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Explain about SystemPackageTool and sudo #1127

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merged 6 commits into from Mar 20, 2019
Merged

Explain about SystemPackageTool and sudo #1127

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6fb03cf
Explain about SystemPackageTool and sudo
uilianries Mar 19, 2019
edaeb01
sudo is not 'it'
uilianries Mar 19, 2019
08505c4
Fix sudo require condition
uilianries Mar 20, 2019
20a7d16
sudo requirements for SystemPackageTool
danimtb Mar 20, 2019
4603917
sudo is available in the PATH
danimtb Mar 20, 2019
7f5d23d
sudo platform is posix
danimtb Mar 20, 2019
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6 changes: 6 additions & 0 deletions reference/conanfile/methods.rst
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Expand Up @@ -573,6 +573,12 @@ Methods:
The use of ``sudo`` in the internals of the ``install()`` and ``update()`` methods is controlled by the ``CONAN_SYSREQUIRES_SUDO``
environment variable, so if the users don't need sudo permissions, it is easy to opt-in/out.

When ``CONAN_SYSREQUIRES_SUDO`` is not defined, Conan will mimic if it is possible to use ``sudo`` based on:
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- Is ``sudo`` available in ``PATH``
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- The platform name should be ``posix``
- UID (user id) should be ``0``
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Conan will keep track of the execution of this method, so that it is not invoked again and again at every Conan command. The execution is
done per package, since some packages of the same library might have different system dependencies. If you are sure that all your binary
packages have the same system requirements, just add the following line to your method:
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