Add support for env variable TACH_CACHE_DIR
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Fallback is `.tach` in the project root. If the value of `TACH_CACHE_DIR` is a relative path, then it is relative to the project root.
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Nov 28, 2025
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thanks for the contribution
| ## Cache storage | ||
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| The computation cache exists within the `.tach` directory in your project root. The directory is managed by Tach, and your cached results are stored on-disk on each machine where tasks are run. | ||
| The computation cache exists within the directory defined by the `TACH_CACHE_DIR` environment variable (default is `.tach`). The directory is managed by Tach, and your cached results are stored on-disk on each machine where tasks are run. |
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| The computation cache exists within the directory defined by the `TACH_CACHE_DIR` environment variable (default is `.tach`). The directory is managed by Tach, and your cached results are stored on-disk on each machine where tasks are run. | |
| The computation cache exists within the directory defined by the `TACH_CACHE_DIR` environment variable (default is `.tach` in your project root). The directory is managed by Tach, and your cached results are stored on-disk on each machine where tasks are run. |
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| path_is_not_absolute_re = compile(r'^(?![a-zA-Z]:[\\/]|\\\\|/|~[/\\])') if os_name == 'nt' else compile(r'^[^/~]') | ||
| if match(path_is_not_absolute_re, env_value): |
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can we use is_absolute from pathlib.Path here
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Fallback is
.tachin the project root. If the value ofTACH_CACHE_DIRis a relative path, then it is relative to the project root.