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Remove root from cargo lock #4571

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merged 7 commits into from
Oct 4, 2017
Merged

Remove root from cargo lock #4571

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850fbdc
Removed extraneous logic that generates [root] in cargo.lock
raytung Oct 3, 2017
008a126
Updated appropriate docs referencing [root]
raytung Oct 3, 2017
6f03cce
Removed root related flags
raytung Oct 3, 2017
f5fbf73
Updated test to ensure cargo update transforms Cargo.lock
raytung Oct 3, 2017
f5961e6
Revert "Removed root related flags"
raytung Oct 3, 2017
639bfb5
Removed root related flags
raytung Oct 3, 2017
cab464e
Updated old lockfile tests
raytung Oct 3, 2017
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18 changes: 1 addition & 17 deletions src/cargo/ops/lockfile.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -40,30 +40,14 @@ pub fn write_pkg_lockfile(ws: &Workspace, resolve: &Resolve) -> CargoResult<()>
Ok(s)
});

// Forward compatibility: if `orig` uses rootless format
// from the future, do the same.
let use_root_key = if let Ok(ref orig) = orig {
!orig.starts_with("[[package]]")
} else {
true
};

let toml = toml::Value::try_from(WorkspaceResolve {
ws: ws,
resolve: resolve,
use_root_key: use_root_key,
use_root_key: false,
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I think this field can be removed now as well?

}).unwrap();

let mut out = String::new();

// Note that we do not use e.toml.to_string() as we want to control the
// exact format the toml is in to ensure pretty diffs between updates to the
// lockfile.
if let Some(root) = toml.get("root") {
out.push_str("[root]\n");
emit_package(root.as_table().unwrap(), &mut out);
}

let deps = toml["package"].as_array().unwrap();
for dep in deps.iter() {
let dep = dep.as_table().unwrap();
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2 changes: 1 addition & 1 deletion src/doc/book/src/guide/cargo-toml-vs-cargo-lock.md
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Expand Up @@ -71,7 +71,7 @@ Cargo will take the latest commit and write that information out into our
`Cargo.lock` when we build for the first time. That file will look like this:

```toml
[root]
[[package]]
name = "hello_world"
version = "0.1.0"
dependencies = [
Expand Down
2 changes: 1 addition & 1 deletion src/doc/guide.md
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Expand Up @@ -328,7 +328,7 @@ Cargo will take the latest commit and write that information out into our
`Cargo.lock` when we build for the first time. That file will look like this:

```toml
[root]
[[package]]
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Excellent catch! I haven't thought of the docs at all!

name = "hello_world"
version = "0.1.0"
dependencies = [
Expand Down
6 changes: 3 additions & 3 deletions tests/bad-config.rs
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Expand Up @@ -256,7 +256,7 @@ fn duplicate_packages_in_cargo_lock() {
"#)
.file("src/lib.rs", "")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
Expand Down Expand Up @@ -300,7 +300,7 @@ fn bad_source_in_cargo_lock() {
"#)
.file("src/lib.rs", "")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
Expand Down Expand Up @@ -334,7 +334,7 @@ fn bad_dependency_in_lockfile() {
"#)
.file("src/lib.rs", "")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "foo"
version = "0.0.1"
dependencies = [
Expand Down
4 changes: 2 additions & 2 deletions tests/generate-lockfile.rs
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Expand Up @@ -145,7 +145,7 @@ fn preserve_line_endings_issue_2076() {

let lock0 = p.read_lockfile();

assert!(lock0.starts_with("[root]\n"));
assert!(lock0.starts_with("[[package]]\n"));

let lock1 = lock0.replace("\n", "\r\n");
{
Expand All @@ -157,7 +157,7 @@ fn preserve_line_endings_issue_2076() {

let lock2 = p.read_lockfile();

assert!(lock2.starts_with("[root]\r\n"));
assert!(lock2.starts_with("[[package]]\r\n"));
assert_eq!(lock1, lock2);
}

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2 changes: 1 addition & 1 deletion tests/git.rs
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Expand Up @@ -971,7 +971,7 @@ fn stale_cached_version() {
let rev = repo.revparse_single("HEAD").unwrap().id();

File::create(&foo.root().join("Cargo.lock")).unwrap().write_all(format!(r#"
[root]
[[package]]
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Is it true that changes in tests are mostly cosmetics? That is, the tests pass with [root] as well as with [[package]]?

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Looks like it. I made the same change against master branch and the test passes without a hitch

name = "foo"
version = "0.0.0"
dependencies = [
Expand Down
2 changes: 1 addition & 1 deletion tests/install.rs
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Expand Up @@ -829,7 +829,7 @@ fn git_with_lockfile() {
"#)
.file("bar/src/lib.rs", "fn main() {}")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "foo"
version = "0.1.0"
dependencies = [ "bar 0.1.0" ]
Expand Down
35 changes: 28 additions & 7 deletions tests/lockfile-compat.rs
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Expand Up @@ -10,6 +10,23 @@ use hamcrest::assert_that;
fn oldest_lockfile_still_works() {
Package::new("foo", "0.1.0").publish();

let expected_lock_file =
r#"[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
"foo 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "foo"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"

[metadata]
"checksum foo 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "[..]"
"#;

let lockfile = r#"
[root]
name = "bar"
Expand Down Expand Up @@ -42,7 +59,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
execs().with_status(0));

let lock = p.read_lockfile();
assert!(lock.starts_with(lockfile.trim()));
for (l, r) in expected_lock_file.lines().zip(lock.lines()) {
assert!(lines_match(l, r), "Lines differ:\n{}\n\n{}", l, r);
}

assert_eq!(lock.lines().count(), expected_lock_file.lines().count());
}

#[test]
Expand All @@ -61,7 +82,7 @@ fn totally_wild_checksums_works() {
"#)
.file("src/lib.rs", "")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
Expand All @@ -85,7 +106,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

let lock = p.read_lockfile();
assert!(lock.starts_with(r#"
[root]
[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
Expand Down Expand Up @@ -117,7 +138,7 @@ fn wrong_checksum_is_an_error() {
"#)
.file("src/lib.rs", "")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
Expand Down Expand Up @@ -170,7 +191,7 @@ fn unlisted_checksum_is_bad_if_we_calculate() {
"#)
.file("src/lib.rs", "")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
Expand Down Expand Up @@ -230,7 +251,7 @@ fn listed_checksum_bad_if_we_cannot_compute() {
"#, git.url()))
.file("src/lib.rs", "")
.file("Cargo.lock", &format!(r#"
[root]
[[package]]
name = "bar"
version = "0.0.1"
dependencies = [
Expand Down Expand Up @@ -287,7 +308,7 @@ fn current_lockfile_format() {
let actual = p.read_lockfile();

let expected = "\
[root]
[[package]]
name = \"bar\"
version = \"0.0.1\"
dependencies = [
Expand Down
2 changes: 1 addition & 1 deletion tests/overrides.rs
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Expand Up @@ -802,7 +802,7 @@ fn override_an_override() {
"serde:0.8.0" = { path = "serde" }
"#)
.file("Cargo.lock", r#"
[root]
[[package]]
name = "local"
version = "0.0.1"
dependencies = [
Expand Down
2 changes: 1 addition & 1 deletion tests/workspaces.rs
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Expand Up @@ -961,7 +961,7 @@ fn lockfile_can_specify_nonexistant_members() {
"#)
.file("a/src/main.rs", "fn main() {}")
.file("Cargo.lock", r#"
[root]
[[package]]
name = "a"
version = "0.1.0"

Expand Down