Homebrew formula

README.md

@@ -146,7 +146,7 @@ Install the prebuilt package and run an example:
 brew install mflowcode/mfc/mfc
 mkdir -p ~/mfc_quickstart && cd ~/mfc_quickstart
 cp $(brew --prefix mfc)/examples/1D_sodshocktube/case.py .
-mfc run case.py -n 2
+mfc case.py -n 2
 ```
 
 Use `-n X` to select the number of MPI processes. For developer commands (`build`, `test`, etc.), clone the repo and use `./mfc.sh`.

docs/documentation/getting-started.md

@@ -23,11 +23,12 @@ Run a quick example:
 mkdir -p ~/mfc_quickstart && cd ~/mfc_quickstart
 cp $(brew --prefix mfc)/examples/1D_sodshocktube/case.py .
 # Use -n X to choose the number of MPI processes
-mfc run case.py -n 2
+mfc case.py -n 2
 ```
 
 Notes:
-- The Homebrew wrapper supports only `mfc run ...`. Developer commands like `build`, `test`, `clean` are available when you clone the repo and use `./mfc.sh`.
+- The Homebrew package uses a simplified syntax: just `mfc <case.py>` to run cases.
+- Developer commands like `build`, `test`, `clean` are available when you clone the repo and use `./mfc.sh`.
 - The package bundles a Python venv and prebuilt binaries; no additional setup is required.
 - Examples are installed at `$(brew --prefix mfc)/examples/`.
 

docs/documentation/running.md

@@ -13,11 +13,11 @@ several supercomputer clusters, both interactively and through batch submission.
 If you installed MFC via Homebrew, run cases with the `mfc` wrapper:
 
 ```bash
-mfc run <path/to/case.py> -n 2
+mfc <path/to/case.py> -n 2
 ```
 
 - Use `-n X` to control the number of MPI processes (ranks).
-- Only the `run` command is supported in the Homebrew wrapper.
+- The Homebrew package uses a simplified syntax: just `mfc <case.py>` to run cases.
 - To use developer commands (`build`, `test`, `clean`, etc.), clone the repository and use `./mfc.sh`.
 - The wrapper passes through runtime flags like `-t pre_process simulation`, `-n`, and others; it always runs with preinstalled binaries.
 - Examples live at `$(brew --prefix mfc)/examples/`.

packaging/homebrew/README.md

@@ -15,7 +15,7 @@ Run the 1D Sod shock tube example:
 ```bash
 mkdir -p ~/mfc_example && cd ~/mfc_example
 cp $(brew --prefix mfc)/examples/1D_sodshocktube/case.py .
-mfc run case.py -n 2
+mfc case.py -n 2
 ```
 
 ## What's Included
@@ -28,12 +28,12 @@ mfc run case.py -n 2
 ## Usage
 
 ```bash
-mfc run <case.py> -n <processes>
+mfc <case.py> -n <processes>
 ```
 
 Use `-n X` to set the number of MPI processes.
 
-**Note**: The Homebrew wrapper supports only `mfc run`. For developer commands (`build`, `test`, `clean`, etc.), [clone the repository](https://github.com/MFlowCode/MFC) and use `./mfc.sh`.
+**Note**: The Homebrew wrapper supports only running cases. For developer commands (`build`, `test`, `clean`, etc.), [clone the repository](https://github.com/MFlowCode/MFC) and use `./mfc.sh`.
 
 ## Documentation
 

packaging/homebrew/mfc.rb

@@ -94,20 +94,17 @@ def install
           fi
         done
 
-        SUBCMD="${ARGS[0]-}"
-
         # Friendly help and guardrails
-        if [[ ${#ARGS[@]} -eq 0 ]] || [[ "${SUBCMD}" == "--help" ]] || [[ "${SUBCMD}" == "-h" ]]; then
+        if [[ ${#ARGS[@]} -eq 0 ]] || [[ "${ARGS[0]-}" == "--help" ]] || [[ "${ARGS[0]-}" == "-h" ]]; then
           cat <<'HHELP'
       MFC (Homebrew) #{version}
 
       Usage:
         mfc <case.py> [options]
-        mfc run <case.py> [options]
 
       Examples:
         mfc case.py -n 2
-        mfc run case.py -n 2 -t pre_process simulation
+        mfc examples/1D_sodshocktube/case.py -n 2 -t pre_process simulation
 
       Notes:
         - This Homebrew wrapper uses prebuilt binaries and a preinstalled venv.
@@ -117,18 +114,48 @@ def install
           exit 0
         fi
 
-        # Smart detection: if first arg looks like a case file, auto-prepend "run"
-        if [[ "${SUBCMD}" =~ .py$ ]] || [[ -f "${SUBCMD}" ]]; then
-          ARGS=("run" "${ARGS[@]}")
-          SUBCMD="run"
+        # Handle --version flag
+        if [[ "${ARGS[0]-}" == "--version" ]] || [[ "${ARGS[0]-}" == "-v" ]]; then
+          echo "MFC (Homebrew) #{version}"
+          exit 0
         fi
 
-        if [[ "${SUBCMD}" != "run" ]]; then
-          echo "mfc (Homebrew): only 'run' is supported in the Homebrew package."
-          echo "Use 'mfc <case.py>' or clone the repository for developer commands."
+        # Find first non-flag argument
+        first_nonflag=""
+        for arg in "${ARGS[@]}"; do
+          if [[ "$arg" != -* ]]; then
+            first_nonflag="$arg"
+            break
+          fi
+        done
+
+        # Check if no case file provided
+        if [[ -z "${first_nonflag}" ]]; then
+          echo "mfc (Homebrew): missing case file."
+          echo "Usage: mfc <case.py> [options]"
+          echo "Example: mfc case.py -n 2"
           exit 2
         fi
 
+        # Check if user accidentally used 'mfc run' syntax (even with flags before it)
+        if [[ "${first_nonflag}" == "run" ]]; then
+          echo "mfc (Homebrew): The 'run' command is not needed."
+          echo "Usage: mfc <case.py> [options]"
+          echo "Example: mfc case.py -n 2"
+          exit 2
+        fi
+
+        # Require a readable Python file (not a directory)
+        if [[ ! "${first_nonflag}" =~ .py$ ]] || [[ ! -f "${first_nonflag}" ]]; then
+          echo "mfc (Homebrew): first argument must be a readable Python case file."
+          echo "Given: ${first_nonflag}"
+          echo "Usage: mfc <case.py> [options]"
+          exit 2
+        fi
+
+        # Always prepend "run" since this wrapper only supports running cases
+        ARGS=("run" "${ARGS[@]}")
+
         # Create a temporary working directory (Cellar is read-only)
         TMPDIR="$(mktemp -d)"
         trap 'rm -rf "${TMPDIR}"' EXIT
@@ -226,8 +253,7 @@ def caveats
       MFC has been installed successfully!
 
       To run a case:
-        mfc <case.py>
-        mfc run <case.py>  (explicit form)
+        mfc <case.py> [options]
 
       Pre-built binaries are also available directly:
         pre_process, simulation, post_process