Merge pull request #142699 from steveeJ-forks/fix-import-cargo-lock

rust: find nested packages in git repositories

6 files changed, 701 insertions, 9 deletions

diff --git a/pkgs/build-support/rust/import-cargo-lock.nix b/pkgs/build-support/rust/import-cargo-lock.nix
index fe070e9638d..fd3608741ea 100644
--- a/pkgs/build-support/rust/import-cargo-lock.nix
+++ b/pkgs/build-support/rust/import-cargo-lock.nix
@@ -125,20 +125,31 @@ let
         };
       in runCommand "${pkg.name}-${pkg.version}" {} ''
         tree=${tree}
-        if grep --quiet '\[workspace\]' "$tree/Cargo.toml"; then
-          # If the target package is in a workspace, find the crate path
-          # using `cargo metadata`.
-          crateCargoTOML=$(${cargo}/bin/cargo metadata --format-version 1 --no-deps --manifest-path $tree/Cargo.toml | \
-            ${jq}/bin/jq -r '.packages[] | select(.name == "${pkg.name}") | .manifest_path')
 
+        # If the target package is in a workspace, or if it's the top-level
+        # crate, we should find the crate path using `cargo metadata`.
+        crateCargoTOML=$(${cargo}/bin/cargo metadata --format-version 1 --no-deps --manifest-path $tree/Cargo.toml | \
+          ${jq}/bin/jq -r '.packages[] | select(.name == "${pkg.name}") | .manifest_path')
+
+        # If the repository is not a workspace the package might be in a subdirectory.
+        if [[ -z $crateCargoTOML ]]; then
+          for manifest in $(find $tree -name "Cargo.toml"); do
+            echo Looking at $manifest
+            crateCargoTOML=$(${cargo}/bin/cargo metadata --format-version 1 --no-deps --manifest-path "$manifest" | ${jq}/bin/jq -r '.packages[] | select(.name == "${pkg.name}") | .manifest_path' || :)
             if [[ ! -z $crateCargoTOML ]]; then
-              tree=$(dirname $crateCargoTOML)
-            else
-              >&2 echo "Cannot find path for crate '${pkg.name}-${pkg.version}' in the Cargo workspace in: $tree"
-              exit 1
+              break
             fi
+          done
+
+          if [[ -z $crateCargoTOML ]]; then
+            >&2 echo "Cannot find path for crate '${pkg.name}-${pkg.version}' in the tree in: $tree"
+            exit 1
+          fi
         fi
 
+        echo Found crate ${pkg.name} at $crateCargoTOML
+        tree=$(dirname $crateCargoTOML)
+
         cp -prvd "$tree/" $out
         chmod u+w $out
 
diff --git a/pkgs/build-support/rust/test/import-cargo-lock/default.nix b/pkgs/build-support/rust/test/import-cargo-lock/default.nix
index 24e07099c05..c5c7b2f1c93 100644
--- a/pkgs/build-support/rust/test/import-cargo-lock/default.nix
+++ b/pkgs/build-support/rust/test/import-cargo-lock/default.nix
@@ -7,6 +7,7 @@
   basicDynamic = callPackage ./basic-dynamic { };
   gitDependency = callPackage ./git-dependency { };
   gitDependencyRev = callPackage ./git-dependency-rev { };
+  gitDependencyRevNonWorkspaceNestedCrate = callPackage ./git-dependency-rev-non-workspace-nested-crate { };
   gitDependencyTag = callPackage ./git-dependency-tag { };
   gitDependencyBranch = callPackage ./git-dependency-branch { };
   maturin = callPackage ./maturin { };
diff --git a/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/Cargo.lock b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/Cargo.lock
new file mode 100644
index 00000000000..63ff1b3c113
--- /dev/null
+++ b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/Cargo.lock
@@ -0,0 +1,638 @@
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+ "libc",
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+ "winapi",
+]
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diff --git a/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/Cargo.toml b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/Cargo.toml
new file mode 100644
index 00000000000..61f1a08dbe4
--- /dev/null
+++ b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "git-dependency-rev-non-workspace-nested-crate"
+version = "0.1.0"
+authors = ["Stefan Junker <mail@stefanjunker.de>"]
+edition = "2018"
+
+[dependencies]
+cargo-test-support = { git = "https://github.com/rust-lang/cargo", branch = "rust-1.53.0" }
diff --git a/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/default.nix b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/default.nix
new file mode 100644
index 00000000000..dcf1e601c31
--- /dev/null
+++ b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/default.nix
@@ -0,0 +1,31 @@
+{ rustPlatform, pkg-config, openssl, lib, darwin, stdenv }:
+
+rustPlatform.buildRustPackage {
+  pname = "git-dependency-rev-non-workspace-nested-crate";
+  version = "0.1.0";
+
+  src = ./.;
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    openssl
+  ] ++ lib.optionals stdenv.isDarwin [
+    darwin.apple_sdk.frameworks.Security
+  ];
+
+  cargoLock = {
+    lockFile = ./Cargo.lock;
+    outputHashes = {
+      "cargo-test-macro-0.1.0" = "1yy1y1d523xdzwg1gc77pigbcwsbawmy4b7vw8v21m7q957sk0c4";
+    };
+  };
+
+  doInstallCheck = true;
+
+  installCheckPhase = ''
+    $out/bin/git-dependency-rev-non-workspace-nested-crate
+  '';
+}
diff --git a/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/src/main.rs b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/src/main.rs
new file mode 100644
index 00000000000..cb4bfb5d928
--- /dev/null
+++ b/pkgs/build-support/rust/test/import-cargo-lock/git-dependency-rev-non-workspace-nested-crate/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("{}", cargo_test_support::t!(Result::<&str, &str>::Ok("msg")));
+}