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### Motivation * We have no recommended way to force subprocess command be (un)threadable * #4214 * #2119 * #5003 * It's interesting opportunity to have a way to modify specs and CP using `SpecModifierAlias`. ### Before ```xsh !(ssh host -T "echo 1") # output='' # EXPECTED: 1 __xonsh__.commands_cache.threadable_predictors['ssh'] = lambda *a, **kw: True !(ssh host -T "echo 1") ``` ### After ```xsh xthread # Mark command as threadable. !(xthread ssh host -T "echo 1") # output='1' ``` Closes: * Closes #4214 * Closes #2119 * Partially closes #5003 Implementation of `SpecModifierAlias` will help in: * #2618 JFYI #5413 ## For community ⬇️ **Please click the 👍 reaction instead of leaving a `+1` or 👍 comment** --------- Co-authored-by: a <1@1.1> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Gil Forsyth <gforsyth@users.noreply.github.com>
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24 lines
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**Added:**
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* Added ``xthread`` and ``xunthread`` aliases to force command running as threaded and unthreaded.
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* Added ``SpecModifierAlias`` class to have an ability to create alias that modifies spec before run e.g. ``xthread`` alias.
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**Changed:**
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**Deprecated:**
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**Removed:**
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**Fixed:**
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**Security:**
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