CLI/git: support configuration for repo location / prefix

This is probably more convenient than always passing a command line
argument.

Use notmuch-config for consistency with other notmuch CLI tools.

Now that there is something relevant in the config files, test the
--config option.

doc/man1/notmuch-config.rst

@@ -107,6 +107,14 @@ paths are presumed relative to `$HOME` for items in section
 
     Default: see :ref:`database`
 
+.. nmconfig:: git.path
+
+    Default location for git repository for :any:`notmuch-git`.
+
+.. nmconfig:: git.tag_prefix
+
+    Default tag prefix (filter) for :any:`notmuch-git`.
+
 .. nmconfig:: index.decrypt
 
     Policy for decrypting encrypted messages during indexing.  Must be

doc/man1/notmuch-git.rst

@@ -246,6 +246,8 @@ value to locate the git repository.
 
 - Environment variable :envvar:`NOTMUCH_GIT_DIR`.
 
+- Configuration item :nmconfig:`git.path`
+
 - If invoked as `nmbug` or with the :option:`--nmbug` option,
   :code:`$HOME/.nmbug`; otherwise
   :code:`$XDG_DATA_HOME/notmuch/$NOTMUCH_PROFILE/git`.
@@ -262,6 +264,8 @@ value to define the tag prefix.
 
 - Environment variable :envvar:`NOTMUCH_GIT_PREFIX`.
 
+- Configuration item :nmconfig:`git.tag_prefix`.
+
 - If invoked as `nmbug` or with the :option:`--nmbug` option,
   :code:`notmuch::`, otherwise the empty string.
 

notmuch-git.py

@@ -1019,7 +1019,9 @@ if __name__ == '__main__':
         if nmbug_mode:
             default = _os.path.join('~', '.nmbug')
         else:
-            default = xdg_data_path(notmuch_profile)
+            default = _notmuch_config_get ('git.path')
+            if default == '':
+                default = xdg_data_path(notmuch_profile)
 
         NOTMUCH_GIT_DIR = _os.path.expanduser(_os.getenv('NOTMUCH_GIT_DIR', default))
 
@@ -1033,7 +1035,7 @@ if __name__ == '__main__':
         if nmbug_mode:
             prefix = 'notmuch::'
         else:
-            prefix = ''
+            prefix = _notmuch_config_get ('git.tag_prefix')
 
         TAG_PREFIX =  _os.getenv('NOTMUCH_GIT_PREFIX', prefix)
 

test/T850-git.sh

@@ -15,6 +15,13 @@ git config --global user.name  "Notmuch Test Suite"
 test_begin_subtest "init"
 test_expect_success "notmuch git -p '' -C remote.git init"
 
+test_begin_subtest "init (git.path)"
+notmuch config set git.path configured.git
+notmuch git init
+notmuch config set git.path
+output=$(git -C configured.git rev-parse --is-bare-repository)
+test_expect_equal "$output" "true"
+
 test_begin_subtest "clone"
 test_expect_success "notmuch git -p '' -C tags.git clone remote.git"
 
@@ -102,6 +109,17 @@ EOF
 notmuch git -C tags.git checkout
 test_expect_equal_file EXPECTED OUTPUT
 
+test_begin_subtest "status (global config argument)"
+cp notmuch-config notmuch-config.new
+notmuch --config=notmuch-config.new config set git.path tags.git
+notmuch tag +test id:20091117190054.GU3165@dottiness.seas.harvard.edu
+notmuch --config=./notmuch-config.new git status > OUTPUT
+cat <<EOF > EXPECTED
+A	20091117190054.GU3165@dottiness.seas.harvard.edu	test
+EOF
+notmuch --config=notmuch-config.new git checkout
+test_expect_equal_file EXPECTED OUTPUT
+
 test_begin_subtest "fetch"
 notmuch tag +test2 id:20091117190054.GU3165@dottiness.seas.harvard.edu
 notmuch git -C remote.git commit
@@ -175,6 +193,32 @@ repository = CWD/remote.git
 EOF
 test_expect_equal_file EXPECTED OUTPUT
 
+
+test_begin_subtest "env variable NOTMUCH_GIT_DIR overrides config when invoked as 'nmbug'"
+notmuch config set git.path `pwd`/bar
+NOTMUCH_GIT_DIR=`pwd`/remote.git  "$NOTMUCH_BUILDDIR"/nmbug -ldebug status |& grep '^repository' | notmuch_dir_sanitize > OUTPUT
+notmuch config set git.path
+cat <<EOF > EXPECTED
+repository = CWD/remote.git
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "env variable NOTMUCH_GIT_DIR overrides config when invoked as 'notmuch git'"
+notmuch config set git.path `pwd`/bar
+NOTMUCH_GIT_DIR=`pwd`/remote.git notmuch git -ldebug status |& grep '^repository' | notmuch_dir_sanitize > OUTPUT
+notmuch config set git.path
+cat <<EOF > EXPECTED
+repository = CWD/remote.git
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "env variable NOTMUCH_GIT_PREFIX works when invoked as 'nmbug'"
+NOTMUCH_GIT_PREFIX=env:: "$NOTMUCH_BUILDDIR"/nmbug -ldebug status |& grep '^prefix' | notmuch_dir_sanitize > OUTPUT
+cat <<EOF > EXPECTED
+prefix = env::
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
 test_begin_subtest "env variable NOTMUCH_GIT_PREFIX works when invoked as nmbug"
 NOTMUCH_GIT_PREFIX=foo:: "$NOTMUCH_BUILDDIR"/nmbug -ldebug status |& grep '^prefix' | notmuch_dir_sanitize > OUTPUT
 cat <<EOF > EXPECTED
@@ -182,8 +226,19 @@ prefix = foo::
 EOF
 test_expect_equal_file EXPECTED OUTPUT
 
-test_begin_subtest "env variable NOTMUCH_GIT_PREFIX works when invoked as 'notmuch git'"
+test_begin_subtest "env variable NOTMUCH_GIT_PREFIX overrides config when invoked as 'nmbug'"
+notmuch config set git.tag_prefix config::
+NOTMUCH_GIT_PREFIX=env:: "$NOTMUCH_BUILDDIR"/nmbug -ldebug status |& grep '^prefix' | notmuch_dir_sanitize > OUTPUT
+notmuch config set git.path
+cat <<EOF > EXPECTED
+prefix = env::
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "env variable NOTMUCH_GIT_PREFIX overrides config when invoked as 'notmuch git'"
+notmuch config set git.tag_prefix config::
 NOTMUCH_GIT_PREFIX=env:: notmuch git -ldebug status |& grep '^prefix' | notmuch_dir_sanitize > OUTPUT
+notmuch config set git.path
 cat <<EOF > EXPECTED
 prefix = env::
 EOF
@@ -210,4 +265,25 @@ CWD/$repo
 EOF
 test_expect_equal_file EXPECTED OUTPUT
 
+test_begin_subtest "init, configured location"
+repo=configured-tags
+notmuch config set git.path `pwd`/$repo
+notmuch git -ldebug init |& grep '^repository' | notmuch_dir_sanitize > OUTPUT
+notmuch config set git.path
+git -C $repo rev-parse --absolute-git-dir | notmuch_dir_sanitize >> OUTPUT
+cat <<EOF > EXPECTED
+repository = CWD/$repo
+CWD/$repo
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "configured tag prefix"
+notmuch config set git.tag_prefix test::
+notmuch git -ldebug status |& grep '^prefix' > OUTPUT
+notmuch config set git.tag_prefix
+cat <<EOF > EXPECTED
+prefix = test::
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
 test_done