install: add new installer implementation

This new installer will replace the current code of "systemctl enable"
but also be available via D-Bus. It adds a couple of new features:

- Mask/Unmask calls
- Reenable call
- Preset call
- Support for enabling units temporarily (i.e. in /run/systemd instead
  of /etc/systemd)
- Enumeration of installed units
- Support for out-of-search-path units

systemctl and D-Bus are not hooked up with this yet

1 files changed, 86 insertions, 0 deletions

diff --git a/src/install.h b/src/install.h
new file mode 100644
index 0000000000..a3eacf51ce
--- /dev/null
+++ b/src/install.h
@@ -0,0 +1,86 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef fooinstallhfoo
+#define fooinstallhfoo
+
+/***
+  This file is part of systemd.
+
+  Copyright 2011 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "hashmap.h"
+
+typedef enum UnitFileScope {
+        UNIT_FILE_SYSTEM,
+        UNIT_FILE_GLOBAL,
+        UNIT_FILE_USER,
+        _UNIT_FILE_SCOPE_MAX,
+        _UNIT_FILE_SCOPE_INVALID = -1
+} UnitFileScope;
+
+typedef enum UnitFileState {
+        UNIT_FILE_ENABLED,
+        UNIT_FILE_ENABLED_RUNTIME,
+        UNIT_FILE_LINKED,
+        UNIT_FILE_LINKED_RUNTIME,
+        UNIT_FILE_MASKED,
+        UNIT_FILE_MASKED_RUNTIME,
+        UNIT_FILE_STATIC,
+        UNIT_FILE_DISABLED,
+        _UNIT_FILE_STATE_MAX,
+        _UNIT_FILE_STATE_INVALID = -1
+} UnitFileState;
+
+typedef enum UnitFileChangeType {
+        UNIT_FILE_SYMLINK,
+        UNIT_FILE_UNLINK,
+        _UNIT_FILE_CHANGE_TYPE_MAX,
+        _UNIT_FILE_CHANGE_TYPE_INVALID = -1
+} UnitFileChangeType;
+
+typedef struct UnitFileChange {
+        UnitFileChangeType type;
+        char *path;
+        char *source;
+} UnitFileChange;
+
+typedef struct UnitFileList {
+        char *path;
+        UnitFileState state;
+} UnitFileList;
+
+int unit_file_enable(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], bool force, UnitFileChange **changes, unsigned *n_changes);
+int unit_file_disable(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], UnitFileChange **changes, unsigned *n_changes);
+int unit_file_reenable(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], bool force, UnitFileChange **changes, unsigned *n_changes);
+int unit_file_link(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], bool force, UnitFileChange **changes, unsigned *n_changes);
+int unit_file_preset(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], bool force, UnitFileChange **changes, unsigned *n_changes);
+int unit_file_mask(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], bool force, UnitFileChange **changes, unsigned *n_changes);
+int unit_file_unmask(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], UnitFileChange **changes, unsigned *n_changes);
+
+UnitFileState unit_file_get_state(UnitFileScope scope, const char *root_dir, const char *filename);
+
+int unit_file_get_list(UnitFileScope scope, const char *root_dir, Hashmap *h);
+
+void unit_file_list_free(Hashmap *h);
+void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes);
+
+int unit_file_query_preset(UnitFileScope scope, const char *name);
+
+const char *unit_file_state_to_string(UnitFileState s);
+UnitFileState unit_file_state_from_string(const char *s);
+
+#endif