X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/e8b81c92e78dc781a9569d7d51bd4f98d89237f8..244e2944c6b2f4efaf7d4375951ae2cf503823cd:/package/busybox/config/shell/Config.in diff --git a/package/busybox/config/shell/Config.in b/package/busybox/config/shell/Config.in index d2b105661..233c3a8f4 100644 --- a/package/busybox/config/shell/Config.in +++ b/package/busybox/config/shell/Config.in @@ -20,9 +20,9 @@ config BUSYBOX_CONFIG_FEATURE_SH_IS_HUSH select BUSYBOX_CONFIG_HUSH bool "hush" -config BUSYBOX_CONFIG_FEATURE_SH_IS_LASH - select BUSYBOX_CONFIG_LASH - bool "lash" +####config FEATURE_SH_IS_LASH +#### select LASH +#### bool "lash" config BUSYBOX_CONFIG_FEATURE_SH_IS_MSH select BUSYBOX_CONFIG_MSH @@ -36,17 +36,23 @@ endchoice config BUSYBOX_CONFIG_ASH bool "ash" default y - select BUSYBOX_CONFIG_TEST help Tha 'ash' shell adds about 60k in the default configuration and is the most complete and most pedantically correct shell included with - busybox. This shell is actually a derivative of the Debian 'dash' + busybox. This shell is actually a derivative of the Debian 'dash' shell (by Herbert Xu), which was created by porting the 'ash' shell (written by Kenneth Almquist) from NetBSD. comment "Ash Shell Options" depends on BUSYBOX_CONFIG_ASH +config BUSYBOX_CONFIG_ASH_BASH_COMPAT + bool "bash-compatible extensions" + default y + depends on BUSYBOX_CONFIG_ASH + help + Enable bash-compatible extensions. + config BUSYBOX_CONFIG_ASH_JOB_CONTROL bool "Job control" default y @@ -63,7 +69,7 @@ config BUSYBOX_CONFIG_ASH_READ_NCHARS 'read -s' will read without echoing the user's input. config BUSYBOX_CONFIG_ASH_READ_TIMEOUT - bool "'read -t S' support." + bool "'read -t S' support" default y depends on BUSYBOX_CONFIG_ASH help @@ -78,22 +84,6 @@ config BUSYBOX_CONFIG_ASH_ALIAS help Enable alias support in the ash shell. -config BUSYBOX_CONFIG_ASH_MATH_SUPPORT - bool "Posix math support" - default y - depends on BUSYBOX_CONFIG_ASH - help - Enable math support in the ash shell. - -config BUSYBOX_CONFIG_ASH_MATH_SUPPORT_64 - bool "Extend Posix math support to 64 bit" - default y - depends on BUSYBOX_CONFIG_ASH_MATH_SUPPORT - help - Enable 64-bit math support in the ash shell. This will make - the shell slightly larger, but will allow computation with very - large numbers. - config BUSYBOX_CONFIG_ASH_GETOPTS bool "Builtin getopt to parse positional parameters" default y @@ -104,15 +94,20 @@ config BUSYBOX_CONFIG_ASH_GETOPTS config BUSYBOX_CONFIG_ASH_BUILTIN_ECHO bool "Builtin version of 'echo'" default y - select BUSYBOX_CONFIG_ECHO depends on BUSYBOX_CONFIG_ASH help Enable support for echo, builtin to ash. +config BUSYBOX_CONFIG_ASH_BUILTIN_PRINTF + bool "Builtin version of 'printf'" + default y + depends on BUSYBOX_CONFIG_ASH + help + Enable support for printf, builtin to ash. + config BUSYBOX_CONFIG_ASH_BUILTIN_TEST bool "Builtin version of 'test'" default y - select BUSYBOX_CONFIG_TEST depends on BUSYBOX_CONFIG_ASH help Enable support for test, builtin to ash. @@ -141,14 +136,14 @@ config BUSYBOX_CONFIG_ASH_OPTIMIZE_FOR_SIZE Compile ash for reduced size at the price of speed. config BUSYBOX_CONFIG_ASH_RANDOM_SUPPORT - bool "Pseudorandom generator and variable $RANDOM" + bool "Pseudorandom generator and $RANDOM variable" default n depends on BUSYBOX_CONFIG_ASH help Enable pseudorandom generator and dynamic variable "$RANDOM". Each read of "$RANDOM" will generate a new pseudorandom value. You can reset the generator by using a specified start value. - After "unset RANDOM" then generator will switch off and this + After "unset RANDOM" the generator will switch off and this variable will no longer have special treatment. config BUSYBOX_CONFIG_ASH_EXPAND_PRMT @@ -156,25 +151,23 @@ config BUSYBOX_CONFIG_ASH_EXPAND_PRMT default y depends on BUSYBOX_CONFIG_ASH help - "PS#" may be contain volatile content, such as backquote commands. + "PS#" may contain volatile content, such as backquote commands. This option recreates the prompt string from the environment variable each time it is displayed. config BUSYBOX_CONFIG_HUSH bool "hush" default n - select BUSYBOX_CONFIG_TRUE - select BUSYBOX_CONFIG_FALSE - select BUSYBOX_CONFIG_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 - options such as if/then/elif/else/fi, for/in/do/done, while loops, - etc. + hush is a small shell (22k). It handles the normal flow control + constructs such as if/then/elif/else/fi, for/in/do/done, while loops, + case/esac. Redirections, here documents, $((arithmetic)) + and functions are supported. + + It will compile and work on no-mmu systems. - It does not handle case/esac, select, function, here documents ( << - word ), arithmetic expansion, aliases, brace expansion, tilde - expansion, &> and >& redirection of stdout+stderr, etc. + It does not handle select, aliases, brace expansion, + tilde expansion, &>file and >&file redirection of stdout+stderr. config BUSYBOX_CONFIG_HUSH_HELP bool "help builtin" @@ -225,38 +218,61 @@ config BUSYBOX_CONFIG_HUSH_LOOPS help Enable for, while and until loops in hush. -config BUSYBOX_CONFIG_LASH - bool "lash" +config BUSYBOX_CONFIG_HUSH_CASE + bool "Support case ... esac statement" + default n + depends on BUSYBOX_CONFIG_HUSH + help + Enable case ... esac statement in hush. +400 bytes. + +config BUSYBOX_CONFIG_HUSH_FUNCTIONS + bool "Support funcname() { commands; } syntax" default n - select BUSYBOX_CONFIG_TRUE - select BUSYBOX_CONFIG_FALSE - select BUSYBOX_CONFIG_TEST + depends on BUSYBOX_CONFIG_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. + Enable support for shell functions in hush. +800 bytes. +config BUSYBOX_CONFIG_LASH + bool "lash (deprecated: aliased to hush)" + default n + select BUSYBOX_CONFIG_HUSH + help + lash is deprecated and will be removed, please migrate to hush. config BUSYBOX_CONFIG_MSH - bool "msh" + bool "msh (deprecated: please use hush)" default n - select BUSYBOX_CONFIG_TRUE - select BUSYBOX_CONFIG_FALSE - select BUSYBOX_CONFIG_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 - shell to do. It is not always pedantically correct about Bourne - shell grammar (try running the shell testscript "tests/sh.testcases" - on it and compare vs bash) but for most things it works quite well. - It also uses only vfork, so it can be used on uClinux systems. + msh is deprecated and will be removed, please migrate to hush. + If there is a feature msh has but hush does not, please let us know. + +# 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 +# shell to do. It is not always pedantically correct about Bourne +# shell grammar (try running the shell testscript "tests/sh.testcases" +# on it and compare vs bash) but for most things it works quite well. +# It uses only vfork, so it can be used on uClinux systems. + comment "Bourne Shell Options" depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH +config BUSYBOX_CONFIG_SH_MATH_SUPPORT + bool "POSIX math support" + default y + depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_HUSH + help + Enable math support in the shell via $((...)) syntax. + +config BUSYBOX_CONFIG_SH_MATH_SUPPORT_64 + bool "Extend POSIX math support to 64 bit" + default y + depends on BUSYBOX_CONFIG_SH_MATH_SUPPORT + help + Enable 64-bit math support in the shell. This will make the shell + slightly larger, but will allow computation with very large numbers. + This is not in POSIX, so do not rely on this in portable code. + config BUSYBOX_CONFIG_FEATURE_SH_EXTRA_QUIET bool "Hide message on interactive shell startup" default n @@ -270,11 +286,11 @@ config BUSYBOX_CONFIG_FEATURE_SH_STANDALONE depends on (BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH) && BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS help This option causes busybox shells to use busybox applets - in preference to executables in the PATH whenever possible. For + in preference to executables in the PATH whenever possible. For example, entering the command 'ifconfig' into the shell would cause - busybox to use the ifconfig busybox applet. Specifying the fully + busybox to use the ifconfig busybox applet. Specifying the fully qualified executable name, such as '/sbin/ifconfig' will still - execute the /sbin/ifconfig executable on the filesystem. This option + execute the /sbin/ifconfig executable on the filesystem. This option is generally used when creating a statically linked version of busybox for use as a rescue shell, in the event that you screw up your system. @@ -288,15 +304,32 @@ config BUSYBOX_CONFIG_FEATURE_SH_STANDALONE started this way). # untrue? # Note that this will *also* cause applets to take precedence -# over shell builtins of the same name. So turning this on will +# over shell builtins of the same name. So turning this on will # eliminate any performance gained by turning on the builtin "echo" # and "test" commands in ash. # untrue? # Note that when using this option, the shell will attempt to directly -# run '/bin/busybox'. If you do not have the busybox binary sitting in +# run '/bin/busybox'. If you do not have the busybox binary sitting in # that exact location with that exact name, this option will not work at # all. +config BUSYBOX_CONFIG_FEATURE_SH_NOFORK + bool "Run 'nofork' applets directly" + default n + depends on (BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH) && BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS + help + This option causes busybox shells [currently only ash] + to not execute typical fork/exec/wait sequence, but call _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 BUSYBOX_CONFIG_CTTYHACK bool "cttyhack" default n