37fb74d431
Created verification note documenting stdout and stderr capture to log files using standard shell redirection syntax (> output.log 2>&1). Verified: - Both stdout and stderr are captured to log files - Files created in notes/ directory with 644 permissions - Log files are readable with cat and other standard tools - Tested with pdftract --help (stdout) and error commands (stderr) Closes bf-694ie.
97 lines
3.3 KiB
Markdown
97 lines
3.3 KiB
Markdown
# bf-694ie: Capture stdout and stderr from pdftract to a log file
|
|
|
|
## Summary
|
|
Verified that output redirection works properly with pdftract by capturing both stdout and stderr to log files.
|
|
|
|
## Tests Performed
|
|
|
|
### Test 1: Error output capture (stderr only)
|
|
```bash
|
|
pdftract extract tests/fixtures/sample.pdf > notes/bf-694ie-output.log 2>&1
|
|
```
|
|
|
|
**Result:**
|
|
- File created: `/home/coding/pdftract/notes/bf-694ie-output.log`
|
|
- File size: 29 bytes
|
|
- File permissions: `-rw-r--r--` (644 - readable by owner and group)
|
|
- Content: `Error: Failed to extract PDF`
|
|
- Exit code: 1
|
|
|
|
### Test 2: Help output capture (stdout only)
|
|
```bash
|
|
pdftract --help > notes/bf-694ie-help.log 2>&1
|
|
```
|
|
|
|
**Result:**
|
|
- File created: `/home/coding/pdftract/notes/bf-694ie-help.log`
|
|
- File size: 1,373 bytes
|
|
- File permissions: `-rw-r--r--` (644)
|
|
- Content: 26 lines of help text
|
|
- Exit code: 0
|
|
|
|
### Test 3: Hash command output capture
|
|
```bash
|
|
(pdftract hash tests/fixtures/test-minimal.pdf 2>&1) > notes/bf-694ie-hash.log
|
|
```
|
|
|
|
**Result:**
|
|
- File created: `/home/coding/pdftract/notes/bf-694ie-hash.log`
|
|
- File size: 47 bytes
|
|
- File permissions: `-rw-r--r--` (644)
|
|
- Content: `Error: Failed to compute fingerprint from file`
|
|
- Exit code: 2
|
|
|
|
## Verification
|
|
|
|
### File Creation
|
|
✅ All log files were created successfully in the `notes/` directory
|
|
|
|
### File Readability
|
|
✅ Files are readable with standard commands:
|
|
- `cat notes/bf-694ie-output.log` - SUCCESS
|
|
- `cat notes/bf-694ie-help.log` - SUCCESS
|
|
- `cat notes/bf-694ie-hash.log` - SUCCESS
|
|
|
|
### File Permissions
|
|
✅ All files have `-rw-r--r--` (644) permissions, allowing read access
|
|
|
|
### Content Capture
|
|
✅ Both stdout and stderr are captured:
|
|
- `--help` command (stdout) captured successfully
|
|
- Error messages (stderr) captured successfully
|
|
|
|
## Documented Redirection Syntax
|
|
|
|
The standard shell redirection syntax for capturing both stdout and stderr:
|
|
|
|
```bash
|
|
# Method 1: Redirect stderr to stdout, then to file (recommended)
|
|
pdftract <fixture-path> > output.log 2>&1
|
|
|
|
# Method 2: Alternate syntax
|
|
pdftract <fixture-path> &> output.log
|
|
|
|
# Method 3: Explicit redirection
|
|
pdftract <fixture-path> 1> output.log 2>&1
|
|
```
|
|
|
|
## Log File Locations
|
|
- `/home/coding/pdftract/notes/bf-694ie-output.log`
|
|
- `/home/coding/pdftract/notes/bf-694ie-help.log`
|
|
- `/home/coding/pdftract/notes/bf-694ie-hash.log`
|
|
|
|
## Acceptance Criteria Status
|
|
|
|
| Criterion | Status | Notes |
|
|
|-----------|--------|-------|
|
|
| stdout and stderr are both captured to a file | ✅ PASS | Verified with both `--help` (stdout) and error commands (stderr) |
|
|
| The log file is created in a known location | ✅ PASS | Files created in `/home/coding/pdftract/notes/` directory |
|
|
| The log file contains output from pdftract | ✅ PASS | All log files contain pdftract output (help text or error messages) |
|
|
| File permissions allow reading the log | ✅ PASS | All files have 644 permissions (-rw-r--r--) |
|
|
| The redirection method is documented | ✅ PASS | Documented three redirection methods above |
|
|
|
|
## Commits
|
|
- Created verification note: `notes/bf-694ie.md`
|
|
|
|
## Conclusion
|
|
The output redirection functionality works correctly with pdftract. Both stdout and stderr can be captured to log files using standard shell redirection (`> output.log 2>&1`). The log files are created with appropriate permissions and are readable with standard tools.
|