We have an indexopts structure for manipulating indexing in different
ways, but we also have three command-line invocations that can trigger
indexing: new, insert, and reindex.

This changeset prepares a common parser that these subcommands can
share.

At the moment, it's just --try-decrypt, but others will likely follow.
---
 notmuch-client.h | 12 ++++++++++++
 notmuch.c        | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/notmuch-client.h b/notmuch-client.h
index d17cdf01..27852360 100644
--- a/notmuch-client.h
+++ b/notmuch-client.h
@@ -495,4 +495,16 @@ void notmuch_exit_if_unmatched_db_uuid (notmuch_database_t *notmuch);
 void notmuch_process_shared_options (const char* subcommand_name);
 int notmuch_minimal_options (const char* subcommand_name,
 			     int argc, char **argv);
+
+
+struct _notmuch_client_index_options {
+    bool try_decrypt;
+    bool try_decrypt_set;
+    notmuch_indexopts_t * opts;
+};
+extern struct _notmuch_client_index_options index_options;
+extern const notmuch_opt_desc_t  notmuch_index_options [];
+notmuch_status_t
+notmuch_process_index_options (notmuch_database_t *notmuch, notmuch_config_t *config);
+
 #endif
diff --git a/notmuch.c b/notmuch.c
index 02148f2e..f83b5a6f 100644
--- a/notmuch.c
+++ b/notmuch.c
@@ -96,6 +96,45 @@ int notmuch_minimal_options (const char *subcommand_name,
     return opt_index;
 }
 
+
+struct _notmuch_client_index_options index_options = { };
+const notmuch_opt_desc_t  notmuch_index_options [] = {
+    { .opt_bool = &index_options.try_decrypt,
+      .present = &index_options.try_decrypt_set,
+      .name = "try-decrypt" },
+    { }
+};
+
+
+notmuch_status_t
+notmuch_process_index_options (notmuch_database_t *notmuch, g_mime_3_unused(notmuch_config_t *config))
+{
+    if (index_options.opts == NULL)
+	index_options.opts = notmuch_database_get_default_indexopts (notmuch);
+    if (index_options.try_decrypt_set) {
+	notmuch_status_t status;
+	if (index_options.opts == NULL)
+	    return NOTMUCH_STATUS_OUT_OF_MEMORY;
+	status = notmuch_indexopts_set_try_decrypt (index_options.opts, index_options.try_decrypt);
+	if (status != NOTMUCH_STATUS_SUCCESS) {
+	    fprintf (stderr, "Error: Failed to set try_decrypt to %s. (%s)\n",
+		     index_options.try_decrypt ? "True" : "False", notmuch_status_to_string (status));
+	    notmuch_indexopts_destroy (index_options.opts);
+	    return status;
+	}
+    }
+#if (GMIME_MAJOR_VERSION < 3)
+    if (index_options.opts && notmuch_indexopts_get_try_decrypt (index_options.opts)) {
+	const char* gpg_path = notmuch_config_get_crypto_gpg_path (config);
+	if (gpg_path && strcmp(gpg_path, "gpg"))
+	    fprintf (stderr, "Warning: deprecated crypto.gpg_path is set to '%s'\n"
+		     "\tbut ignoring (use $PATH instead)\n", gpg_path);
+    }
+#endif
+    return NOTMUCH_STATUS_SUCCESS;
+}
+
+
 static command_t commands[] = {
     { NULL, notmuch_command, NOTMUCH_CONFIG_OPEN | NOTMUCH_CONFIG_CREATE,
       "Notmuch main command." },
-- 
2.14.2

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