plots: support x-dict in nested dvc.yaml

dvc/repo/plots/__init__.py

@@ -423,11 +423,17 @@ def _id_is_path(plot_props=None):
 
 def _adjust_sources(fs, plot_props, config_dir):
     new_plot_props = deepcopy(plot_props)
-    old_y = new_plot_props.pop("y", {})
-    new_y = {}
-    for filepath, val in old_y.items():
-        new_y[_normpath(fs.join(config_dir, filepath))] = val
-    new_plot_props["y"] = new_y
+    for axis in ["x", "y"]:
+        x_is_inferred = axis == "x" and (
+            axis not in new_plot_props or isinstance(new_plot_props[axis], str)
+        )
+        if x_is_inferred:
+            continue
+        old = new_plot_props.pop(axis, {})
+        new = {}
+        for filepath, val in old.items():
+            new[_normpath(fs.join(config_dir, filepath))] = val
+        new_plot_props[axis] = new
     return new_plot_props
 
 

tests/func/plots/test_show.py

@@ -172,6 +172,87 @@ def test_plots_show_overlap(tmp_dir, dvc, run_copy_metrics, clear_before_run):
     )
 
 
+def test_plots_show_nested_x_dict(tmp_dir, dvc, scm):
+    rel_pipeline_dir = "pipelines/data-increment"
+
+    pipeline_rel_dvclive_metrics_dir = "dvclive/plots/metrics"
+    dvc_rel_dvclive_metrics_dir = (
+        f"{rel_pipeline_dir}/{pipeline_rel_dvclive_metrics_dir}"
+    )
+
+    pipeline_dir = tmp_dir / rel_pipeline_dir
+    dvclive_metrics_dir = pipeline_dir / pipeline_rel_dvclive_metrics_dir
+    dvclive_metrics_dir.mkdir(parents=True)
+
+    def _get_plot_defn(rel_dir: str) -> dict:
+        return {
+            "template": "simple",
+            "x": {f"{rel_dir}/Max_Leaf_Nodes.tsv": "Max_Leaf_Nodes"},
+            "y": {f"{rel_dir}/Error.tsv": "Error"},
+        }
+
+    (pipeline_dir / "dvc.yaml").dump(
+        {
+            "plots": [
+                {
+                    "Error vs max_leaf_nodes": _get_plot_defn(
+                        pipeline_rel_dvclive_metrics_dir
+                    )
+                },
+            ]
+        },
+    )
+
+    dvclive_metrics_dir.gen(
+        {
+            "Error.tsv": "step\tError\n" "0\t0.11\n" "1\t0.22\n" "2\t0.44\n",
+            "Max_Leaf_Nodes.tsv": "step\tMax_Leaf_Nodes\n"
+            "0\t5\n"
+            "1\t50\n"
+            "2\t500\n",
+        }
+    )
+
+    scm.commit("add dvc.yaml and dvclive metrics")
+
+    result = dvc.plots.show()
+    assert result == {
+        "workspace": {
+            "definitions": {
+                "data": {
+                    f"{rel_pipeline_dir}/dvc.yaml": {
+                        "data": {
+                            "Error vs max_leaf_nodes": _get_plot_defn(
+                                dvc_rel_dvclive_metrics_dir
+                            )
+                        },
+                    }
+                }
+            },
+            "sources": {
+                "data": {
+                    f"{dvc_rel_dvclive_metrics_dir}/Error.tsv": {
+                        "data": [
+                            {"Error": "0.11", "step": "0"},
+                            {"Error": "0.22", "step": "1"},
+                            {"Error": "0.44", "step": "2"},
+                        ],
+                        "props": {},
+                    },
+                    f"{dvc_rel_dvclive_metrics_dir}/Max_Leaf_Nodes.tsv": {
+                        "data": [
+                            {"Max_Leaf_Nodes": "5", "step": "0"},
+                            {"Max_Leaf_Nodes": "50", "step": "1"},
+                            {"Max_Leaf_Nodes": "500", "step": "2"},
+                        ],
+                        "props": {},
+                    },
+                }
+            },
+        }
+    }
+
+
 def test_dir_plots(tmp_dir, dvc, run_copy_metrics):
     subdir = tmp_dir / "subdir"
     subdir.mkdir()

tests/integration/plots/test_plots.py

@@ -481,3 +481,138 @@ def test_repo_with_dvclive_plots(tmp_dir, capsys, repo_with_dvclive_plots):
         }
         assert json_result == expected_result
         assert split_json_result == expected_result
+
+
+@pytest.mark.vscode
+def test_nested_x_defn_collection(tmp_dir, dvc, scm, capsys):
+    rel_pipeline_dir = "pipelines/data-increment"
+    pipeline_rel_dvclive_metrics_dir = "dvclive/plots/metrics"
+    pipeline_rel_other_logger_dir = "other/logger"
+
+    dvc_rel_dvclive_metrics_dir = (
+        f"{rel_pipeline_dir}/{pipeline_rel_dvclive_metrics_dir}"
+    )
+    dvc_rel_other_logger_dir = f"{rel_pipeline_dir}/{pipeline_rel_other_logger_dir}"
+
+    pipeline_dir = tmp_dir / rel_pipeline_dir
+    dvclive_metrics_dir = pipeline_dir / pipeline_rel_dvclive_metrics_dir
+    dvclive_metrics_dir.mkdir(parents=True)
+    other_logger_dir = pipeline_dir / pipeline_rel_other_logger_dir
+    other_logger_dir.mkdir(parents=True)
+
+    (pipeline_dir / "dvc.yaml").dump(
+        {
+            "plots": [
+                {
+                    "Error vs max_leaf_nodes": {
+                        "template": "simple",
+                        "x": {
+                            f"{pipeline_rel_dvclive_metrics_dir}"
+                            "/Max_Leaf_Nodes.tsv": "Max_Leaf_Nodes"
+                        },
+                        "y": {f"{pipeline_rel_dvclive_metrics_dir}/Error.tsv": "Error"},
+                    }
+                },
+                {
+                    f"{pipeline_rel_other_logger_dir}/multiple_metrics.json": {
+                        "x": "x",
+                        "y": ["y1", "y2"],
+                    },
+                },
+                {
+                    f"{pipeline_rel_dvclive_metrics_dir}/Error.tsv": {"y": ["Error"]},
+                },
+                {
+                    "max leaf nodes": {
+                        "y": {
+                            f"{pipeline_rel_dvclive_metrics_dir}"
+                            "/Max_Leaf_Nodes.tsv": "Max_Leaf_Nodes"
+                        }
+                    },
+                },
+            ]
+        },
+    )
+    dvclive_metrics_dir.gen(
+        {
+            "Error.tsv": "step\tError\n" "0\t0.11\n" "1\t0.22\n" "2\t0.44\n",
+            "Max_Leaf_Nodes.tsv": "step\tMax_Leaf_Nodes\n"
+            "0\t5\n"
+            "1\t50\n"
+            "2\t500\n",
+        }
+    )
+    (other_logger_dir / "multiple_metrics.json").dump(
+        [
+            {"x": 0, "y1": 0.1, "y2": 10},
+            {"x": 1, "y1": 0.2, "y2": 22},
+        ]
+    )
+
+    scm.commit("add dvc.yaml and metrics")
+
+    _, _, split_json_result = call(capsys, subcommand="diff")
+    assert len(split_json_result.keys()) == 1
+    assert len(split_json_result["data"].keys()) == 4
+
+    separate_x_file = split_json_result["data"]["Error vs max_leaf_nodes"][0]
+
+    assert separate_x_file["anchor_definitions"]["<DVC_METRIC_DATA>"] == [
+        {"Error": "0.11", "Max_Leaf_Nodes": "5", "step": "0", "rev": "workspace"},
+        {"Error": "0.22", "Max_Leaf_Nodes": "50", "step": "1", "rev": "workspace"},
+        {"Error": "0.44", "Max_Leaf_Nodes": "500", "step": "2", "rev": "workspace"},
+    ]
+
+    same_x_file = split_json_result["data"][
+        f"{dvc_rel_other_logger_dir}/multiple_metrics.json"
+    ][0]
+    assert same_x_file["anchor_definitions"]["<DVC_METRIC_DATA>"] == [
+        {
+            "x": 0,
+            "y1": 0.1,
+            "y2": 10,
+            "dvc_inferred_y_value": 0.1,
+            "field": "y1",
+            "rev": "workspace",
+        },
+        {
+            "x": 1,
+            "y1": 0.2,
+            "y2": 22,
+            "dvc_inferred_y_value": 0.2,
+            "field": "y1",
+            "rev": "workspace",
+        },
+        {
+            "x": 0,
+            "y1": 0.1,
+            "y2": 10,
+            "dvc_inferred_y_value": 10,
+            "field": "y2",
+            "rev": "workspace",
+        },
+        {
+            "x": 1,
+            "y1": 0.2,
+            "y2": 22,
+            "dvc_inferred_y_value": 22,
+            "field": "y2",
+            "rev": "workspace",
+        },
+    ]
+
+    inferred_x_from_str = split_json_result["data"][
+        f"{dvc_rel_dvclive_metrics_dir}/Error.tsv"
+    ][0]
+    assert inferred_x_from_str["anchor_definitions"]["<DVC_METRIC_DATA>"] == [
+        {"step": 0, "Error": "0.11", "rev": "workspace"},
+        {"step": 1, "Error": "0.22", "rev": "workspace"},
+        {"step": 2, "Error": "0.44", "rev": "workspace"},
+    ]
+
+    inferred_x_from_dict = split_json_result["data"]["max leaf nodes"][0]
+    assert inferred_x_from_dict["anchor_definitions"]["<DVC_METRIC_DATA>"] == [
+        {"step": 0, "Max_Leaf_Nodes": "5", "rev": "workspace"},
+        {"step": 1, "Max_Leaf_Nodes": "50", "rev": "workspace"},
+        {"step": 2, "Max_Leaf_Nodes": "500", "rev": "workspace"},
+    ]