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hush: reinstate [[ builtin

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Mike deleted it:

    commit 39456a18a104b228de240b265bd943251219849d
    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>
This commit is contained in:
Denys Vlasenko 2017-01-11 14:22:00 +01:00
parent 027d3ab57d
commit 8944c67b1f
1 changed files with 3 additions and 0 deletions
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3
shell/hush.c
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@ -1083,6 +1083,9 @@ static const struct built_in_command bltins2[] = {
#if ENABLE_HUSH_TEST
BLTIN("[" , builtin_test , NULL),
#endif
#if BASH_TEST2
BLTIN("[[" , builtin_test , NULL),
#endif
#if ENABLE_HUSH_ECHO
BLTIN("echo" , builtin_echo , NULL),
#endif