grep branch, master, updated. v2.22-26-g20f20a4

[Jim Meyering]

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http://git.savannah.gnu.org/cgit/grep.git/commit/?id=20f20a4dae4830b587fbbc5e8198bdc44b3dd3a8


commit 20f20a4dae4830b587fbbc5e8198bdc44b3dd3a8
Author: Jim Meyering <address@hidden>
Date:   Fri Jan 8 19:23:25 2016 -0800

    tests: do use "yes" but via an AWK replacement
    
    Also, use sed Nq in place of head -N
    * tests/init.cfg (yes): Define.
    Thanks to Paul Eggert for this definition.
    * tests/max-count-overread: Revert to using "yes".
    * tests/mb-non-UTF8-performance: Likewise, and use
    "sed Nq" in place of head -N.

diff --git a/tests/init.cfg b/tests/init.cfg
index be03357..bc62c32 100644
--- a/tests/init.cfg
+++ b/tests/init.cfg
@@ -200,3 +200,6 @@ user_time_()
     $child_user *= 1000;
     print int ($child_user + 0.5)' "$@"
 }
+
+# yes is not portable, fake it with $AWK
+yes() { line=${*-y} ${AWK-awk} 'BEGIN{for (;;) print ENVIRON["line"]}'; }
diff --git a/tests/max-count-overread b/tests/max-count-overread
index ec98ac8..d7aafd6 100755
--- a/tests/max-count-overread
+++ b/tests/max-count-overread
@@ -9,7 +9,7 @@ fail=0
 
 echo x > exp || framework_failure_
 
-${AWK-awk} 'BEGIN{for (;;) print "x"}' | timeout 3 grep -m1 x > out || fail=1
+yes x | timeout 3 grep -m1 x > out || fail=1
 compare exp out || fail=1
 
 Exit $fail
diff --git a/tests/mb-non-UTF8-performance b/tests/mb-non-UTF8-performance
index c350dfb..3f9209c 100755
--- a/tests/mb-non-UTF8-performance
+++ b/tests/mb-non-UTF8-performance
@@ -31,9 +31,7 @@ expensive_
 # the unibyte test takes at least 10ms of user time.
 n_lines=100000
 while :; do
-  ${AWK-awk} -v n_lines=$n_lines \
-      'BEGIN {while (n_lines--) printf "%078d\n", 0}' </dev/null >in ||
-    framework_failure_
+  yes $(printf '%078d' 0) | sed ${n_lines}q > in || framework_failure_
   ubyte_ms=$(LC_ALL=C user_time_ 1 grep -i foobar in) || fail=1
   test $ubyte_ms -ge 10 && break
   n_lines=$(expr $n_lines + 200000)

-----------------------------------------------------------------------

Summary of changes:
 tests/init.cfg                |    3 +++
 tests/max-count-overread      |    2 +-
 tests/mb-non-UTF8-performance |    4 +---
 3 files changed, 5 insertions(+), 4 deletions(-)


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