Check .logfire for creds to respect 'if-token-present' setting

logfire/_internal/config.py

@@ -801,65 +801,73 @@ def add_span_processor(span_processor: SpanProcessor) -> None:
             if isinstance(self.metrics, MetricsOptions):
                 metric_readers = list(self.metrics.additional_readers)
 
-            if (self.send_to_logfire == 'if-token-present' and self.token is not None) or self.send_to_logfire is True:
-                show_project_link = self.console and self.console.show_project_link
+            if self.send_to_logfire:
+                credentials: LogfireCredentials | None = None
+                show_project_link: bool = self.console and self.console.show_project_link or False
 
+                # try loading credentials (and thus token) from file if a token is not already available
+                # this takes the lowest priority, behind the token passed to `configure` and the environment variable
                 if self.token is None:
-                    if (credentials := LogfireCredentials.load_creds_file(self.data_dir)) is None:  # pragma: no branch
+                    credentials = LogfireCredentials.load_creds_file(self.data_dir)
+
+                    # if we still don't have a token, try initializing a new project and writing a new creds file
+                    # note, we only do this if `send_to_logfire` is explicitly `True`
+                    if self.send_to_logfire is True and credentials is None:
                         credentials = LogfireCredentials.initialize_project(
                             logfire_api_url=self.advanced.base_url,
                             session=requests.Session(),
                         )
                         credentials.write_creds_file(self.data_dir)
-                    self.token = credentials.token
-                    self.advanced.base_url = self.advanced.base_url or credentials.logfire_api_url
-                    if show_project_link:  # pragma: no branch
-                        credentials.print_token_summary()
-                else:
+
+                    if credentials is not None:
+                        self.token = credentials.token
+                        self.advanced.base_url = self.advanced.base_url or credentials.logfire_api_url
+
+                if self.token is not None:
 
                     def check_token():
                         assert self.token is not None
-                        creds = self._initialize_credentials_from_token(self.token)
-                        if show_project_link and creds is not None:  # pragma: no branch
-                            creds.print_token_summary()
+                        validated_credentials = self._initialize_credentials_from_token(self.token)
+                        if show_project_link and validated_credentials is not None:
+                            validated_credentials.print_token_summary()
 
                     thread = Thread(target=check_token, name='check_logfire_token')
                     thread.start()
 
-                headers = {'User-Agent': f'logfire/{VERSION}', 'Authorization': self.token}
-                session = OTLPExporterHttpSession(max_body_size=OTLP_MAX_BODY_SIZE)
-                session.headers.update(headers)
-                span_exporter = OTLPSpanExporter(
-                    endpoint=urljoin(self.advanced.base_url, '/v1/traces'),
-                    session=session,
-                    compression=Compression.Gzip,
-                )
-                span_exporter = RetryFewerSpansSpanExporter(span_exporter)
-                span_exporter = FallbackSpanExporter(
-                    span_exporter, FileSpanExporter(self.data_dir / DEFAULT_FALLBACK_FILE_NAME, warn=True)
-                )
-                span_exporter = RemovePendingSpansExporter(span_exporter)
-                schedule_delay_millis = _get_int_from_env(OTEL_BSP_SCHEDULE_DELAY) or 500
-                add_span_processor(BatchSpanProcessor(span_exporter, schedule_delay_millis=schedule_delay_millis))
-
-                if metric_readers is not None:
-                    metric_readers += [
-                        PeriodicExportingMetricReader(
-                            QuietMetricExporter(
-                                OTLPMetricExporter(
-                                    endpoint=urljoin(self.advanced.base_url, '/v1/metrics'),
-                                    headers=headers,
-                                    session=session,
-                                    compression=Compression.Gzip,
-                                    # I'm pretty sure that this line here is redundant,
-                                    # and that passing it to the QuietMetricExporter is what matters
-                                    # because the PeriodicExportingMetricReader will read it from there.
+                    headers = {'User-Agent': f'logfire/{VERSION}', 'Authorization': self.token}
+                    session = OTLPExporterHttpSession(max_body_size=OTLP_MAX_BODY_SIZE)
+                    session.headers.update(headers)
+                    span_exporter = OTLPSpanExporter(
+                        endpoint=urljoin(self.advanced.base_url, '/v1/traces'),
+                        session=session,
+                        compression=Compression.Gzip,
+                    )
+                    span_exporter = RetryFewerSpansSpanExporter(span_exporter)
+                    span_exporter = FallbackSpanExporter(
+                        span_exporter, FileSpanExporter(self.data_dir / DEFAULT_FALLBACK_FILE_NAME, warn=True)
+                    )
+                    span_exporter = RemovePendingSpansExporter(span_exporter)
+                    schedule_delay_millis = _get_int_from_env(OTEL_BSP_SCHEDULE_DELAY) or 500
+                    add_span_processor(BatchSpanProcessor(span_exporter, schedule_delay_millis=schedule_delay_millis))
+
+                    if metric_readers is not None:
+                        metric_readers += [
+                            PeriodicExportingMetricReader(
+                                QuietMetricExporter(
+                                    OTLPMetricExporter(
+                                        endpoint=urljoin(self.advanced.base_url, '/v1/metrics'),
+                                        headers=headers,
+                                        session=session,
+                                        compression=Compression.Gzip,
+                                        # I'm pretty sure that this line here is redundant,
+                                        # and that passing it to the QuietMetricExporter is what matters
+                                        # because the PeriodicExportingMetricReader will read it from there.
+                                        preferred_temporality=METRICS_PREFERRED_TEMPORALITY,
+                                    ),
                                     preferred_temporality=METRICS_PREFERRED_TEMPORALITY,
-                                ),
-                                preferred_temporality=METRICS_PREFERRED_TEMPORALITY,
+                                )
                             )
-                        )
-                    ]
+                        ]
 
             if processors_with_pending_spans:
                 tracer_provider.add_span_processor(

tests/test_configure.py

@@ -902,6 +902,10 @@ def test_initialize_project_use_existing_project_no_projects(tmp_dir_cwd: Path,
         request_mocker.get(
             'https://logfire-api.pydantic.dev/v1/organizations/', json=[{'organization_name': 'fake_org'}]
         )
+        request_mocker.get(
+            'https://logfire-api.pydantic.dev/v1/info',
+            json={'project_name': 'myproject', 'project_url': 'fake_project_url'},
+        )
         create_project_response = {
             'json': {
                 'project_name': 'myproject',
@@ -934,6 +938,10 @@ def test_initialize_project_use_existing_project(tmp_dir_cwd: Path, tmp_path: Pa
             'https://logfire-api.pydantic.dev/v1/projects/',
             json=[{'organization_name': 'fake_org', 'project_name': 'fake_project'}],
         )
+        request_mocker.get(
+            'https://logfire-api.pydantic.dev/v1/info',
+            json={'project_name': 'myproject', 'project_url': 'fake_project_url'},
+        )
         create_project_response = {
             'json': {
                 'project_name': 'myproject',
@@ -986,6 +994,10 @@ def test_initialize_project_not_using_existing_project(
         request_mocker.get(
             'https://logfire-api.pydantic.dev/v1/organizations/', json=[{'organization_name': 'fake_org'}]
         )
+        request_mocker.get(
+            'https://logfire-api.pydantic.dev/v1/info',
+            json={'project_name': 'myproject', 'project_url': 'fake_project_url'},
+        )
         request_mocker.get(
             'https://logfire-api.pydantic.dev/v1/projects/',
             json=[{'organization_name': 'fake_org', 'project_name': 'fake_project'}],
@@ -1078,6 +1090,10 @@ def test_initialize_project_create_project(tmp_dir_cwd: Path, tmp_path: Path, ca
         request_mocker.get(
             'https://logfire-api.pydantic.dev/v1/organizations/', json=[{'organization_name': 'fake_org'}]
         )
+        request_mocker.get(
+            'https://logfire-api.pydantic.dev/v1/info',
+            json={'project_name': 'myproject', 'project_url': 'fake_project_url'},
+        )
 
         create_existing_project_request_json = {
             'project_name': 'existingprojectname',
@@ -1186,6 +1202,10 @@ def test_initialize_project_create_project_default_organization(tmp_dir_cwd: Pat
             'https://logfire-api.pydantic.dev/v1/organizations/',
             json=[{'organization_name': 'fake_org'}, {'organization_name': 'fake_org1'}],
         )
+        request_mocker.get(
+            'https://logfire-api.pydantic.dev/v1/info',
+            json={'project_name': 'myproject', 'project_url': 'fake_project_url'},
+        )
         request_mocker.get(
             'https://logfire-api.pydantic.dev/v1/account/me',
             json={'default_organization': {'organization_name': 'fake_org1'}},
@@ -1297,6 +1317,29 @@ def test_send_to_logfire_if_token_present_not_empty(capsys: pytest.CaptureFixtur
         del os.environ['LOGFIRE_TOKEN']
 
 
+def test_send_to_logfire_if_token_present_in_logfire_dir(tmp_path: Path, capsys: pytest.CaptureFixture[str]) -> None:
+    creds_file = tmp_path / 'logfire_credentials.json'
+    creds_file.write_text(
+        """
+        {
+            "token": "foobar",
+            "project_name": "myproject",
+            "project_url": "http://dash.localhost:8000/",
+            "logfire_api_url": "http://dash.localhost:8000/"
+        }
+        """
+    )
+    with requests_mock.Mocker() as request_mocker:
+        request_mocker.get(
+            'https://logfire-api.pydantic.dev/v1/info',
+            json={'project_name': 'myproject', 'project_url': 'http://dash.localhost:8000/'},
+        )
+        configure(send_to_logfire='if-token-present', data_dir=tmp_path)
+        wait_for_check_token_thread()
+        assert len(request_mocker.request_history) == 1
+        assert capsys.readouterr().err == 'Logfire project URL: http://dash.localhost:8000/\n'
+
+
 def test_load_creds_file_invalid_json_content(tmp_path: Path):
     creds_file = tmp_path / 'logfire_credentials.json'
     creds_file.write_text('invalid-data')