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| author |   Michael Orlitzky <mjo@gentoo.org> | 2014-01-22 16:18:23 -0500 |
|---|---|---|
| committer |   Mike Frysinger <vapier@gentoo.org> | 2014-01-22 20:05:27 -0500 |
| commit | 669ccb584f4d39b764223ae44cb2d45ac6eb3903 (patch) | |
| tree | 916de4b8226e79bcd727563ac03cd874296846e2 /man | |
| parent | Added support for variable expansion in source command argument in make.conf (diff) | |
| download | portage-669ccb584f4d39b764223ae44cb2d45ac6eb3903.tar.gz portage-669ccb584f4d39b764223ae44cb2d45ac6eb3903.tar.bz2 portage-669ccb584f4d39b764223ae44cb2d45ac6eb3903.zip | |
ebuild(5): document the "has" function
Diffstat (limited to 'man')
| -rw-r--r-- | man/ebuild.5 | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/man/ebuild.5 b/man/ebuild.5 index 524006a5a..32c3ea664 100644 --- a/man/ebuild.5 +++ b/man/ebuild.5 @@ -1049,15 +1049,17 @@ of \fI\-\-without\-\fR. Beginning with \fBEAPI 4\fR, an empty \fIconfigure opt\fR argument is recognized. In \fBEAPI 3\fR and earlier, an empty \fIconfigure opt\fR argument is treated as if it weren't provided. .TP -.B hasv\fR \fI<item>\fR \fI<item list> -If \fIitem\fR is in \fIitem list\fR, then \fIitem\fR is echoed and \fBhasv\fR -returns 0. Otherwise, nothing is echoed and 1 is returned. As indicated with -use, there is a non\-echoing version \fBhas\fR. Please use \fBhas\fR in all -places where output is to be disregarded. Never use the output for calculation. +.B has\fR \fI<item>\fR \fI<item list> +If \fIitem\fR is in \fIitem list\fR, then \fBhas\fR returns +0. Otherwise, 1 is returned. There is another version, \fBhasv\fR, that +will conditionally echo \fIitem\fR. .br The \fIitem list\fR is delimited by the \fIIFS\fR variable. This variable has a default value of ' ', or a space. It is a \fBbash\fR(1) setting. .TP +.B hasv\fR \fI<item>\fR \fI<item list> +Like \fBhas\fR, but also echoes \fIitem\fR when \fBhas\fR returns true. +.TP .B has_version\fR \fI[\-\-host\-root]\fR \fI<category/package\-version> Check to see if \fIcategory/package\-version\fR is installed on the system. The parameter accepts all values that are acceptable in the \fBDEPEND\fR |