Add Snappy package

[chfast]

No description provided.

[ruslo]

Testing:

• https://ci.appveyor.com/project/ingenue/hunter/build/1.0.2128
• https://travis-ci.org/ingenue/hunter/builds/262825219?utm_source=github_status&utm_medium=notification

[chfast]

Can you explain the TOOLCHAIN=analyse failures? The log is hard to parse.

[ruslo]

analyzer thinks that nullpointer can be used in memcpy:

/home/travis/build/ingenue/hunter/_testing/Hunter/_Base/13efc7d/487d0d9/9e4de4b/Build/Snappy/Source/snappy.cc:1376:5: warning: Null pointer passed as an argument to a 'nonnull' parameter
    memcpy(op_ptr_, ip, avail);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~

[chfast]

I've seen this, but it is a warning. I'll report upstream.

[ruslo]

I've seen this, but it is a warning

This is how clang analyzer works - it reports warnings. Polly toolchain analyze use script to turn it into error, otherwise this toolchain is useless :)

I'll report upstream.

Okay, but if you're not planning to fix it fast it make sense to exclude it. We can always enable it back if needed.

[chfast]

I'd like to disable it.

The issue with memcpy() is known problem. Standard says you cannot pass null pointer there, but everyone knows implementations handles nulls anyway.

[chfast]

Can we proceed?

[ruslo]

Feel free to send pull request with exclude to pkg.snappy.

[chfast]

Have you tested it?

[ruslo]

Have you tested it?

I haven't received notification that you've updated ingenue#110. Will run tests now.

[ruslo]

Testing:

• https://ci.appveyor.com/project/ingenue/hunter/build/1.0.2141
• https://travis-ci.org/ingenue/hunter/builds/263488582?utm_source=github_status&utm_medium=notification

[ruslo]

Uploading:

• https://ci.appveyor.com/project/ingenue/hunter/build/1.0.2145
• https://travis-ci.org/ingenue/hunter/builds/263969435?utm_source=github_status&utm_medium=notification

[ruslo]

Released: https://github.com/ruslo/hunter/releases/tag/v0.19.68