merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

1 files changed, 76 insertions, 0 deletions

diff --git a/third_party/git/t/t0091-bugreport.sh b/third_party/git/t/t0091-bugreport.sh
new file mode 100755
index 000000000000..526304ff95b3
--- /dev/null
+++ b/third_party/git/t/t0091-bugreport.sh
@@ -0,0 +1,76 @@
+#!/bin/sh
+
+test_description='git bugreport'
+
+. ./test-lib.sh
+
+# Headers "[System Info]" will be followed by a non-empty line if we put some
+# information there; we can make sure all our headers were followed by some
+# information to check if the command was successful.
+HEADER_PATTERN="^\[.*\]$"
+
+check_all_headers_populated () {
+	while read -r line
+	do
+		if test "$(grep "$HEADER_PATTERN" "$line")"
+		then
+			echo "$line"
+			read -r nextline
+			if test -z "$nextline"; then
+				return 1;
+			fi
+		fi
+	done
+}
+
+test_expect_success 'creates a report with content in the right places' '
+	test_when_finished rm git-bugreport-check-headers.txt &&
+	git bugreport -s check-headers &&
+	check_all_headers_populated <git-bugreport-check-headers.txt
+'
+
+test_expect_success 'dies if file with same name as report already exists' '
+	test_when_finished rm git-bugreport-duplicate.txt &&
+	>>git-bugreport-duplicate.txt &&
+	test_must_fail git bugreport --suffix duplicate
+'
+
+test_expect_success '--output-directory puts the report in the provided dir' '
+	test_when_finished rm -fr foo/ &&
+	git bugreport -o foo/ &&
+	test_path_is_file foo/git-bugreport-*
+'
+
+test_expect_success 'incorrect arguments abort with usage' '
+	test_must_fail git bugreport --false 2>output &&
+	test_i18ngrep usage output &&
+	test_path_is_missing git-bugreport-*
+'
+
+test_expect_success 'runs outside of a git dir' '
+	test_when_finished rm non-repo/git-bugreport-* &&
+	nongit git bugreport
+'
+
+test_expect_success 'can create leading directories outside of a git dir' '
+	test_when_finished rm -fr foo/bar/baz &&
+	nongit git bugreport -o foo/bar/baz
+'
+
+test_expect_success 'indicates populated hooks' '
+	test_when_finished rm git-bugreport-hooks.txt &&
+	test_when_finished rm -fr .git/hooks &&
+	rm -fr .git/hooks &&
+	mkdir .git/hooks &&
+	for hook in applypatch-msg prepare-commit-msg.sample
+	do
+		write_script ".git/hooks/$hook" <<-EOF || return 1
+		echo "hook $hook exists"
+		EOF
+	done &&
+	git bugreport -s hooks &&
+	grep applypatch-msg git-bugreport-hooks.txt &&
+	! grep prepare-commit-msg git-bugreport-hooks.txt
+'
+
+test_done