Fix failing CI on analyze (#623)

Author: psakievich

manager/cmd/manager.py

@@ -7,7 +7,6 @@
 
 import sys
 
-import spack.extensions.manager.manager_cmds.analyze as analyze
 import spack.extensions.manager.manager_cmds.binary_finder as binary_finder
 import spack.extensions.manager.manager_cmds.cache_query as cache_query
 import spack.extensions.manager.manager_cmds.cli_config as cli_config
@@ -22,6 +21,12 @@
 import spack.extensions.manager.manager_cmds.make as make
 import spack.extensions.manager.manager_cmds.pin as pin
 
+try:
+    import spack.extensions.manager.manager_cmds.analyze as analyze
+    _analyze_imports = True
+except ImportError:
+    _analyze_imports = False
+
 if sys.version_info < (3, 8):
     print("spack-manager commands only supported in python 3.8 and higher")
     exit(1)
@@ -39,8 +44,8 @@ def setup_parser(subparser):
     cli_config.cli_commands["add"](sp, _subcommands)
     cli_config.cli_commands["remove"](sp, _subcommands)
     cli_config.cli_commands["list"](sp, _subcommands)
-
-    analyze.add_command(sp, _subcommands)
+    if _analyze_imports:
+        analyze.add_command(sp, _subcommands)
     binary_finder.add_command(sp, _subcommands)
     cache_query.add_command(sp, _subcommands)
     create_env.add_command(sp, _subcommands)

manager/manager_cmds/analyze.py

@@ -216,7 +216,6 @@ def analyze(parser, args):
     else:
         visitor = OmitSpecsVisitor([])
 
-
     stats = compute_dag_stats(specs, visitor)
 
     if args.stats: