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From: David Bremner <david@tethera.net>
To: David Edmondson <dme@dme.org>, notmuch@notmuchmail.org
Subject: Re: [PATCH v1 2/2] notmuch: Database paths without a leading / are
 relative to $HOME
In-Reply-To: <20180825115756.24148-3-dme@dme.org>
References: <20180825115756.24148-1-dme@dme.org>
 <20180825115756.24148-3-dme@dme.org>
Date: Fri, 07 Sep 2018 21:10:42 -0300
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David Edmondson <dme@dme.org> writes:

> If the database path specified in the configuration file does *not*
> start with a /, presume that it is relative to $HOME and modify the
> path used to open the database accordingly.
> ---
>  notmuch-config.c | 14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/notmuch-config.c b/notmuch-config.c
> index e1b16609..bf77cc9d 100644
> --- a/notmuch-config.c
> +++ b/notmuch-config.c
> @@ -660,7 +660,19 @@ _config_set_list (notmuch_config_t *config,
>  const char *
>  notmuch_config_get_database_path (notmuch_config_t *config)
>  {
> -    return _config_get (config, &config->database_path, "database", "path");
> +    char *db_path = (char *)_config_get (config, &config->database_path, "database", "path");
> +
> +    if (db_path && *db_path != '/') {
> +	/* If the path in the configuration file begins with any
> +	 * character other than /, presume that it is relative to
> +	 * $HOME and update as appropriate.
> +	 */
> +	char *abs_path = talloc_asprintf (config, "%s/%s", getenv ("HOME"), db_path);
> +	talloc_free (db_path);
> +	db_path = config->database_path = abs_path;
> +    }

In the unlikely event that HOME is not set, it would be nicer to print a
message to that effect, rather than

  configuration file (null)/.notmuch-config not found.
  Try running 'notmuch setup' to create a configuration.