Switch pmgrp_t to dynamic allocation, general group cleanup

Signed-off-by: Dan McGee <dan@archlinux.org>

4 files changed, 33 insertions, 39 deletions

diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index 0a8812ad..25eb88c5 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -238,7 +238,7 @@ const char *alpm_delta_get_md5sum(pmdelta_t *delta);
  * Groups
  */
 const char *alpm_grp_get_name(const pmgrp_t *grp);
-const alpm_list_t *alpm_grp_get_pkgs(const pmgrp_t *grp);
+alpm_list_t *alpm_grp_get_pkgs(const pmgrp_t *grp);
 
 /*
  * Sync
diff --git a/lib/libalpm/cache.c b/lib/libalpm/cache.c
index 09fa74c2..7fa24052 100644
--- a/lib/libalpm/cache.c
+++ b/lib/libalpm/cache.c
@@ -199,33 +199,29 @@ int _alpm_db_load_grpcache(pmdb_t *db)
 		pmpkg_t *pkg = lp->data;
 
 		for(i = alpm_pkg_get_groups(pkg); i; i = i->next) {
-			if(!alpm_list_find_str(db->grpcache, i->data)) {
-				pmgrp_t *grp = _alpm_grp_new();
-
-				strncpy(grp->name, i->data, GRP_NAME_LEN);
-				grp->name[GRP_NAME_LEN-1] = '\0';
-				grp->packages = alpm_list_add_sorted(grp->packages,
-																						 /* gross signature forces us to
-																							* discard const */
-																						 (void*)alpm_pkg_get_name(pkg),
-																						 _alpm_str_cmp);
-				db->grpcache = alpm_list_add_sorted(db->grpcache, grp, _alpm_grp_cmp);
-			} else {
-				alpm_list_t *j;
-
-				for(j = db->grpcache; j; j = j->next) {
-					pmgrp_t *grp = j->data;
-
-					if(strcmp(grp->name, i->data) == 0) {
-						const char *pkgname = alpm_pkg_get_name(pkg);
-						if(!alpm_list_find_str(grp->packages, pkgname)) {
-							grp->packages = alpm_list_add_sorted(grp->packages,
-							                                     (void*)pkgname,
-																									 _alpm_str_cmp);
-						}
-					}
+			const char *grpname = i->data;
+			alpm_list_t *j;
+			pmgrp_t *grp = NULL;
+			int found = 0;
+
+			/* first look through the group cache for a group with this name */
+			for(j = db->grpcache; j; j = j->next) {
+				grp = j->data;
+
+				if(strcmp(grp->name, grpname) == 0
+						&& !alpm_list_find_ptr(grp->packages, pkg)) {
+					grp->packages = alpm_list_add(grp->packages, pkg);
+					found = 1;
+					break;
 				}
 			}
+			if(found) {
+				continue;
+			}
+			/* we didn't find the group, so create a new one with this name */
+			grp = _alpm_grp_new(grpname);
+			grp->packages = alpm_list_add(grp->packages, pkg);
+			db->grpcache = alpm_list_add(db->grpcache, grp);
 		}
 	}
 
@@ -243,10 +239,6 @@ void _alpm_db_free_grpcache(pmdb_t *db)
 	}
 
 	for(lg = db->grpcache; lg; lg = lg->next) {
-		pmgrp_t *grp = lg->data;
-
-		alpm_list_free(grp->packages);
-		grp->packages = NULL;
 		_alpm_grp_free(lg->data);
 		lg->data = NULL;
 	}
diff --git a/lib/libalpm/group.c b/lib/libalpm/group.c
index 050bcbd5..e9e7d008 100644
--- a/lib/libalpm/group.c
+++ b/lib/libalpm/group.c
@@ -31,13 +31,14 @@
 #include "log.h"
 #include "alpm.h"
 
-pmgrp_t *_alpm_grp_new()
+pmgrp_t *_alpm_grp_new(const char *name)
 {
 	pmgrp_t* grp;
 
 	ALPM_LOG_FUNC;
 
 	CALLOC(grp, 1, sizeof(pmgrp_t), RET_ERR(PM_ERR_MEMORY, NULL));
+	STRDUP(grp->name, name, RET_ERR(PM_ERR_MEMORY, NULL));
 
 	return(grp);
 }
@@ -50,7 +51,9 @@ void _alpm_grp_free(pmgrp_t *grp)
 		return;
 	}
 
-	FREELIST(grp->packages);
+	FREE(grp->name);
+	/* do NOT free the contents of the list, just the nodes */
+	alpm_list_free(grp->packages);
 	FREE(grp);
 }
 
@@ -74,7 +77,7 @@ const char SYMEXPORT *alpm_grp_get_name(const pmgrp_t *grp)
 	return grp->name;
 }
 
-const alpm_list_t SYMEXPORT *alpm_grp_get_pkgs(const pmgrp_t *grp)
+alpm_list_t SYMEXPORT *alpm_grp_get_pkgs(const pmgrp_t *grp)
 {
 	ALPM_LOG_FUNC;
 
diff --git a/lib/libalpm/group.h b/lib/libalpm/group.h
index 88fc8b32..5f8fdec4 100644
--- a/lib/libalpm/group.h
+++ b/lib/libalpm/group.h
@@ -19,17 +19,16 @@
 #ifndef _ALPM_GROUP_H
 #define _ALPM_GROUP_H
 
-/* Groups */
-#define GRP_NAME_LEN 256
-
 #include "alpm.h"
 
 struct __pmgrp_t {
-	char name[GRP_NAME_LEN];
-	alpm_list_t *packages; /* List of strings */
+	/** group name */
+	char *name;
+	/** list of pmpkg_t packages */
+	alpm_list_t *packages;
 };
 
-pmgrp_t *_alpm_grp_new(void);
+pmgrp_t *_alpm_grp_new(const char *name);
 void _alpm_grp_free(pmgrp_t *grp);
 int _alpm_grp_cmp(const void *g1, const void *g2);