Document auto-detection of compressed archive formats.

[chaz/tar] / src / tar.c

diff --git a/src/tar.c b/src/tar.c
index ff3ebc44371602ca69a4e7ce81decbe1a573507d..56a8e730656f75b5355741e9b381e653980ceb72 100644 (file)
--- a/src/tar.c
+++ b/src/tar.c
@@ -187,6 +187,7 @@ enum
   CHECK_LINKS_OPTION,
   DELETE_OPTION,
   EXCLUDE_OPTION,
+  EXCLUDE_CACHES_OPTION,
   FORCE_LOCAL_OPTION,
   GROUP_OPTION,
   IGNORE_CASE_OPTION,
@@ -408,13 +409,17 @@ static struct argp_option options[] = {
    N_("create archive of the given format."), 61 },
 
   {NULL, 0, NULL, 0, N_("FORMAT is one of the following:"), 62 },
-  {"  v7", 0, NULL, OPTION_DOC, N_("old V7 tar format"), 63},
-  {"  oldgnu", 0, NULL, OPTION_DOC, N_("GNU format as per tar <= 1.12"), 63},
-  {"  gnu", 0, NULL, OPTION_DOC, N_("GNU tar 1.13.x format"), 63},
-  {"  ustar", 0, NULL, OPTION_DOC, N_("POSIX 1003.1-1988 (ustar) format"), 63 },
-  {"  pax", 0, NULL, OPTION_DOC, N_("POSIX 1003.1-2001 (pax) format"), 63 },
-  {"  posix", 0, NULL, OPTION_DOC, N_("Same as pax"), 63 },
-
+  {"  v7", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, N_("old V7 tar format"), 63},
+  {"  oldgnu", 0, NULL, OPTION_DOC|OPTION_NO_TRANS,
+   N_("GNU format as per tar <= 1.12"), 63},
+  {"  gnu", 0, NULL, OPTION_DOC|OPTION_NO_TRANS,
+   N_("GNU tar 1.13.x format"), 63},
+  {"  ustar", 0, NULL, OPTION_DOC|OPTION_NO_TRANS,
+   N_("POSIX 1003.1-1988 (ustar) format"), 63 },
+  {"  pax", 0, NULL, OPTION_DOC|OPTION_NO_TRANS,
+   N_("POSIX 1003.1-2001 (pax) format"), 63 },
+  {"  posix", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, N_("Same as pax"), 63 },
+  
   {"old-archive", OLD_ARCHIVE_OPTION, 0, 0, /* FIXME */
    N_("same as --format=v7"), 68 },
   {"portability", 0, 0, OPTION_ALIAS, NULL, 68 },
@@ -449,6 +454,8 @@ static struct argp_option options[] = {
    N_("exclude files, given as a PATTERN"), 71 },
   {"exclude-from", 'X', N_("FILE"), 0,
    N_("exclude patterns listed in FILE"), 71 },
+  {"exclude-caches", EXCLUDE_CACHES_OPTION, 0, 0,
+   N_("exclude directories containing a cache tag"), 71 },
   {"ignore-case", IGNORE_CASE_OPTION, 0, 0,
    N_("exclusion ignores case"), 71 },
   {"anchored", ANCHORED_OPTION, 0, 0,
@@ -933,6 +940,10 @@ parse_opt(int key, char *arg, struct argp_state *state)
       add_exclude (excluded, arg, args->exclude_options | recursion_option);
       break;
       
+    case EXCLUDE_CACHES_OPTION:
+      exclude_caches_option = true;
+      break;
+
     case FORCE_LOCAL_OPTION:
       force_local_option = true;
       break;
@@ -1406,7 +1417,7 @@ decode_options (int argc, char **argv)
       else
        {
          /* UNIX98 compatibility */
-         same_owner_option = 1;
+         same_owner_option = -1;
        }
     }