Pass 'not' to commit count (#24473)

Due to #24409 , we can now specify '--not' when getting all commits from
a repo to exclude commits from a different branch.

When I wrote that PR, I forgot to also update the code that counts the
number of commits in the repo. So now, if the --not option is used, it
may return too many commits, which can indicate that another page of
data is available when it is not.

This PR passes --not to the commands that count the number of commits in
a repo

modules/git/commit_test.go

@@ -14,11 +14,30 @@ import (
 func TestCommitsCount(t *testing.T) {
 	bareRepo1Path := filepath.Join(testReposDir, "repo1_bare")
 
-	commitsCount, err := CommitsCount(DefaultContext, bareRepo1Path, "8006ff9adbf0cb94da7dad9e537e53817f9fa5c0")
+	commitsCount, err := CommitsCount(DefaultContext,
+		CommitsCountOptions{
+			RepoPath: bareRepo1Path,
+			Revision: []string{"8006ff9adbf0cb94da7dad9e537e53817f9fa5c0"},
+		})
+
 	assert.NoError(t, err)
 	assert.Equal(t, int64(3), commitsCount)
 }
 
+func TestCommitsCountWithoutBase(t *testing.T) {
+	bareRepo1Path := filepath.Join(testReposDir, "repo1_bare")
+
+	commitsCount, err := CommitsCount(DefaultContext,
+		CommitsCountOptions{
+			RepoPath: bareRepo1Path,
+			Not:      "master",
+			Revision: []string{"branch1"},
+		})
+
+	assert.NoError(t, err)
+	assert.Equal(t, int64(2), commitsCount)
+}
+
 func TestGetFullCommitID(t *testing.T) {
 	bareRepo1Path := filepath.Join(testReposDir, "repo1_bare")