fix: Resolve issue for read only file systems (#1678)

<!-- .github/pull_request_template.md -->

## Description
Enable Cognee to work on read only file systems by avoiding use of file
handler when logging if log file location is read only

## Type of Change
<!-- Please check the relevant option -->
- [ ] Bug fix (non-breaking change that fixes an issue)
- [x] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update
- [ ] Code refactoring
- [ ] Performance improvement
- [ ] Other (please specify):

## Screenshots/Videos (if applicable)
<!-- Add screenshots or videos to help explain your changes -->

## Pre-submission Checklist
<!-- Please check all boxes that apply before submitting your PR -->
- [ ] **I have tested my changes thoroughly before submitting this PR**
- [ ] **This PR contains minimal changes necessary to address the
issue/feature**
- [ ] My code follows the project's coding standards and style
guidelines
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have added necessary documentation (if applicable)
- [ ] All new and existing tests pass
- [ ] I have searched existing PRs to ensure this change hasn't been
submitted already
- [ ] I have linked any relevant issues in the description
- [ ] My commits have clear and descriptive messages

## DCO Affirmation
I affirm that all code in every commit of this pull request conforms to
the terms of the Topoteretes Developer Certificate of Origin.

cognee/shared/logging_utils.py

@@ -430,6 +430,15 @@ def setup_logging(log_level=None, name=None):
     stream_handler.setFormatter(console_formatter)
     stream_handler.setLevel(log_level)
 
+    root_logger = logging.getLogger()
+    if root_logger.hasHandlers():
+        root_logger.handlers.clear()
+    root_logger.addHandler(stream_handler)
+
+    # Note: root logger needs to be set at NOTSET to allow all messages through and specific stream and file handlers
+    # can define their own levels.
+    root_logger.setLevel(logging.NOTSET)
+
     # Check if we already have a log file path from the environment
     # NOTE: environment variable must be used here as it allows us to
     # log to a single file with a name based on a timestamp in a multiprocess setting.
@@ -441,17 +450,15 @@ def setup_logging(log_level=None, name=None):
         log_file_path = os.path.join(LOGS_DIR, f"{start_time}.log")
         os.environ["LOG_FILE_NAME"] = log_file_path
 
-    # Create a file handler that uses our custom PlainFileHandler
+    try:
-    file_handler = PlainFileHandler(log_file_path, encoding="utf-8")
+        # Create a file handler that uses our custom PlainFileHandler
-    file_handler.setLevel(DEBUG)
+        file_handler = PlainFileHandler(log_file_path, encoding="utf-8")
-
+        file_handler.setLevel(DEBUG)
-    # Configure root logger
+        root_logger.addHandler(file_handler)
-    root_logger = logging.getLogger()
+    except Exception as e:
-    if root_logger.hasHandlers():
+        # Note: Exceptions happen in case of read only file systems or log file path poiting to location where it does
-        root_logger.handlers.clear()
+        # not have write permission. Logging to file is not mandatory so we just log a warning to console.
-    root_logger.addHandler(stream_handler)
+        root_logger.warning(f"Warning: Could not create log file handler at {log_file_path}: {e}")
-    root_logger.addHandler(file_handler)
-    root_logger.setLevel(log_level)
 
     if log_level > logging.DEBUG:
         import warnings

poetry.lock

@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.3 and should not be changed by hand.
 
 [[package]]
 name = "accelerate"
@@ -2543,7 +2543,6 @@ files = [
     {file = "fastuuid-0.12.0-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:b9b31dd488d0778c36f8279b306dc92a42f16904cba54acca71e107d65b60b0c"},
     {file = "fastuuid-0.12.0-cp313-cp313-manylinux_2_34_x86_64.whl", hash = "sha256:b19361ee649365eefc717ec08005972d3d1eb9ee39908022d98e3bfa9da59e37"},
     {file = "fastuuid-0.12.0-cp313-cp313-win_amd64.whl", hash = "sha256:8fc66b11423e6f3e1937385f655bedd67aebe56a3dcec0cb835351cfe7d358c9"},
-    {file = "fastuuid-0.12.0-cp38-cp38-macosx_10_12_x86_64.whl", hash = "sha256:2925f67b88d47cb16aa3eb1ab20fdcf21b94d74490e0818c91ea41434b987493"},
     {file = "fastuuid-0.12.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:7b15c54d300279ab20a9cc0579ada9c9f80d1bc92997fc61fb7bf3103d7cb26b"},
     {file = "fastuuid-0.12.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:458f1bc3ebbd76fdb89ad83e6b81ccd3b2a99fa6707cd3650b27606745cfb170"},
     {file = "fastuuid-0.12.0-cp38-cp38-manylinux_2_34_x86_64.whl", hash = "sha256:a8f0f83fbba6dc44271a11b22e15838641b8c45612cdf541b4822a5930f6893c"},
@@ -4170,8 +4169,6 @@ groups = ["main"]
 markers = "extra == \"dlt\""
 files = [
     {file = "jsonpath-ng-1.7.0.tar.gz", hash = "sha256:f6f5f7fd4e5ff79c785f1573b394043b39849fb2bb47bcead935d12b00beab3c"},
-    {file = "jsonpath_ng-1.7.0-py2-none-any.whl", hash = "sha256:898c93fc173f0c336784a3fa63d7434297544b7198124a68f9a3ef9597b0ae6e"},
-    {file = "jsonpath_ng-1.7.0-py3-none-any.whl", hash = "sha256:f3d7f9e848cba1b6da28c55b1c26ff915dc9e0b1ba7e752a53d6da8d5cbd00b6"},
 ]
 
 [package.dependencies]
@@ -8593,7 +8590,6 @@ files = [
     {file = "psycopg2_binary-2.9.10-cp313-cp313-musllinux_1_2_i686.whl", hash = "sha256:bb89f0a835bcfc1d42ccd5f41f04870c1b936d8507c6df12b7737febc40f0909"},
     {file = "psycopg2_binary-2.9.10-cp313-cp313-musllinux_1_2_ppc64le.whl", hash = "sha256:f0c2d907a1e102526dd2986df638343388b94c33860ff3bbe1384130828714b1"},
     {file = "psycopg2_binary-2.9.10-cp313-cp313-musllinux_1_2_x86_64.whl", hash = "sha256:f8157bed2f51db683f31306aa497311b560f2265998122abe1dce6428bd86567"},
-    {file = "psycopg2_binary-2.9.10-cp313-cp313-win_amd64.whl", hash = "sha256:27422aa5f11fbcd9b18da48373eb67081243662f9b46e6fd07c3eb46e4535142"},
     {file = "psycopg2_binary-2.9.10-cp38-cp38-macosx_12_0_x86_64.whl", hash = "sha256:eb09aa7f9cecb45027683bb55aebaaf45a0df8bf6de68801a6afdc7947bb09d4"},
     {file = "psycopg2_binary-2.9.10-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:b73d6d7f0ccdad7bc43e6d34273f70d587ef62f824d7261c4ae9b8b1b6af90e8"},
     {file = "psycopg2_binary-2.9.10-cp38-cp38-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:ce5ab4bf46a211a8e924d307c1b1fcda82368586a19d0a24f8ae166f5c784864"},

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "cognee"
 
-version = "0.3.7"
+version = "0.3.7.dev1"
 description = "Cognee - is a library for enriching LLM context with a semantic layer for better understanding and reasoning."
 authors = [
     { name = "Vasilije Markovic" },