linux-kernel - [PATCH 11/21] ktest: Add INCLUDE keyword to include other config files

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Message-Id: <20111028112024.551423741@goodmis.org>
Date:	Fri, 28 Oct 2011 07:16:09 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	linux-kernel@...r.kernel.org
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 11/21] ktest: Add INCLUDE keyword to include other config files

From: Steven Rostedt <srostedt@...hat.com>

Have the reading of the config file allow reading of other config
files using the INCLUDE keyword. This allows multiple config files
to share config options.

Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
 tools/testing/ktest/ktest.pl    |   55 ++++++++++++++++++++++++++++++++++-----
 tools/testing/ktest/sample.conf |   32 +++++++++++++++++++++-
 2 files changed, 78 insertions(+), 9 deletions(-)

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index ed20d68..62de47d 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -412,15 +412,16 @@ sub process_if {
     return 1;
 }
 
-sub read_config {
-    my ($config) = @_;
+sub __read_config {
+    my ($config, $current_test_num) = @_;
 
-    open(IN, $config) || die "can't read file $config";
+    my $in;
+    open($in, $config) || die "can't read file $config";
 
     my $name = $config;
     $name =~ s,.*/(.*),$1,;
 
-    my $test_num = 0;
+    my $test_num = $$current_test_num;
     my $default = 1;
     my $repeat = 1;
     my $num_tests_set = 0;
@@ -430,7 +431,7 @@ sub read_config {
     my $if = 0;
     my $if_set = 0;
 
-    while (<IN>) {
+    while (<$in>) {
 
 	# ignore blank lines and comments
 	next if (/^\s*$/ || /\s*\#/);
@@ -539,6 +540,33 @@ sub read_config {
 		die "$name: $.: Gargbage found after DEFAULTS\n$_";
 	    }
 
+	} elsif (/^\s*INCLUDE\s+(\S+)/) {
+
+	    next if ($skip);
+
+	    if (!$default) {
+		die "$name: $.: INCLUDE can only be done in default sections\n$_";
+	    }
+
+	    my $file = process_variables($1);
+
+	    if ($file !~ m,^/,) {
+		# check the path of the config file first
+		if ($config =~ m,(.*)/,) {
+		    if (-f "$1/$file") {
+			$file = "$1/$file";
+		    }
+		}
+	    }
+		
+	    if ( ! -r $file ) {
+		die "$name: $.: Can't read file $file\n$_";
+	    }
+
+	    if (__read_config($file, \$test_num)) {
+		$test_case = 1;
+	    }
+
 	} elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
 
 	    next if ($skip);
@@ -594,13 +622,26 @@ sub read_config {
 	}
     }
 
-    close(IN);
-
     if ($test_num) {
 	$test_num += $repeat - 1;
 	$opt{"NUM_TESTS"} = $test_num;
     }
 
+    close($in);
+
+    $$current_test_num = $test_num;
+
+    return $test_case;
+}
+
+sub read_config {
+    my ($config) = @_;
+
+    my $test_case;
+    my $test_num = 0;
+
+    $test_case = __read_config $config, \$test_num;
+
     # make sure we have all mandatory configs
     get_ktest_configs;
 
diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf
index 4e8fb91..ae2a93c 100644
--- a/tools/testing/ktest/sample.conf
+++ b/tools/testing/ktest/sample.conf
@@ -122,8 +122,36 @@
 # ELSE
 # BUILD_TYPE = useconfig:${CONFIG_DIR}/config-64
 #
-
-
+#
+# INCLUDE file
+#
+# The INCLUDE keyword may be used in DEFAULT sections. This will
+# read another config file and process that file as well. The included
+# file can include other files, add new test cases or default
+# statements. Config variables will be passed to these files and changes
+# to config variables will be seen by top level config files. Including
+# a file is processed just like the contents of the file was cut and pasted
+# into the top level file, except, that include files that end with
+# TEST_START sections will have that section ended at the end of
+# the include file. That is, an included file is included followed
+# by another DEFAULT keyword.
+#
+# Unlike other files referenced in this config, the file path does not need
+# to be absolute. If the file does not start with '/', then the directory
+# that the current config file was located in is used. If no config by the
+# given name is found there, then the current directory is searched.
+#
+# INCLUDE myfile
+# DEFAULT
+#
+# is the same as:
+#
+# INCLUDE myfile
+#
+# Note, if the include file does not contain a full path, the file is
+# searched first by the location of the original include file, and then
+# by the location that ktest.pl was executed in.
+#
 
 #### Config variables ####
 #
-- 
1.7.6.3



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