Re-implement the behavior introduced by f9189cf (pull --rebase: exit
early when the working directory is dirty, 2008-05-21).
Signed-off-by: Paul Tan <pyoka...@gmail.com>
---
builtin/pull.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 76 insertions(+), 1 deletion(-)
diff --git a/builtin/pull.c b/builtin/pull.c
index e4098d0..a379c1f 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -14,6 +14,8 @@
#include "remote.h"
#include "dir.h"
#include "refs.h"
+#include "revision.h"
+#include "lockfile.h"
enum rebase_type {
REBASE_INVALID = -1,
@@ -295,6 +297,73 @@ static enum rebase_type config_get_rebase(void)
}
/**
+ * 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.
*/
@@ -750,9 +819,15 @@ int cmd_pull(int argc, const char **argv, const char
*prefix)
if (get_sha1("HEAD", orig_head))
hashclr(orig_head);
- if (opt_rebase)
+ if (opt_rebase) {
+ if (is_null_sha1(orig_head) && !is_cache_unborn())
+ die(_("Updating an unborn branch with changes added to
the index."));
+
+ die_on_unclean_work_tree(prefix);
+
if (get_rebase_fork_point(rebase_fork_point, repo, *refspecs))
hashclr(rebase_fork_point);
+ }
if (run_fetch(repo, refspecs))
return 1;
--
2.1.4
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