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, 0 insertions, 138 deletions

diff --git a/third_party/git/t/t7609-merge-co-error-msgs.sh b/third_party/git/t/t7609-merge-co-error-msgs.sh
deleted file mode 100755
index e90413204e..0000000000
--- a/third_party/git/t/t7609-merge-co-error-msgs.sh
+++ /dev/null
@@ -1,138 +0,0 @@
-#!/bin/sh
-
-test_description='unpack-trees error messages'
-
-. ./test-lib.sh
-
-
-test_expect_success 'setup' '
-	echo one >one &&
-	git add one &&
-	git commit -a -m First &&
-
-	git checkout -b branch &&
-	echo two >two &&
-	echo three >three &&
-	echo four >four &&
-	echo five >five &&
-	git add two three four five &&
-	git commit -m Second &&
-
-	git checkout master &&
-	echo other >two &&
-	echo other >three &&
-	echo other >four &&
-	echo other >five
-'
-
-cat >expect <<\EOF
-error: The following untracked working tree files would be overwritten by merge:
-	five
-	four
-	three
-	two
-Please move or remove them before you merge.
-Aborting
-EOF
-
-test_expect_success 'untracked files overwritten by merge (fast and non-fast forward)' '
-	test_must_fail git merge branch 2>out &&
-	test_i18ncmp out expect &&
-	git commit --allow-empty -m empty &&
-	(
-		GIT_MERGE_VERBOSITY=0 &&
-		export GIT_MERGE_VERBOSITY &&
-		test_must_fail git merge branch 2>out2
-	) &&
-	test_i18ncmp out2 expect &&
-	git reset --hard HEAD^
-'
-
-cat >expect <<\EOF
-error: Your local changes to the following files would be overwritten by merge:
-	four
-	three
-	two
-Please commit your changes or stash them before you merge.
-error: The following untracked working tree files would be overwritten by merge:
-	five
-Please move or remove them before you merge.
-Aborting
-EOF
-
-test_expect_success 'untracked files or local changes ovewritten by merge' '
-	git add two &&
-	git add three &&
-	git add four &&
-	test_must_fail git merge branch 2>out &&
-	test_i18ncmp out expect
-'
-
-cat >expect <<\EOF
-error: Your local changes to the following files would be overwritten by checkout:
-	rep/one
-	rep/two
-Please commit your changes or stash them before you switch branches.
-Aborting
-EOF
-
-test_expect_success 'cannot switch branches because of local changes' '
-	git add five &&
-	mkdir rep &&
-	echo one >rep/one &&
-	echo two >rep/two &&
-	git add rep/one rep/two &&
-	git commit -m Fourth &&
-	git checkout master &&
-	echo uno >rep/one &&
-	echo dos >rep/two &&
-	test_must_fail git checkout branch 2>out &&
-	test_i18ncmp out expect
-'
-
-cat >expect <<\EOF
-error: Your local changes to the following files would be overwritten by checkout:
-	rep/one
-	rep/two
-Please commit your changes or stash them before you switch branches.
-Aborting
-EOF
-
-test_expect_success 'not uptodate file porcelain checkout error' '
-	git add rep/one rep/two &&
-	test_must_fail git checkout branch 2>out &&
-	test_i18ncmp out expect
-'
-
-cat >expect <<\EOF
-error: Updating the following directories would lose untracked files in them:
-	rep
-	rep2
-
-Aborting
-EOF
-
-test_expect_success 'not_uptodate_dir porcelain checkout error' '
-	git init uptodate &&
-	cd uptodate &&
-	mkdir rep &&
-	mkdir rep2 &&
-	touch rep/foo &&
-	touch rep2/foo &&
-	git add rep/foo rep2/foo &&
-	git commit -m init &&
-	git checkout -b branch &&
-	git rm rep -r &&
-	git rm rep2 -r &&
-	>rep &&
-	>rep2 &&
-	git add rep rep2&&
-	git commit -m "added test as a file" &&
-	git checkout master &&
-	>rep/untracked-file &&
-	>rep2/untracked-file &&
-	test_must_fail git checkout branch 2>out &&
-	test_i18ncmp out ../expect
-'
-
-test_done