update SPRAS mcf to use versioned image

.github/workflows/test-spras.yml

@@ -80,7 +80,7 @@ jobs:
         docker pull reedcompbio/omics-integrator-2:v2
         docker pull reedcompbio/pathlinker:latest
         docker pull reedcompbio/meo:latest
-        docker pull reedcompbio/mincostflow:latest
+        docker pull reedcompbio/mincostflow:v2
         docker pull reedcompbio/allpairs:latest
         docker pull reedcompbio/domino:latest
     - name: Build Omics Integrator 1 Docker image
@@ -125,7 +125,7 @@ jobs:
         path: docker-wrappers/MinCostFlow/.
         dockerfile: docker-wrappers/MinCostFlow/Dockerfile
         repository: reedcompbio/mincostflow
-        tags: latest
+        tags: v2
         cache_froms: reedcompbio/mincostflow:latest
         push: false
     - name: Build All Pairs Shortest Paths Docker image

docker-wrappers/MinCostFlow/README.md

@@ -36,3 +36,7 @@ docker run -w /data --mount type=bind,source=/${PWD},target=/data reedcompbio/mi
 This will run MinCostFlow on the test input files and write the output files to the root of the `spras` repository.
 
 Windows users may need to escape the absolute paths so that `/data` becomes `//data`, etc.
+
+## Versions
+- v1: Initial version. Handles undirected edges only.
+- v2: Updated to handle both directed and undirected edges.

spras/mincostflow.py

@@ -111,7 +111,7 @@ def run(sources=None, targets=None, edges=None, output_file=None, flow=None, cap
             command.extend(['--capacity', str(capacity)])
 
         # choosing to run in docker or singularity container
-        container_suffix = "mincostflow"
+        container_suffix = "mincostflow:v2"
 
         # constructs a docker run call
         out = run_container(container_framework,