From 45bbb20fc8b6fb81d489c9d71f38d5607bb242bd Mon Sep 17 00:00:00 2001
From: David Runge <dave@sleepmap.de>
Date: Sat, 7 Sep 2019 12:05:54 +0200
Subject: bin/mbsync2mutt_mailboxes: Adding helper script to write a mutt
 configuration snippet, defining the available mailboxes (per account). The
 script uses the output of mbsync -al to get a list of all mailboxes it has
 access to.

---
 bin/mbsync2mutt_mailboxes | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100755 bin/mbsync2mutt_mailboxes

diff --git a/bin/mbsync2mutt_mailboxes b/bin/mbsync2mutt_mailboxes
new file mode 100755
index 0000000..c98e219
--- /dev/null
+++ b/bin/mbsync2mutt_mailboxes
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+#
+# This script writes account specific output of mbsync -l to a configuration
+# file, that can be used by mutt, to define its mailboxes.
+# It requires isync (provides mbsync) to be installed.
+#
+# Creates an output file (defined by the first arguments to this script), which
+# adds a 'mailboxes' entry (see `man 5 muttrc`) of all mailboxes in a specific
+# account, that mbsync is setup to sync (see `man 1 mbsync`).
+
+set -eou pipefail
+IFS=$'\n'
+
+declare -A mailboxes
+output_file=""
+
+get_mailboxes_by_account() {
+  local account=""
+  for entry in $(mbsync -al); do
+    if [[ "$entry" == *':' ]]; then
+      account="${entry/:/}"
+      mailboxes["$account"]=""
+    else
+      mailboxes["$account"]="${mailboxes[$account]} '+${account}/${entry}'"
+    fi
+  done
+}
+
+output_mailboxes_to_file() {
+  tmpfile="$(mktemp)"
+  for account in "${!mailboxes[@]}"; do
+    echo -e "mailboxes ${mailboxes[$account]}\n" >> "$tmpfile"
+  done
+  mv "$tmpfile" "$output_file"
+}
+
+if [ $# -ne 1 ]; then
+  echo "Requires an output file name as first argument."
+  exit 1
+else
+  output_file="$1"
+fi
+
+get_mailboxes_by_account
+output_mailboxes_to_file
-- 
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