Display helpful advices even with -y.

src/rustup-cli/self_update.rs

@@ -302,30 +302,29 @@ pub fn install(no_prompt: bool, verbose: bool, mut opts: InstallOpts) -> Result<
         process::exit(1);
     }
 
-    // More helpful advice, skip if -y
-    if !no_prompt {
-        let cargo_home = try!(canonical_cargo_home());
-        let msg = if !opts.no_modify_path {
-            if cfg!(unix) {
-                format!(post_install_msg_unix!(), cargo_home = cargo_home)
-            } else {
-                format!(post_install_msg_win!(), cargo_home = cargo_home)
-            }
+    let cargo_home = try!(canonical_cargo_home());
+    let msg = if !opts.no_modify_path {
+        if cfg!(unix) {
+            format!(post_install_msg_unix!(), cargo_home = cargo_home)
         } else {
-            if cfg!(unix) {
-                format!(
-                    post_install_msg_unix_no_modify_path!(),
-                    cargo_home = cargo_home
-                )
-            } else {
-                format!(
-                    post_install_msg_win_no_modify_path!(),
-                    cargo_home = cargo_home
-                )
-            }
-        };
-        term2::stdout().md(msg);
+            format!(post_install_msg_win!(), cargo_home = cargo_home)
+        }
+    } else {
+        if cfg!(unix) {
+            format!(
+                post_install_msg_unix_no_modify_path!(),
+                cargo_home = cargo_home
+            )
+        } else {
+            format!(
+                post_install_msg_win_no_modify_path!(),
+                cargo_home = cargo_home
+            )
+        }
+    };
+    term2::stdout().md(msg);
 
+    if !no_prompt {
         // On windows, where installation happens in a console
         // that may have opened just for this purpose, require
         // the user to press a key to continue.

src/rustup-mock/src/clitools.rs

@@ -238,6 +238,18 @@ pub fn expect_err_ex(config: &Config, args: &[&str], stdout: &str, stderr: &str)
     }
 }
 
+pub fn expect_ok_contains(config: &Config, args: &[&str],
+                    stdout: &str, stderr: &str) {
+    let out = run(config, args[0], &args[1..], &[]);
+    if !out.ok || !out.stdout.contains(stdout) || !out.stderr.contains(stderr) {
+        print_command(args, &out);
+        println!("expected.ok: {}", true);
+        print_indented("expected.stdout.contains", stdout);
+        print_indented("expected.stderr.contains", stderr);
+        panic!();
+    }
+}
+
 pub fn expect_timeout_ok(config: &Config, timeout: Duration, args: &[&str]) {
     let mut child = cmd(config, args[0], &args[1..])
         .stdout(Stdio::null())

tests/cli-self-upd.rs

@@ -25,8 +25,9 @@ use std::path::Path;
 use std::fs;
 use std::process::Command;
 use remove_dir_all::remove_dir_all;
-use rustup_mock::clitools::{self, expect_err, expect_err_ex, expect_ok, expect_ok_ex,
-                            expect_stderr_ok, expect_stdout_ok, this_host_triple, Config, Scenario};
+use rustup_mock::clitools::{self, expect_err, expect_err_ex, expect_ok, expect_ok_contains,
+                            expect_ok_ex, expect_stderr_ok, expect_stdout_ok, this_host_triple,
+                            Config, Scenario};
 use rustup_mock::dist::calc_hash;
 use rustup_mock::{get_path, restore_path};
 use rustup_utils::{raw, utils};
@@ -813,10 +814,8 @@ fn as_rustup_setup() {
 #[test]
 fn first_install_exact() {
     setup(&|config| {
-        expect_ok_ex(
-            config,
-            &["rustup-init", "-y"],
-            r"
+        expect_ok_contains(config, &["rustup-init", "-y"],
+r"
   stable installed - 1.1.0 (hash-s-2)
 
 ",
@@ -842,14 +841,10 @@ info: default toolchain set to 'stable'
 fn reinstall_exact() {
     setup(&|config| {
         expect_ok(config, &["rustup-init", "-y"]);
-        expect_ok_ex(
-            config,
-            &["rustup-init", "-y"],
-            r"
-",
-            r"info: updating existing rustup installation
-",
-        );
+        expect_stderr_ok(config, &["rustup-init", "-y"],
+r"info: updating existing rustup installation
+"
+                  );
     });
 }