From ea5070c91f23e41a88dec48d2f8d96444c2d647a Mon Sep 17 00:00:00 2001 From: Jens Lehmann Date: Wed, 25 May 2011 22:10:41 +0200 Subject: Teach read-tree the -n|--dry-run option The option can be used to check if read-tree with the same set of other options like "-m" and "-u" would succeed without actually changing either the index or the working tree. The relevant tests in the t10?? range were extended to do a read-tree -n before the real read-tree to make sure neither the index nor any local files were changed with -n and the same exit code as without -n is returned. The helper functions added for that purpose reside in the new t/lib-read-tree.sh file. The only exception is #13 in t1004 ("unlinking an un-unlink-able symlink"). As this is an issue of wrong directory permissions it is not detected with -n. Signed-off-by: Jens Lehmann Signed-off-by: Junio C Hamano --- t/lib-read-tree.sh | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 t/lib-read-tree.sh (limited to 't/lib-read-tree.sh') diff --git a/t/lib-read-tree.sh b/t/lib-read-tree.sh new file mode 100644 index 0000000000..abc2c6f57f --- /dev/null +++ b/t/lib-read-tree.sh @@ -0,0 +1,43 @@ +#!/bin/sh +# +# Helper functions to check if read-tree would succeed/fail as expected with +# and without the dry-run option. They also test that the dry-run does not +# write the index and that together with -u it doesn't touch the work tree. +# +read_tree_must_succeed () { + git ls-files -s >pre-dry-run && + git read-tree -n "$@" && + git ls-files -s >post-dry-run && + test_cmp pre-dry-run post-dry-run && + git read-tree "$@" +} + +read_tree_must_fail () { + git ls-files -s >pre-dry-run && + test_must_fail git read-tree -n "$@" && + git ls-files -s >post-dry-run && + test_cmp pre-dry-run post-dry-run && + test_must_fail git read-tree "$@" +} + +read_tree_u_must_succeed () { + git ls-files -s >pre-dry-run && + git diff-files -p >pre-dry-run-wt && + git read-tree -n "$@" && + git ls-files -s >post-dry-run && + git diff-files -p >post-dry-run-wt && + test_cmp pre-dry-run post-dry-run && + test_cmp pre-dry-run-wt post-dry-run-wt && + git read-tree "$@" +} + +read_tree_u_must_fail () { + git ls-files -s >pre-dry-run && + git diff-files -p >pre-dry-run-wt && + test_must_fail git read-tree -n "$@" && + git ls-files -s >post-dry-run && + git diff-files -p >post-dry-run-wt && + test_cmp pre-dry-run post-dry-run && + test_cmp pre-dry-run-wt post-dry-run-wt && + test_must_fail git read-tree "$@" +} -- cgit v1.2.3