feat: commit changes made by Bumper

The git tag then points at that commit.

2 files changed, 19 insertions, 7 deletions

diff --git a/subplot/bumper.py b/subplot/bumper.py
index 329173c..e340927 100644
--- a/subplot/bumper.py
+++ b/subplot/bumper.py
@@ -71,17 +71,26 @@ def only_these_files_exist_in(ctx, filenames=None, dirname=None):
     assert_eq(expect, actual)
 
 
-def git_tag_points_at(ctx, dirname=None, tag=None, varname=None):
+def git_tag_exists(ctx, dirname=None, tag=None):
     runcmd_run = globals()["runcmd_run"]
     runcmd_get_stdout = globals()["runcmd_get_stdout"]
     runcmd_exit_code_is_zero = globals()["runcmd_exit_code_is_zero"]
 
+    logging.debug(f"expecting tag {tag} to exist")
     runcmd_run(ctx, ["git", "show", "--raw", tag], cwd=dirname)
     runcmd_exit_code_is_zero(ctx)
-
     output = runcmd_get_stdout(ctx)
-    commit = ctx[varname]
-    logging.debug(f"expecting tag {tag} to point at {commit}")
     logging.debug(f"tag: {output!r}")
     assert output.startswith(f"tag {tag}\n")
-    assert f"\ncommit {commit}" in output
+
+
+def git_working_tree_is_clean(ctx, dirname=None):
+    runcmd_run = globals()["runcmd_run"]
+    runcmd_get_stdout = globals()["runcmd_get_stdout"]
+    runcmd_exit_code_is_zero = globals()["runcmd_exit_code_is_zero"]
+    assert_eq = globals()["assert_eq"]
+
+    runcmd_run(ctx, ["git", "status", "--porcelain"], cwd=dirname)
+    runcmd_exit_code_is_zero(ctx)
+    output = runcmd_get_stdout(ctx)
+    assert_eq(output, "")
diff --git a/subplot/bumper.yaml b/subplot/bumper.yaml
index d1ee4f0..50cf83c 100644
--- a/subplot/bumper.yaml
+++ b/subplot/bumper.yaml
@@ -16,5 +16,8 @@
 - then: "only files {filenames:text} exist in {dirname}"
   function: only_these_files_exist_in
 
-- then: "in {dirname}, git tag {tag} is a signed tag pointing at <{varname}>"
-  function: git_tag_points_at
+- then: "in {dirname}, git tag {tag} is a signed tag"
+  function: git_tag_exists
+
+- then: "all changes in {dirname} are committed"
+  function: git_working_tree_is_clean