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/*
* hook.c
*
* Copyright (c) 2015 Pacman Development Team <pacman-dev@archlinux.org>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include "handle.h"
#include "hook.h"
#include "log.h"
#include "util.h"
enum _alpm_hook_op_t {
ALPM_HOOK_OP_INSTALL = (1 << 0),
ALPM_HOOK_OP_UPGRADE = (1 << 1),
ALPM_HOOK_OP_REMOVE = (1 << 2),
};
enum _alpm_trigger_type_t {
ALPM_HOOK_TYPE_PACKAGE = 1,
ALPM_HOOK_TYPE_FILE,
};
struct _alpm_trigger_t {
enum _alpm_hook_op_t op;
enum _alpm_trigger_type_t type;
alpm_list_t *targets;
};
struct _alpm_hook_t {
char *name;
alpm_list_t *triggers;
alpm_list_t *depends;
char *cmd;
enum _alpm_hook_when_t when;
int abort_on_fail;
};
struct _alpm_hook_cb_ctx {
alpm_handle_t *handle;
struct _alpm_hook_t *hook;
};
static void _alpm_trigger_free(struct _alpm_trigger_t *trigger)
{
if(trigger) {
FREELIST(trigger->targets);
free(trigger);
}
}
static void _alpm_hook_free(struct _alpm_hook_t *hook)
{
if(hook) {
free(hook->name);
free(hook->cmd);
alpm_list_free_inner(hook->triggers, (alpm_list_fn_free) _alpm_trigger_free);
alpm_list_free(hook->triggers);
FREELIST(hook->depends);
free(hook);
}
}
static int _alpm_hook_parse_cb(const char *file, int line,
const char *section, char *key, char *value, void *data)
{
struct _alpm_hook_cb_ctx *ctx = data;
alpm_handle_t *handle = ctx->handle;
struct _alpm_hook_t *hook = ctx->hook;
#define error(...) _alpm_log(handle, ALPM_LOG_ERROR, __VA_ARGS__); return 1;
if(!section && !key) {
error(_("error while reading hook %s: %s\n"), file, strerror(errno));
} else if(!section) {
error(_("hook %s line %d: invalid option %s\n"), file, line, key);
} else if(!key) {
/* beginning a new section */
if(strcmp(section, "Trigger") == 0) {
struct _alpm_trigger_t *t;
CALLOC(t, sizeof(struct _alpm_trigger_t), 1, return 1);
hook->triggers = alpm_list_add(hook->triggers, t);
} else if(strcmp(section, "Action") == 0) {
/* no special processing required */
} else {
error(_("hook %s line %d: invalid section %s\n"), file, line, section);
}
} else if(strcmp(section, "Trigger") == 0) {
struct _alpm_trigger_t *t = hook->triggers->prev->data;
if(strcmp(key, "Operation") == 0) {
if(strcmp(value, "Install") == 0) {
t->op |= ALPM_HOOK_OP_INSTALL;
} else if(strcmp(value, "Upgrade") == 0) {
t->op |= ALPM_HOOK_OP_UPGRADE;
} else if(strcmp(value, "Remove") == 0) {
t->op |= ALPM_HOOK_OP_REMOVE;
} else {
error(_("hook %s line %d: invalid value %s\n"), file, line, value);
}
} else if(strcmp(key, "Type") == 0) {
if(strcmp(value, "Package") == 0) {
t->type = ALPM_HOOK_TYPE_PACKAGE;
} else if(strcmp(value, "File") == 0) {
t->type = ALPM_HOOK_TYPE_FILE;
} else {
error(_("hook %s line %d: invalid value %s\n"), file, line, value);
}
} else if(strcmp(key, "Target") == 0) {
char *val;
STRDUP(val, value, return 1);
t->targets = alpm_list_add(t->targets, val);
} else {
error(_("hook %s line %d: invalid option %s\n"), file, line, key);
}
} else if(strcmp(section, "Action") == 0) {
if(strcmp(key, "When") == 0) {
if(strcmp(value, "PreTransaction") == 0) {
hook->when = ALPM_HOOK_PRE_TRANSACTION;
} else if(strcmp(value, "PostTransaction") == 0) {
hook->when = ALPM_HOOK_POST_TRANSACTION;
} else {
error(_("hook %s line %d: invalid value %s\n"), file, line, value);
}
} else if(strcmp(key, "Depends") == 0) {
char *val;
STRDUP(val, value, return 1);
hook->depends = alpm_list_add(hook->depends, val);
} else if(strcmp(key, "AbortOnFail") == 0) {
hook->abort_on_fail = 1;
} else if(strcmp(key, "Exec") == 0) {
STRDUP(hook->cmd, value, return 1);
} else {
error(_("hook %s line %d: invalid option %s\n"), file, line, value);
}
}
#undef error
return 0;
}
/* vim: set noet: */
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