gnu: Add rust-git2-0.19.

* gnu/packages/crates-vcs.scm (rust-git2-0.19): New variable.
(rust-git2-0.18): Inherit from rust-git2-0.19.

Change-Id: I4d468ab7a5fb52e6c6d683474c3b543d9d32da11

gnu/packages/crates-vcs.scm

@@ -213,8 +213,44 @@ dirty state into your program.")
      "This is an internal macro crate for git-version.")
     (license license:bsd-2)))
 
+(define-public rust-git2-0.19
+  (package
+    (name "rust-git2")
+    (version "0.19.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "git2" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "091pv7866z1qjq800ys0wjv8n73wrv7fqdrddxcnq36w8lzbf0xr"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-test-flags (list "--release" "--"
+                                "--skip=cred::test::credential_helper5")
+       #:cargo-inputs (("rust-bitflags" ,rust-bitflags-2)
+                       ("rust-libc" ,rust-libc-0.2)
+                       ("rust-libgit2-sys" ,rust-libgit2-sys-0.17)
+                       ("rust-log" ,rust-log-0.4)
+                       ("rust-openssl-probe" ,rust-openssl-probe-0.1)
+                       ("rust-openssl-sys" ,rust-openssl-sys-0.9)
+                       ("rust-url" ,rust-url-2))
+       #:cargo-development-inputs (("rust-clap" ,rust-clap-4)
+                                   ("rust-tempfile" ,rust-tempfile-3)
+                                   ("rust-time" ,rust-time-0.1))))
+    (native-inputs (list pkg-config))
+    (inputs (list libgit2-1.8 libssh2 openssl zlib))
+    (home-page "https://github.com/rust-lang/git2-rs")
+    (synopsis "Rust bindings to libgit2")
+    (description
+     "This package provides bindings to libgit2 for interoperating with git
+repositories.  This library is both threadsafe and memory safe and allows both
+reading and writing git repositories.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-git2-0.18
   (package
+    (inherit rust-git2-0.19)
     (name "rust-git2")
     (version "0.18.3")
     (source
@@ -224,7 +260,6 @@ dirty state into your program.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32 "0w7gcq6v9kdlh0vcv27xrk09c1bhkarqhnp52pvnnximzrxnlbi3"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:cargo-test-flags (list "--release" "--"
                                 "--skip=cred::test::credential_helper5")
@@ -239,14 +274,7 @@ dirty state into your program.")
                                    ("rust-tempfile" ,rust-tempfile-3)
                                    ("rust-time" ,rust-time-0.1))))
     (native-inputs (list pkg-config))
-    (inputs (list libgit2-1.7 libssh2 openssl zlib))
+    (inputs (list libgit2-1.7 libssh2 openssl zlib))))
-    (home-page "https://github.com/rust-lang/git2-rs")
-    (synopsis "Rust bindings to libgit2")
-    (description
-     "This package provides bindings to libgit2 for interoperating with git
-repositories.  This library is both threadsafe and memory safe and allows both
-reading and writing git repositories.")
-    (license (list license:expat license:asl2.0))))
 
 (define-public rust-git2-0.17
   (package