diff options
Diffstat (limited to 'builtin-checkout.c')
| -rw-r--r-- | builtin-checkout.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/builtin-checkout.c b/builtin-checkout.c index 64f3a11ae1..527781728e 100644 --- a/builtin-checkout.c +++ b/builtin-checkout.c @@ -17,6 +17,7 @@ #include "blob.h" #include "xdiff-interface.h" #include "ll-merge.h" +#include "resolve-undo.h" static const char * const checkout_usage[] = { "git checkout [options] <branch>", @@ -167,7 +168,7 @@ static int checkout_merged(int pos, struct checkout *state) fill_mm(active_cache[pos+2]->sha1, &theirs); status = ll_merge(&result_buf, path, &ancestor, - &ours, "ours", &theirs, "theirs", 1); + &ours, "ours", &theirs, "theirs", 0); free(ancestor.ptr); free(ours.ptr); free(theirs.ptr); @@ -234,6 +235,10 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec, if (report_path_error(ps_matched, pathspec, 0)) return 1; + /* "checkout -m path" to recreate conflicted state */ + if (opts->merge) + unmerge_cache(pathspec); + /* Any unmerged paths? */ for (pos = 0; pos < active_nr; pos++) { struct cache_entry *ce = active_cache[pos]; @@ -370,6 +375,7 @@ static int merge_working_tree(struct checkout_opts *opts, if (read_cache_preload(NULL) < 0) return error("corrupt index file"); + resolve_undo_clear(); if (opts->force) { ret = reset_tree(new->commit->tree, opts, 1); if (ret) @@ -397,7 +403,7 @@ static int merge_working_tree(struct checkout_opts *opts, topts.initial_checkout = is_cache_unborn(); topts.update = 1; topts.merge = 1; - topts.gently = opts->merge; + topts.gently = opts->merge && old->commit; topts.verbose_update = !opts->quiet; topts.fn = twoway_merge; topts.dir = xcalloc(1, sizeof(*topts.dir)); @@ -422,7 +428,13 @@ static int merge_working_tree(struct checkout_opts *opts, struct merge_options o; if (!opts->merge) return 1; - parse_commit(old->commit); + + /* + * Without old->commit, the below is the same as + * the two-tree unpack we already tried and failed. + */ + if (!old->commit) + return 1; /* Do more real merge */ @@ -690,7 +702,10 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) * case 3: git checkout <something> [<paths>] * * With no paths, if <something> is a commit, that is to - * switch to the branch or detach HEAD at it. + * switch to the branch or detach HEAD at it. As a special case, + * if <something> is A...B (missing A or B means HEAD but you can + * omit at most one side), and if there is a unique merge base + * between A and B, A...B names that merge base. * * With no paths, if <something> is _not_ a commit, no -t nor -b * was given, and there is a tracking branch whose name is @@ -716,7 +731,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) if (!strcmp(arg, "-")) arg = "@{-1}"; - if (get_sha1(arg, rev)) { + if (get_sha1_mb(arg, rev)) { if (has_dash_dash) /* case (1) */ die("invalid reference: %s", arg); if (!patch_mode && @@ -743,8 +758,10 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) new.name = arg; if ((new.commit = lookup_commit_reference_gently(rev, 1))) { setup_branch_path(&new); - if (resolve_ref(new.path, rev, 1, NULL)) - new.commit = lookup_commit_reference(rev); + + if ((check_ref_format(new.path) == CHECK_REF_FORMAT_OK) && + resolve_ref(new.path, rev, 1, NULL)) + ; else new.path = NULL; parse_commit(new.commit); |