||
test-infra.sh \
|
||||
init.sh \
|
||||
|
|
@ -131,7 +127,7 @@ ifeq ($(HAVE_LIBCPUID), 1)
|
|||
nix_tests += compute-levels.sh
|
||||
endif
|
||||
|
||||
ifeq ($(HAVE_LOCAL_NIX_BUILD), 1)
|
||||
ifeq ($(ENABLE_BUILD), yes)
|
||||
nix_tests += test-libstoreconsumer.sh
|
||||
|
||||
ifeq ($(BUILD_SHARED_LIBS), 1)
|
||||
|
|
|
|||
41
tests/nixos/default.nix
Normal file
41
tests/nixos/default.nix
Normal file
|
|
@ -0,0 +1,41 @@
|
|||
{ lib, nixpkgs, nixpkgsFor }:
|
||||
|
||||
let
|
||||
|
||||
nixos-lib = import (nixpkgs + "/nixos/lib") { };
|
||||
|
||||
# https://nixos.org/manual/nixos/unstable/index.html#sec-calling-nixos-tests
|
||||
runNixOSTestFor = system: test: nixos-lib.runTest {
|
||||
imports = [ test ];
|
||||
hostPkgs = nixpkgsFor.${system}.native;
|
||||
defaults = {
|
||||
nixpkgs.pkgs = nixpkgsFor.${system}.native;
|
||||
};
|
||||
_module.args.nixpkgs = nixpkgs;
|
||||
};
|
||||
|
||||
in
|
||||
|
||||
{
|
||||
authorization = runNixOSTestFor "x86_64-linux" ./authorization.nix;
|
||||
|
||||
remoteBuilds = runNixOSTestFor "x86_64-linux" ./remote-builds.nix;
|
||||
|
||||
nix-copy-closure = runNixOSTestFor "x86_64-linux" ./nix-copy-closure.nix;
|
||||
|
||||
nix-copy = runNixOSTestFor "x86_64-linux" ./nix-copy.nix;
|
||||
|
||||
nssPreload = runNixOSTestFor "x86_64-linux" ./nss-preload.nix;
|
||||
|
||||
githubFlakes = runNixOSTestFor "x86_64-linux" ./github-flakes.nix;
|
||||
|
||||
sourcehutFlakes = runNixOSTestFor "x86_64-linux" ./sourcehut-flakes.nix;
|
||||
|
||||
tarballFlakes = runNixOSTestFor "x86_64-linux" ./tarball-flakes.nix;
|
||||
|
||||
containers = runNixOSTestFor "x86_64-linux" ./containers/containers.nix;
|
||||
|
||||
setuid = lib.genAttrs
|
||||
["i686-linux" "x86_64-linux"]
|
||||
(system: runNixOSTestFor system ./setuid.nix);
|
||||
}
|
||||
Loading…
Reference in a new issue