[gentoo-commits] proj/devmanual:master commit in: ebuild-writing/use-conditional-code/

[gentoo-commits] proj/devmanual:master commit in: ebuild-writing/use-conditional-code/

[Markos Chandras]

commit:     c874437157617d6bab2e5ae07697c29814142ecf
Author:     Markos Chandras <hwoarang <AT> gentoo <DOT> org>
AuthorDate: Sun Apr 19 09:39:22 2015 +0000
Commit:     Markos Chandras <hwoarang <AT> gentoo <DOT> org>
CommitDate: Sun Apr 19 21:01:04 2015 +0000
URL:        https://gitweb.gentoo.org/proj/devmanual.git/commit/?id=c8744371

ebuild-writing: use-conditionals: Add more information about the old `use foo` style

X-Gentoo-Bug: 546950
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=546950

 ebuild-writing/use-conditional-code/text.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ebuild-writing/use-conditional-code/text.xml b/ebuild-writing/use-conditional-code/text.xml
index 3db3a40..bc95f84 100644
--- a/ebuild-writing/use-conditional-code/text.xml
+++ b/ebuild-writing/use-conditional-code/text.xml
@@ -15,7 +15,7 @@ readable.
 
 <p>
 The <c>if [ "`use foo`" ]</c> and <c>if [ -n "`use foo`" ]</c> forms which are
-occasionally seen in older code must <b>not</b> be used.
+occasionally seen in older code must <b>not</b> be used. This is because, since portage-2.1, the 'use' portage helper does not produce any output when the use flag is enabled or disabled so the [ "`use foo`" ] statement is pretty much identical to [ "" ] which always evaluates to false.
 </p>
 
 <note>

[gentoo-commits] proj/devmanual:master commit in: ebuild-writing/use-conditional-code/

[Ulrich Müller]

commit:     4fa2b0254e438bd01e4c23f901a6fe9b067f71a5
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Sun Mar 21 04:15:45 2021 +0000
Commit:     Ulrich Müller <ulm <AT> gentoo <DOT> org>
CommitDate: Wed Apr  7 17:28:16 2021 +0000
URL:        https://gitweb.gentoo.org/proj/devmanual.git/commit/?id=4fa2b025

ebuild-writing/use-conditional-code: use || die in example

For the purposes of the example, it's best to keep using || die. Plus,
in this situation, it's likely we'd want to know if the big files were
renamed or similar.

Signed-off-by: Sam James <sam <AT> gentoo.org>
Signed-off-by: Ulrich Müller <ulm <AT> gentoo.org>

 ebuild-writing/use-conditional-code/text.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ebuild-writing/use-conditional-code/text.xml b/ebuild-writing/use-conditional-code/text.xml
index 8db2d52..8725a40 100644
--- a/ebuild-writing/use-conditional-code/text.xml
+++ b/ebuild-writing/use-conditional-code/text.xml
@@ -28,7 +28,7 @@ statement. See <uri link="::ebuild-writing/error-handling/#die and Subshells"/>.
 	# USE conditional blocks...
 	if use livecd ; then
 		# remove some extra files for a small livecd install
-		rm -fr "${vimfiles}"/{compiler,doc,ftplugin,indent}
+		rm -fr "${vimfiles}"/{compiler,doc,ftplugin,indent} || die
 	fi
 
 	# Inverse USE conditional blocks...