On cygwin, disable the check that the output is not group or world
writable. File permissions on Cygwin are rather complex, and in this case this check introduced a problem with build jobs invoke from outside of Cygwin (MSYS). It seemed almost impossible to fix the permissions of the directory, so for now this safety check is disabled on Cygwin.
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@ -1400,6 +1400,7 @@ void DerivationGoal::computeClosure()
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% path % algo % printHash(h) % printHash(h2));
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}
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#ifndef __CYGWIN__
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/* Check that the output is not group or world writable, as
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that means that someone else can have interfered with the
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build. Also, the output should be owned by the build
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@ -1407,6 +1408,7 @@ void DerivationGoal::computeClosure()
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if ((st.st_mode & (S_IWGRP | S_IWOTH)) ||
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(buildUser.getUID() != 0 && st.st_uid != buildUser.getUID()))
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throw Error(format("suspicious ownership or permission on `%1%'; rejecting this build output") % path);
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#endif
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/* Get rid of all weird permissions. */
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canonicalisePathMetaData(path);
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