Make it easier to ignore multiple packages.

This makes --ignore and --ignoregroup able to accept multiple
packages/groups by separating each with a comma.

For instance: pacman -Su --ignore kernel26,udev,glibc

This was requested in the comments of FS#8054.

Signed-off-by: Nathan Jones <nathanj@insightbb.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

doc/pacman.8.txt

@@ -267,11 +267,13 @@ Sync Options[[SO]]
 
 *\--ignore* <'package'>::
 	Directs pacman to ignore upgrades of package even if there is one
-	available.
+	available. Multiple packages can be specified by separating them
+	with a comma.
 
 *\--ignoregroup* <'group'>::
 	Directs pacman to ignore upgrades of all packages in 'group' even if
-	there is one available.
+	there is one available. Multiple groups can be specified by
+	separating them with a comma.
 
 
 Handling Config Files[[HCF]]

src/pacman/pacman.c

@@ -315,6 +315,8 @@ static int parseargs(int argc, char *argv[])
 	};
 
 	while((opt = getopt_long(argc, argv, "ARUFQSTr:b:vkhscVfmnoldepituwygz", opts, &option_index))) {
+		alpm_list_t *list = NULL, *item = NULL; /* lists for splitting strings */
+
 		if(opt < 0) {
 			break;
 		}
@@ -327,7 +329,13 @@ static int parseargs(int argc, char *argv[])
 				}
 				config->configfile = strndup(optarg, PATH_MAX);
 				break;
-			case 1002: alpm_option_add_ignorepkg(strdup(optarg)); break;
+			case 1002:
+				list = strsplit(optarg, ',');
+				for(item = list; item; item = alpm_list_next(item)) {
+					alpm_option_add_ignorepkg((char *)alpm_list_getdata(item));
+				}
+				FREELIST(list);
+				break;
 			case 1003:
 				/* debug levels are made more 'human readable' than using a raw logmask
 				 * here, error and warning are set in config_new, though perhaps a
@@ -371,7 +379,13 @@ static int parseargs(int argc, char *argv[])
 				}
 				config->have_logfile = 1;
 				break;
-			case 1010: alpm_option_add_ignoregrp(strdup(optarg)); break;
+			case 1010:
+				list = strsplit(optarg, ',');
+				for(item = list; item; item = alpm_list_next(item)) {
+					alpm_option_add_ignoregrp((char *)alpm_list_getdata(item));
+				}
+				FREELIST(list);
+				break;
 			case 'A': config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_ADD); break;
 			case 'F':
 				config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_UPGRADE);

src/pacman/util.c

@@ -293,6 +293,40 @@ char *strreplace(const char *str, const char *needle, const char *replace)
 	return newstr;
 }
 
+/** Splits a string into a list of strings using the chosen character as
+ * a delimiter.
+ *
+ * @param str the string to split
+ * @param splitchar the character to split at
+ *
+ * @return a list containing the duplicated strings
+ */
+alpm_list_t *strsplit(const char *str, const char splitchar)
+{
+	alpm_list_t *list = NULL;
+	const char *prev = str;
+	char *dup = NULL;
+
+	while((str = strchr(str, splitchar))) {
+		dup = strndup(prev, str - prev);
+		if(dup == NULL) {
+			return(NULL);
+		}
+		list = alpm_list_add(list, dup);
+
+		str++;
+		prev = str;
+	}
+
+	dup = strdup(prev);
+	if(dup == NULL) {
+		return(NULL);
+	}
+	list = alpm_list_add(list, strdup(prev));
+
+	return(list);
+}
+
 void list_display(const char *title, const alpm_list_t *list)
 {
 	const alpm_list_t *i;

src/pacman/util.h

@@ -46,6 +46,7 @@ void indentprint(const char *str, int indent);
 char *strtoupper(char *str);
 char *strtrim(char *str);
 char *strreplace(const char *str, const char *needle, const char *replace);
+alpm_list_t *strsplit(const char *str, const char splitchar);
 void list_display(const char *title, const alpm_list_t *list);
 void display_targets(const alpm_list_t *syncpkgs, pmdb_t *db_local);
 int yesno(char *fmt, ...);