From e43d30eab3215bc9ff49ec7db3d3e2baa95ba070 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@redhat.com>
Date: Tue, 3 Apr 2012 20:32:44 +0200
Subject: tests: convert nearly all `...` expressions to $(...)

Exempt init.sh because it runs before we're assured to have a
shell that groks $(...).  Exempt *.mk because "$" would have to
be doubled, and besides, any `...` expression in a .mk file is
almost certainly evaluated before init.sh is run.  Finally, also
exempt the perl-based tests, because perl's `...` cannot be
converted to $(...).  Do that by running this command:

git grep -l '`.*`' tests \
  | grep -Ev 'init\.sh|\.mk$' | xargs grep -Lw perl \
  | xargs perl -pi -e 's/`(.*?)`/\$($1)/g'

One minor fix-up change was required after that, due to how
quoting differs:
diff --git a/tests/chmod/equals b/tests/chmod/equals
-    expected_perms=$(eval 'echo \$expected_'$dest)
+    expected_perms=$(eval 'echo $expected_'$dest)

Another was to make these required quoting adjustments:
diff --git a/tests/misc/stty b/tests/misc/stty
...
-  rev=$(eval echo "\\\$REV_$opt")
+  rev=$(eval echo "\$REV_$opt")
...
-      rev1=$(eval echo "\\\$REV_$opt1")
-      rev2=$(eval echo "\\\$REV_$opt2")
+      rev1=$(eval echo "\$REV_$opt1")
+      rev2=$(eval echo "\$REV_$opt2")

Also, transform two files that were needlessly excluded above:
(both use perl, but are mostly bourne shell)

  perl -pi -e 's/`(.*?)`/\$($1)/g' \
    tests/du/long-from-unreadable tests/init.cfg
---
 tests/ln/sf-1 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'tests/ln/sf-1')

diff --git a/tests/ln/sf-1 b/tests/ln/sf-1
index e7b680b5d..824c22432 100755
--- a/tests/ln/sf-1
+++ b/tests/ln/sf-1
@@ -23,7 +23,7 @@ echo foo > a || framework_failure_
 ln -s . b || framework_failure_
 
 ln -sf a b > err 2>&1 && fail=1
-case `cat err` in
+case $(cat err) in
   *'are the same file') ;;
   *) fail=1 ;;
 esac
-- 
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