emacs: Add new option notmuch-search-hide-excluded

[notmuch] / doc / man1 / notmuch-git.rst

diff --git a/doc/man1/notmuch-git.rst b/doc/man1/notmuch-git.rst
index fa7a748ea0c22c610dafb31c7eb22952731926d4..33a46f84058750ef19b910772089bbe07f7956ed 100644 (file)
--- a/doc/man1/notmuch-git.rst
+++ b/doc/man1/notmuch-git.rst
@@ -125,13 +125,19 @@ Fetch changes from the remote repository.
 
 Show brief help for an `notmuch git` command.
 
-.. option:: init
+.. option:: init [--format-version=N]
 
 Create an empty `notmuch git` repository.
 
 This wraps 'git init' with a few extra steps to support subsequent
 status and commit commands.
 
+   .. describe:: --format-version=N
+
+   Create a repo in format version N. By default :any:`notmuch-git`
+   uses the highest supported version, which is the best choice for
+   most use-cases.
+
 .. option:: log [arg ...]
 
 A wrapper for 'git log'.
@@ -235,14 +241,46 @@ REPOSITORY CONTENTS
 ===================
 
 The tags are stored in the git repo (and exported) as a set of empty
-files. For a message with Message-Id *id*, for each tag *tag*, there
+files. These empty files are contained within a directory named after
+the message-id.
+
+In what follows `encode()` represents a POSIX filesystem safe
+encoding. The encoding preserves alphanumerics, and the characters
+`+-_@=.,:`.  All other octets are replaced with `%` followed by a two
+digit hex number.
+
+Currently :any:`notmuch-git` can read any format version, but can only
+create (via :any:`init`) :ref:`version 1 <format_version_1>` repositories.
+
+.. _format_version_0:
+
+Version 0
+---------
+
+This is the legacy format created by the `nmbug` tool prior to release
+0.37.  For a message with Message-Id *id*, for each tag *tag*, there
 is an empty file with path
 
        tags/ `encode` (*id*) / `encode` (*tag*)
 
-The encoding preserves alphanumerics, and the characters `+-_@=.,:`.
-All other octets are replaced with `%` followed by a two digit hex
-number.
+.. _format_version_1:
+
+Version 1
+---------
+
+In format version 1 and later, the format version is contained in a
+top level file called FORMAT.
+
+For a message with Message-Id *id*, for each tag *tag*, there
+is an empty file with path
+
+       tags/ `hash1` (*id*) / `hash2` (*id*) `encode` (*id*) / `encode` (*tag*)
+
+The hash functions each represent one byte of the `blake2b` hex
+digest.
+
+Compared to :ref:`version 0 <format_version_0>`, this reduces the
+number of subdirectories within each directory.
 
 .. _repo_location:
 
@@ -287,11 +325,11 @@ If it is unset, 'default' is assumed.
 
 .. envvar:: NOTMUCH_GIT_DIR
 
-   Default location of git repository. Overriden by :option:`--git-dir`.
+   Default location of git repository. Overridden by :option:`--git-dir`.
 
 .. envvar:: NOTMUCH_GIT_PREFIX
 
-   Default tag prefix (filter). Overriden by :option:`--tag-prefix`.
+   Default tag prefix (filter). Overridden by :option:`--tag-prefix`.
 
 SEE ALSO
 ========