DH_TESTROOT(1)                     Debhelper                    DH_TESTROOT(1)

       dh_testroot - ensure that a package is built with necessary level of
       root permissions

       dh_testroot [debhelperoptions]

       dh_testroot is used to determine if the target is being run with
       suffient access to root(-like) features.

       The definition of sufficient access depends on whether the builder (the
       tool invoking the debian/rules target) supports the Rules-Requires-Root
       (R^3) field.  If the builder supports R^3, then it will set the
       environment variable DEB_RULES_REQUIRES_ROOT and dh_testroot will
       validate that the builder followed the minimum requirements for the
       given value of DEB_RULES_REQUIRES_ROOT.

       If the builder does not support Rules-Requires-Root, then it will not
       set the DEB_RULES_REQUIRES_ROOT environment variable.  This will in
       turn make dh_testroot (and the rest of debhelper) fall back to assuming
       that (fake)root is implied.

       The following is a summary of how dh_testroot behaves based on the
       DEB_RULES_REQUIRES_ROOT environment variable (leading and trailing
       whitespace in the variable is ignored).

       -   If unset, or set to "binary-targets", then dh_testroot asserts that
           it is run as root or under fakeroot(1).

       -   If set to "no", then dh_testroot returns successfully (without
           performing any additional checks).

       -   If set to any other value than the above, then dh_testroot asserts
           that it is either run as root (or under fakeroot(1)) or the builder
           has provided the DEB_GAIN_ROOT_CMD environment variable (e.g. via
           dpkg-buildpackage -r).

       Please note that dh_testroot does not read the Rules-Requires-Root
       field.  Which implies that dh_testroot may produce incorrect result if
       the builder lies in DEB_RULES_REQUIRES_ROOT.  On the flip side, it also
       enables things like testing for what will happen when
       DEB_RULES_REQUIRES_ROOT is set to a given value.


       This program is a part of debhelper.

       Joey Hess <joeyh@debian.org>

12.10ubuntu1                      2020-03-27                    DH_TESTROOT(1)
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