feat(logout): add logout command

rather than using `ngit login` which is less intuative

1 files changed, 81 insertions, 0 deletions

diff --git a/src/bin/ngit/sub_commands/logout.rs b/src/bin/ngit/sub_commands/logout.rs
new file mode 100644
index 0000000..682c017
--- /dev/null
+++ b/src/bin/ngit/sub_commands/logout.rs
@@ -0,0 +1,81 @@
+use anyhow::{Context, Result};
+use ngit::{
+    git::remove_git_config_item,
+    login::{existing::load_existing_login, SignerInfoSource},
+};
+
+use crate::{
+    git::Repo,
+    sub_commands::login::{format_items_as_list, get_global_login_config_items_set},
+};
+
+pub async fn launch() -> Result<()> {
+    let git_repo_result = Repo::discover().context("failed to find a git repository");
+    let git_repo = {
+        match git_repo_result {
+            Ok(git_repo) => Some(git_repo),
+            Err(_) => None,
+        }
+    };
+    logout(git_repo.as_ref()).await
+}
+
+async fn logout(git_repo: Option<&Repo>) -> Result<()> {
+    for source in if std::env::var("NGITTEST").is_ok() {
+        vec![SignerInfoSource::GitLocal]
+    } else {
+        vec![SignerInfoSource::GitLocal, SignerInfoSource::GitGlobal]
+    } {
+        if let Ok((_, user_ref, source)) =
+            load_existing_login(&git_repo, &None, &None, &Some(source), None, true, false).await
+        {
+            for item in [
+                "nostr.nsec",
+                "nostr.npub",
+                "nostr.bunker-uri",
+                "nostr.bunker-app-key",
+            ] {
+                if let Err(error) = remove_git_config_item(
+                    if source == SignerInfoSource::GitLocal {
+                        &git_repo
+                    } else {
+                        &None
+                    },
+                    item,
+                ) {
+                    println!(
+                        "failed to log out {}as {}",
+                        if source == SignerInfoSource::GitLocal {
+                            "from local git repository "
+                        } else {
+                            ""
+                        },
+                        user_ref.metadata.name
+                    );
+                    eprintln!("{error:?}");
+                    eprintln!(
+                        "consider manually removing {} git config items: {}",
+                        if source == SignerInfoSource::GitGlobal {
+                            "global"
+                        } else {
+                            "local"
+                        },
+                        format_items_as_list(&get_global_login_config_items_set())
+                    );
+                    return Ok(());
+                }
+            }
+            println!(
+                "logged out {}as {}",
+                if source == SignerInfoSource::GitLocal {
+                    "from local git repository "
+                } else {
+                    ""
+                },
+                user_ref.metadata.name
+            );
+            return Ok(());
+        }
+    }
+    Ok(())
+}