Auto merge of #12799 - marchiore:warn_add_package_name, r=epage

feat: add package name and version to warning messages

### What does this PR try to resolve?

Hi, this PR Fixes #8018, where i add the package name and version on warning messages.
As this is my first contribution to the project, if anything is not in compliance in the PR let me know and I will be happy to correct it.

Author: bors

src/cargo/core/compiler/job_queue/mod.rs

@@ -952,7 +952,10 @@ impl<'cfg> DrainState<'cfg> {
                 }
 
                 for warning in output.warnings.iter() {
-                    bcx.config.shell().warn(warning)?;
+                    let warning_with_package =
+                        format!("{}@{}: {}", unit.pkg.name(), unit.pkg.version(), warning);
+
+                    bcx.config.shell().warn(warning_with_package)?;
                 }
 
                 if msg.is_some() {

tests/testsuite/build_script.rs

@@ -3778,8 +3778,8 @@ fn warnings_emitted() {
 [COMPILING] foo v0.5.0 ([..])
 [RUNNING] `rustc [..]`
 [RUNNING] `[..]`
-warning: foo
-warning: bar
+warning: foo@0.5.0: foo
+warning: [email protected]: bar
 [RUNNING] `rustc [..]`
 [FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
 ",
@@ -3816,7 +3816,7 @@ fn warnings_emitted_when_build_script_panics() {
     p.cargo("build")
         .with_status(101)
         .with_stdout("")
-        .with_stderr_contains("warning: foo\nwarning: bar")
+        .with_stderr_contains("warning: foo@0.5.0: foo\nwarning: [email protected]: bar")
         .run();
 }
 
@@ -3929,8 +3929,8 @@ fn warnings_printed_on_vv() {
 [COMPILING] bar v0.1.0
 [RUNNING] `[..] rustc [..]`
 [RUNNING] `[..]`
-warning: foo
-warning: bar
+warning: [email protected]: foo
+warning: bar@0.1.0: bar
 [RUNNING] `[..] rustc [..]`
 [COMPILING] foo v0.5.0 ([..])
 [RUNNING] `[..] rustc [..]`

tests/testsuite/build_script_env.rs

@@ -137,12 +137,12 @@ fn rustc_bootstrap() {
         // NOTE: uses RUSTC_BOOTSTRAP so it will be propagated to rustc
         // (this matters when tests are being run with a beta or stable cargo)
         .env("RUSTC_BOOTSTRAP", "1")
-        .with_stderr_contains("warning: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
+        .with_stderr_contains("warning: [email protected]: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
         .run();
     // RUSTC_BOOTSTRAP set to the name of the library should warn
     p.cargo("check")
         .env("RUSTC_BOOTSTRAP", "has_dashes")
-        .with_stderr_contains("warning: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
+        .with_stderr_contains("warning: [email protected]: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
         .run();
     // RUSTC_BOOTSTRAP set to some random value should error
     p.cargo("check")
@@ -169,7 +169,7 @@ fn rustc_bootstrap() {
         // NOTE: uses RUSTC_BOOTSTRAP so it will be propagated to rustc
         // (this matters when tests are being run with a beta or stable cargo)
         .env("RUSTC_BOOTSTRAP", "1")
-        .with_stderr_contains("warning: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
+        .with_stderr_contains("warning: [email protected]: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
         .run();
     // RUSTC_BOOTSTRAP conditionally set when there's no library should error (regardless of the value)
     p.cargo("check")

tests/testsuite/build_script_extra_link_arg.rs

@@ -204,7 +204,7 @@ fn cdylib_link_arg_transitive() {
 [COMPILING] bar v1.0.0 [..]
 [RUNNING] `rustc --crate-name build_script_build bar/build.rs [..]
 [RUNNING] `[..]build-script-build[..]
-warning: cargo:rustc-link-arg-cdylib was specified in the build script of bar v1.0.0 \
+warning: [email protected]: cargo:rustc-link-arg-cdylib was specified in the build script of bar v1.0.0 \
 ([ROOT]/foo/bar), but that package does not contain a cdylib target
 
 Allowing this was an unintended change in the 1.50 release, and may become an error in \

tests/testsuite/features2.rs

@@ -1807,7 +1807,7 @@ fn shared_dep_same_but_dependencies() {
 [COMPILING] dep [..]
 [COMPILING] bin2 [..]
 [COMPILING] bin1 [..]
-warning: feat: enabled
+warning: [email protected]: feat: enabled
 [FINISHED] [..]
 ",
         )
@@ -1823,7 +1823,7 @@ warning: feat: enabled
 [FRESH] subdep [..]
 [FRESH] dep [..]
 [FRESH] bin1 [..]
-warning: feat: enabled
+warning: [email protected]: feat: enabled
 [FRESH] bin2 [..]
 [FINISHED] [..]
 ",

tests/testsuite/warn_on_failure.rs

@@ -105,7 +105,7 @@ fn warning_on_lib_failure() {
         .with_stderr_contains("[UPDATING] `[..]` index")
         .with_stderr_contains("[DOWNLOADED] bar v0.0.1 ([..])")
         .with_stderr_contains("[COMPILING] bar v0.0.1")
-        .with_stderr_contains(&format!("[WARNING] {}", WARNING1))
-        .with_stderr_contains(&format!("[WARNING] {}", WARNING2))
+        .with_stderr_contains(&format!("[WARNING] [email protected]: {}", WARNING1))
+        .with_stderr_contains(&format!("[WARNING] [email protected]: {}", WARNING2))
         .run();
 }