From da49e774499e180b6f8eb2337b3087a6a32f9e5b Mon Sep 17 00:00:00 2001
From: "Dirk-Jan C. Binnema" <djcb@djcbsoftware.nl>
Date: Sat, 16 Sep 2023 11:09:11 +0300
Subject: [PATCH] mu-info: add 'maildirs' topic

For showing all maildirs under the root.
---
 man/mu-info.1.org |  1 +
 mu/mu-cmd-info.cc | 20 +++++++++++++++-----
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/man/mu-info.1.org b/man/mu-info.1.org
index 1f68e00e..000f55f3 100644
--- a/man/mu-info.1.org
+++ b/man/mu-info.1.org
@@ -16,6 +16,7 @@
 - *mu*: general mu build information (default)
 - *store*: information about the message store
 - *fields*: table with all the query fields and flags
+- *maildirs*: list all maildirs under the store's root-maildir
 
 Note that while running (e.g. ~mu4e~), some of the ~store~ information can be
 delayed due to database caching.
diff --git a/mu/mu-cmd-info.cc b/mu/mu-cmd-info.cc
index 7550d9ff..7f082d10 100644
--- a/mu/mu-cmd-info.cc
+++ b/mu/mu-cmd-info.cc
@@ -219,6 +219,15 @@ topic_store(const Mu::Store& store, const Options& opts)
 	return Ok();
 }
 
+static Result<void>
+topic_maildirs(const Mu::Store& store, const Options& opts)
+{
+	for (auto&& mdir: store.maildirs())
+		mu_println("{}", mdir);
+
+	return Ok();
+}
+
 static Result<void>
 topic_mu(const Options& opts)
 {
@@ -227,10 +236,8 @@ topic_mu(const Options& opts)
 	using namespace tabulate;
 
 	info.add_row({"property", "value", "description"});
-	info.add_row({"mu-version", std::string{VERSION},
-			"Mu runtime version"});
-	info.add_row({"xapian-version", Xapian::version_string(),
-			"Xapian runtime version"});
+	info.add_row({"mu-version", std::string{VERSION}, "Mu runtime version"});
+	info.add_row({"xapian-version", Xapian::version_string(), "Xapian runtime version"});
 	info.add_row({"gmime-version",
 			mu_format("{}.{}.{}", gmime_major_version, gmime_minor_version,
 				  gmime_micro_version), "GMime runtime version"});
@@ -281,6 +288,8 @@ Mu::mu_cmd_info(const Mu::Store& store, const Options& opts)
 	const auto topic{opts.info.topic};
 	if (topic == "store")
 		return topic_store(store, opts);
+	else if (topic == "maildirs")
+		return topic_maildirs(store, opts);
 	else if (topic == "fields") {
 		topic_fields(opts);
 		std::cout << std::endl;
@@ -298,8 +307,9 @@ Mu::mu_cmd_info(const Mu::Store& store, const Options& opts)
 					 col.fg(Color::Green), t, col.reset(), d);
 		};
 
-		mu_println("\nother info topics ('mu info <topic>'):\n{}\n{}",
+		mu_println("\nother info topics ('mu info <topic>'):\n{}\n{}\n{}",
 			   topic("store", "information about the message store (database)"),
+			   topic("maildirs", "list the maildirs under the store's root-maildir"),
 			   topic("fields",  "information about message fields"));
 	}