commit - 1a36436d4d4024fada20498cad3039950c4b2da2
commit + a484d721b0152ab353a510e75b2aab3cd1aebee3
blob - 96fece4634c0766c9a3aaef60f3df693fc56fc11
blob + 01f304f9b44e4b62576f8d26aca2b3756f8d99b0
--- got/got.c
+++ got/got.c
@@ -284,6 +284,10 @@ static void
 checkout_progress(void *arg, unsigned char status, const char *path)
 {
 	char *worktree_path = arg;
+
+	/* Base commit bump happens silently. */
+	if (status == GOT_STATUS_BUMP_BASE)
+		return;
 
 	while (path[0] == '/')
 		path++;
@@ -567,6 +571,11 @@ update_progress(void *arg, unsigned char status, const
 		return;
 
 	*did_something = 1;
+
+	/* Base commit bump happens silently. */
+	if (status == GOT_STATUS_BUMP_BASE)
+		return;
+
 	while (path[0] == '/')
 		path++;
 	printf("%c  %s\n", status, path);
blob - 6ab8418c059fa507bf8dfbb1f840b9f94d47a5d3
blob + 2dd6e8cfae54c6bc3ebc6d27f919785066d57529
--- include/got_worktree.h
+++ include/got_worktree.h
@@ -31,6 +31,7 @@ struct got_commitable;
 #define GOT_STATUS_OBSTRUCTED	'~'
 #define GOT_STATUS_REVERT	'R'
 #define GOT_STATUS_CANNOT_DELETE 'd'
+#define GOT_STATUS_BUMP_BASE	'b'
 
 /*
  * Attempt to initialize a new work tree on disk.
blob - acc38bf248e0148b45afacb9d4c7f2ae7db08b60
blob + d541a30b5fbfe09481bfcf827b523db052fb9afb
--- lib/worktree.c
+++ lib/worktree.c
@@ -1460,6 +1460,8 @@ struct bump_base_commit_id_arg {
 	const char *path;
 	size_t path_len;
 	const char *entry_name;
+	got_worktree_checkout_cb progress_cb;
+	void *progress_arg;
 };
 
 /* Bump base commit ID of all files within an updated part of the work tree. */
@@ -1474,6 +1476,7 @@ bump_base_commit_id(void *arg, struct got_fileindex_en
 	} else if (!got_path_is_child(ie->path, a->path, a->path_len))
 		return NULL;
 
+	(*a->progress_cb)(a->progress_arg, GOT_STATUS_BUMP_BASE, ie->path);
 	memcpy(ie->commit_sha1, a->base_commit_id->sha1, SHA1_DIGEST_LENGTH);
 	return NULL;
 }
@@ -1644,6 +1647,8 @@ got_worktree_checkout_files(struct got_worktree *workt
 	bbc_arg.entry_name = entry_name;
 	bbc_arg.path = path;
 	bbc_arg.path_len = strlen(path);
+	bbc_arg.progress_cb = progress_cb;
+	bbc_arg.progress_arg = progress_arg;
 	err = got_fileindex_for_each_entry_safe(fileindex,
 	    bump_base_commit_id, &bbc_arg);
 sync:
blob - 07a2d33972a8a0313ab84aa837a7724d06cc13bc
blob + ce179b0abdbeedd05c12868f359472f1a1517349
--- regress/cmdline/update.sh
+++ regress/cmdline/update.sh
@@ -1470,7 +1470,9 @@ function test_update_bumps_base_commit_id {
 
 	(cd $testroot/wt && got update > $testroot/stdout)
 
-	echo "Already up-to-date" > $testroot/stdout.expected
+	echo -n "Updated to commit " >> $testroot/stdout.expected
+	git_show_head $testroot/repo >> $testroot/stdout.expected
+	echo >> $testroot/stdout.expected
 	cmp -s $testroot/stdout.expected $testroot/stdout
 	ret="$?"
 	if [ "$ret" != "0" ]; then