use std::env;
use std::fs::{self, File};
use std::io;
use std::io::prelude::*;
use std::thread;
use cargo::util::paths::remove_dir_all;
use cargo_test_support::paths::CargoPathExt;
use cargo_test_support::registry::Package;
use cargo_test_support::{basic_manifest, cross_compile, project};
use cargo_test_support::{rustc_host, sleep_ms, slow_cpu_multiplier};
#[cargo_test]
fn custom_build_script_failed() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("src/main.rs", "fn main() {}")
.file("build.rs", "fn main() { std::process::exit(101); }")
.build();
p.cargo("build -v")
.with_status(101)
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `rustc --crate-name build_script_build build.rs [..]--crate-type bin [..]`
[RUNNING] `[..]/build-script-build`
[ERROR] failed to run custom build command for `foo v0.5.0 ([CWD])`
Caused by:
process didn't exit successfully: `[..]/build-script-build` (exit code: 101)",
)
.run();
}
#[cargo_test]
fn custom_build_env_vars() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
[features]
bar_feat = ["bar/foo"]
[dependencies.bar]
path = "bar"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"bar/Cargo.toml",
r#"
[project]
name = "bar"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
[features]
foo = []
"#,
)
.file("bar/src/lib.rs", "pub fn hello() {}");
let file_content = format!(
r#"
use std::env;
use std::io::prelude::*;
use std::path::Path;
use std::fs;
fn main() {{
let _target = env::var("TARGET").unwrap();
let _ncpus = env::var("NUM_JOBS").unwrap();
let _dir = env::var("CARGO_MANIFEST_DIR").unwrap();
let opt = env::var("OPT_LEVEL").unwrap();
assert_eq!(opt, "0");
let opt = env::var("PROFILE").unwrap();
assert_eq!(opt, "debug");
let debug = env::var("DEBUG").unwrap();
assert_eq!(debug, "true");
let out = env::var("OUT_DIR").unwrap();
assert!(out.starts_with(r"{0}"));
assert!(fs::metadata(&out).map(|m| m.is_dir()).unwrap_or(false));
let _host = env::var("HOST").unwrap();
let _feat = env::var("CARGO_FEATURE_FOO").unwrap();
let _cargo = env::var("CARGO").unwrap();
let rustc = env::var("RUSTC").unwrap();
assert_eq!(rustc, "rustc");
let rustdoc = env::var("RUSTDOC").unwrap();
assert_eq!(rustdoc, "rustdoc");
assert!(env::var("RUSTC_LINKER").is_err());
}}
"#,
p.root()
.join("target")
.join("debug")
.join("build")
.display()
);
let p = p.file("bar/build.rs", &file_content).build();
p.cargo("build --features bar_feat").run();
}
#[cargo_test]
fn custom_build_env_var_rustc_linker() {
if cross_compile::disabled() {
return;
}
let target = cross_compile::alternate();
let p = project()
.file(
".cargo/config",
&format!(
r#"
[target.{}]
linker = "/path/to/linker"
"#,
target
),
)
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert!(env::var("RUSTC_LINKER").unwrap().ends_with("/path/to/linker"));
}
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build --target").arg(&target).run();
}
#[cargo_test]
fn custom_build_script_wrong_rustc_flags() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"build.rs",
r#"fn main() { println!("cargo:rustc-flags=-aaa -bbb"); }"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_contains(
"[ERROR] Only `-l` and `-L` flags are allowed in build script of `foo v0.5.0 ([CWD])`: \
`-aaa -bbb`",
)
.run();
}
#[cargo_test]
fn custom_build_script_rustc_flags() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "bar"
version = "0.5.0"
authors = ["wycats@example.com"]
[dependencies.foo]
path = "foo"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"foo/Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("foo/src/lib.rs", "")
.file(
"foo/build.rs",
r#"
fn main() {
println!("cargo:rustc-flags=-l nonexistinglib -L /dummy/path1 -L /dummy/path2");
}
"#,
)
.build();
p.cargo("build --verbose")
.with_stderr(
"\
[COMPILING] foo [..]
[RUNNING] `rustc --crate-name build_script_build foo/build.rs [..]
[RUNNING] `[..]build-script-build`
[RUNNING] `rustc --crate-name foo foo/src/lib.rs [..]\
-L dependency=[CWD]/target/debug/deps \
-L /dummy/path1 -L /dummy/path2 -l nonexistinglib`
[COMPILING] bar [..]
[RUNNING] `rustc --crate-name bar src/main.rs [..]\
-L dependency=[CWD]/target/debug/deps \
--extern foo=[..]libfoo-[..] \
-L /dummy/path1 -L /dummy/path2`
[FINISHED] dev [..]
",
)
.run();
}
#[cargo_test]
fn custom_build_script_rustc_flags_no_space() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "bar"
version = "0.5.0"
authors = ["wycats@example.com"]
[dependencies.foo]
path = "foo"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"foo/Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("foo/src/lib.rs", "")
.file(
"foo/build.rs",
r#"
fn main() {
println!("cargo:rustc-flags=-lnonexistinglib -L/dummy/path1 -L/dummy/path2");
}
"#,
)
.build();
p.cargo("build --verbose")
.with_stderr(
"\
[COMPILING] foo [..]
[RUNNING] `rustc --crate-name build_script_build foo/build.rs [..]
[RUNNING] `[..]build-script-build`
[RUNNING] `rustc --crate-name foo foo/src/lib.rs [..]\
-L dependency=[CWD]/target/debug/deps \
-L /dummy/path1 -L /dummy/path2 -l nonexistinglib`
[COMPILING] bar [..]
[RUNNING] `rustc --crate-name bar src/main.rs [..]\
-L dependency=[CWD]/target/debug/deps \
--extern foo=[..]libfoo-[..] \
-L /dummy/path1 -L /dummy/path2`
[FINISHED] dev [..]
",
)
.run();
}
#[cargo_test]
fn links_no_build_cmd() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr(
"\
[ERROR] failed to parse manifest at `[..]/foo/Cargo.toml`
Caused by:
package `foo v0.5.0 ([CWD])` specifies that it links to `a` but does \
not have a custom build script
",
)
.run();
}
#[cargo_test]
fn links_duplicates() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
[dependencies.a-sys]
path = "a-sys"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "")
.file(
"a-sys/Cargo.toml",
r#"
[project]
name = "a-sys"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("a-sys/src/lib.rs", "")
.file("a-sys/build.rs", "")
.build();
p.cargo("build").with_status(101)
.with_stderr("\
error: failed to select a version for `a-sys`.
... required by package `foo v0.5.0 ([..])`
versions that meet the requirements `*` are: 0.5.0
the package `a-sys` links to the native library `a`, but it conflicts with a previous package which links to `a` as well:
package `foo v0.5.0 ([..])`
failed to select a version for `a-sys` which could resolve this conflict
").run();
}
#[cargo_test]
fn links_duplicates_old_registry() {
Package::new("bar", "0.1.0")
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.1.0"
links = "a"
"#,
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
links = "a"
[dependencies]
bar = "0.1"
"#,
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr(
"\
[UPDATING] `[..]` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 ([..])
[ERROR] multiple packages link to native library `a`, \
but a native library can be linked only once
package `bar v0.1.0`
... which is depended on by `foo v0.1.0 ([..]foo)`
links to native library `a`
package `foo v0.1.0 ([..]foo)`
also links to native library `a`
",
)
.run();
}
#[cargo_test]
fn links_duplicates_deep_dependency() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a-sys]
path = "a-sys"
"#,
)
.file("a/src/lib.rs", "")
.file("a/build.rs", "")
.file(
"a/a-sys/Cargo.toml",
r#"
[project]
name = "a-sys"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("a/a-sys/src/lib.rs", "")
.file("a/a-sys/build.rs", "")
.build();
p.cargo("build").with_status(101)
.with_stderr("\
error: failed to select a version for `a-sys`.
... required by package `a v0.5.0 ([..])`
... which is depended on by `foo v0.5.0 ([..])`
versions that meet the requirements `*` are: 0.5.0
the package `a-sys` links to the native library `a`, but it conflicts with a previous package which links to `a` as well:
package `foo v0.5.0 ([..])`
failed to select a version for `a-sys` which could resolve this conflict
").run();
}
#[cargo_test]
fn overrides_and_links() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").ok().expect("FOO missing"),
"bar");
assert_eq!(env::var("DEP_FOO_BAR").ok().expect("BAR missing"),
"baz");
}
"#,
)
.file(
".cargo/config",
&format!(
r#"
[target.{}.foo]
rustc-flags = "-L foo -L bar"
foo = "bar"
bar = "baz"
"#,
target
),
)
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file("a/build.rs", "not valid rust code")
.build();
p.cargo("build -v")
.with_stderr(
"\
[..]
[..]
[..]
[..]
[..]
[RUNNING] `rustc --crate-name foo [..] -L foo -L bar`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn unused_overrides() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file(
".cargo/config",
&format!(
r#"
[target.{}.foo]
rustc-flags = "-L foo -L bar"
foo = "bar"
bar = "baz"
"#,
target
),
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn links_passes_env_vars() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").unwrap(), "bar");
assert_eq!(env::var("DEP_FOO_BAR").unwrap(), "baz");
}
"#,
)
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
use std::env;
fn main() {
let lib = env::var("CARGO_MANIFEST_LINKS").unwrap();
assert_eq!(lib, "foo");
println!("cargo:foo=bar");
println!("cargo:bar=baz");
}
"#,
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn only_rerun_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.build();
p.cargo("build -v").run();
p.root().move_into_the_past();
File::create(&p.root().join("some-new-file")).unwrap();
p.root().move_into_the_past();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `[..]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn rebuild_continues_to_pass_env_vars() {
let a = project()
.at("a")
.file(
"Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::time::Duration;
fn main() {
println!("cargo:foo=bar");
println!("cargo:bar=baz");
std::thread::sleep(Duration::from_millis(500));
}
"#,
)
.build();
a.root().move_into_the_past();
let p = project()
.file(
"Cargo.toml",
&format!(
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = '{}'
"#,
a.root().display()
),
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").unwrap(), "bar");
assert_eq!(env::var("DEP_FOO_BAR").unwrap(), "baz");
}
"#,
)
.build();
p.cargo("build -v").run();
p.root().move_into_the_past();
File::create(&p.root().join("some-new-file")).unwrap();
p.root().move_into_the_past();
p.cargo("build -v").run();
}
#[cargo_test]
fn testing_and_such() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.build();
println!("build");
p.cargo("build -v").run();
p.root().move_into_the_past();
File::create(&p.root().join("src/lib.rs")).unwrap();
p.root().move_into_the_past();
println!("test");
p.cargo("test -vj1")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `[..]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] test [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]/foo-[..][EXE]`
[DOCTEST] foo
[RUNNING] `rustdoc [..]--test [..]`",
)
.with_stdout_contains_n("running 0 tests", 2)
.run();
println!("doc");
p.cargo("doc -v")
.with_stderr(
"\
[DOCUMENTING] foo v0.5.0 ([CWD])
[RUNNING] `rustdoc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
File::create(&p.root().join("src/main.rs"))
.unwrap()
.write_all(b"fn main() {}")
.unwrap();
println!("run");
p.cargo("run")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `target/debug/foo[EXE]`
",
)
.run();
}
#[cargo_test]
fn propagation_of_l_flags() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
[dependencies.b]
path = "../b"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"fn main() { println!("cargo:rustc-flags=-L bar"); }"#,
)
.file(
"b/Cargo.toml",
r#"
[project]
name = "b"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("b/src/lib.rs", "")
.file("b/build.rs", "bad file")
.file(
".cargo/config",
&format!(
r#"
[target.{}.foo]
rustc-flags = "-L foo"
"#,
target
),
)
.build();
p.cargo("build -v -j1")
.with_stderr_contains(
"\
[RUNNING] `rustc --crate-name a [..] -L bar[..]-L foo[..]`
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `rustc --crate-name foo [..] -L bar -L foo`
",
)
.run();
}
#[cargo_test]
fn propagation_of_l_flags_new() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
[dependencies.b]
path = "../b"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=bar");
}
"#,
)
.file(
"b/Cargo.toml",
r#"
[project]
name = "b"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("b/src/lib.rs", "")
.file("b/build.rs", "bad file")
.file(
".cargo/config",
&format!(
r#"
[target.{}.foo]
rustc-link-search = ["foo"]
"#,
target
),
)
.build();
p.cargo("build -v -j1")
.with_stderr_contains(
"\
[RUNNING] `rustc --crate-name a [..] -L bar[..]-L foo[..]`
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `rustc --crate-name foo [..] -L bar -L foo`
",
)
.run();
}
#[cargo_test]
fn build_deps_simple() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
"
#[allow(unused_extern_crates)]
extern crate a;
fn main() {}
",
)
.file("a/Cargo.toml", &basic_manifest("a", "0.5.0"))
.file("a/src/lib.rs", "")
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] a v0.5.0 ([CWD]/a)
[RUNNING] `rustc --crate-name a [..]`
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `rustc [..] build.rs [..] --extern a=[..]`
[RUNNING] `[..]/foo-[..]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn build_deps_not_for_normal() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.aaaaa]
path = "a"
"#,
)
.file(
"src/lib.rs",
"#[allow(unused_extern_crates)] extern crate aaaaa;",
)
.file(
"build.rs",
"
#[allow(unused_extern_crates)]
extern crate aaaaa;
fn main() {}
",
)
.file("a/Cargo.toml", &basic_manifest("aaaaa", "0.5.0"))
.file("a/src/lib.rs", "")
.build();
p.cargo("build -v --target")
.arg(&target)
.with_status(101)
.with_stderr_contains("[..]can't find crate for `aaaaa`[..]")
.with_stderr_contains(
"\
[ERROR] could not compile `foo`.
Caused by:
process didn't exit successfully: [..]
",
)
.run();
}
#[cargo_test]
fn build_cmd_with_a_build_cmd() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
"
#[allow(unused_extern_crates)]
extern crate a;
fn main() {}
",
)
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.b]
path = "../b"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
"#[allow(unused_extern_crates)] extern crate b; fn main() {}",
)
.file("b/Cargo.toml", &basic_manifest("b", "0.5.0"))
.file("b/src/lib.rs", "")
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] b v0.5.0 ([CWD]/b)
[RUNNING] `rustc --crate-name b [..]`
[COMPILING] a v0.5.0 ([CWD]/a)
[RUNNING] `rustc [..] a/build.rs [..] --extern b=[..]`
[RUNNING] `[..]/a-[..]/build-script-build`
[RUNNING] `rustc --crate-name a [..]lib.rs [..]--crate-type lib \
--emit=[..]link -C debuginfo=2 \
-C metadata=[..] \
--out-dir [..]target/debug/deps \
-L [..]target/debug/deps`
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `rustc --crate-name build_script_build build.rs [..]--crate-type bin \
--emit=[..]link \
-C debuginfo=2 -C metadata=[..] --out-dir [..] \
-L [..]target/debug/deps \
--extern a=[..]liba[..].rlib`
[RUNNING] `[..]/foo-[..]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]lib.rs [..]--crate-type lib \
--emit=[..]link -C debuginfo=2 \
-C metadata=[..] \
--out-dir [..] \
-L [..]target/debug/deps`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn out_dir_is_preserved() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
use std::fs::File;
use std::path::Path;
fn main() {
let out = env::var("OUT_DIR").unwrap();
File::create(Path::new(&out).join("foo")).unwrap();
}
"#,
)
.build();
p.cargo("build -v").run();
p.root().move_into_the_past();
File::create(&p.root().join("build.rs"))
.unwrap()
.write_all(
br#"
use std::env;
use std::old_io::File;
fn main() {
let out = env::var("OUT_DIR").unwrap();
File::open(&Path::new(&out).join("foo")).unwrap();
}
"#,
)
.unwrap();
p.root().move_into_the_past();
p.cargo("build -v").run();
p.cargo("build -v").run();
File::create(&p.root().join("foo")).unwrap();
p.cargo("build -v").run();
}
#[cargo_test]
fn output_separate_lines() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-flags=-L foo");
println!("cargo:rustc-flags=-l static=foo");
}
"#,
)
.build();
p.cargo("build -v")
.with_status(101)
.with_stderr_contains(
"\
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `rustc [..] build.rs [..]`
[RUNNING] `[..]/foo-[..]/build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L foo -l static=foo`
[ERROR] could not find native static library [..]
",
)
.run();
}
#[cargo_test]
fn output_separate_lines_new() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=foo");
println!("cargo:rustc-link-lib=static=foo");
}
"#,
)
.build();
p.cargo("build -v")
.with_status(101)
.with_stderr_contains(
"\
[COMPILING] foo v0.5.0 ([CWD])
[RUNNING] `rustc [..] build.rs [..]`
[RUNNING] `[..]/foo-[..]/build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L foo -l static=foo`
[ERROR] could not find native static library [..]
",
)
.run();
}
#[cfg(not(windows))] #[cargo_test]
fn code_generation() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file(
"src/main.rs",
r#"
include!(concat!(env!("OUT_DIR"), "/hello.rs"));
fn main() {
println!("{}", message());
}
"#,
)
.file(
"build.rs",
r#"
use std::env;
use std::fs::File;
use std::io::prelude::*;
use std::path::PathBuf;
fn main() {
let dst = PathBuf::from(env::var("OUT_DIR").unwrap());
let mut f = File::create(&dst.join("hello.rs")).unwrap();
f.write_all(b"
pub fn message() -> &'static str {
\"Hello, World!\"
}
").unwrap();
}
"#,
)
.build();
p.cargo("run")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `target/debug/foo`",
)
.with_stdout("Hello, World!")
.run();
p.cargo("test").run();
}
#[cargo_test]
fn release_with_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {}
"#,
)
.build();
p.cargo("build -v --release").run();
}
#[cargo_test]
fn build_script_only() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.0.0"
authors = []
build = "build.rs"
"#,
)
.file("build.rs", r#"fn main() {}"#)
.build();
p.cargo("build -v")
.with_status(101)
.with_stderr(
"\
[ERROR] failed to parse manifest at `[..]`
Caused by:
no targets specified in the manifest
either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present",
)
.run();
}
#[cargo_test]
fn shared_dep_with_a_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
[build-dependencies.b]
path = "b"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
authors = []
[dependencies.a]
path = "../a"
"#,
)
.file("b/src/lib.rs", "")
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn transitive_dep_host() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.b]
path = "b"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
authors = []
[lib]
name = "b"
plugin = true
[dependencies.a]
path = "../a"
"#,
)
.file("b/src/lib.rs", "")
.build();
p.cargo("build").run();
}
#[cargo_test]
fn test_a_lib_with_a_build_command() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file(
"src/lib.rs",
r#"
include!(concat!(env!("OUT_DIR"), "/foo.rs"));
/// ```
/// foo::bar();
/// ```
pub fn bar() {
assert_eq!(foo(), 1);
}
"#,
)
.file(
"build.rs",
r#"
use std::env;
use std::io::prelude::*;
use std::fs::File;
use std::path::PathBuf;
fn main() {
let out = PathBuf::from(env::var("OUT_DIR").unwrap());
File::create(out.join("foo.rs")).unwrap().write_all(b"
fn foo() -> i32 { 1 }
").unwrap();
}
"#,
)
.build();
p.cargo("test").run();
}
#[cargo_test]
fn test_dev_dep_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dev-dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.build();
p.cargo("test").run();
}
#[cargo_test]
fn build_script_with_dynamic_native_dependency() {
let build = project()
.at("builder")
.file(
"Cargo.toml",
r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
[lib]
name = "builder"
crate-type = ["dylib"]
"#,
)
.file("src/lib.rs", "#[no_mangle] pub extern fn foo() {}")
.build();
let foo = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
[build-dependencies.bar]
path = "bar"
"#,
)
.file("build.rs", "extern crate bar; fn main() { bar::bar() }")
.file("src/lib.rs", "")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file(
"bar/build.rs",
r#"
use std::env;
use std::fs;
use std::path::PathBuf;
fn main() {
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
let root = PathBuf::from(env::var("BUILDER_ROOT").unwrap());
let file = format!("{}builder{}",
env::consts::DLL_PREFIX,
env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst = out_dir.join(&file);
fs::copy(src, dst).unwrap();
if cfg!(windows) {
fs::copy(root.join("builder.dll.lib"),
out_dir.join("builder.dll.lib")).unwrap();
}
println!("cargo:rustc-link-search=native={}", out_dir.display());
}
"#,
)
.file(
"bar/src/lib.rs",
r#"
pub fn bar() {
#[cfg_attr(not(target_env = "msvc"), link(name = "builder"))]
#[cfg_attr(target_env = "msvc", link(name = "builder.dll"))]
extern { fn foo(); }
unsafe { foo() }
}
"#,
)
.build();
build
.cargo("build -v")
.env("CARGO_LOG", "cargo::ops::cargo_rustc")
.run();
let root = build.root().join("target").join("debug");
foo.cargo("build -v")
.env("BUILDER_ROOT", root)
.env("CARGO_LOG", "cargo::ops::cargo_rustc")
.run();
}
#[cargo_test]
fn profile_and_opt_level_set_correctly() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("OPT_LEVEL").unwrap(), "3");
assert_eq!(env::var("PROFILE").unwrap(), "release");
assert_eq!(env::var("DEBUG").unwrap(), "false");
}
"#,
)
.build();
p.cargo("bench").run();
}
#[cargo_test]
fn profile_debug_0() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
[profile.dev]
debug = 0
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("OPT_LEVEL").unwrap(), "0");
assert_eq!(env::var("PROFILE").unwrap(), "debug");
assert_eq!(env::var("DEBUG").unwrap(), "false");
}
"#,
)
.build();
p.cargo("build").run();
}
#[cargo_test]
fn build_script_with_lto() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
[profile.dev]
lto = true
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.build();
p.cargo("build").run();
}
#[cargo_test]
fn test_duplicate_deps() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.1.0"
authors = []
build = "build.rs"
[dependencies.bar]
path = "bar"
[build-dependencies.bar]
path = "bar"
"#,
)
.file(
"src/main.rs",
r#"
extern crate bar;
fn main() { bar::do_nothing() }
"#,
)
.file(
"build.rs",
r#"
extern crate bar;
fn main() { bar::do_nothing() }
"#,
)
.file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
.file("bar/src/lib.rs", "pub fn do_nothing() {}")
.build();
p.cargo("build").run();
}
#[cargo_test]
fn cfg_feedback() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file("src/main.rs", "#[cfg(foo)] fn main() {}")
.file(
"build.rs",
r#"fn main() { println!("cargo:rustc-cfg=foo"); }"#,
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn cfg_override() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("src/main.rs", "#[cfg(foo)] fn main() {}")
.file("build.rs", "")
.file(
".cargo/config",
&format!(
r#"
[target.{}.a]
rustc-cfg = ["foo"]
"#,
target
),
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn cfg_test() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo:rustc-cfg=foo"); }"#,
)
.file(
"src/lib.rs",
r#"
///
/// ```
/// extern crate foo;
///
/// fn main() {
/// foo::foo()
/// }
/// ```
///
#[cfg(foo)]
pub fn foo() {}
#[cfg(foo)]
#[test]
fn test_foo() {
foo()
}
"#,
)
.file("tests/test.rs", "#[cfg(foo)] #[test] fn test_bar() {}")
.build();
p.cargo("test -v")
.with_stderr(
"\
[COMPILING] foo v0.0.1 ([CWD])
[RUNNING] [..] build.rs [..]
[RUNNING] `[..]/build-script-build`
[RUNNING] [..] --cfg foo[..]
[RUNNING] [..] --cfg foo[..]
[RUNNING] [..] --cfg foo[..]
[FINISHED] test [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]/foo-[..][EXE]`
[RUNNING] `[..]/test-[..][EXE]`
[DOCTEST] foo
[RUNNING] [..] --cfg foo[..]",
)
.with_stdout_contains("test test_foo ... ok")
.with_stdout_contains("test test_bar ... ok")
.with_stdout_contains_n("test [..] ... ok", 3)
.run();
}
#[cargo_test]
fn cfg_doc() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
[dependencies.bar]
path = "bar"
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo:rustc-cfg=foo"); }"#,
)
.file("src/lib.rs", "#[cfg(foo)] pub fn foo() {}")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file(
"bar/build.rs",
r#"fn main() { println!("cargo:rustc-cfg=bar"); }"#,
)
.file("bar/src/lib.rs", "#[cfg(bar)] pub fn bar() {}")
.build();
p.cargo("doc").run();
assert!(p.root().join("target/doc").is_dir());
assert!(p.root().join("target/doc/foo/fn.foo.html").is_file());
assert!(p.root().join("target/doc/bar/fn.bar.html").is_file());
}
#[cargo_test]
fn cfg_override_test() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
links = "a"
"#,
)
.file("build.rs", "")
.file(
".cargo/config",
&format!(
r#"
[target.{}.a]
rustc-cfg = ["foo"]
"#,
rustc_host()
),
)
.file(
"src/lib.rs",
r#"
///
/// ```
/// extern crate foo;
///
/// fn main() {
/// foo::foo()
/// }
/// ```
///
#[cfg(foo)]
pub fn foo() {}
#[cfg(foo)]
#[test]
fn test_foo() {
foo()
}
"#,
)
.file("tests/test.rs", "#[cfg(foo)] #[test] fn test_bar() {}")
.build();
p.cargo("test -v")
.with_stderr(
"\
[COMPILING] foo v0.0.1 ([CWD])
[RUNNING] `[..]`
[RUNNING] `[..]`
[RUNNING] `[..]`
[FINISHED] test [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]/foo-[..][EXE]`
[RUNNING] `[..]/test-[..][EXE]`
[DOCTEST] foo
[RUNNING] [..] --cfg foo[..]",
)
.with_stdout_contains("test test_foo ... ok")
.with_stdout_contains("test test_bar ... ok")
.with_stdout_contains_n("test [..] ... ok", 3)
.run();
}
#[cargo_test]
fn cfg_override_doc() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
links = "a"
[dependencies.bar]
path = "bar"
"#,
)
.file(
".cargo/config",
&format!(
r#"
[target.{target}.a]
rustc-cfg = ["foo"]
[target.{target}.b]
rustc-cfg = ["bar"]
"#,
target = rustc_host()
),
)
.file("build.rs", "")
.file("src/lib.rs", "#[cfg(foo)] pub fn foo() {}")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.0.1"
authors = []
build = "build.rs"
links = "b"
"#,
)
.file("bar/build.rs", "")
.file("bar/src/lib.rs", "#[cfg(bar)] pub fn bar() {}")
.build();
p.cargo("doc").run();
assert!(p.root().join("target/doc").is_dir());
assert!(p.root().join("target/doc/foo/fn.foo.html").is_file());
assert!(p.root().join("target/doc/bar/fn.bar.html").is_file());
}
#[cargo_test]
fn env_build() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file(
"src/main.rs",
r#"
const FOO: &'static str = env!("FOO");
fn main() {
println!("{}", FOO);
}
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo:rustc-env=FOO=foo"); }"#,
)
.build();
p.cargo("build -v").run();
p.cargo("run -v").with_stdout("foo\n").run();
}
#[cargo_test]
fn env_test() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo:rustc-env=FOO=foo"); }"#,
)
.file(
"src/lib.rs",
r#"pub const FOO: &'static str = env!("FOO"); "#,
)
.file(
"tests/test.rs",
r#"
extern crate foo;
#[test]
fn test_foo() {
assert_eq!("foo", foo::FOO);
}
"#,
)
.build();
p.cargo("test -v")
.with_stderr(
"\
[COMPILING] foo v0.0.1 ([CWD])
[RUNNING] [..] build.rs [..]
[RUNNING] `[..]/build-script-build`
[RUNNING] [..] --crate-name foo[..]
[RUNNING] [..] --crate-name foo[..]
[RUNNING] [..] --crate-name test[..]
[FINISHED] test [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]/foo-[..][EXE]`
[RUNNING] `[..]/test-[..][EXE]`
[DOCTEST] foo
[RUNNING] [..] --crate-name foo[..]",
)
.with_stdout_contains_n("running 0 tests", 2)
.with_stdout_contains("test test_foo ... ok")
.run();
}
#[cargo_test]
fn env_doc() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file(
"src/main.rs",
r#"
const FOO: &'static str = env!("FOO");
fn main() {}
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo:rustc-env=FOO=foo"); }"#,
)
.build();
p.cargo("doc -v").run();
}
#[cargo_test]
fn flags_go_into_tests() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
b = { path = "b" }
"#,
)
.file("src/lib.rs", "")
.file("tests/foo.rs", "")
.file(
"b/Cargo.toml",
r#"
[project]
name = "b"
version = "0.5.0"
authors = []
[dependencies]
a = { path = "../a" }
"#,
)
.file("b/src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=test");
}
"#,
)
.build();
p.cargo("test -v --test=foo")
.with_stderr(
"\
[COMPILING] a v0.5.0 ([..]
[RUNNING] `rustc [..] a/build.rs [..]`
[RUNNING] `[..]/build-script-build`
[RUNNING] `rustc [..] a/src/lib.rs [..] -L test[..]`
[COMPILING] b v0.5.0 ([..]
[RUNNING] `rustc [..] b/src/lib.rs [..] -L test[..]`
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] src/lib.rs [..] -L test[..]`
[RUNNING] `rustc [..] tests/foo.rs [..] -L test[..]`
[FINISHED] test [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]/foo-[..][EXE]`",
)
.with_stdout_contains("running 0 tests")
.run();
p.cargo("test -v -pb --lib")
.with_stderr(
"\
[FRESH] a v0.5.0 ([..]
[COMPILING] b v0.5.0 ([..]
[RUNNING] `rustc [..] b/src/lib.rs [..] -L test[..]`
[FINISHED] test [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]/b-[..][EXE]`",
)
.with_stdout_contains("running 0 tests")
.run();
}
#[cargo_test]
fn diamond_passes_args_only_once() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
a = { path = "a" }
b = { path = "b" }
"#,
)
.file("src/lib.rs", "")
.file("tests/foo.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
[dependencies]
b = { path = "../b" }
c = { path = "../c" }
"#,
)
.file("a/src/lib.rs", "")
.file(
"b/Cargo.toml",
r#"
[project]
name = "b"
version = "0.5.0"
authors = []
[dependencies]
c = { path = "../c" }
"#,
)
.file("b/src/lib.rs", "")
.file(
"c/Cargo.toml",
r#"
[project]
name = "c"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file(
"c/build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=native=test");
}
"#,
)
.file("c/src/lib.rs", "")
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] c v0.5.0 ([..]
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
[RUNNING] `rustc [..]`
[COMPILING] b v0.5.0 ([..]
[RUNNING] `rustc [..]`
[COMPILING] a v0.5.0 ([..]
[RUNNING] `rustc [..]`
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `[..]rmeta -L native=test`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn adding_an_override_invalidates() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(".cargo/config", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=native=foo");
}
"#,
)
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
[RUNNING] `rustc [..] -L native=foo`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
File::create(p.root().join(".cargo/config"))
.unwrap()
.write_all(
format!(
"
[target.{}.foo]
rustc-link-search = [\"native=bar\"]
",
target
)
.as_bytes(),
)
.unwrap();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] -L native=bar`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn changing_an_override_invalidates() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config",
&format!(
"
[target.{}.foo]
rustc-link-search = [\"native=foo\"]
",
target
),
)
.file("build.rs", "")
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] -L native=foo`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
File::create(p.root().join(".cargo/config"))
.unwrap()
.write_all(
format!(
"
[target.{}.foo]
rustc-link-search = [\"native=bar\"]
",
target
)
.as_bytes(),
)
.unwrap();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] -L native=bar`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn fresh_builds_possible_with_link_libs() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "nativefoo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config",
&format!(
"
[target.{}.nativefoo]
rustc-link-lib = [\"a\"]
rustc-link-search = [\"./b\"]
rustc-flags = \"-l z -L ./\"
",
target
),
)
.file("build.rs", "")
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
p.cargo("build -v")
.with_stderr(
"\
[FRESH] foo v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn fresh_builds_possible_with_multiple_metadata_overrides() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config",
&format!(
"
[target.{}.foo]
a = \"\"
b = \"\"
c = \"\"
d = \"\"
e = \"\"
",
target
),
)
.file("build.rs", "")
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
p.cargo("build -v")
.env("CARGO_LOG", "cargo::ops::cargo_rustc::fingerprint=info")
.with_stderr(
"\
[FRESH] foo v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn rebuild_only_on_explicit_paths() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rerun-if-changed=foo");
println!("cargo:rerun-if-changed=bar");
}
"#,
)
.build();
p.cargo("build -v").run();
println!("run without");
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `[..]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
sleep_ms(1000);
File::create(p.root().join("foo")).unwrap();
File::create(p.root().join("bar")).unwrap();
sleep_ms(1000);
println!("run with");
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `[..]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
println!("run with2");
p.cargo("build -v")
.with_stderr(
"\
[FRESH] foo v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
sleep_ms(1000);
println!("run baz");
File::create(p.root().join("baz")).unwrap();
p.cargo("build -v")
.with_stderr(
"\
[FRESH] foo v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
println!("run foo change");
File::create(p.root().join("foo")).unwrap();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `[..]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
println!("run foo delete");
fs::remove_file(p.root().join("bar")).unwrap();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `[..]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn doctest_receives_build_link_args() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=native=bar");
}
"#,
)
.build();
p.cargo("test -v")
.with_stderr_contains(
"[RUNNING] `rustdoc [..]--test [..] --crate-name foo [..]-L native=bar[..]`",
)
.run();
}
#[cargo_test]
fn please_respect_the_dag() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies]
a = { path = 'a' }
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=native=foo");
}
"#,
)
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=native=bar");
}
"#,
)
.build();
p.cargo("build -v")
.with_stderr_contains("[RUNNING] `rustc [..] -L native=foo -L native=bar[..]`")
.run();
}
#[cargo_test]
fn non_utf8_output() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
use std::io::prelude::*;
fn main() {
let mut out = std::io::stdout();
// print something that's not utf8
out.write_all(b"\xff\xff\n").unwrap();
// now print some cargo metadata that's utf8
println!("cargo:rustc-cfg=foo");
// now print more non-utf8
out.write_all(b"\xff\xff\n").unwrap();
}
"#,
)
.file("src/main.rs", "#[cfg(foo)] fn main() {}")
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn custom_target_dir() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
a = { path = "a" }
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config",
r#"
[build]
target-dir = 'test'
"#,
)
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn panic_abort_with_build_scripts() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[profile.release]
panic = 'abort'
[dependencies]
a = { path = "a" }
"#,
)
.file(
"src/lib.rs",
"#[allow(unused_extern_crates)] extern crate a;",
)
.file("build.rs", "fn main() {}")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies]
b = { path = "../b" }
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
"#[allow(unused_extern_crates)] extern crate b; fn main() {}",
)
.file(
"b/Cargo.toml",
r#"
[project]
name = "b"
version = "0.5.0"
authors = []
"#,
)
.file("b/src/lib.rs", "")
.build();
p.cargo("build -v --release").run();
p.root().join("target").rm_rf();
p.cargo("test --release -v")
.with_stderr_does_not_contain("[..]panic[..]")
.run();
}
#[cargo_test]
fn warnings_emitted() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:warning=foo");
println!("cargo:warning=bar");
}
"#,
)
.build();
p.cargo("build -v")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
warning: foo
warning: bar
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn warnings_emitted_when_build_script_panics() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:warning=foo");
println!("cargo:warning=bar");
panic!();
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stdout("")
.with_stderr_contains("warning: foo\nwarning: bar")
.run();
}
#[cargo_test]
fn warnings_hidden_for_upstream() {
Package::new("bar", "0.1.0")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:warning=foo");
println!("cargo:warning=bar");
}
"#,
)
.file(
"Cargo.toml",
r#"
[project]
name = "bar"
version = "0.1.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
bar = "*"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build -v")
.with_stderr(
"\
[UPDATING] `[..]` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 ([..])
[COMPILING] bar v0.1.0
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
[RUNNING] `rustc [..]`
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn warnings_printed_on_vv() {
Package::new("bar", "0.1.0")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:warning=foo");
println!("cargo:warning=bar");
}
"#,
)
.file(
"Cargo.toml",
r#"
[project]
name = "bar"
version = "0.1.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
bar = "*"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build -vv")
.with_stderr(
"\
[UPDATING] `[..]` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 ([..])
[COMPILING] bar v0.1.0
[RUNNING] `[..] rustc [..]`
[RUNNING] `[..]`
warning: foo
warning: bar
[RUNNING] `[..] rustc [..]`
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `[..] rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn output_shows_on_vv() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::io::prelude::*;
fn main() {
std::io::stderr().write_all(b"stderr\n").unwrap();
std::io::stdout().write_all(b"stdout\n").unwrap();
}
"#,
)
.build();
p.cargo("build -vv")
.with_stdout("[foo 0.5.0] stdout")
.with_stderr(
"\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `[..] rustc [..]`
[RUNNING] `[..]`
[foo 0.5.0] stderr
[RUNNING] `[..] rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
)
.run();
}
#[cargo_test]
fn links_with_dots() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
links = "a.b"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-link-search=bar")
}
"#,
)
.file(
".cargo/config",
&format!(
r#"
[target.{}.'a.b']
rustc-link-search = ["foo"]
"#,
target
),
)
.build();
p.cargo("build -v")
.with_stderr_contains("[RUNNING] `rustc --crate-name foo [..] [..] -L foo[..]`")
.run();
}
#[cargo_test]
fn rustc_and_rustdoc_set_correctly() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("RUSTC").unwrap(), "rustc");
assert_eq!(env::var("RUSTDOC").unwrap(), "rustdoc");
}
"#,
)
.build();
p.cargo("bench").run();
}
#[cargo_test]
fn cfg_env_vars_available() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
let fam = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
if cfg!(unix) {
assert_eq!(fam, "unix");
} else {
assert_eq!(fam, "windows");
}
}
"#,
)
.build();
p.cargo("bench").run();
}
#[cargo_test]
fn switch_features_rerun() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
[features]
foo = []
"#,
)
.file(
"src/main.rs",
r#"
fn main() {
println!(include_str!(concat!(env!("OUT_DIR"), "/output")));
}
"#,
)
.file(
"build.rs",
r#"
use std::env;
use std::fs::File;
use std::io::Write;
use std::path::Path;
fn main() {
let out_dir = env::var_os("OUT_DIR").unwrap();
let out_dir = Path::new(&out_dir).join("output");
let mut f = File::create(&out_dir).unwrap();
if env::var_os("CARGO_FEATURE_FOO").is_some() {
f.write_all(b"foo").unwrap();
} else {
f.write_all(b"bar").unwrap();
}
}
"#,
)
.build();
p.cargo("build -v --features=foo").run();
p.rename_run("foo", "with_foo").with_stdout("foo\n").run();
p.cargo("build -v").run();
p.rename_run("foo", "without_foo")
.with_stdout("bar\n")
.run();
p.cargo("build -v --features=foo").run();
p.rename_run("foo", "with_foo2").with_stdout("foo\n").run();
}
#[cargo_test]
fn assume_build_script_when_build_rs_present() {
let p = project()
.file(
"src/main.rs",
r#"
fn main() {
if ! cfg!(foo) {
panic!("the build script was not run");
}
}
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-cfg=foo");
}
"#,
)
.build();
p.cargo("run -v").run();
}
#[cargo_test]
fn if_build_set_to_false_dont_treat_build_rs_as_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = false
"#,
)
.file(
"src/main.rs",
r#"
fn main() {
if cfg!(foo) {
panic!("the build script was run");
}
}
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-cfg=foo");
}
"#,
)
.build();
p.cargo("run -v").run();
}
#[cargo_test]
fn deterministic_rustc_dependency_flags() {
Package::new("dep1", "0.1.0")
.file(
"Cargo.toml",
r#"
[project]
name = "dep1"
version = "0.1.0"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-flags=-L native=test1");
}
"#,
)
.file("src/lib.rs", "")
.publish();
Package::new("dep2", "0.1.0")
.file(
"Cargo.toml",
r#"
[project]
name = "dep2"
version = "0.1.0"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-flags=-L native=test2");
}
"#,
)
.file("src/lib.rs", "")
.publish();
Package::new("dep3", "0.1.0")
.file(
"Cargo.toml",
r#"
[project]
name = "dep3"
version = "0.1.0"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-flags=-L native=test3");
}
"#,
)
.file("src/lib.rs", "")
.publish();
Package::new("dep4", "0.1.0")
.file(
"Cargo.toml",
r#"
[project]
name = "dep4"
version = "0.1.0"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rustc-flags=-L native=test4");
}
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.1.0"
authors = []
[dependencies]
dep1 = "*"
dep2 = "*"
dep3 = "*"
dep4 = "*"
"#,
)
.file("src/main.rs", "fn main() {}")
.build();
p.cargo("build -v")
.with_stderr_contains(
"\
[RUNNING] `rustc --crate-name foo [..] -L native=test1 -L native=test2 \
-L native=test3 -L native=test4`
",
)
.run();
}
#[cargo_test]
fn links_duplicates_with_cycle() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
[dependencies.a]
path = "a"
[dev-dependencies]
b = { path = "b" }
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "")
.file(
"a/Cargo.toml",
r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file("a/build.rs", "")
.file(
"b/Cargo.toml",
r#"
[project]
name = "b"
version = "0.5.0"
authors = []
[dependencies]
foo = { path = ".." }
"#,
)
.file("b/src/lib.rs", "")
.build();
p.cargo("build").with_status(101)
.with_stderr("\
error: failed to select a version for `a`.
... required by package `foo v0.5.0 ([..])`
versions that meet the requirements `*` are: 0.5.0
the package `a` links to the native library `a`, but it conflicts with a previous package which links to `a` as well:
package `foo v0.5.0 ([..])`
failed to select a version for `a` which could resolve this conflict
").run();
}
#[cargo_test]
fn rename_with_link_search_path() {
_rename_with_link_search_path(false);
}
#[cargo_test]
#[cfg_attr(target_os = "macos", ignore)]
fn rename_with_link_search_path_cross() {
if cross_compile::disabled() {
return;
}
_rename_with_link_search_path(true);
}
fn _rename_with_link_search_path(cross: bool) {
let target_arg = if cross {
format!(" --target={}", cross_compile::alternate())
} else {
"".to_string()
};
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[lib]
crate-type = ["cdylib"]
"#,
)
.file(
"src/lib.rs",
"#[no_mangle] pub extern fn cargo_test_foo() {}",
);
let p = p.build();
p.cargo(&format!("build{}", target_arg)).run();
let p2 = project()
.at("bar")
.file("Cargo.toml", &basic_manifest("bar", "0.5.0"))
.file(
"build.rs",
r#"
use std::env;
use std::fs;
use std::path::PathBuf;
fn main() {
// Move the `libfoo.so` from the root of our project into the
// build directory. This way Cargo should automatically manage
// `LD_LIBRARY_PATH` and such.
let root = PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").unwrap());
let file = format!("{}foo{}", env::consts::DLL_PREFIX, env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let dst = dst_dir.join(&file);
fs::copy(&src, &dst).unwrap();
// handle windows, like below
drop(fs::copy(root.join("foo.dll.lib"), dst_dir.join("foo.dll.lib")));
println!("cargo:rerun-if-changed=build.rs");
if cfg!(target_env = "msvc") {
println!("cargo:rustc-link-lib=foo.dll");
} else {
println!("cargo:rustc-link-lib=foo");
}
println!("cargo:rustc-link-search=all={}",
dst.parent().unwrap().display());
}
"#,
)
.file(
"src/main.rs",
r#"
extern {
#[link_name = "cargo_test_foo"]
fn foo();
}
fn main() {
unsafe { foo(); }
}
"#,
);
let p2 = p2.build();
let root = if cross {
p.root()
.join("target")
.join(cross_compile::alternate())
.join("debug")
.join("deps")
} else {
p.root().join("target").join("debug").join("deps")
};
let file = format!("{}foo{}", env::consts::DLL_PREFIX, env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst = p2.root().join(&file);
fs::copy(&src, &dst).unwrap();
drop(fs::copy(
&root.join("foo.dll.lib"),
p2.root().join("foo.dll.lib"),
));
remove_dir_all(p.root()).unwrap();
p2.cargo(&format!("run{}", target_arg)).run();
let mut new = p2.root();
new.pop();
new.push("bar2");
let mut i = 0;
loop {
let error = match fs::rename(p2.root(), &new) {
Ok(()) => break,
Err(e) => e,
};
i += 1;
if !cfg!(windows) || error.kind() != io::ErrorKind::PermissionDenied || i > 10 {
panic!("failed to rename: {}", error);
}
println!("assuming {} is spurious, waiting to try again", error);
thread::sleep(slow_cpu_multiplier(100));
}
p2.cargo(&format!("run{}", target_arg))
.cwd(&new)
.with_stderr(
"\
[FINISHED] [..]
[RUNNING] [..]
",
)
.run();
}
#[cargo_test]
fn optional_build_script_dep() {
let p = project()
.file(
"Cargo.toml",
r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
bar = { path = "bar", optional = true }
[build-dependencies]
bar = { path = "bar", optional = true }
"#,
)
.file(
"build.rs",
r#"
#[cfg(feature = "bar")]
extern crate bar;
fn main() {
#[cfg(feature = "bar")] {
println!("cargo:rustc-env=FOO={}", bar::bar());
return
}
println!("cargo:rustc-env=FOO=0");
}
"#,
)
.file(
"src/main.rs",
r#"
#[cfg(feature = "bar")]
extern crate bar;
fn main() {
println!("{}", env!("FOO"));
}
"#,
)
.file("bar/Cargo.toml", &basic_manifest("bar", "0.5.0"))
.file("bar/src/lib.rs", "pub fn bar() -> u32 { 1 }");
let p = p.build();
p.cargo("run").with_stdout("0\n").run();
p.cargo("run --features bar").with_stdout("1\n").run();
}
#[cargo_test]
fn optional_build_dep_and_required_normal_dep() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
authors = []
[dependencies]
bar = { path = "./bar", optional = true }
[build-dependencies]
bar = { path = "./bar" }
"#,
)
.file("build.rs", "extern crate bar; fn main() { bar::bar(); }")
.file(
"src/main.rs",
r#"
#[cfg(feature = "bar")]
extern crate bar;
fn main() {
#[cfg(feature = "bar")] {
println!("{}", bar::bar());
}
#[cfg(not(feature = "bar"))] {
println!("0");
}
}
"#,
)
.file("bar/Cargo.toml", &basic_manifest("bar", "0.5.0"))
.file("bar/src/lib.rs", "pub fn bar() -> u32 { 1 }");
let p = p.build();
p.cargo("run")
.with_stdout("0")
.with_stderr(
"\
[COMPILING] bar v0.5.0 ([..])
[COMPILING] foo v0.1.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]foo[EXE]`",
)
.run();
p.cargo("run --all-features")
.with_stdout("1")
.with_stderr(
"\
[COMPILING] foo v0.1.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..]foo[EXE]`",
)
.run();
}
#[cargo_test]
fn using_rerun_if_changed_does_not_rebuild() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
authors = []
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rerun-if-changed=build.rs");
}
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build").run();
p.cargo("build").with_stderr("[FINISHED] [..]").run();
}
#[cargo_test]
fn links_interrupted_can_restart() {
let bar = project()
.at("bar")
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:rerun-if-env-changed=SOMEVAR");
}
"#,
)
.build();
let p = project()
.file(
"Cargo.toml",
&format!(
r#"
[package]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.bar]
path = '{}'
"#,
bar.root().display()
),
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
println!("cargo:rebuild-if-changed=build.rs");
if std::path::Path::new("abort").exists() {
panic!("Crash!");
}
}
"#,
)
.build();
p.cargo("build").run();
p.change_file("abort", "");
p.cargo("build")
.env("SOMEVAR", "1")
.with_stderr_contains("[..]Crash![..]")
.with_status(101)
.run();
fs::remove_file(p.root().join("abort")).unwrap();
p.cargo("build -v")
.env("SOMEVAR", "1")
.with_stderr_contains("[RUNNING] [..]/foo-[..]/build-script-build[..]")
.run();
}
#[cargo_test]
#[cfg(unix)]
fn build_script_scan_eacces() {
use std::os::unix::fs::PermissionsExt;
let p = project()
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file("secrets/stuff", "")
.build();
let path = p.root().join("secrets");
fs::set_permissions(&path, fs::Permissions::from_mode(0)).unwrap();
p.cargo("build")
.with_stderr(
"\
[ERROR] cannot read \"[..]/foo/secrets\"
Caused by:
[..]
",
)
.with_status(101)
.run();
fs::set_permissions(&path, fs::Permissions::from_mode(0o755)).unwrap();
}