create the directory specified by the config_dir before saving config files (#762)

Author: ahl

cli/src/cmd_auth.rs

@@ -285,7 +285,8 @@ impl CmdAuthLogin {
         let uid = user.id;
 
         // Read / modify / write the credentials file.
-        let credentials_path = ctx.client_config().config_dir().join("credentials.toml");
+        let config_dir = ctx.client_config().config_dir();
+        let credentials_path = config_dir.join("credentials.toml");
         let mut credentials =
             if let Ok(contents) = std::fs::read_to_string(credentials_path.clone()) {
                 contents.parse::<toml_edit::DocumentMut>().unwrap()
@@ -325,6 +326,12 @@ impl CmdAuthLogin {
         profile.insert("token", toml_edit::value(token));
         profile.insert("user", toml_edit::value(uid.to_string()));
 
+        std::fs::create_dir_all(config_dir).unwrap_or_else(|_| {
+            panic!(
+                "unable to create config directory '{}'",
+                config_dir.to_string_lossy()
+            )
+        });
         std::fs::write(credentials_path, credentials.to_string())
             .expect("unable to write credentials.toml");
 
@@ -383,7 +390,8 @@ impl CmdAuthLogout {
             return Ok(());
         }
 
-        let credentials_path = ctx.client_config().config_dir().join("credentials.toml");
+        let config_dir = ctx.client_config().config_dir();
+        let credentials_path = config_dir.join("credentials.toml");
 
         if self.all {
             // Clear the entire file for users who want to reset their known hosts.
@@ -408,6 +416,12 @@ impl CmdAuthLogout {
                 let profiles = profiles.as_table_mut().unwrap();
                 profiles.remove(profile_name);
             }
+            std::fs::create_dir_all(config_dir).unwrap_or_else(|_| {
+                panic!(
+                    "unable to create config directory '{}'",
+                    config_dir.to_string_lossy()
+                )
+            });
             std::fs::write(credentials_path, credentials.to_string())
                 .expect("unable to write credentials.toml");
             println!(

cli/tests/test_auth.rs

@@ -91,11 +91,14 @@ fn test_auth_login_first() {
 
     let temp_dir = tempfile::tempdir().unwrap().into_path();
 
+    // Make sure we know how to make non-existent directories.
+    let config_dir = temp_dir.join(".config").join("oxide");
+
     let cmd = Command::cargo_bin("oxide")
         .unwrap()
         .env("RUST_BACKTRACE", "1")
         .arg("--config-dir")
-        .arg(temp_dir.as_os_str())
+        .arg(config_dir.as_os_str())
         .arg("auth")
         .arg("login")
         .arg("--no-browser")
@@ -115,14 +118,14 @@ fn test_auth_login_first() {
     assert_contents(
         "tests/data/test_auth_login_first_credentials.toml",
         &scrub_server(
-            read_to_string(temp_dir.join("credentials.toml")).unwrap(),
+            read_to_string(config_dir.join("credentials.toml")).unwrap(),
             server.url(""),
         ),
     );
 
     assert_contents(
         "tests/data/test_auth_login_first_config.toml",
-        &read_to_string(temp_dir.join("config.toml")).unwrap(),
+        &read_to_string(config_dir.join("config.toml")).unwrap(),
     );
 }