Add version requirement format option to cargo tree

Also update unit tests with test cases for normal and inverted
output.

Signed-off-by: Alexandre Barone <[email protected]>

Author: devodev

src/cargo/ops/tree/format/mod.rs

@@ -16,6 +16,7 @@ enum Chunk {
     Repository,
     Features,
     LibName,
+    VersionRequirement,
 }
 
 pub struct Pattern(Vec<Chunk>);
@@ -32,6 +33,7 @@ impl Pattern {
                 RawChunk::Argument("r") => Chunk::Repository,
                 RawChunk::Argument("f") => Chunk::Features,
                 RawChunk::Argument("lib") => Chunk::LibName,
+                RawChunk::Argument("vr") => Chunk::VersionRequirement,
                 RawChunk::Argument(a) => {
                     bail!("unsupported pattern `{}`", a);
                 }
@@ -65,6 +67,7 @@ impl<'a> fmt::Display for Display<'a> {
             Node::Package(NodePackage {
                 package_id,
                 features,
+                version_req,
                 ..
             }) => {
                 let package = self.graph.package_for_id(*package_id);
@@ -113,6 +116,9 @@ impl<'a> fmt::Display for Display<'a> {
                                 write!(fmt, "{}", target.crate_name())?;
                             }
                         }
+                        Chunk::VersionRequirement => {
+                            write!(fmt, "{}", version_req)?;
+                        }
                     }
                 }
             }

tests/testsuite/cargo_tree/deps.rs

@@ -1246,25 +1246,25 @@ foo v0.1.0 ([ROOT]/foo) [bar,default,dep_that_is_awesome,foo,other-dep]
         .run();
 
     p.cargo("tree --all-features")
-        .arg("--format={p}")
+        .arg("--format={p} satisfies {vr}")
         .with_stdout_data(str![[r#"
-foo v0.1.0 ([ROOT]/foo)
-├── dep v1.0.0
-├── dep_that_is_awesome v1.0.0
-└── other-dep v1.0.0
-    └── dep v1.0.0
+foo v0.1.0 ([ROOT]/foo) satisfies *
+├── dep v1.0.0 satisfies =1.0
+├── dep_that_is_awesome v1.0.0 satisfies >=1.0, <2
+└── other-dep v1.0.0 satisfies ^1.0
+    └── dep v1.0.0 satisfies =1.0
 
 "#]])
         .run();
 
     p.cargo("tree --all-features")
-        .arg("--format={p}")
+        .arg("--format={p} satisfies {vr}")
         .arg("--invert=dep")
         .with_stdout_data(str![[r#"
-dep v1.0.0
-├── foo v0.1.0 ([ROOT]/foo)
-└── other-dep v1.0.0
-    └── foo v0.1.0 ([ROOT]/foo)
+dep v1.0.0 satisfies =1.0
+├── foo v0.1.0 ([ROOT]/foo) satisfies *
+└── other-dep v1.0.0 satisfies ^1.0
+    └── foo v0.1.0 ([ROOT]/foo) satisfies *
 
 "#]])
         .run();