[bug#42899] [PATCH v2 02/10] gnu: dovecot: Patch and provide a static path for module directory.

[Efraim Flashner <efraim@flashner.co.il>]

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How are all the XXX_MODULE_DIR variables set? Would it be possible to
just set MODULE_DIR to /etc/dovecot/modules and leave the others as-is?
They seem to just use a file/folder under MODULE_DIR.

On Tue, Aug 18, 2020 at 02:00:30PM +0200, Alexey Abramov wrote:
> * gnu/local.mk (dist_patch_DATA): Add it.
> * gnu/packages/patches/dovecot-use-static-path-for-moduledir.patch: New file.
> * gnu/packages/mail.scm (dovecot)[source]: Use it.
> 
> Signed-off-by: Alexey Abramov <levenson@mmer.org>
> ---
>  gnu/local.mk                                  |   1 +
>  gnu/packages/mail.scm                         |   3 +-
>  ...ovecot-use-static-path-for-moduledir.patch | 146 ++++++++++++++++++
>  3 files changed, 149 insertions(+), 1 deletion(-)
>  create mode 100644 gnu/packages/patches/dovecot-use-static-path-for-moduledir.patch
> 
> diff --git a/gnu/local.mk b/gnu/local.mk
> index 87bd7094bf..2817deb01f 100644
> --- a/gnu/local.mk
> +++ b/gnu/local.mk
> @@ -900,6 +900,7 @@ dist_patch_DATA =						\
>    %D%/packages/patches/doc++-include-directives.patch		\
>    %D%/packages/patches/doc++-segfault-fix.patch			\
>    %D%/packages/patches/docker-fix-tests.patch			\
> +  %D%/packages/patches/dovecot-use-static-path-for-moduledir.patch	\
>    %D%/packages/patches/dovecot-trees-support-dovecot-2.3.patch	\
>    %D%/packages/patches/doxygen-test.patch			\
>    %D%/packages/patches/doxygen-1.8.17-runtests.patch		\
> diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
> index 98e75fa90f..8e7d5b2fc1 100644
> --- a/gnu/packages/mail.scm
> +++ b/gnu/packages/mail.scm
> @@ -1411,7 +1411,8 @@ facilities for checking incoming mail.")
>                             (version-major+minor version) "/"
>                             "dovecot-" version ".tar.gz"))
>         (sha256
> -        (base32 "1p5gp8jbavcsaara5mfn5cbrnlxssajnchczbgmmfzr7228fmnfk"))))
> +        (base32 "1p5gp8jbavcsaara5mfn5cbrnlxssajnchczbgmmfzr7228fmnfk"))
> +       (patches (search-patches "dovecot-use-static-path-for-moduledir.patch"))))
>      (build-system gnu-build-system)
>      (native-inputs
>       `(("pkg-config" ,pkg-config)))
> diff --git a/gnu/packages/patches/dovecot-use-static-path-for-moduledir.patch b/gnu/packages/patches/dovecot-use-static-path-for-moduledir.patch
> new file mode 100644
> index 0000000000..da9f4034f4
> --- /dev/null
> +++ b/gnu/packages/patches/dovecot-use-static-path-for-moduledir.patch
> @@ -0,0 +1,146 @@
> +Subject: [PATCH] Use static path for moduledir.
> +
> +Patch was taken from NixOS repo. Make dovecot look for plugins in
> +/etc/dovecot/modules so we can symlink plugins from several packages
> +there.
> +
> +The rational behind the patch can be found here:
> +https://dovecot.org/pipermail/dovecot/2013-April/089931.html
> +
> +---
> + src/auth/main.c                         | 4 ++--
> + src/config/config-parser.c              | 2 +-
> + src/config/config-parser.h              | 2 +-
> + src/dict/main.c                         | 2 +-
> + src/doveadm/doveadm-util.c              | 4 ++--
> + src/lib-fs/fs-api.c                     | 2 +-
> + src/lib-ssl-iostream/iostream-ssl.c     | 4 ++--
> + src/lib-storage/mail-storage-settings.c | 2 +-
> + 9 files changed, 12 insertions(+), 12 deletions(-)
> +
> +diff --git a/src/auth/main.c b/src/auth/main.c
> +index 2dbf9e176..b1e778ab7 100644
> +--- a/src/auth/main.c
> ++++ b/src/auth/main.c
> +@@ -192,7 +192,7 @@ static void main_preinit(void)
> + 	mod_set.debug = global_auth_settings->debug;
> + 	mod_set.filter_callback = auth_module_filter;
> +
> +-	modules = module_dir_load(AUTH_MODULE_DIR, NULL, &mod_set);
> ++	modules = module_dir_load("/etc/dovecot/modules/auth", NULL, &mod_set);
> + 	module_dir_init(modules);
> +
> + 	if (!worker)
> +@@ -223,7 +223,7 @@ void auth_module_load(const char *names)
> + 	mod_set.debug = global_auth_settings->debug;
> + 	mod_set.ignore_missing = TRUE;
> +
> +-	modules = module_dir_load_missing(modules, AUTH_MODULE_DIR, names,
> ++	modules = module_dir_load_missing(modules, "/etc/dovecot/modules/auth", names,
> + 					  &mod_set);
> + 	module_dir_init(modules);
> + }
> +diff --git a/src/config/config-parser.c b/src/config/config-parser.c
> +index 6894123ea..07e9fecb4 100644
> +--- a/src/config/config-parser.c
> ++++ b/src/config/config-parser.c
> +@@ -1077,7 +1077,7 @@ void config_parse_load_modules(void)
> +
> + 	i_zero(&mod_set);
> + 	mod_set.abi_version = DOVECOT_ABI_VERSION;
> +-	modules = module_dir_load(CONFIG_MODULE_DIR, NULL, &mod_set);
> ++	modules = module_dir_load("/etc/dovecot/modules/settings", NULL, &mod_set);
> + 	module_dir_init(modules);
> +
> + 	i_array_init(&new_roots, 64);
> +diff --git a/src/config/config-parser.h b/src/config/config-parser.h
> +index e0a0a5bea..32bd76804 100644
> +--- a/src/config/config-parser.h
> ++++ b/src/config/config-parser.h
> +@@ -1,7 +1,7 @@
> + #ifndef CONFIG_PARSER_H
> + #define CONFIG_PARSER_H
> +
> +-#define CONFIG_MODULE_DIR MODULEDIR"/settings"
> ++#define CONFIG_MODULE_DIR "/etc/dovecot/modules/settings"
> +
> + #define IS_WHITE(c) ((c) == ' ' || (c) == '\t')
> +
> +diff --git a/src/dict/main.c b/src/dict/main.c
> +index 722ed025f..4ed12ae5e 100644
> +--- a/src/dict/main.c
> ++++ b/src/dict/main.c
> +@@ -104,7 +104,7 @@ static void main_init(void)
> + 	mod_set.abi_version = DOVECOT_ABI_VERSION;
> + 	mod_set.require_init_funcs = TRUE;
> +
> +-	modules = module_dir_load(DICT_MODULE_DIR, NULL, &mod_set);
> ++	modules = module_dir_load("/etc/dovecot/modules/dict", NULL, &mod_set);
> + 	module_dir_init(modules);
> +
> + 	/* Register only after loading modules. They may contain SQL drivers,
> +diff --git a/src/doveadm/doveadm-util.c b/src/doveadm/doveadm-util.c
> +index a65ef7f72..c19eba06c 100644
> +--- a/src/doveadm/doveadm-util.c
> ++++ b/src/doveadm/doveadm-util.c
> +@@ -33,7 +33,7 @@ void doveadm_load_modules(void)
> + 	mod_set.debug = doveadm_debug;
> + 	mod_set.ignore_dlopen_errors = TRUE;
> +
> +-	modules = module_dir_load_missing(modules, DOVEADM_MODULEDIR,
> ++	modules = module_dir_load_missing(modules, "/etc/dovecot/modules/doveadm",
> + 					  NULL, &mod_set);
> + 	module_dir_init(modules);
> + }
> +@@ -58,7 +58,7 @@ bool doveadm_has_unloaded_plugin(const char *name)
> + 			return FALSE;
> + 	}
> +
> +-	dir = opendir(DOVEADM_MODULEDIR);
> ++	dir = opendir("/etc/dovecot/modules/doveadm");
> + 	if (dir == NULL)
> + 		return FALSE;
> +
> +diff --git a/src/lib-fs/fs-api.c b/src/lib-fs/fs-api.c
> +index a939f612d..846cf86e6 100644
> +--- a/src/lib-fs/fs-api.c
> ++++ b/src/lib-fs/fs-api.c
> +@@ -114,7 +114,7 @@ static void fs_class_try_load_plugin(const char *driver)
> + 	mod_set.abi_version = DOVECOT_ABI_VERSION;
> + 	mod_set.ignore_missing = TRUE;
> +
> +-	fs_modules = module_dir_load_missing(fs_modules, MODULE_DIR,
> ++	fs_modules = module_dir_load_missing(fs_modules, "/etc/dovecot/modules",
> + 					     module_name, &mod_set);
> + 	module_dir_init(fs_modules);
> +
> +diff --git a/src/lib-ssl-iostream/iostream-ssl.c b/src/lib-ssl-iostream/iostream-ssl.c
> +index f62c80d37..900ab46c4 100644
> +--- a/src/lib-ssl-iostream/iostream-ssl.c
> ++++ b/src/lib-ssl-iostream/iostream-ssl.c
> +@@ -54,8 +54,8 @@ int ssl_module_load(const char **error_r)
> + 	mod_set.abi_version = DOVECOT_ABI_VERSION;
> + 	mod_set.setting_name = "<built-in lib-ssl-iostream lookup>";
> + 	mod_set.require_init_funcs = TRUE;
> +-	ssl_module = module_dir_load(MODULE_DIR, plugin_name, &mod_set);
> +-	if (module_dir_try_load_missing(&ssl_module, MODULE_DIR, plugin_name,
> ++	ssl_module = module_dir_load("/etc/dovecot/modules", plugin_name, &mod_set);
> ++	if (module_dir_try_load_missing(&ssl_module, "/etc/dovecot/modules", plugin_name,
> + 					&mod_set, error_r) < 0)
> + 		return -1;
> + 	module_dir_init(ssl_module);
> +diff --git a/src/lib-storage/mail-storage-settings.c b/src/lib-storage/mail-storage-settings.c
> +index b314b529c..705509456 100644
> +--- a/src/lib-storage/mail-storage-settings.c
> ++++ b/src/lib-storage/mail-storage-settings.c
> +@@ -337,7 +337,7 @@ static const struct mail_user_settings mail_user_default_settings = {
> + 	.last_valid_gid = 0,
> +
> + 	.mail_plugins = "",
> +-	.mail_plugin_dir = MODULEDIR,
> ++	.mail_plugin_dir = "/etc/dovecot/modules",
> +
> + 	.mail_log_prefix = "%s(%u)<%{pid}><%{session}>: ",
> +
> +--
> +2.27.0
> -- 
> 2.27.0
> 
> 
> 
> 

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Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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