BC: Add output file path argument

README.md

@@ -44,7 +44,8 @@ The command line options are aligned to the standard Conan options.
 ```shellSession
 $ cyclonedx-conan --help
 usage: cyclonedx-conan [-h] [-if INSTALL_FOLDER] [-db [DRY_BUILD]]
-                       [--exclude-dev] [-b [BUILD]] [-r REMOTE] [-u]
+                       [--output FILE_PATH] [--exclude-dev]
+                       [-b [BUILD]] [-r REMOTE] [-u]
                        [-l LOCKFILE] [--lockfile-out LOCKFILE_OUT]
                        [-e ENV_HOST] [-e:b ENV_BUILD] [-e:h ENV_HOST]
                        [-o OPTIONS_HOST] [-o:b OPTIONS_BUILD]
@@ -69,6 +70,8 @@ options:
                         If you specify both install-folder and any setting/option it will raise an error.
   -db [DRY_BUILD], --dry-build [DRY_BUILD]
                         Apply the --build argument to output the information, as it would be done by the install command
+  --output FILE_PATH
+                        Output file path for your SBOM (set to '-' to output to STDOUT)
   --exclude-dev         Exclude development dependencies from the BOM
   -b [BUILD], --build [BUILD]
                         Given a build policy, return an ordered list of packages that would be built from sources during the install command

src/command.py

@@ -26,6 +26,7 @@
 from conans.client.conan_api import Conan, ProfileData
 from conans.client.command import Command as ConanCommand, OnceArgument, Extender, _add_common_install_arguments
 from conans.client.graph.graph import DepsGraph, Node
+from conans.client.output import ConanOutput, colorama_initialize
 from conans.errors import ConanMigrationError, ConanException
 from packageurl import PackageURL
 from typing import Set
@@ -54,6 +55,11 @@ def get_arg_parser() -> argparse.ArgumentParser:
         dry_build_help = ("Apply the --build argument to output the information, "
                           "as it would be done by the install command")
         parser.add_argument("-db", "--dry-build", action=Extender, nargs="?", help=dry_build_help)
+        output_help='Output file path for your SBOM (set to \'-\' to output to STDOUT)'
+        parser.add_argument(
+            '--output', action='store', metavar='FILE_PATH', default="-", required=False,
+            help=output_help, dest='output_file'
+        )
         exclude_dev_help = 'Exclude development dependencies from the BOM'
         parser.add_argument(
             '--exclude-dev', action='store_true',
@@ -71,7 +77,7 @@ def get_arg_parser() -> argparse.ArgumentParser:
 
     def execute(self):
         try:
-            conan_api, _, _ = Conan.factory()
+            conan_api = Conan(output=ConanOutput(sys.stderr, sys.stderr, colorama_initialize()))
         except ConanMigrationError:  # Error migrating
             sys.exit(1)
         except ConanException as e:
@@ -180,8 +186,12 @@ def execute(self):
                     dependencies['dependsOn'].append(str(dep_purl))
                 bom['dependencies'].append(dependencies)
 
-        print(json.dumps(bom, indent=2))
-
+        output = json.dumps(bom, indent=2)
+        if self._arguments.output_file == '-' or not self._arguments.output_file:
+            print(output)
+        else:
+            with open(self._arguments.output_file, "w") as file:
+                file.write(output)
 
 def get_purl(remote, ref):
     qualifiers = {