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Restore extra help output.

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* src/tar.c (tar_list_quoting_styles): Change first argument to
struct obstack.
(format_default_settings): New function.
(show_default_settings)
(show_default_settings_fs): Removed.
(tar_help): Removed.
(tar_help_filter): New function.
(argp): Set help_filter.
(parse_opt): Fix error message.
This commit is contained in:
Sergey Poznyakoff
2009-09-16 11:52:34 +03:00
parent dccb3806a6
commit 92773d860f
2 changed files with 185 additions and 181 deletions
Download Patch File Download Diff File Expand all files Collapse all files
gnulib.modules
+1
View File
@@ -5,6 +5,7 @@ alloca
argmatch
argp
argp-version-etc
asprintf
backupfile
canonicalize
closeout
src/tar.c
+184 -181
View File
@@ -220,12 +220,18 @@ subcommand_string (enum subcommand c)
}
void
tar_list_quoting_styles (argp_fmtstream_t fs, char *prefix)
tar_list_quoting_styles (struct obstack *stk, char *prefix)
{
int i;
size_t prefixlen = strlen (prefix);
for (i = 0; quoting_style_args[i]; i++)
argp_fmtstream_printf (fs, "%s%s\n", prefix, quoting_style_args[i]);
{
obstack_grow (stk, prefix, prefixlen);
obstack_grow (stk, quoting_style_args[i],
strlen (quoting_style_args[i]));
obstack_1grow (stk, '\n');
}
}
void
@@ -894,39 +900,29 @@ add_exclude_array (char const * const * fv)
}
static char *
format_default_settings (void)
{
char *s;
asprintf (&s,
"--format=%s -f%s -b%d --quoting-style=%s --rmt-command=%s"
#ifdef REMOTE_SHELL
# define DECL_SHOW_DEFAULT_SETTINGS(stream, printer) \
{ \
printer (stream, \
"--format=%s -f%s -b%d --quoting-style=%s --rmt-command=%s", \
archive_format_string (DEFAULT_ARCHIVE_FORMAT), \
DEFAULT_ARCHIVE, DEFAULT_BLOCKING, \
quoting_style_args[DEFAULT_QUOTING_STYLE], \
DEFAULT_RMT_COMMAND); \
printer (stream, " --rsh-command=%s", REMOTE_SHELL); \
printer (stream, "\n"); \
}
#else
# define DECL_SHOW_DEFAULT_SETTINGS(stream, printer) \
{ \
printer (stream, \
"--format=%s -f%s -b%d --quoting-style=%s --rmt-command=%s", \
archive_format_string (DEFAULT_ARCHIVE_FORMAT), \
DEFAULT_ARCHIVE, DEFAULT_BLOCKING, \
quoting_style_args[DEFAULT_QUOTING_STYLE], \
DEFAULT_RMT_COMMAND); \
printer (stream, "\n"); \
}
" --rsh-command=%s"
#endif
,
archive_format_string (DEFAULT_ARCHIVE_FORMAT),
DEFAULT_ARCHIVE, DEFAULT_BLOCKING,
quoting_style_args[DEFAULT_QUOTING_STYLE],
DEFAULT_RMT_COMMAND,
#ifdef REMOTE_SHELL
REMOTE_SHELL
#endif
);
return s;
}
static void
show_default_settings (FILE *fp)
DECL_SHOW_DEFAULT_SETTINGS(fp, fprintf)
static void
show_default_settings_fs (argp_fmtstream_t fs)
DECL_SHOW_DEFAULT_SETTINGS(fs, argp_fmtstream_printf)
static void
set_subcommand_option (enum subcommand subcommand)
{
@@ -934,7 +930,7 @@ set_subcommand_option (enum subcommand subcommand)
&& subcommand_option != subcommand)
USAGE_ERROR ((0, 0,
_("You may not specify more than one `-Acdtrux' option")));
subcommand_option = subcommand;
}
@@ -944,7 +940,7 @@ set_use_compress_program_option (const char *string)
if (use_compress_program_option
&& strcmp (use_compress_program_option, string) != 0)
USAGE_ERROR ((0, 0, _("Conflicting compression options")));
use_compress_program_option = string;
}
@@ -1096,7 +1092,7 @@ read_name_from_file (FILE *fp, struct obstack *stk, int term)
obstack_1grow (stk, c);
counter++;
}
if (counter == 0 && c != EOF)
return file_list_skip;
@@ -1180,7 +1176,7 @@ update_argv (const char *filename, struct argp_state *state)
if ((fp = fopen (filename, "r")) == NULL)
open_fatal (filename);
}
while ((read_state = read_name_from_file (fp, &argv_stk, term))
!= file_list_end)
{
@@ -1189,18 +1185,18 @@ update_argv (const char *filename, struct argp_state *state)
case file_list_success:
count++;
break;
case file_list_end: /* won't happen, just to pacify gcc */
break;
case file_list_zero:
{
size_t size;
WARNOPT (WARN_FILENAME_WITH_NULS,
(0, 0, N_("%s: file name read contains nul character"),
quotearg_colon (filename)));
/* Prepare new stack contents */
size = obstack_object_size (&argv_stk);
p = obstack_finish (&argv_stk);
@@ -1215,34 +1211,34 @@ update_argv (const char *filename, struct argp_state *state)
term = 0;
break;
}
case file_list_skip:
break;
}
}
if (!is_stdin)
fclose (fp);
if (count == 0)
return;
start = obstack_finish (&argv_stk);
if (term == 0)
for (p = start; *p; p += strlen (p) + 1)
if (p[0] == '-')
count++;
new_argc = state->argc + count;
new_argv = xmalloc (sizeof (state->argv[0]) * (new_argc + 1));
memcpy (new_argv, state->argv, sizeof (state->argv[0]) * (state->argc + 1));
state->argv = new_argv;
memmove (&state->argv[state->next + count], &state->argv[state->next],
(state->argc - state->next + 1) * sizeof (state->argv[0]));
state->argc = new_argc;
for (i = state->next, p = start; *p; p += strlen (p) + 1, i++)
{
if (term == 0 && p[0] == '-')
@@ -1252,26 +1248,29 @@ update_argv (const char *filename, struct argp_state *state)
}
static void
tar_help (struct argp_state *state)
static char *
tar_help_filter (int key, const char *text, void *input)
{
argp_fmtstream_t fs;
state->flags |= ARGP_NO_EXIT;
argp_state_help (state, state->out_stream,
ARGP_HELP_STD_HELP & ~ARGP_HELP_BUG_ADDR);
/* FIXME: use struct uparams.rmargin (from argp-help.c) instead of 79 */
fs = argp_make_fmtstream (state->out_stream, 0, 79, 0);
struct obstack stk;
char *s;
argp_fmtstream_printf (fs, "\n%s\n\n",
_("Valid arguments for --quoting-style options are:"));
tar_list_quoting_styles (fs, " ");
if (key != ARGP_KEY_HELP_EXTRA)
return (char*) text;
argp_fmtstream_puts (fs, _("\n*This* tar defaults to:\n"));
show_default_settings_fs (fs);
argp_fmtstream_putc (fs, '\n');
argp_fmtstream_printf (fs, _("Report bugs to %s.\n"),
argp_program_bug_address);
argp_fmtstream_free (fs);
obstack_init (&stk);
s = _("Valid arguments for the --quoting-style option are:");
obstack_grow (&stk, s, strlen (s));
obstack_grow (&stk, "\n\n", 2);
tar_list_quoting_styles (&stk, " ");
s = _("\n*This* tar defaults to:\n");
obstack_grow (&stk, s, strlen (s));
s = format_default_settings ();
obstack_grow (&stk, s, strlen (s));
obstack_1grow (&stk, '\n');
obstack_1grow (&stk, 0);
s = xstrdup (obstack_finish (&stk));
obstack_free (&stk, NULL);
return s;
}
static error_t
@@ -1286,15 +1285,15 @@ parse_opt (int key, char *arg, struct argp_state *state)
name_add_name (arg, MAKE_INCL_OPTIONS (args));
args->input_files = true;
break;
case 'A':
set_subcommand_option (CAT_SUBCOMMAND);
break;
case 'a':
args->compress_autodetect = true;
break;
case NO_AUTO_COMPRESS_OPTION:
args->compress_autodetect = false;
break;
@@ -1310,65 +1309,65 @@ parse_opt (int key, char *arg, struct argp_state *state)
_("Invalid blocking factor")));
}
break;
case 'B':
/* Try to reblock input records. For reading 4.2BSD pipes. */
/* It would surely make sense to exchange -B and -R, but it seems
that -B has been used for a long while in Sun tar and most
BSD-derived systems. This is a consequence of the block/record
terminology confusion. */
read_full_records_option = true;
break;
case 'c':
set_subcommand_option (CREATE_SUBCOMMAND);
break;
case 'C':
name_add_dir (arg);
break;
case 'd':
set_subcommand_option (DIFF_SUBCOMMAND);
break;
case 'f':
if (archive_names == allocated_archive_names)
archive_name_array = x2nrealloc (archive_name_array,
&allocated_archive_names,
sizeof (archive_name_array[0]));
archive_name_array[archive_names++] = arg;
break;
case 'F':
/* Since -F is only useful with -M, make it implied. Run this
script at the end of each tape. */
info_script_option = arg;
multi_volume_option = true;
break;
case 'g':
listed_incremental_option = arg;
after_date_option = true;
/* Fall through. */
case 'G':
/* We are making an incremental dump (FIXME: are we?); save
directories at the beginning of the archive, and include in each
directory its contents. */
incremental_option = true;
break;
case 'h':
/* Follow symbolic links. */
dereference_option = true;
break;
case HARD_DEREFERENCE_OPTION:
hard_dereference_option = true;
break;
@@ -1377,14 +1376,14 @@ parse_opt (int key, char *arg, struct argp_state *state)
/* Ignore zero blocks (eofs). This can't be the default,
because Unix tar writes two blocks of zeros, then pads out
the record with garbage. */
ignore_zeros_option = true;
break;
case 'j':
set_use_compress_program_option ("bzip2");
break;
case 'J':
set_use_compress_program_option ("xz");
break;
@@ -1393,22 +1392,22 @@ parse_opt (int key, char *arg, struct argp_state *state)
/* Don't replace existing files. */
old_files_option = KEEP_OLD_FILES;
break;
case 'K':
starting_file_option = true;
addname (arg, 0, true, NULL);
break;
case ONE_FILE_SYSTEM_OPTION:
/* When dumping directories, don't dump files/subdirectories
that are on other filesystems. */
one_file_system_option = true;
break;
case 'l':
check_links_option = 1;
break;
case 'L':
{
uintmax_t u;
@@ -1419,7 +1418,7 @@ parse_opt (int key, char *arg, struct argp_state *state)
multi_volume_option = true;
}
break;
case LEVEL_OPTION:
{
char *p;
@@ -1440,23 +1439,23 @@ parse_opt (int key, char *arg, struct argp_state *state)
case 'm':
touch_option = true;
break;
case 'M':
/* Make multivolume archive: when we can't write any more into
the archive, re-open it, and continue writing. */
multi_volume_option = true;
break;
case MTIME_OPTION:
get_date_or_file (args, "--mtime", arg, &mtime_option);
set_mtime_option = true;
break;
case 'n':
seek_option = 1;
break;
case NO_SEEK_OPTION:
seek_option = 0;
break;
@@ -1464,56 +1463,56 @@ parse_opt (int key, char *arg, struct argp_state *state)
case 'N':
after_date_option = true;
/* Fall through. */
case NEWER_MTIME_OPTION:
if (NEWER_OPTION_INITIALIZED (newer_mtime_option))
USAGE_ERROR ((0, 0, _("More than one threshold date")));
get_date_or_file (args,
key == NEWER_MTIME_OPTION ? "--newer-mtime"
: "--after-date", arg, &newer_mtime_option);
: "--after-date", arg, &newer_mtime_option);
break;
case 'o':
args->o_option = true;
break;
case 'O':
to_stdout_option = true;
break;
case 'p':
same_permissions_option = true;
break;
case 'P':
absolute_names_option = true;
break;
case 'r':
set_subcommand_option (APPEND_SUBCOMMAND);
break;
case 'R':
/* Print block numbers for debugging bad tar archives. */
/* It would surely make sense to exchange -B and -R, but it seems
that -B has been used for a long while in Sun tar and most
BSD-derived systems. This is a consequence of the block/record
terminology confusion. */
block_number_option = true;
break;
case 's':
/* Names to extract are sorted. */
same_order_option = true;
break;
case 'S':
sparse_option = true;
break;
case SPARSE_VERSION_OPTION:
sparse_option = true;
{
@@ -1529,17 +1528,17 @@ parse_opt (int key, char *arg, struct argp_state *state)
}
}
break;
case 't':
set_subcommand_option (LIST_SUBCOMMAND);
verbose_option++;
break;
case TEST_LABEL_OPTION:
set_subcommand_option (LIST_SUBCOMMAND);
test_label_option = true;
break;
case 'T':
update_argv (arg, state);
/* Indicate we've been given -T option. This is for backward
@@ -1547,40 +1546,40 @@ parse_opt (int key, char *arg, struct argp_state *state)
succeed */
files_from_option = true;
break;
case 'u':
set_subcommand_option (UPDATE_SUBCOMMAND);
break;
case 'U':
old_files_option = UNLINK_FIRST_OLD_FILES;
break;
case UTC_OPTION:
utc_option = true;
break;
case 'v':
verbose_option++;
warning_option |= WARN_VERBOSE_WARNINGS;
break;
case 'V':
volume_label_option = arg;
break;
case 'w':
interactive_option = true;
break;
case 'W':
verify_option = true;
break;
case 'x':
set_subcommand_option (EXTRACT_SUBCOMMAND);
break;
case 'X':
if (add_exclude_file (add_exclude, excluded, arg,
MAKE_EXCL_OPTIONS (args), '\n')
@@ -1590,19 +1589,19 @@ parse_opt (int key, char *arg, struct argp_state *state)
FATAL_ERROR ((0, e, "%s", quotearg_colon (arg)));
}
break;
case 'z':
set_use_compress_program_option ("gzip");
break;
case 'Z':
set_use_compress_program_option ("compress");
break;
case ANCHORED_OPTION:
args->matching_flags |= EXCLUDE_ANCHORED;
break;
case ATIME_PRESERVE_OPTION:
atime_preserve_option =
(arg
@@ -1614,7 +1613,7 @@ parse_opt (int key, char *arg, struct argp_state *state)
_("--atime-preserve='system' is not supported"
" on this platform")));
break;
case CHECK_DEVICE_OPTION:
check_device_option = true;
break;
@@ -1627,7 +1626,7 @@ parse_opt (int key, char *arg, struct argp_state *state)
if (arg)
{
char *p;
if (*arg == '.')
{
checkpoint_compile_action (".");
@@ -1641,7 +1640,7 @@ parse_opt (int key, char *arg, struct argp_state *state)
else
checkpoint_option = DEFAULT_CHECKPOINT;
break;
case CHECKPOINT_ACTION_OPTION:
checkpoint_compile_action (arg);
break;
@@ -1651,19 +1650,19 @@ parse_opt (int key, char *arg, struct argp_state *state)
if (arg)
args->version_control_string = arg;
break;
case DELAY_DIRECTORY_RESTORE_OPTION:
delay_directory_restore_option = true;
break;
case NO_DELAY_DIRECTORY_RESTORE_OPTION:
delay_directory_restore_option = false;
break;
case DELETE_OPTION:
set_subcommand_option (DELETE_SUBCOMMAND);
break;
case EXCLUDE_BACKUPS_OPTION:
add_exclude_array (backup_file_table);
break;
@@ -1671,34 +1670,34 @@ parse_opt (int key, char *arg, struct argp_state *state)
case EXCLUDE_OPTION:
add_exclude (excluded, arg, MAKE_EXCL_OPTIONS (args));
break;
case EXCLUDE_CACHES_OPTION:
add_exclusion_tag ("CACHEDIR.TAG", exclusion_tag_contents,
cachedir_file_p);
break;
case EXCLUDE_CACHES_UNDER_OPTION:
add_exclusion_tag ("CACHEDIR.TAG", exclusion_tag_under,
cachedir_file_p);
break;
case EXCLUDE_CACHES_ALL_OPTION:
add_exclusion_tag ("CACHEDIR.TAG", exclusion_tag_all,
cachedir_file_p);
break;
case EXCLUDE_TAG_OPTION:
add_exclusion_tag (arg, exclusion_tag_contents, NULL);
break;
case EXCLUDE_TAG_UNDER_OPTION:
add_exclusion_tag (arg, exclusion_tag_under, NULL);
break;
case EXCLUDE_TAG_ALL_OPTION:
add_exclusion_tag (arg, exclusion_tag_all, NULL);
break;
case EXCLUDE_VCS_OPTION:
add_exclude_array (vcs_file_table);
break;
@@ -1706,31 +1705,31 @@ parse_opt (int key, char *arg, struct argp_state *state)
case FORCE_LOCAL_OPTION:
force_local_option = true;
break;
case 'H':
set_archive_format (arg);
break;
case INDEX_FILE_OPTION:
index_file_name = arg;
break;
case IGNORE_CASE_OPTION:
args->matching_flags |= FNM_CASEFOLD;
break;
case IGNORE_COMMAND_ERROR_OPTION:
ignore_command_error_option = true;
break;
case IGNORE_FAILED_READ_OPTION:
ignore_failed_read_option = true;
break;
case KEEP_NEWER_FILES_OPTION:
old_files_option = KEEP_NEWER_FILES;
break;
case GROUP_OPTION:
if (! (strlen (arg) < GNAME_FIELD_SIZE
&& gname_to_gid (arg, &group_option)))
@@ -1741,10 +1740,10 @@ parse_opt (int key, char *arg, struct argp_state *state)
group_option = g;
else
FATAL_ERROR ((0, 0, "%s: %s", quotearg_colon (arg),
_("%s: Invalid group")));
_("Invalid group")));
}
break;
case MODE_OPTION:
mode_option = mode_compile (arg);
if (!mode_option)
@@ -1752,49 +1751,49 @@ parse_opt (int key, char *arg, struct argp_state *state)
initial_umask = umask (0);
umask (initial_umask);
break;
case NO_ANCHORED_OPTION:
args->include_anchored = 0; /* Clear the default for comman line args */
args->matching_flags &= ~ EXCLUDE_ANCHORED;
break;
case NO_IGNORE_CASE_OPTION:
args->matching_flags &= ~ FNM_CASEFOLD;
break;
case NO_IGNORE_COMMAND_ERROR_OPTION:
ignore_command_error_option = false;
break;
case NO_OVERWRITE_DIR_OPTION:
old_files_option = NO_OVERWRITE_DIR_OLD_FILES;
break;
case NO_QUOTE_CHARS_OPTION:
for (;*arg; arg++)
set_char_quoting (NULL, *arg, 0);
break;
case NO_WILDCARDS_OPTION:
args->wildcards = disable_wildcards;
break;
case NO_WILDCARDS_MATCH_SLASH_OPTION:
args->matching_flags |= FNM_FILE_NAME;
break;
case NULL_OPTION:
filename_terminator = '\0';
break;
case NO_NULL_OPTION:
filename_terminator = '\n';
break;
case NUMERIC_OWNER_OPTION:
numeric_owner_option = true;
break;
case OCCURRENCE_OPTION:
if (!arg)
occurrence_option = 1;
@@ -1808,15 +1807,15 @@ parse_opt (int key, char *arg, struct argp_state *state)
_("Invalid number")));
}
break;
case OVERWRITE_DIR_OPTION:
old_files_option = DEFAULT_OLD_FILES;
break;
case OVERWRITE_OPTION:
old_files_option = OVERWRITE_OLD_FILES;
break;
case OWNER_OPTION:
if (! (strlen (arg) < UNAME_FIELD_SIZE
&& uname_to_uid (arg, &owner_option)))
@@ -1830,25 +1829,25 @@ parse_opt (int key, char *arg, struct argp_state *state)
_("Invalid owner")));
}
break;
case QUOTE_CHARS_OPTION:
for (;*arg; arg++)
set_char_quoting (NULL, *arg, 1);
break;
case QUOTING_STYLE_OPTION:
tar_set_quoting_style (arg);
break;
case PAX_OPTION:
args->pax_option = true;
xheader_set_option (arg);
break;
case POSIX_OPTION:
set_archive_format ("posix");
break;
case PRESERVE_OPTION:
/* FIXME: What it is good for? */
same_permissions_option = true;
@@ -1856,7 +1855,7 @@ parse_opt (int key, char *arg, struct argp_state *state)
WARN ((0, 0, _("The --preserve option is deprecated, "
"use --preserve-permissions --preserve-order instead")));
break;
case RECORD_SIZE_OPTION:
{
uintmax_t u;
@@ -1871,32 +1870,36 @@ parse_opt (int key, char *arg, struct argp_state *state)
blocking_factor = record_size / BLOCKSIZE;
}
break;
case RECURSIVE_UNLINK_OPTION:
recursive_unlink_option = true;
break;
case REMOVE_FILES_OPTION:
remove_files_option = true;
break;
case RESTRICT_OPTION:
restrict_option = true;
break;
case RMT_COMMAND_OPTION:
rmt_command = arg;
break;
case RSH_COMMAND_OPTION:
rsh_command_option = arg;
break;
case SHOW_DEFAULTS_OPTION:
show_default_settings (stdout);
close_stdout ();
exit (0);
{
char *s = format_default_settings ();
printf ("%s\n", s);
close_stdout ();
free (s);
exit (0);
}
case STRIP_COMPONENTS_OPTION:
{
uintmax_t u;
@@ -2062,7 +2065,7 @@ static struct argp argp = {
N_("[FILE]..."),
doc,
NULL,
NULL,
tar_help_filter,
NULL
};