diff options
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | builtin/merge-index.c | 4 | ||||
| -rw-r--r-- | builtin/merge-tree.c | 92 | ||||
| -rw-r--r-- | merge-blobs.c (renamed from merge-file.c) | 4 | ||||
| -rw-r--r-- | merge-blobs.h | 8 | ||||
| -rw-r--r-- | merge-file.h | 7 | ||||
| -rw-r--r-- | merge-recursive.c | 6 | ||||
| -rwxr-xr-x | t/t4300-merge-tree.sh | 44 |
8 files changed, 117 insertions, 50 deletions
@@ -766,7 +766,7 @@ LIB_OBJS += log-tree.o LIB_OBJS += mailmap.o LIB_OBJS += match-trees.o LIB_OBJS += merge.o -LIB_OBJS += merge-file.o +LIB_OBJS += merge-blobs.o LIB_OBJS += merge-recursive.o LIB_OBJS += mergesort.o LIB_OBJS += name-hash.o diff --git a/builtin/merge-index.c b/builtin/merge-index.c index 233883258..be5e51432 100644 --- a/builtin/merge-index.c +++ b/builtin/merge-index.c @@ -42,7 +42,7 @@ static int merge_entry(int pos, const char *path) return found; } -static void merge_file(const char *path) +static void merge_one_path(const char *path) { int pos = cache_name_pos(path, strlen(path)); @@ -102,7 +102,7 @@ int cmd_merge_index(int argc, const char **argv, const char *prefix) } die("git merge-index: unknown option %s", arg); } - merge_file(arg); + merge_one_path(arg); } if (err && !quiet) die("merge program failed"); diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c index 897a563bc..e0d0b7d28 100644 --- a/builtin/merge-tree.c +++ b/builtin/merge-tree.c @@ -3,17 +3,15 @@ #include "xdiff-interface.h" #include "blob.h" #include "exec_cmd.h" -#include "merge-file.h" +#include "merge-blobs.h" static const char merge_tree_usage[] = "git merge-tree <base-tree> <branch1> <branch2>"; -static int resolve_directories = 1; struct merge_list { struct merge_list *next; struct merge_list *link; /* other stages for this object */ - unsigned int stage : 2, - flags : 30; + unsigned int stage : 2; unsigned int mode; const char *path; struct blob *blob; @@ -27,7 +25,7 @@ static void add_merge_entry(struct merge_list *entry) merge_result_end = &entry->next; } -static void merge_trees(struct tree_desc t[3], const char *base); +static void merge_trees_recursive(struct tree_desc t[3], const char *base, int df_conflict); static const char *explanation(struct merge_list *entry) { @@ -76,7 +74,7 @@ static void *result(struct merge_list *entry, unsigned long *size) their = NULL; if (entry) their = entry->blob; - return merge_file(path, base, our, their, size); + return merge_blobs(path, base, our, their, size); } static void *origin(struct merge_list *entry, unsigned long *size) @@ -174,17 +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; @@ -192,34 +190,35 @@ static void resolve(const struct traverse_info *info, struct name_entry *branch1 add_merge_entry(final); } -static int unresolved_directory(const struct traverse_info *info, struct name_entry n[3]) +static void unresolved_directory(const struct traverse_info *info, struct name_entry n[3], + int df_conflict) { char *newbase; struct name_entry *p; struct tree_desc t[3]; void *buf0, *buf1, *buf2; - if (!resolve_directories) - return 0; - p = n; - if (!p->mode) { - p++; - if (!p->mode) - p++; + for (p = n; p < n + 3; p++) { + if (p->mode && S_ISDIR(p->mode)) + break; } - if (!S_ISDIR(p->mode)) - return 0; + if (n + 3 <= p) + return; /* there is no tree here */ + newbase = traverse_path(info, p); - buf0 = fill_tree_descriptor(t+0, n[0].sha1); - buf1 = fill_tree_descriptor(t+1, n[1].sha1); - buf2 = fill_tree_descriptor(t+2, n[2].sha1); - merge_trees(t, newbase); + +#define ENTRY_SHA1(e) (((e)->mode && S_ISDIR((e)->mode)) ? (e)->sha1 : NULL) + buf0 = fill_tree_descriptor(t+0, ENTRY_SHA1(n + 0)); + buf1 = fill_tree_descriptor(t+1, ENTRY_SHA1(n + 1)); + buf2 = fill_tree_descriptor(t+2, ENTRY_SHA1(n + 2)); +#undef ENTRY_SHA1 + + merge_trees_recursive(t, newbase, df_conflict); free(buf0); free(buf1); free(buf2); free(newbase); - return 1; } @@ -242,18 +241,26 @@ static struct merge_list *link_entry(unsigned stage, const struct traverse_info static void unresolved(const struct traverse_info *info, struct name_entry n[3]) { struct merge_list *entry = NULL; + int i; + unsigned dirmask = 0, mask = 0; + + for (i = 0; i < 3; i++) { + mask |= (1 << 1); + if (n[i].mode && S_ISDIR(n[i].mode)) + dirmask |= (1 << i); + } - if (unresolved_directory(info, n)) + unresolved_directory(info, n, dirmask && (dirmask != mask)); + + if (dirmask == mask) return; - /* - * Do them in reverse order so that the resulting link - * list has the stages in order - link_entry adds new - * links at the front. - */ - entry = link_entry(3, info, n + 2, entry); - entry = link_entry(2, info, n + 1, entry); - entry = link_entry(1, info, n + 0, entry); + if (n[2].mode && !S_ISDIR(n[2].mode)) + entry = link_entry(3, info, n + 2, entry); + if (n[1].mode && !S_ISDIR(n[1].mode)) + entry = link_entry(2, info, n + 1, entry); + if (n[0].mode && !S_ISDIR(n[0].mode)) + entry = link_entry(1, info, n + 0, entry); add_merge_entry(entry); } @@ -292,20 +299,29 @@ 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; } @@ -315,15 +331,21 @@ static int threeway_callback(int n, unsigned long mask, unsigned long dirmask, s return mask; } -static void merge_trees(struct tree_desc t[3], const char *base) +static void merge_trees_recursive(struct tree_desc t[3], const char *base, int df_conflict) { struct traverse_info info; setup_traverse_info(&info, base); + info.data = &df_conflict; info.fn = threeway_callback; traverse_trees(3, t, &info); } +static void merge_trees(struct tree_desc t[3], const char *base) +{ + merge_trees_recursive(t, base, 0); +} + static void *get_tree_descriptor(struct tree_desc *desc, const char *rev) { unsigned char sha1[20]; diff --git a/merge-file.c b/merge-blobs.c index 7845528e8..57211bccb 100644 --- a/merge-file.c +++ b/merge-blobs.c @@ -3,7 +3,7 @@ #include "xdiff-interface.h" #include "ll-merge.h" #include "blob.h" -#include "merge-file.h" +#include "merge-blobs.h" static int fill_mmfile_blob(mmfile_t *f, struct blob *obj) { @@ -80,7 +80,7 @@ static int generate_common_file(mmfile_t *res, mmfile_t *f1, mmfile_t *f2) return xdi_diff(f1, f2, &xpp, &xecfg, &ecb); } -void *merge_file(const char *path, struct blob *base, struct blob *our, struct blob *their, unsigned long *size) +void *merge_blobs(const char *path, struct blob *base, struct blob *our, struct blob *their, unsigned long *size) { void *res = NULL; mmfile_t f1, f2, common; diff --git a/merge-blobs.h b/merge-blobs.h new file mode 100644 index 000000000..62b569e47 --- /dev/null +++ b/merge-blobs.h @@ -0,0 +1,8 @@ +#ifndef MERGE_BLOBS_H +#define MERGE_BLOBS_H + +#include "blob.h" + +extern void *merge_blobs(const char *, struct blob *, struct blob *, struct blob *, unsigned long *); + +#endif /* MERGE_BLOBS_H */ diff --git a/merge-file.h b/merge-file.h deleted file mode 100644 index 9b3b83ac6..000000000 --- a/merge-file.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef MERGE_FILE_H -#define MERGE_FILE_H - -extern void *merge_file(const char *path, struct blob *base, struct blob *our, - struct blob *their, unsigned long *size); - -#endif diff --git a/merge-recursive.c b/merge-recursive.c index d8820604c..33ba5dc07 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -976,7 +976,7 @@ merge_file_special_markers(struct merge_options *o, return mfi; } -static struct merge_file_info merge_file(struct merge_options *o, +static struct merge_file_info merge_file_one(struct merge_options *o, const char *path, const unsigned char *o_sha, int o_mode, const unsigned char *a_sha, int a_mode, @@ -1166,7 +1166,7 @@ static void conflict_rename_rename_1to2(struct merge_options *o, struct merge_file_info mfi; struct diff_filespec other; struct diff_filespec *add; - mfi = merge_file(o, one->path, + mfi = merge_file_one(o, one->path, one->sha1, one->mode, a->sha1, a->mode, b->sha1, b->mode, @@ -1450,7 +1450,7 @@ static int process_renames(struct merge_options *o, ren1_dst, branch2); if (o->call_depth) { struct merge_file_info mfi; - mfi = merge_file(o, ren1_dst, null_sha1, 0, + mfi = merge_file_one(o, ren1_dst, null_sha1, 0, ren1->pair->two->sha1, ren1->pair->two->mode, dst_other.sha1, dst_other.mode, branch1, branch2); diff --git a/t/t4300-merge-tree.sh b/t/t4300-merge-tree.sh index 46c3fe76d..d0b2a457b 100755 --- a/t/t4300-merge-tree.sh +++ b/t/t4300-merge-tree.sh @@ -254,4 +254,48 @@ EXPECTED test_cmp expected actual ' +test_expect_success '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_success '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 |