[PATCH 3/3] Clarify help text of CONFIG_{SH,BASH}_IS_* options.

[Kang-Che Sung]

Mention the behavior if user selects CONFIG_SH_IS_ASH but not
CONFIG_ASH. We will be explicit that invocations like "busybox ash"
will not work for such configuration.

Also clarify help text of CONFIG_BASH_IS_* that bash compatibility in
ash is not complete. (It shouldn't be anyway - ash can't support every
bash quirk out there.)

Signed-off-by: Kang-Che Sung <explorer09 at gmail.com>
---
 shell/Config.src | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/shell/Config.src b/shell/Config.src
index 1fb05fab6..997f42f91 100644
--- a/shell/Config.src
+++ b/shell/Config.src
@@ -19,12 +19,24 @@ choice
 config SH_IS_ASH
  depends on !NOMMU
  bool "ash"
+ help
+  Choose ash to be the shell executed by 'sh' name.
+  The ash code will be built into busybox. If you didn't say Y to the
+  "ash" choice (CONFIG_ASH) above, this shell may only be invoked by
+  the name 'sh' (and not 'ash').

 config SH_IS_HUSH
  bool "hush"
+ help
+  Choose hush to be the shell executed by 'sh' name.
+  The hush code will be built into busybox. If you didn't say Y to the
+  "hush" choice (CONFIG_HUSH) above, this shell may only be invoked by
+  the name 'sh' (and not 'hush').

 config SH_IS_NONE
  bool "none"
+ help
+  Do not support 'sh' applet name in busybox.

 endchoice

@@ -33,7 +45,8 @@ choice
  default BASH_IS_NONE
  help
   Choose which shell you want to be executed by 'bash' alias.
-  The ash shell is the most bash compatible and full featured one.
+  The ash shell is the most bash compatible and full featured one,
+  although not complete.

   Note that selecting this option does not switch on any bash
   compatibility code. It merely makes it possible to install
@@ -48,12 +61,25 @@ choice
 config BASH_IS_ASH
  depends on !NOMMU
  bool "ash"
+ help
+  Choose ash to be the shell executed by 'bash' name.
+  The ash code will be built into busybox. If you didn't say Y to the
+  "ash" choice (CONFIG_ASH) above, this shell may only be invoked by
+  the name 'bash' (and not 'ash').
+

 config BASH_IS_HUSH
  bool "hush"
+ help
+  Choose hush to be the shell executed by 'bash' name.
+  The hush code will be built into busybox. If you didn't say Y to the
+  "hush" choice (CONFIG_HUSH) above, this shell may only be invoked by
+  the name 'bash' (and not 'hush').

 config BASH_IS_NONE
  bool "none"
+ help
+  Do not support 'bash' applet name in busybox.

 endchoice

-- 
2.11.0