add 'mfind' command, like 'find' with mu4e defaults

Add a command 'mfind' which follows the mu4e defaults, i.e.
--include-related, --skip-dups.

man/Makefile.am

@@ -1,4 +1,4 @@
-## Copyright (C) 2008-2017 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
+## Copyright (C) 2008-2019 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
 ##
 ## This program is free software; you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
@@ -32,4 +32,14 @@ dist_man_MANS =		\
 	mu-script.1	\
 	mu-verify.1     \
 	mu-view.1	\
-	mu.1
+	mu.1		\
+	$(BUILT_SOURCES)
+
+BUILT_SOURCES=		\
+	mu-mfind.1
+
+mu-mfind.1: mu-find.1
+	cp -f $< $@
+
+CLEANFILES=		\
+	$(BUILT_SOURCES)

man/mu-easy.1

@@ -296,6 +296,7 @@ Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
 .BR mu (1),
 .BR mu-index (1),
 .BR mu-find (1),
+.BR mu-mfind (1),
 .BR mu-mkdir (1),
 .BR mu-view (1),
 .BR mu-extract (1)

man/mu-find.1

@@ -4,6 +4,8 @@
 
 mu find \- find e-mail messages in the \fBmu\fR database.
 
+mu mfind \- find e-mail messages in the \fBmu\fR database with mu4e defaults.
+
 .SH SYNOPSIS
 
 .B mu find [options] <search expression>
@@ -13,6 +15,9 @@ mu find \- find e-mail messages in the \fBmu\fR database.
 \fBmu find\fR is the \fBmu\fR command for searching e-mail message
 that were stored earlier using \fBmu index\fR(1).
 
+\fBmu mfind\fR is a version of \fBmu find\fR that defaults to
+\f--include-related\fR and \fB--skip-dups\fR, just like \fBmu4e\fR does.
+
 .SH SEARCHING MAIL
 
 \fBmu find\fR starts a search for messages in the database that match

mu/mu-config.c

@@ -172,7 +172,7 @@ config_options_group_index (void)
 }
 
 static void
-set_group_find_defaults (void)
+set_group_find_defaults ()
 {
 	/* note, when no fields are specified, we use
 	 * date-from-subject, and sort descending by date. If fields
@@ -190,6 +190,13 @@ set_group_find_defaults (void)
 			get_output_format (MU_CONFIG.formatstr);
 
 	expand_dir (MU_CONFIG.linksdir);
+
+	if (MU_CONFIG.cmd == MU_CONFIG_CMD_MFIND) {
+		/* 'mfind' --> find with mu4e defaults */
+		MU_CONFIG.include_related = TRUE;
+		MU_CONFIG.skip_dups	  = TRUE;
+		MU_CONFIG.cmd		  = MU_CONFIG_CMD_FIND;
+	}
 }
 
 static GOptionGroup*
@@ -462,6 +469,7 @@ cmd_from_string (const char *str)
 		{ "find",    MU_CONFIG_CMD_FIND    },
 		{ "help",    MU_CONFIG_CMD_HELP    },
 		{ "index",   MU_CONFIG_CMD_INDEX   },
+		{ "mfind",   MU_CONFIG_CMD_MFIND   },
 		{ "mkdir",   MU_CONFIG_CMD_MKDIR   },
 		{ "remove",  MU_CONFIG_CMD_REMOVE  },
 		{ "script",  MU_CONFIG_CMD_SCRIPT  },
@@ -535,6 +543,7 @@ get_option_group (MuConfigCmd cmd)
 	case MU_CONFIG_CMD_EXTRACT:
 		return config_options_group_extract();
 	case MU_CONFIG_CMD_FIND:
+	case MU_CONFIG_CMD_MFIND:
 		return config_options_group_find();
 	case MU_CONFIG_CMD_INDEX:
 		return config_options_group_index();

mu/mu-config.h

@@ -34,7 +34,7 @@ G_BEGIN_DECLS
 #define MU_NOCOLOR "MU_NOCOLOR"
 
 
-enum _MuConfigFormat {
+typedef enum {
 	MU_CONFIG_FORMAT_UNKNOWN = 0,
 
 	/* for cfind, find, view */
@@ -60,11 +60,9 @@ enum _MuConfigFormat {
 	MU_CONFIG_FORMAT_MQUERY,	/* output the mux query */
 
 	MU_CONFIG_FORMAT_EXEC		/* execute some command */
-};
+} MuConfigFormat;
-typedef enum _MuConfigFormat MuConfigFormat;
 
-
+typedef enum {
-enum _MuConfigCmd {
 	MU_CONFIG_CMD_UNKNOWN = 0,
 
 	MU_CONFIG_CMD_ADD,
@@ -73,6 +71,7 @@ enum _MuConfigCmd {
 	MU_CONFIG_CMD_FIND,
 	MU_CONFIG_CMD_HELP,
 	MU_CONFIG_CMD_INDEX,
+	MU_CONFIG_CMD_MFIND,
 	MU_CONFIG_CMD_MKDIR,
 	MU_CONFIG_CMD_REMOVE,
 	MU_CONFIG_CMD_SCRIPT,
@@ -82,8 +81,7 @@ enum _MuConfigCmd {
 	MU_CONFIG_CMD_VIEW,
 
 	MU_CONFIG_CMD_NONE
-};
+} MuConfigCmd;
-typedef enum _MuConfigCmd MuConfigCmd;
 
 
 #define mu_config_cmd_is_valid(C)					\