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⚡️ Speed up function _get_url_for_version by 29% in python_modules/dagster/dagster/_generate/download.py #78

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@codeflash-ai codeflash-ai bot commented Jul 27, 2024

📄 _get_url_for_version() in python_modules/dagster/dagster/_generate/download.py

📈 Performance improved by 29% (0.29x faster)

⏱️ Runtime went down from 1.23 millisecond to 954 microseconds

Explanation and details

Here's an optimized version of the given program. The key improvement here is reducing the function call overhead by directly embedding _get_target_for_version logic within _get_url_for_version.

With this change.

  1. _get_target_for_version is optimized using a single return statement.
  2. _get_url_for_version is slightly optimized by inlining the logic, but it does explicitly keep the optimized _get_target_for_version function for potential reuse elsewhere.

Correctness verification

The new optimized code was tested for correctness. The results are listed below.

✅ 2 Passed − ⚙️ Existing Unit Tests

(click to show existing tests)
- cli_tests/test_project_commands.py

✅ 1014 Passed − 🌀 Generated Regression Tests

(click to show generated tests)
# imports
import pytest  # used for our unit tests
from dagster._generate.download import _get_url_for_version

# unit tests

# Test standard version input
def test_standard_version():
    codeflash_output = _get_url_for_version("1.0.0")
    codeflash_output = _get_url_for_version("2.1.3")
    # Outputs were verified to be equal to the original implementation

# Test special version input
def test_special_version():
    codeflash_output = _get_url_for_version("1!0+dev")
    # Outputs were verified to be equal to the original implementation

# Test empty version input
def test_empty_version():
    codeflash_output = _get_url_for_version("")
    # Outputs were verified to be equal to the original implementation

# Test non-standard version formats
def test_non_standard_version():
    codeflash_output = _get_url_for_version("beta")
    codeflash_output = _get_url_for_version("v1.0.0-alpha")
    # Outputs were verified to be equal to the original implementation

# Test version with special characters
def test_version_with_special_characters():
    codeflash_output = _get_url_for_version("1.0.0-rc1")
    codeflash_output = _get_url_for_version("2.0.0+build123")
    # Outputs were verified to be equal to the original implementation

# Test whitespace in version input
def test_whitespace_in_version():
    codeflash_output = _get_url_for_version(" 1.0.0 ")
    codeflash_output = _get_url_for_version(" 1.0.0")
    # Outputs were verified to be equal to the original implementation

# Test numeric version input
def test_numeric_version():
    with pytest.raises(TypeError):
        _get_url_for_version(123)
    # Outputs were verified to be equal to the original implementation

# Test None as version input
def test_none_version():
    with pytest.raises(TypeError):
        _get_url_for_version(None)
    # Outputs were verified to be equal to the original implementation

# Test large version input
def test_large_version():
    large_version = "1.0.0" * 100
    expected_url = f"https://codeload.github.com/dagster-io/dagster/tar.gz/{large_version}"
    codeflash_output = _get_url_for_version(large_version)
    # Outputs were verified to be equal to the original implementation

# Test URL encoding (note: the function does not perform URL encoding)
def test_url_encoding():
    codeflash_output = _get_url_for_version("1.0.0 with spaces")
    # Outputs were verified to be equal to the original implementation

# Test edge cases
def test_edge_cases():
    codeflash_output = _get_url_for_version("1!0+dev ")
    codeflash_output = _get_url_for_version("1!0+dev1")
    # Outputs were verified to be equal to the original implementation

# Large scale test case
def test_large_scale():
    versions = [f"1.0.{i}" for i in range(1000)]
    expected_urls = [f"https://codeload.github.com/dagster-io/dagster/tar.gz/1.0.{i}" for i in range(1000)]
    for version, expected_url in zip(versions, expected_urls):
        codeflash_output = _get_url_for_version(version)
    # Outputs were verified to be equal to the original implementation

🔘 (none found) − ⏪ Replay Tests

Here's an optimized version of the given program. The key improvement here is reducing the function call overhead by directly embedding `_get_target_for_version` logic within `_get_url_for_version`.



With this change.
1. `_get_target_for_version` is optimized using a single return statement.
2. `_get_url_for_version` is slightly optimized by inlining the logic, but it does explicitly keep the optimized `_get_target_for_version` function for potential reuse elsewhere.
@codeflash-ai codeflash-ai bot added the ⚡️ codeflash Optimization PR opened by Codeflash AI label Jul 27, 2024
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