This reverts commit ad0e6233320b004f0d686f6887c803e508607bd2.

--valgrind-parallel was broken from the start: during review I made
the whole valgrind setup code conditional on not being a
--valgrind-parallel worker child.  But even the children crucially
need $GIT_VALGRIND to be set; it should therefore have been set
outside the conditional.

The fix would be a two-liner, but since the introduction of the
feature, almost four months have passed without anyone noticing that
it is broken.  So this feature is not worth the about hundred lines of
test-lib.sh complexity.  Revert it.

Signed-off-by: Thomas Rast <t...@thomasrast.ch>
---
 t/test-lib.sh | 106 ++++++++++++----------------------------------------------
 1 file changed, 22 insertions(+), 84 deletions(-)

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 0fa7dfd..eaf6759 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -205,15 +205,6 @@ do
        --valgrind-only=*)
                valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
                shift ;;
-       --valgrind-parallel=*)
-               valgrind_parallel=$(expr "z$1" : 'z[^=]*=\(.*\)')
-               shift ;;
-       --valgrind-only-stride=*)
-               valgrind_only_stride=$(expr "z$1" : 'z[^=]*=\(.*\)')
-               shift ;;
-       --valgrind-only-offset=*)
-               valgrind_only_offset=$(expr "z$1" : 'z[^=]*=\(.*\)')
-               shift ;;
        --tee)
                shift ;; # was handled already
        --root=*)
@@ -227,7 +218,7 @@ do
        esac
 done
 
-if test -n "$valgrind_only" || test -n "$valgrind_only_stride"
+if test -n "$valgrind_only"
 then
        test -z "$valgrind" && valgrind=memcheck
        test -z "$verbose" && verbose_only="$valgrind_only"
@@ -377,9 +368,7 @@ maybe_teardown_verbose () {
 last_verbose=t
 maybe_setup_verbose () {
        test -z "$verbose_only" && return
-       if match_pattern_list $test_count $verbose_only ||
-               { test -n "$valgrind_only_stride" &&
-               expr $test_count "%" $valgrind_only_stride - 
$valgrind_only_offset = 0 >/dev/null; }
+       if match_pattern_list $test_count $verbose_only
        then
                exec 4>&2 3>&1
                # Emit a delimiting blank line when going from
@@ -403,7 +392,7 @@ maybe_teardown_valgrind () {
 
 maybe_setup_valgrind () {
        test -z "$GIT_VALGRIND" && return
-       if test -z "$valgrind_only" && test -z "$valgrind_only_stride"
+       if test -z "$valgrind_only"
        then
                GIT_VALGRIND_ENABLED=t
                return
@@ -412,10 +401,6 @@ maybe_setup_valgrind () {
        if match_pattern_list $test_count $valgrind_only
        then
                GIT_VALGRIND_ENABLED=t
-       elif test -n "$valgrind_only_stride" &&
-               expr $test_count "%" $valgrind_only_stride - 
$valgrind_only_offset = 0 >/dev/null
-       then
-               GIT_VALGRIND_ENABLED=t
        fi
 }
 
@@ -568,9 +553,6 @@ test_done () {
        esac
 }
 
-
-# Set up a directory that we can put in PATH which redirects all git
-# calls to 'valgrind git ...'.
 if test -n "$valgrind"
 then
        make_symlink () {
@@ -618,42 +600,33 @@ then
                make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
        }
 
-       # In the case of --valgrind-parallel, we only need to do the
-       # wrapping once, in the main script.  The worker children all
-       # have $valgrind_only_stride set, so we can skip based on that.
-       if test -z "$valgrind_only_stride"
-       then
-               # override all git executables in TEST_DIRECTORY/..
-               GIT_VALGRIND=$TEST_DIRECTORY/valgrind
-               mkdir -p "$GIT_VALGRIND"/bin
-               for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
-               do
-                       make_valgrind_symlink $file
-               done
-               # special-case the mergetools loadables
-               make_symlink "$GIT_BUILD_DIR"/mergetools 
"$GIT_VALGRIND/bin/mergetools"
-               OLDIFS=$IFS
-               IFS=:
-               for path in $PATH
+       # override all git executables in TEST_DIRECTORY/..
+       GIT_VALGRIND=$TEST_DIRECTORY/valgrind
+       mkdir -p "$GIT_VALGRIND"/bin
+       for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
+       do
+               make_valgrind_symlink $file
+       done
+       # special-case the mergetools loadables
+       make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
+       OLDIFS=$IFS
+       IFS=:
+       for path in $PATH
+       do
+               ls "$path"/git-* 2> /dev/null |
+               while read file
                do
-                       ls "$path"/git-* 2> /dev/null |
-                       while read file
-                       do
-                               make_valgrind_symlink "$file"
-                       done
+                       make_valgrind_symlink "$file"
                done
-               IFS=$OLDIFS
-       fi
+       done
+       IFS=$OLDIFS
        PATH=$GIT_VALGRIND/bin:$PATH
        GIT_EXEC_PATH=$GIT_VALGRIND/bin
        export GIT_VALGRIND
        GIT_VALGRIND_MODE="$valgrind"
        export GIT_VALGRIND_MODE
        GIT_VALGRIND_ENABLED=t
-       if test -n "$valgrind_only" || test -n "$valgrind_only_stride"
-       then
-               GIT_VALGRIND_ENABLED=
-       fi
+       test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
        export GIT_VALGRIND_ENABLED
 elif test -n "$GIT_TEST_INSTALLED"
 then
@@ -730,41 +703,6 @@ then
 else
        mkdir -p "$TRASH_DIRECTORY"
 fi
-
-# Gross hack to spawn N sub-instances of the tests in parallel, and
-# summarize the results.  Note that if this is enabled, the script
-# terminates at the end of this 'if' block.
-if test -n "$valgrind_parallel"
-then
-       for i in $(test_seq 1 $valgrind_parallel)
-       do
-               root="$TRASH_DIRECTORY/vgparallel-$i"
-               mkdir "$root"
-               TEST_OUTPUT_DIRECTORY="$root" \
-                       ${SHELL_PATH} "$0" \
-                       --root="$root" --statusprefix="[$i] " \
-                       --valgrind="$valgrind" \
-                       --valgrind-only-stride="$valgrind_parallel" \
-                       --valgrind-only-offset="$i" &
-               pids="$pids $!"
-       done
-       trap "kill $pids" INT TERM HUP
-       wait $pids
-       trap - INT TERM HUP
-       for i in $(test_seq 1 $valgrind_parallel)
-       do
-               root="$TRASH_DIRECTORY/vgparallel-$i"
-               eval "$(cat "$root/test-results/$(basename "$0" .sh)"-*.counts |
-                       sed 's/^\([a-z][a-z]*\) \([0-9][0-9]*\)/inner_\1=\2/')"
-               test_count=$(expr $test_count + $inner_total)
-               test_success=$(expr $test_success + $inner_success)
-               test_fixed=$(expr $test_fixed + $inner_fixed)
-               test_broken=$(expr $test_broken + $inner_broken)
-               test_failure=$(expr $test_failure + $inner_failed)
-       done
-       test_done
-fi
-
 # Use -P to resolve symlinks in our working directory so that the cwd
 # in subprocesses like git equals our $PWD (for pathname comparisons).
 cd -P "$TRASH_DIRECTORY" || exit 1
-- 
1.8.4.1.810.g312044e

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