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Diffstat (limited to 'builtin/pull.c')
-rw-r--r--builtin/pull.c93
1 files changed, 21 insertions, 72 deletions
diff --git a/builtin/pull.c b/builtin/pull.c
index 398aae16c0..3ecb881b0b 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -17,6 +17,7 @@
#include "revision.h"
#include "tempfile.h"
#include "lockfile.h"
+#include "wt-status.h"
enum rebase_type {
REBASE_INVALID = -1,
@@ -326,73 +327,6 @@ static int git_pull_config(const char *var, const char *value, void *cb)
}
/**
- * Returns 1 if there are unstaged changes, 0 otherwise.
- */
-static int has_unstaged_changes(const char *prefix)
-{
- struct rev_info rev_info;
- int result;
-
- init_revisions(&rev_info, prefix);
- DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
- DIFF_OPT_SET(&rev_info.diffopt, QUICK);
- diff_setup_done(&rev_info.diffopt);
- result = run_diff_files(&rev_info, 0);
- return diff_result_code(&rev_info.diffopt, result);
-}
-
-/**
- * Returns 1 if there are uncommitted changes, 0 otherwise.
- */
-static int has_uncommitted_changes(const char *prefix)
-{
- struct rev_info rev_info;
- int result;
-
- if (is_cache_unborn())
- return 0;
-
- init_revisions(&rev_info, prefix);
- DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
- DIFF_OPT_SET(&rev_info.diffopt, QUICK);
- add_head_to_pending(&rev_info);
- diff_setup_done(&rev_info.diffopt);
- result = run_diff_index(&rev_info, 1);
- return diff_result_code(&rev_info.diffopt, result);
-}
-
-/**
- * If the work tree has unstaged or uncommitted changes, dies with the
- * appropriate message.
- */
-static void die_on_unclean_work_tree(const char *prefix)
-{
- struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
- int do_die = 0;
-
- hold_locked_index(lock_file, 0);
- refresh_cache(REFRESH_QUIET);
- update_index_if_able(&the_index, lock_file);
- rollback_lock_file(lock_file);
-
- if (has_unstaged_changes(prefix)) {
- error(_("Cannot pull with rebase: You have unstaged changes."));
- do_die = 1;
- }
-
- if (has_uncommitted_changes(prefix)) {
- if (do_die)
- error(_("Additionally, your index contains uncommitted changes."));
- else
- error(_("Cannot pull with rebase: Your index contains uncommitted changes."));
- do_die = 1;
- }
-
- if (do_die)
- exit(1);
-}
-
-/**
* Appends merge candidates from FETCH_HEAD that are not marked not-for-merge
* into merge_heads.
*/
@@ -875,7 +809,8 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
die(_("Updating an unborn branch with changes added to the index."));
if (!autostash)
- die_on_unclean_work_tree(prefix);
+ require_clean_work_tree(N_("pull with rebase"),
+ _("please commit or stash them."), 1, 0);
if (get_rebase_fork_point(rebase_fork_point, repo, *refspecs))
hashclr(rebase_fork_point);
@@ -922,10 +857,24 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
if (merge_heads.nr > 1)
die(_("Cannot merge multiple branches into empty head."));
return pull_into_void(*merge_heads.sha1, curr_head);
- } else if (opt_rebase) {
- if (merge_heads.nr > 1)
- die(_("Cannot rebase onto multiple branches."));
+ }
+ if (opt_rebase && merge_heads.nr > 1)
+ die(_("Cannot rebase onto multiple branches."));
+
+ if (opt_rebase) {
+ struct commit_list *list = NULL;
+ struct commit *merge_head, *head;
+
+ head = lookup_commit_reference(orig_head);
+ commit_list_insert(head, &list);
+ merge_head = lookup_commit_reference(merge_heads.sha1[0]);
+ if (is_descendant_of(merge_head, list)) {
+ /* we can fast-forward this without invoking rebase */
+ opt_ff = "--ff-only";
+ return run_merge();
+ }
return run_rebase(curr_head, *merge_heads.sha1, rebase_fork_point);
- } else
+ } else {
return run_merge();
+ }
}