add pointer to freelists.org

[notmuch-wiki] / faq.mdwn

diff --git a/faq.mdwn b/faq.mdwn
index 1cc224e8ed5d3c1602366c0a8e2a80a8db4f80a8..2558eb3869a9f9566bc91dca0ca5c4282e57010c 100644 (file)
--- a/faq.mdwn
+++ b/faq.mdwn
@@ -45,7 +45,7 @@ Next, use that to query the messages:
 ## How do I search for punctuation, specific special characters, or regexp?
 
 Please see the [[notmuch-search-terms manual
 ## How do I search for punctuation, specific special characters, or regexp?
 
 Please see the [[notmuch-search-terms manual

-page|manpages/notmuch-search-terms-7]] first,
+page|manpages/notmuch-search-terms-7]] first.

 
 The main thing to understand is that Xapian, and therefore Notmuch, searches are
 closer to natural language searches than regular expression
 
 The main thing to understand is that Xapian, and therefore Notmuch, searches are
 closer to natural language searches than regular expression


@@ -53,3 +53,49 @@ searches. Punctuation is mostly ignored.
 
 The boolean prefix searches (see Boolean and Probabilistic Prefixes in the man
 page), such as tag: or path: searches, need an exact match.
 
 The boolean prefix searches (see Boolean and Probabilistic Prefixes in the man
 page), such as tag: or path: searches, need an exact match.

+
+## How do I search for the `List-Id:` header?
+
+Currently there is no way to search for `List-Id:`. As a workaround, try using a
+`to:` prefix search (which covers both `To:` and `Cc:` headers) on the mailing
+list address.
+
+Limitations in the duplicate message handling are the main reason for not
+indexing the `List-Id:` header. If you receive the same message via both the
+list and directly (by way of `To:` or `Cc:`), only the first message encountered
+will be indexed. Only the message received via the list will have `List-Id:`,
+but you would expect a `List-Id:` search to find the message, regardless of the
+order in which the duplicates were received. This is a more general problem than
+just `List-Id:`, and once this has been resolved, adding `List-Id:` indexing is
+trivial.
+
+## Can I use notmuch with grsec?
+
+Sure! It works out of the box. If you have TPE enabled (trusted path execution),
+make sure the user is executing the script belongs to the
+`kernel.grsecurity.tpe_gid` (in debian this is grsec-tpe).
+This is required in order to run the `pre-new` and `post-new` hooks.
+
+## Can I tag threads?
+
+No. Tagging is message based.
+
+It is possible, however, to make tags propagate to all messages in a thread
+using a little bit of scripting in the [[post-new
+hook|manpages/notmuch-hooks-5]]. For example, to add the muted tag to all
+messages in threads that have at least one message with the muted tag:
+
+        THREAD_TAGS="muted"
+        for tag in "$THREAD_TAGS"; do
+                notmuch tag +$tag $(notmuch search --output=threads tag:$tag)
+        done
+
+You can add other tags to `THREAD_TAGS` as needed. Note that this is one way
+only; you need to explicitly remove the tag from all the messages in a thread to
+stop it from propagating again.
+
+
+## How can I extract a git patchset for an email thread?
+
+See [notmuch-extract-patch](https://github.com/aaptel/notmuch-extract-patch).
+