add the cache

.gitignore

@@ -1,4 +1,3 @@
 __pycache__
 venv
-/cache
 /dist

cache/artifacts.json

@@ -0,0 +1,26 @@
+{
+    "content": {
+        "path": "fetch",
+        "ext": ".json",
+        "type": "generic",
+        "filepath": "fetch/content.json"
+    },
+    "stats": {
+        "path": "fetch",
+        "ext": ".json",
+        "type": "generic",
+        "filepath": "fetch/stats.json"
+    },
+    "result": {
+        "path": "fetch",
+        "ext": ".json",
+        "type": "generic",
+        "filepath": "fetch/result.json"
+    },
+    "website": {
+        "path": "fetch",
+        "ext": ".json",
+        "type": "generic",
+        "filepath": "fetch/website.json"
+    }
+}

cache/dependencies.dot

@@ -0,0 +1,18 @@
+digraph G {
+    A [label="fetch-data-1", class="job", shape="box"];
+    B [label="content", class="artifact", shape="ellipse"];
+    C [label="calculate-functions", class="job", shape="box"];
+    D [label="stats", class="artifact", shape="ellipse"];
+    E [label="compute-statistics", class="job", shape="box"];
+    F [label="result", class="artifact", shape="ellipse"];
+    G [label="generate-website", class="job", shape="box"];
+    H [label="website", class="artifact", shape="ellipse"];
+    A -> B;
+    B -> C;
+    C -> D;
+    B -> E;
+    E -> F;
+    D -> G;
+    F -> G;
+    G -> H;
+}

cache/dependencies.json

@@ -0,0 +1,70 @@
+{
+    "nodes": [
+        {
+            "label": "fetch-data-1",
+            "class": "job"
+        },
+        {
+            "label": "content",
+            "class": "artifact"
+        },
+        {
+            "label": "calculate-functions",
+            "class": "job"
+        },
+        {
+            "label": "stats",
+            "class": "artifact"
+        },
+        {
+            "label": "compute-statistics",
+            "class": "job"
+        },
+        {
+            "label": "result",
+            "class": "artifact"
+        },
+        {
+            "label": "generate-website",
+            "class": "job"
+        },
+        {
+            "label": "website",
+            "class": "artifact"
+        }
+    ],
+    "edges": [
+        {
+            "source": "fetch-data-1",
+            "target": "content"
+        },
+        {
+            "source": "content",
+            "target": "calculate-functions"
+        },
+        {
+            "source": "calculate-functions",
+            "target": "stats"
+        },
+        {
+            "source": "content",
+            "target": "compute-statistics"
+        },
+        {
+            "source": "compute-statistics",
+            "target": "result"
+        },
+        {
+            "source": "stats",
+            "target": "generate-website"
+        },
+        {
+            "source": "result",
+            "target": "generate-website"
+        },
+        {
+            "source": "generate-website",
+            "target": "website"
+        }
+    ]
+}

cache/fetch/content.json

@@ -0,0 +1,3 @@
+{
+    "hello": "world"
+}

cache/fetch/result.json

@@ -0,0 +1,3 @@
+{
+    "result": 6
+}

cache/fetch/stats.json

@@ -0,0 +1,3 @@
+{
+    "stats": 5
+}

cache/fetch/website.json

@@ -0,0 +1,3 @@
+{
+    "web": 10
+}

cache/pipeline.json

@@ -0,0 +1,34 @@
+[
+    {
+        "stage": "fetch",
+        "job": "fetch-data-1",
+        "start": "2024-04-21 09:50:41.486325",
+        "stop": "2024-04-21 09:50:41.587123",
+        "duration": "0:00:00.100798",
+        "duration_text": "100 ms"
+    },
+    {
+        "stage": "process",
+        "job": "calculate-functions",
+        "start": "2024-04-21 09:50:41.587123",
+        "stop": "2024-04-21 09:50:41.889199",
+        "duration": "0:00:00.302076",
+        "duration_text": "302 ms"
+    },
+    {
+        "stage": "process",
+        "job": "compute-statistics",
+        "start": "2024-04-21 09:50:41.889199",
+        "stop": "2024-04-21 09:50:42.290750",
+        "duration": "0:00:00.401551",
+        "duration_text": "401 ms"
+    },
+    {
+        "stage": "build",
+        "job": "generate-website",
+        "start": "2024-04-21 09:50:42.290750",
+        "stop": "2024-04-21 09:50:42.793770",
+        "duration": "0:00:00.503020",
+        "duration_text": "503 ms"
+    }
+]

cache/test/example.dot

@@ -0,0 +1,6 @@
+digraph G {
+    A -> B;
+    B -> C;
+    C -> A;
+    C -> L;
+}

cache/test/gen.dot

@@ -0,0 +1,7 @@
+digraph G {
+    A [label="Node A"];
+    B [label="Node B"];
+    C [label="Node C"];
+    A -> B [label="A to B"];
+    B -> C [label="B to C"];
+}