Print the changelog when updating

Cargo.lock

@@ -1094,7 +1094,7 @@ dependencies = [
 [[package]]
 name = "self_update"
 version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/r-darwish/self_update?branch=github-extended#e0408201c5ad575a6a4b70e49882a0a5f6a213d6"
 dependencies = [
  "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1496,7 +1496,7 @@ dependencies = [
  "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "self_update 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "self_update 0.5.0 (git+https://github.com/r-darwish/self_update?branch=github-extended)",
  "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "shellexpand 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1839,7 +1839,7 @@ dependencies = [
 "checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27"
 "checksum security-framework 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "697d3f3c23a618272ead9e1fb259c1411102b31c6af8b93f1d64cca9c3b0e8e0"
 "checksum security-framework-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ab01dfbe5756785b5b4d46e0289e5a18071dfa9a7c2b24213ea00b9ef9b665bf"
-"checksum self_update 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4a91301ec87d3925a64c06f667a2f244cf4edb7bd512b1e0aa72abc1963141e3"
+"checksum self_update 0.5.0 (git+https://github.com/r-darwish/self_update?branch=github-extended)" = "<none>"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)" = "6fa52f19aee12441d5ad11c9a00459122bd8f98707cadf9778c540674f1935b6"

Cargo.toml

@@ -31,6 +31,9 @@ nix = "0.12.0"
 [profile.release]
 lto = true
 
+[patch.crates-io]
+self_update = { git = "https://github.com/r-darwish/self_update", branch = "github-extended" }
+
 [features]
 default = []
 

src/main.rs

@@ -76,6 +76,9 @@ fn run() -> Result<(), Error> {
         if !opt.dry_run {
             if let Err(e) = self_update::self_update() {
                 print_warning(format!("Self update error: {}", e));
+                if let Some(cause) = e.cause() {
+                    print_warning(format!("Caused by: {}", cause));
+                }
             }
         }
     }

src/self_update.rs

@@ -2,6 +2,7 @@ use super::error::{Error, ErrorKind};
 use super::terminal::*;
 use failure::ResultExt;
 use self_update_crate;
+use self_update_crate::backends::github::{GitHubUpdateStatus, Update};
 #[cfg(unix)]
 use std::env;
 #[cfg(unix)]
@@ -15,7 +16,7 @@ pub fn self_update() -> Result<(), Error> {
     let current_exe = env::current_exe();
 
     let target = self_update_crate::get_target().context(ErrorKind::SelfUpdate)?;
-    let result = self_update_crate::backends::github::Update::configure()
+    let result = Update::configure()
         .context(ErrorKind::SelfUpdate)?
         .repo_owner("r-darwish")
         .repo_name("topgrade")
@@ -27,11 +28,12 @@ pub fn self_update() -> Result<(), Error> {
         .no_confirm(true)
         .build()
         .context(ErrorKind::SelfUpdate)?
-        .update()
+        .update2()
         .context(ErrorKind::SelfUpdate)?;
 
-    if let self_update_crate::Status::Updated(version) = &result {
+    if let GitHubUpdateStatus::Updated(release) = &result {
-        println!("\nTopgrade upgraded to {}", version);
+        println!("\nTopgrade upgraded to {}:\n", release.version());
+        println!("{}", release.body);
     } else {
         println!("Topgrade is up-to-date");
     }