composer-cli: clean up "list" commands

This patch does two things:

1) Add "compose list", which lists compose UUIDs and other basic info,
2) Fix up "blueprints list", "modules list", "sources list", and
   "compose types" so their output is just a plain list of identifiers

src/composer/cli/blueprints.py

@@ -77,7 +77,8 @@ def blueprints_list(socket_path, api_version, args, show_json=False):
     if exit_now:
         return rc
 
-    print("blueprints: " + ", ".join([r for r in result["blueprints"]]))
+    # "list" should output a plain list of identifiers, one per line.
+    print("\n".join(result["blueprints"]))
 
     return rc
 

src/composer/cli/compose.py

@@ -36,6 +36,7 @@ def compose_cmd(opts):
     This dispatches the compose commands to a function
     """
     cmd_map = {
+        "list":     compose_list,
         "status":   compose_status,
         "types":    compose_types,
         "start":    compose_start,
@@ -57,6 +58,50 @@ def compose_cmd(opts):
 
     return cmd_map[opts.args[1]](opts.socket, opts.api_version, opts.args[2:], opts.json, opts.testmode)
 
+def compose_list(socket_path, api_version, args, show_json=False, testmode=0):
+    """Return a simple list of compose identifiers"""
+
+    states = ("running", "waiting", "finished", "failed")
+
+    which = set()
+
+    if any(a not in states for a in args):
+        # TODO: error about unknown state
+        return 1
+    elif not args:
+        which.update(states)
+    else:
+        which.update(args)
+
+    results = []
+
+    if "running" in which or "waiting" in which:
+        api_route = client.api_url(api_version, "/compose/queue")
+        r = client.get_url_json(socket_path, api_route)
+        if "running" in which:
+            results += r["run"]
+        if "waiting" in which:
+            results += r["new"]
+
+    if "finished" in which:
+        api_route = client.api_url(api_version, "/compose/finished")
+        r = client.get_url_json(socket_path, api_route)
+        results += r["finished"]
+
+    if "failed" in which:
+        api_route = client.api_url(api_version, "/compose/failed")
+        r = client.get_url_json(socket_path, api_route)
+        results += r["failed"]
+
+    if results:
+        if show_json:
+            print(json.dumps(results, indent=4))
+        else:
+            list_fmt = "{id} {queue_status} {blueprint} {version} {compose_type}"
+            print("\n".join(list_fmt.format(**c) for c in results))
+
+    return 0
+
 def compose_status(socket_path, api_version, args, show_json=False, testmode=0):
     """Return the status of all known composes
 
@@ -148,7 +193,8 @@ def compose_types(socket_path, api_version, args, show_json=False, testmode=0):
         print(json.dumps(result, indent=4))
         return 0
 
-    print("Compose Types: " + ", ".join([t["name"] for t in result["types"]]))
+    # output a plain list of identifiers, one per line
+    print("\n".join(t["name"] for t in result["types"]))
 
 def compose_start(socket_path, api_version, args, show_json=False, testmode=0):
     """Start a new compose using the selected blueprint and type

src/composer/cli/help.py

@@ -25,6 +25,9 @@ compose types
 compose status
     List the status of all running and finished composes.
 
+compose list [waiting|running|finished|failed]
+    List basic information about composes.
+
 compose log <UUID> [<SIZE>]
     Show the last SIZE kB of the compose log.
 

src/composer/cli/modules.py

@@ -42,6 +42,7 @@ def modules_cmd(opts):
     if exit_now:
         return rc
 
-    print("Modules:\n" + "\n".join(["    "+r["name"] for r in result["modules"]]))
+    # "list" should output a plain list of identifiers, one per line.
+    print("\n".join(r["name"] for r in result["modules"]))
 
     return rc

src/composer/cli/sources.py

@@ -67,7 +67,8 @@ def sources_list(socket_path, api_version, args, show_json=False):
     if exit_now:
         return rc
 
-    print("Sources: %s" % ", ".join(result["sources"]))
+    # "list" should output a plain list of identifiers, one per line.
+    print("\n".join(result["sources"]))
     return rc
 
 def sources_info(socket_path, api_version, args, show_json=False):