Find libc's write when git writes first

A Lua build replaces write, and git can write before cmd_main reaches
cgit_init_filters, as it does when GIT_TRACE2 is set, which called
through a null pointer and crashed every request.

1 file changed, 8 insertions, 0 deletions

diff --git a/tests/t0201-filters.sh b/tests/t0201-filters.shindex 1ffb973..3987bdc 100755--- a/tests/t0201-filters.sh+++ b/tests/t0201-filters.sh@@ -163,4 +163,12 @@ test_expect_success CGIT_LUA 'a lua filter that writes while loading still rende 	grep "</html>" tmp ' +# A Lua build replaces write, and git writes its trace before cgit has run a+# line of its own.+test_expect_success CGIT_LUA 'git can trace before the filters are set up' '+	CGIT_CONFIG="$PWD/cgitrc" GIT_TRACE2="$PWD/trace2.out" QUERY_STRING="url=foo/" cgit >tmp &&+	grep "</html>" tmp &&+	test -s trace2.out+'+ test_done
diff --git a/tests/t0201-filters.sh b/tests/t0201-filters.sh
index 1ffb973..3987bdc 100755
--- a/tests/t0201-filters.sh
+++ b/tests/t0201-filters.sh
@@ -163,4 +163,12 @@ test_expect_success CGIT_LUA 'a lua filter that writes while loading still rende
 	grep "</html>" tmp
 '
 
+# A Lua build replaces write, and git writes its trace before cgit has run a
+# line of its own.
+test_expect_success CGIT_LUA 'git can trace before the filters are set up' '
+	CGIT_CONFIG="$PWD/cgitrc" GIT_TRACE2="$PWD/trace2.out" QUERY_STRING="url=foo/" cgit >tmp &&
+	grep "</html>" tmp &&
+	test -s trace2.out
+'
+
 test_done