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805 Commits

Author SHA1 Message Date
Denys Vlasenko
5b2cc0aaee hush: do not assign to readonly VAR in "VAR=VAL CMD" syntax too 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-18 02:44:06 +02:00
Denys Vlasenko
38ef39a1ab hush: add readonly testcase, fix fallout 
function                                             old     new   delta
helper_export_local                                  185     214     +29
run_pipe                                            1549    1560     +11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 40/0)               Total: 40 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-18 01:40:01 +02:00
Denys Vlasenko
3bab36b18b hush: convert exp/ro/local parameters to bitfields in one flag param 
function                                             old     new   delta
helper_export_local                                  174     185     +11
set_local_var                                        424     420      -4
run_list                                            1048    1044      -4
set_vars_and_save_old                                 88      83      -5
set_local_var_from_halves                             27      22      -5
run_pipe                                            1554    1549      -5
builtin_export                                       173     168      -5
set_pwd_var                                           40      34      -6
builtin_readonly                                      70      64      -6
expand_one_var                                      1625    1618      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/9 up/down: 11/-47)            Total: -36 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-18 01:05:24 +02:00
Denys Vlasenko
6b0695bb66 hush: HUSH_READONLY depends on HUSH 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-17 21:47:27 +02:00
Denys Vlasenko
6b48e1f121 hush: forgot to emit error on (failing) second "readonly VAR=VAL" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-17 21:31:17 +02:00
Denys Vlasenko
b95ee96e75 hush: smaller code in !READONLY configs 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-17 21:19:53 +02:00
Denys Vlasenko
1e660422b1 hush: implement "readonly" builtin 
function                                             old     new   delta
builtin_readonly                                       -      70     +70
helper_export_local                                  152     174     +22
bltins1                                              348     360     +12
expand_one_var                                      1620    1625      +5
builtin_export                                       168     173      +5
set_pwd_var                                           36      40      +4
set_local_var                                        410     414      +4
set_vars_and_save_old                                 85      88      +3
set_local_var_from_halves                             24      27      +3
run_pipe                                            1551    1554      +3
run_list                                            1046    1048      +2
builtin_type                                         116     114      -2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 10/1 up/down: 133/-2)           Total: 131 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-17 21:10:50 +02:00
Denys Vlasenko
0ba80e4fa2 hush: small fix to last commit 
die_if_script() indeed dies only in scripts! Must handle the case where it continues.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-17 16:50:20 +02:00
Denys Vlasenko
e32b6503e7 hush: support ${VAR:N:-M} 
function                                             old     new   delta
expand_one_var                                      1602    1615     +13
builtin_type                                         114     116      +2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-17 16:46:57 +02:00
Denys Vlasenko
203fd7bc66 shells: expand TODO comments, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-17 16:13:35 +02:00
Denys Vlasenko
b24e55da84 hush: fix "cmd1 && cmd2 &" handling on NOMMU 
function                                             old     new   delta
done_pipe                                            234     238      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-16 20:29:35 +02:00
Denys Vlasenko
ee553b929c hush: fix and_or_and_backgrounding.tests failure 
function                                             old     new   delta
done_pipe                                            133     218     +85

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-15 22:51:55 +02:00
Denys Vlasenko
2ed74e25d3 hush: make "wait %1" work even if the job is dead 
Example script:

	sleep 1 | (sleep 1;exit 3) &
	sleep 2
	echo Zero:$?
	wait %1
	echo Three:$?

function                                             old     new   delta
clean_up_last_dead_job                                 -      24     +24
process_wait_result                                  426     447     +21
builtin_wait                                         285     293      +8
insert_job_into_table                                264     269      +5
builtin_jobs                                          68      73      +5
remove_job_from_table                                 59      57      -2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/1 up/down: 63/-2)              Total: 61 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-14 19:58:46 +02:00
Denys Vlasenko
0c5657e911 hush: remove superfluous comparison 
function                                             old     new   delta
builtin_wait                                         291     285      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-14 19:27:03 +02:00
Denys Vlasenko
9fda609a60 hush: add support for "set -e" 
function                                             old     new   delta
run_list                                             978    1046     +68
o_opt_strings                                         24      32      +8
reset_traps_to_defaults                              136     142      +6
pick_sighandler                                       57      60      +3
packed_usage                                       31772   31770      -2
hush_main                                            983     961     -22
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/2 up/down: 85/-24)             Total: 61 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-14 13:36:48 +02:00
Denys Vlasenko
b057806a6a hush: add TODO for "set -e" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-10 10:33:27 +02:00
Denys Vlasenko
9e55a156f8 hush: simplify insert_job_into_table() a bit 
function                                             old     new   delta
done_word                                            767     761      -6
insert_job_into_table                                325     264     -61
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 59/-126)           Total: -67 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-10 10:01:12 +02:00
Denys Vlasenko
1609629a91 hush: rename a few functions 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-10 10:00:28 +02:00
Denys Vlasenko
13102634bb hush: explain why wait5.tests is failing 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-08 00:24:32 +02:00
Denys Vlasenko
840a4355d0 hush: fix "(sleep 1; exit 3) & sleep 2; echo $?; wait $!; echo $?" 
function                                             old     new   delta
process_wait_result                                  414     426     +12
builtin_wait                                         283     291      +8
run_list                                             974     978      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 24/0)               Total: 24 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-07 22:56:02 +02:00
Denys Vlasenko
2db74610cd hush: fix two redirection testcase failures 
function                                             old     new   delta
save_fds_on_redirect                                 183     256     +73
fcntl_F_DUPFD                                          -      46     +46
restore_redirects                                     74      96     +22
xdup_and_close                                        51      72     +21
setup_redirects                                      196     200      +4
hush_main                                            988     983      -5
static.C                                              12       -     -12
run_pipe                                            1595    1551     -44
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 4/2 up/down: 166/-61)           Total: 105 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-07 22:07:28 +02:00
Denys Vlasenko
69a5ec9dcc main: fix the case where user has "halt" as login shell. Closes 9986 
halt::0:0::/:/sbin/halt

function                                             old     new   delta
run_applet_and_exit                                  748     751      +3
run_applet_no_and_exit                               467     459      -8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-07 19:08:56 +02:00
Denys Vlasenko
50b8b2914b hush: add a TODO about redir3.tests failure 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-06 20:57:37 +02:00
Denys Vlasenko
e59591a364 hush: Print error messages on shift -1 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-06 20:12:44 +02:00
Denys Vlasenko
5dad7bdc3b hush: implement negative start in the ${v: -n[:m]} idiom 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-06 19:48:20 +02:00
Denys Vlasenko
7456298472 hush: "adopt" ash signal4.tests 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-06 18:40:45 +02:00
Denys Vlasenko
637982f5bb hush: correctly handle quoting in "case" even if !BASH_PATTERN_SUBST 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-06 01:52:23 +02:00
Denys Vlasenko
bd43c6784f hush: fix quoted_punct.tests failure 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-05 23:12:15 +02:00
Denys Vlasenko
d4e4fdb5ce fixes for bugs found by make_single_applets.sh 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-03 21:31:16 +02:00
Denys Vlasenko
2e989ef232 msh: delete this applet 
It's deprecated since 2009 and interferes with make_single_applets.sh tests.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-03 16:56:37 +02:00
Denys Vlasenko
4ee824f6ba randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-03 01:22:13 +02:00
Denys Vlasenko
f547041940 ash,hush: fix SIGCHLD interrupting read builtin 
function                                             old     new   delta
readcmd                                              169     217     +48
shell_builtin_read                                  1087    1097     +10
localcmd                                             366     364      -2
builtin_read                                         197     193      -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 58/-6)              Total: 52 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-05-22 19:34:45 +02:00
Denys Vlasenko
10ad622dc2 Spelling fixes in comments, documentation, tests and examples 
By klemens <ka7@github.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-04-17 16:13:32 +02:00
Denys Vlasenko
205d48e948 *: add comment about APPLET_ODDNAME format 
It confused me more than once

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-29 14:57:33 +01:00
Denys Vlasenko
8944c67b1f hush: reinstate [[ builtin 
Mike deleted it:

    commit 39456a18a1
    Author: Mike Frysinger <vapier@gentoo.org>
    Date:   Sat Mar 28 12:21:57 2009 +0000

    stop lying about [[ test support

probably because it was not properly ifdefed around, and was enabled
even when bash compat is off.

I just tested it - it works:

$ [ *.diff = z.diff ]; echo $?
0
$ [[ *.diff = z.diff ]]; echo $?
1

Of course, not all numerous bash tricks of [[ ]] are implemented...

function                                             old     new   delta
bltins2                                               60      72     +12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-11 14:22:00 +01:00
Kang-Che Sung
027d3ab57d hush: split bash compatible extensions into separate defines. No code changes 
Splitting these options makes it self-documenting about what
bash-compatible features we have.

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-11 14:18:30 +01:00
Denys Vlasenko
80f806cac9 hush: shorten output of "help" builtin 
text	   data	    bss	    dec	    hex	filename
 891272	    485	   6856	 898613	  db635	busybox_old
 891232	    485	   6856	 898573	  db60d	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-10 16:51:10 +01:00
Denys Vlasenko
a1184af5f8 hush: reorder builtins (cd and pwd ought to be close, etc), no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-10 15:58:02 +01:00
Denys Vlasenko
265062d59d shells: make hush test optional, rename ASH_BUILTIN_foo -> ASH_foo 
This makes hash and ash more symmetrical wrt config menu and config
options.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-10 15:13:30 +01:00
Denys Vlasenko
f560422fa0 Big cleanup in config help and description 
Redundant help texts (one which only repeats the description)
are deleted.

Descriptions and help texts are trimmed.

Some config options are moved, even across menus.

No config option _names_ are changed.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-10 14:58:54 +01:00
Denys Vlasenko
1cc6804f69 hush: make echo builtin optional 
It's a bit overkill (who would want it off?) but ash already has it
configurable. Let's be symmetric.

Also tweak kbuild logic to use ASH_BUILTIN_ECHO to select echo.o,
not ASH.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 17:10:04 +01:00
Denys Vlasenko
2b1559056c hush: fix a bug in argv restoration after sourcing a file 
if sourced file "shift"ed argvs so that $1 is NULL, restore wasn't done.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 08:13:21 +01:00
Denys Vlasenko
4e4f88e569 hush: global_args_malloced is used only if set builtin is enabled 
function                                             old     new   delta
run_pipe                                            1623    1635     +12
builtin_source                                       210     222     +12
save_and_replace_G_args                               70      60     -10
builtin_shift                                        132      94     -38
restore_G_args                                        98       -     -98
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/2 up/down: 24/-146)          Total: -122 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 07:57:38 +01:00
Denys Vlasenko
cc2fd5a986 hush: fix 'defined but not used' warning 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 06:19:55 +01:00
Denys Vlasenko
5362cc4b8c hush: remove redundand test for ENABLE_HUSH_JOB 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 05:57:13 +01:00
Denys Vlasenko
fd68f1e80d hush: fix kill builtin without jobs support 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 05:47:57 +01:00
Denys Vlasenko
442a414d66 typo fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 05:11:09 +01:00
Denys Vlasenko
41ade05cac hush: conditionalize print_escaped() on EXPORT || TRAP 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-08 18:56:24 +01:00
Denys Vlasenko
4471969db2 hush: make memleak builtin optional 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-08 18:44:41 +01:00
Denys Vlasenko
6ec76d8719 hush: make export builtin optional 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-08 18:40:41 +01:00