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tar: implement --no-recursion

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function                                             old     new   delta
tar_longopts                                         259     274     +15
.rodata                                             5757    5772     +15
tar_main                                            1038    1052     +14
writeTarFile                                         362     353      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 44/-9)              Total: 35 bytes
   text	   data	    bss	    dec	    hex	filename
  81457	   1706	   8344	  91507	  16573	busybox_old
  81477	   1706	   8344	  91527	  16587	busybox_unstripped

Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Natanael Copa 2012-04-24 17:06:19 +02:00 committed by Denys Vlasenko
parent b6beada5a1
commit 0446104137
1 changed files with 12 additions and 7 deletions
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19
archival/tar.c
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@ -60,8 +60,8 @@
#if !ENABLE_FEATURE_SEAMLESS_GZ && !ENABLE_FEATURE_SEAMLESS_BZ2
/* Do not pass gzip flag to writeTarFile() */
#define writeTarFile(tar_fd, verboseFlag, dereferenceFlag, include, exclude, gzip) \
writeTarFile(tar_fd, verboseFlag, dereferenceFlag, include, exclude)
#define writeTarFile(tar_fd, verboseFlag, recurseFlags, include, exclude, gzip) \
writeTarFile(tar_fd, verboseFlag, recurseFlags, include, exclude)
#endif
@ -598,7 +598,7 @@ static void NOINLINE vfork_compressor(int tar_fd, int gzip)
/* gcc 4.2.1 inlines it, making code bigger */
static NOINLINE int writeTarFile(int tar_fd, int verboseFlag,
int dereferenceFlag, const llist_t *include,
int recurseFlags, const llist_t *include,
const llist_t *exclude, int gzip)
{
int errorFlag = FALSE;
@ -621,8 +621,7 @@ static NOINLINE int writeTarFile(int tar_fd, int verboseFlag,
/* Read the directory/files and iterate over them one at a time */
while (include) {
if (!recursive_action(include->data, ACTION_RECURSE |
(dereferenceFlag ? ACTION_FOLLOWLINKS : 0),
if (!recursive_action(include->data, recurseFlags,
writeFileToTarball, writeFileToTarball, &tbInfo, 0)
) {
errorFlag = TRUE;
@ -662,7 +661,7 @@ static NOINLINE int writeTarFile(int tar_fd, int verboseFlag,
}
#else
int writeTarFile(int tar_fd, int verboseFlag,
int dereferenceFlag, const llist_t *include,
int recurseFlags, const llist_t *include,
const llist_t *exclude, int gzip);
#endif /* FEATURE_TAR_CREATE */
@ -749,6 +748,7 @@ static llist_t *append_file_list_to_list(llist_t *list)
// o no-same-owner
// p same-permissions
// k keep-old
// no-recursion
// numeric-owner
// no-same-permissions
// overwrite
@ -768,6 +768,7 @@ enum {
IF_FEATURE_SEAMLESS_Z( OPTBIT_COMPRESS ,) // 16th bit
IF_FEATURE_TAR_NOPRESERVE_TIME(OPTBIT_NOPRESERVE_TIME,)
#if ENABLE_FEATURE_TAR_LONG_OPTIONS
OPTBIT_NORECURSION,
IF_FEATURE_TAR_TO_COMMAND(OPTBIT_2COMMAND ,)
OPTBIT_NUMERIC_OWNER,
OPTBIT_NOPRESERVE_PERM,
@ -791,6 +792,7 @@ enum {
OPT_GZIP = IF_FEATURE_SEAMLESS_GZ( (1 << OPTBIT_GZIP )) + 0, // z
OPT_COMPRESS = IF_FEATURE_SEAMLESS_Z( (1 << OPTBIT_COMPRESS )) + 0, // Z
OPT_NOPRESERVE_TIME = IF_FEATURE_TAR_NOPRESERVE_TIME((1 << OPTBIT_NOPRESERVE_TIME)) + 0, // m
OPT_NORECURSION = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NORECURSION )) + 0, // no-recursion
OPT_2COMMAND = IF_FEATURE_TAR_TO_COMMAND( (1 << OPTBIT_2COMMAND )) + 0, // to-command
OPT_NUMERIC_OWNER = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NUMERIC_OWNER )) + 0, // numeric-owner
OPT_NOPRESERVE_PERM = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NOPRESERVE_PERM)) + 0, // no-same-permissions
@ -835,6 +837,7 @@ static const char tar_longopts[] ALIGN1 =
# if ENABLE_FEATURE_TAR_NOPRESERVE_TIME
"touch\0" No_argument "m"
# endif
"no-recursion\0" No_argument "\xfa"
# if ENABLE_FEATURE_TAR_TO_COMMAND
"to-command\0" Required_argument "\xfb"
# endif
@ -1050,7 +1053,9 @@ int tar_main(int argc UNUSED_PARAM, char **argv)
zipMode = 2;
#endif
/* NB: writeTarFile() closes tar_handle->src_fd */
return writeTarFile(tar_handle->src_fd, verboseFlag, opt & OPT_DEREFERENCE,
return writeTarFile(tar_handle->src_fd, verboseFlag,
(opt & OPT_DEREFERENCE ? ACTION_FOLLOWLINKS : 0)
| (opt & OPT_NORECURSION ? 0 : ACTION_RECURSE),
tar_handle->accept,
tar_handle->reject, zipMode);
}