feat(fix): Migrate inherited deps with ignored default-features

crates/cargo-util-schemas/src/manifest/mod.rs

@@ -683,6 +683,13 @@ impl TomlDependency {
         }
     }
 
+    pub fn default_features(&self) -> Option<bool> {
+        match self {
+            TomlDependency::Detailed(d) => d.default_features(),
+            TomlDependency::Simple(..) => None,
+        }
+    }
+
     pub fn unused_keys(&self) -> Vec<String> {
         match self {
             TomlDependency::Simple(_) => vec![],

src/cargo/ops/fix.rs

@@ -45,6 +45,7 @@ use std::{env, fs, str};
 
 use anyhow::{bail, Context as _};
 use cargo_util::{exit_status_to_string, is_simple_exit_code, paths, ProcessBuilder};
+use cargo_util_schemas::manifest::TomlManifest;
 use rustfix::diagnostics::Diagnostic;
 use rustfix::CodeFix;
 use semver::Version;
@@ -265,6 +266,10 @@ fn migrate_manifests(ws: &Workspace<'_>, pkgs: &[&Package]) -> CargoResult<()> {
             format!("{file} from {existing_edition} edition to {prepare_for_edition}"),
         )?;
 
+        let ws_original_toml = match ws.root_maybe() {
+            MaybePackage::Package(package) => package.manifest().original_toml(),
+            MaybePackage::Virtual(manifest) => manifest.original_toml(),
+        };
         if Edition::Edition2024 <= prepare_for_edition {
             let mut document = pkg.manifest().document().clone().into_mut();
             let mut fixes = 0;
@@ -290,10 +295,15 @@ fn migrate_manifests(ws: &Workspace<'_>, pkgs: &[&Package]) -> CargoResult<()> {
             fixes += rename_array_of_target_fields_2024(root, "test");
             fixes += rename_array_of_target_fields_2024(root, "bench");
             fixes += rename_dep_fields_2024(root, "dependencies");
+            fixes += remove_ignored_default_features_2024(root, "dependencies", ws_original_toml);
             fixes += rename_table(root, "dev_dependencies", "dev-dependencies");
             fixes += rename_dep_fields_2024(root, "dev-dependencies");
+            fixes +=
+                remove_ignored_default_features_2024(root, "dev-dependencies", ws_original_toml);
             fixes += rename_table(root, "build_dependencies", "build-dependencies");
             fixes += rename_dep_fields_2024(root, "build-dependencies");
+            fixes +=
+                remove_ignored_default_features_2024(root, "build-dependencies", ws_original_toml);
             for target in root
                 .get_mut("target")
                 .and_then(|t| t.as_table_like_mut())
@@ -302,10 +312,22 @@ fn migrate_manifests(ws: &Workspace<'_>, pkgs: &[&Package]) -> CargoResult<()> {
                 .filter_map(|(_k, t)| t.as_table_like_mut())
             {
                 fixes += rename_dep_fields_2024(target, "dependencies");
+                fixes +=
+                    remove_ignored_default_features_2024(target, "dependencies", ws_original_toml);
                 fixes += rename_table(target, "dev_dependencies", "dev-dependencies");
                 fixes += rename_dep_fields_2024(target, "dev-dependencies");
+                fixes += remove_ignored_default_features_2024(
+                    target,
+                    "dev-dependencies",
+                    ws_original_toml,
+                );
                 fixes += rename_table(target, "build_dependencies", "build-dependencies");
                 fixes += rename_dep_fields_2024(target, "build-dependencies");
+                fixes += remove_ignored_default_features_2024(
+                    target,
+                    "build-dependencies",
+                    ws_original_toml,
+                );
             }
 
             if 0 < fixes {
@@ -337,6 +359,47 @@ fn rename_dep_fields_2024(parent: &mut dyn toml_edit::TableLike, dep_kind: &str)
     fixes
 }
 
+fn remove_ignored_default_features_2024(
+    parent: &mut dyn toml_edit::TableLike,
+    dep_kind: &str,
+    ws_original_toml: &TomlManifest,
+) -> usize {
+    let mut fixes = 0;
+    for (name_in_toml, target) in parent
+        .get_mut(dep_kind)
+        .and_then(|t| t.as_table_like_mut())
+        .iter_mut()
+        .flat_map(|t| t.iter_mut())
+        .filter_map(|(k, t)| t.as_table_like_mut().map(|t| (k, t)))
+    {
+        let name_in_toml: &str = &name_in_toml;
+        let ws_deps = ws_original_toml
+            .workspace
+            .as_ref()
+            .and_then(|ws| ws.dependencies.as_ref());
+        if let Some(ws_dep) = ws_deps.and_then(|ws_deps| ws_deps.get(name_in_toml)) {
+            if ws_dep.default_features() == Some(false) {
+                continue;
+            }
+        }
+        if target
+            .get("workspace")
+            .and_then(|i| i.as_value())
+            .and_then(|i| i.as_bool())
+            == Some(true)
+            && target
+                .get("default-features")
+                .and_then(|i| i.as_value())
+                .and_then(|i| i.as_bool())
+                == Some(false)
+        {
+            target.remove("default-features");
+            fixes += 1;
+        }
+    }
+    fixes
+}
+
 fn rename_array_of_target_fields_2024(root: &mut dyn toml_edit::TableLike, kind: &str) -> usize {
     let mut fixes = 0;
     for target in root

tests/testsuite/fix.rs

@@ -2753,12 +2753,7 @@ dep_df_false = { version = "0.1.0", default-features = false }
 [MIGRATING] pkg_default/Cargo.toml from 2021 edition to 2024
 [MIGRATING] pkg_df_true/Cargo.toml from 2021 edition to 2024
 [MIGRATING] pkg_df_false/Cargo.toml from 2021 edition to 2024
-[WARNING] [CWD]/pkg_df_false/Cargo.toml: `default-features` is ignored for dep_df_true, since `default-features` was true for `workspace.dependencies.dep_df_true`, this could become a hard error in the future
-[WARNING] [CWD]/pkg_df_false/Cargo.toml: `default-features` is ignored for dep_simple, since `default-features` was not specified for `workspace.dependencies.dep_simple`, this could become a hard error in the future
-[WARNING] [CWD]/pkg_df_false/Cargo.toml: `default-features` is ignored for dep_df_true, since `default-features` was true for `workspace.dependencies.dep_df_true`, this could become a hard error in the future
-[WARNING] [CWD]/pkg_df_false/Cargo.toml: `default-features` is ignored for dep_simple, since `default-features` was not specified for `workspace.dependencies.dep_simple`, this could become a hard error in the future
-[WARNING] [CWD]/pkg_df_false/Cargo.toml: `default-features` is ignored for dep_df_true, since `default-features` was true for `workspace.dependencies.dep_df_true`, this could become a hard error in the future
-[WARNING] [CWD]/pkg_df_false/Cargo.toml: `default-features` is ignored for dep_simple, since `default-features` was not specified for `workspace.dependencies.dep_simple`, this could become a hard error in the future
+[FIXED] pkg_df_false/Cargo.toml (6 fixes)
 [UPDATING] `dummy-registry` index
 [LOCKING] 6 packages to latest compatible versions
 [DOWNLOADING] crates ...
@@ -2790,18 +2785,18 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-dep_simple = { workspace = true, default-features = false }
-dep_df_true = { workspace = true, default-features = false }
+dep_simple = { workspace = true}
+dep_df_true = { workspace = true}
 dep_df_false = { workspace = true, default-features = false }
 
 [build-dependencies]
-dep_simple = { workspace = true, default-features = false }
-dep_df_true = { workspace = true, default-features = false }
+dep_simple = { workspace = true}
+dep_df_true = { workspace = true}
 dep_df_false = { workspace = true, default-features = false }
 
 [target.'cfg(target_os = "linux")'.dependencies]
-dep_simple = { workspace = true, default-features = false }
-dep_df_true = { workspace = true, default-features = false }
+dep_simple = { workspace = true}
+dep_df_true = { workspace = true}
 dep_df_false = { workspace = true, default-features = false }
 "#
     );