Introduce verbose mode and generalize output formats

Added program specific configurations in config.yaml under puudot
and added key for verbose mode. Currently verbose mode prints
'dot' information when running the program.

Refactored puudot.py and graph.py in order to allow easier
addition of output formats.

Dockerfile

@@ -1,5 +1,6 @@
 FROM alpine
 RUN apk add --no-cache \
+    yq \
     python3 \
     py3-yaml \
     graphviz

code/graph.py

@@ -11,6 +11,8 @@ import uuid
 
 
 
+support_formats = ["svg", "pdf"]
+
 def make_header(config):
     return "graph {\n" + config["graph"] + "\n"
 
@@ -145,12 +147,12 @@ class Graph:
         self.dot_file += add_links(self.links, self.config)
         self.dot_file += make_footer()
     
-    def make_dot(self, format="svg", dot_file="dot.gv", svg_file="graph.svg"):
+    def make_dot(self, format="svg", dot_file="dot.gv", out_file="graph.svg"):
         if self.dot_file != "":
             with open(dot_file, "w") as f:
                 f.write(self.dot_file)
-            if format == "svg":
-                os.system(f"dot -T{format} {dot_file} -o {svg_file}")
+            if format in support_formats:
+                os.system(f"dot -T{format} {dot_file} -o {out_file}")
     
         
         

code/puudot.py

@@ -5,6 +5,7 @@ import os
 
 DATA_DIR="/data"
 CONFIG_FILE="/config.yaml"
+FORMAT="pdf"
 
 def main():
     # Get all YAML files in the data directory
@@ -22,8 +23,8 @@ def main():
         # Use the base name of the YAML file (without extension) as the output name
         base_name = os.path.splitext(yaml_file)[0]
         dot_file = os.path.join(DATA_DIR, f"{base_name}.gv")
-        svg_file = os.path.join(DATA_DIR, f"{base_name}.svg")
-        graph.make_dot("svg", dot_file, svg_file)
+        out_file = os.path.join(DATA_DIR, f"{base_name}.{FORMAT}")
+        graph.make_dot(FORMAT, dot_file, out_file)
 
 if __name__ == "__main__":
     main()

config.yaml

@@ -1,14 +1,19 @@
+puudot:
+  verbose: false
 dot:
   graph: |
     //graph [splines=ortho, nodesep=0.2, ranksep="0.5 equally"]
-    //graph [splines=polyline, nodesep=0.2, ranksep="0.5 equally"]
+    graph [splines=polyline, nodesep=0.2, ranksep="0.5 equally"]
     //graph [splines=curved, nodesep=0.2, ranksep="0.5 equally"]
     //graph [splines=true, nodesep=0.2, ranksep="0.5 equally"]
-    graph [splines=line, nodesep=0.2, ranksep="0.5 equally"]
+    //graph [splines=line, nodesep=0.2, ranksep="0.5 equally"]
     //node [color=white]
     //edge [headport=n, tailport=s]
     compound=true
     center=true
+    fontname="Helvetica"
+    charset="UTF-8"
+    bgcolor="white"
   subgraph: |
     labeljust=l
   node:

run.sh

@@ -6,5 +6,17 @@ if [ ! -f "/code/puudot.py" ]; then
     exit 1
 fi
 
+# Check if config.yaml exists
+if [ ! -f "/config.yaml" ]; then
+    echo "Error: config.yaml not found in /config directory!"
+    exit 1
+fi
+
+verbose=$(yq eval '.puudot.verbose' /config.yaml)
+
+if [ "$verbose" = true ]; then
+    echo $(dot -v)
+fi
+
 # Run the script
 python3 /code/puudot.py