diff options
| -rw-r--r-- | builtin/merge-tree.c | 26 | ||||
| -rwxr-xr-x | t/t4300-merge-tree.sh | 44 |
2 files changed, 66 insertions, 4 deletions
diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c index 95de162263..5704d51050 100644 --- a/builtin/merge-tree.c +++ b/builtin/merge-tree.c @@ -172,17 +172,17 @@ static char *traverse_path(const struct traverse_info *info, const struct name_e return make_traverse_path(path, info, n); } -static void resolve(const struct traverse_info *info, struct name_entry *branch1, struct name_entry *result) +static void resolve(const struct traverse_info *info, struct name_entry *ours, struct name_entry *result) { struct merge_list *orig, *final; const char *path; - /* If it's already branch1, don't bother showing it */ - if (!branch1) + /* If it's already ours, don't bother showing it */ + if (!ours) return; path = traverse_path(info, result); - orig = create_entry(2, branch1->mode, branch1->sha1, path); + orig = create_entry(2, ours->mode, ours->sha1, path); final = create_entry(0, result->mode, result->sha1, path); final->link = orig; @@ -205,6 +205,15 @@ static int unresolved_directory(const struct traverse_info *info, struct name_en } if (!S_ISDIR(p->mode)) return 0; + /* + * NEEDSWORK: this is broken. The path can originally be a file + * and then one side may have turned it into a directory, in which + * case we return and let the three-way merge as if the tree were + * a regular file. If the path that was originally a tree is + * now a file in either branch, fill_tree_descriptor() below will + * die when fed a blob sha1. + */ + newbase = traverse_path(info, p); buf0 = fill_tree_descriptor(t+0, n[0].sha1); buf1 = fill_tree_descriptor(t+1, n[1].sha1); @@ -288,20 +297,29 @@ static int threeway_callback(int n, unsigned long mask, unsigned long dirmask, s /* Same in both? */ if (same_entry(entry+1, entry+2)) { if (entry[0].sha1) { + /* Modified identically */ resolve(info, NULL, entry+1); return mask; } + /* "Both added the same" is left unresolved */ } if (same_entry(entry+0, entry+1)) { if (entry[2].sha1 && !S_ISDIR(entry[2].mode)) { + /* We did not touch, they modified -- take theirs */ resolve(info, entry+1, entry+2); return mask; } + /* + * If we did not touch a directory but they made it + * into a file, we fall through and unresolved() + * recurses down. Likewise for the opposite case. + */ } if (same_entry(entry+0, entry+2)) { if (entry[1].sha1 && !S_ISDIR(entry[1].mode)) { + /* We modified, they did not touch -- take ours */ resolve(info, NULL, entry+1); return mask; } diff --git a/t/t4300-merge-tree.sh b/t/t4300-merge-tree.sh index 46c3fe76d3..03e8fcad35 100755 --- a/t/t4300-merge-tree.sh +++ b/t/t4300-merge-tree.sh @@ -254,4 +254,48 @@ EXPECTED test_cmp expected actual ' +test_expect_failure 'turn file to tree' ' + git reset --hard initial && + rm initial-file && + mkdir initial-file && + test_commit "turn-file-to-tree" "initial-file/ONE" "CCC" && + git merge-tree initial initial turn-file-to-tree >actual && + cat >expect <<-\EOF && + added in remote + their 100644 43aa4fdec31eb92e1fdc2f0ce6ea9ddb7c32bcf7 initial-file/ONE + @@ -0,0 +1 @@ + +CCC + removed in remote + base 100644 e79c5e8f964493290a409888d5413a737e8e5dd5 initial-file + our 100644 e79c5e8f964493290a409888d5413a737e8e5dd5 initial-file + @@ -1 +0,0 @@ + -initial + EOF + test_cmp expect actual +' + +test_expect_failure 'turn tree to file' ' + git reset --hard initial && + mkdir dir && + test_commit "add-tree" "dir/path" "AAA" && + test_commit "add-another-tree" "dir/another" "BBB" && + rm -fr dir && + test_commit "make-file" "dir" "CCC" && + git merge-tree add-tree add-another-tree make-file >actual && + cat >expect <<-\EOF && + added in local + our 100644 ba629238ca89489f2b350e196ca445e09d8bb834 dir/another + removed in remote + base 100644 43d5a8ed6ef6c00ff775008633f95787d088285d dir/path + our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d dir/path + @@ -1 +0,0 @@ + -AAA + added in remote + their 100644 43aa4fdec31eb92e1fdc2f0ce6ea9ddb7c32bcf7 dir + @@ -0,0 +1 @@ + +CCC + EOF + test_cmp expect actual +' + test_done |