hush: add support for ':'; create testsuite entries

[oweals/busybox.git] / shell / Config.in

diff --git a/shell/Config.in b/shell/Config.in
index 027993483792380312cc50c9a27f98edc471619b..a6701622c8004967fadceca067654045c8f2e168 100644 (file)
--- a/shell/Config.in
+++ b/shell/Config.in
@@ -20,9 +20,9 @@ config FEATURE_SH_IS_HUSH
        select HUSH
        bool "hush"
 
-config FEATURE_SH_IS_LASH
-       select LASH
-       bool "lash"
+####config FEATURE_SH_IS_LASH
+####   select LASH
+####   bool "lash"
 
 config FEATURE_SH_IS_MSH
        select MSH
@@ -36,7 +36,6 @@ endchoice
 config ASH
        bool "ash"
        default n
-       select TEST
        help
          Tha 'ash' shell adds about 60k in the default configuration and is
          the most complete and most pedantically correct shell included with
@@ -47,6 +46,13 @@ config ASH
 comment "Ash Shell Options"
        depends on ASH
 
+config ASH_BASH_COMPAT
+       bool "bash-compatible extensions"
+       default y
+       depends on ASH
+       help
+         Enable bash-conpatible extensions.
+
 config ASH_JOB_CONTROL
        bool "Job control"
        default y
@@ -104,15 +110,20 @@ config ASH_GETOPTS
 config ASH_BUILTIN_ECHO
        bool "Builtin version of 'echo'"
        default y
-       select ECHO
        depends on ASH
        help
          Enable support for echo, builtin to ash.
 
+config ASH_BUILTIN_PRINTF
+       bool "Builtin version of 'printf'"
+       default y
+       depends on ASH
+       help
+         Enable support for printf, builtin to ash.
+
 config ASH_BUILTIN_TEST
        bool "Builtin version of 'test'"
        default y
-       select TEST
        depends on ASH
        help
          Enable support for test, builtin to ash.
@@ -163,9 +174,6 @@ config ASH_EXPAND_PRMT
 config HUSH
        bool "hush"
        default n
-       select TRUE
-       select FALSE
-       select TEST
        help
          hush is a very small shell (just 18k) and it has fairly complete
          Bourne shell grammar.  It even handles all the normal flow control
@@ -176,6 +184,13 @@ config HUSH
          word ), arithmetic expansion, aliases, brace expansion, tilde
          expansion, &> and >& redirection of stdout+stderr, etc.
 
+config HUSH_HELP
+       bool "help builtin"
+       default n
+       depends on HUSH
+       help
+         Enable help builtin in hush. Code size + ~1 kbyte.
+
 config HUSH_INTERACTIVE
        bool "Interactive mode"
        default y
@@ -197,28 +212,37 @@ config HUSH_JOB
          prompting for next command (or executing next command in a script),
          but no separate process group is formed.
 
+config HUSH_TICK
+       bool "Process substitution"
+       default n
+       depends on HUSH
+       help
+         Enable process substitution `command` and $(command) in hush.
+
+config HUSH_IF
+       bool "Support if/then/elif/else/fi"
+       default n
+       depends on HUSH
+       help
+         Enable if/then/elif/else/fi in hush.
+
+config HUSH_LOOPS
+       bool "Support for, while and until loops"
+       default n
+       depends on HUSH
+       help
+         Enable for, while and until loops in hush.
 
 config LASH
        bool "lash"
        default n
-       select TRUE
-       select FALSE
-       select TEST
+       select HUSH
        help
-         lash is the very smallest shell (adds just 10k) and it is quite
-         usable as a command prompt, but it is not suitable for any but the
-         most trivial scripting (such as an initrd that calls insmod a few
-         times) since it does not understand any Bourne shell grammar.  It
-         does handle pipes, redirects, and job control though.  Adding in
-         command editing makes it a very nice lightweight command prompt.
-
+         lash is deprecated and will be removed, please migrate to hush.
 
 config MSH
        bool "msh"
        default n
-       select TRUE
-       select FALSE
-       select TEST
        help
          The minix shell (adds just 30k) is quite complete and handles things
          like for/do/done, case/esac and all the things you expect a Bourne
@@ -270,4 +294,41 @@ config FEATURE_SH_STANDALONE
 #        that exact location with that exact name, this option will not work at
 #        all.
 
+config FEATURE_SH_NOFORK
+       bool "Run 'nofork' applets directly"
+       default n
+       depends on (MSH || LASH || HUSH || ASH) && FEATURE_PREFER_APPLETS
+       help
+         This option causes busybox shells [currently only ash]
+         to not execute typical fork/exec/wait sequence, but call <applet>_main
+         directly, if possible. (Sometimes it is not possible: for example,
+         this is not possible in pipes).
+
+         This will be done only for some applets (those which are marked
+         NOFORK in include/applets.h).
+
+         This may significantly speed up some shell scripts.
+
+         This feature is relatively new. Use with care.
+
+config CTTYHACK
+       bool "cttyhack"
+       default n
+       help
+         One common problem reported on the mailing list is "can't access tty;
+         job control turned off" error message which typically appears when
+         one tries to use shell with stdin/stdout opened to /dev/console.
+         This device is special - it cannot be a controlling tty.
+
+         Proper solution is to use correct device instead of /dev/console.
+
+         cttyhack provides "quick and dirty" solution to this problem.
+         It analyzes stdin with various ioctls, trying to determine whether
+         it is a /dev/ttyN or /dev/ttySN (virtual terminal or serial line).
+         If it detects one, it closes stdin/out/err and reopens that device.
+         Then it executes given program. Usage example for /etc/inittab
+         (for busybox init):
+
+         ::respawn:/bin/cttyhack /bin/sh
+
 endmenu