Signed-off-by: Andrew Gregory <[email protected]> --- lib/libalpm/hook.c | 156 +++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/libalpm/hook.h | 32 +++++++++++ 2 files changed, 188 insertions(+) create mode 100644 lib/libalpm/hook.c create mode 100644 lib/libalpm/hook.h
diff --git a/lib/libalpm/hook.c b/lib/libalpm/hook.c new file mode 100644 index 0000000..c4f232b --- /dev/null +++ b/lib/libalpm/hook.c @@ -0,0 +1,156 @@ +/* + * hook.c + * + * Copyright (c) 2015 Pacman Development Team <[email protected]> + * + * 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: */ diff --git a/lib/libalpm/hook.h b/lib/libalpm/hook.h new file mode 100644 index 0000000..0692176 --- /dev/null +++ b/lib/libalpm/hook.h @@ -0,0 +1,32 @@ +/* + * hook.h + * + * Copyright (c) 2015 Pacman Development Team <[email protected]> + * + * 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/>. + */ + +#ifndef _ALPM_HOOK_H +#define _ALPM_HOOK_H + +#include "alpm.h" + +enum _alpm_hook_when_t { + ALPM_HOOK_PRE_TRANSACTION = 1, + ALPM_HOOK_POST_TRANSACTION +}; + +#endif /* _ALPM_HOOK_H */ + +/* vim: set noet: */ -- 2.6.1
