Cannot find Gemspec file after upgrade

Habitat Help
#1

Hello!

After upgrading from hab 0.55 to 0.59 we are now running into a build issue:

inspec: Preparing to build
inspec: Setting GEM_HOME=/hab/pkgs/jquick/inspec/2.2.41/20180720144235/lib
inspec: Setting GEM_PATH=/hab/pkgs/jquick/inspec/2.2.41/20180720144235/lib
inspec: Building
/hab/cache/src/inspec-2.2.41 /src /src/habitat
ERROR:  Gemspec file not found: inspec.gemspec
inspec: Build time: 9m14s
inspec: Exiting on error
Script done, file is /src/results/logs/inspec.2018-07-20-144235.log

Our plan can be found here: https://github.com/inspec/inspec/blob/master/habitat/plan.sh

Wondering if we should not be using the cache paths anymore or if anything changed.

Thanks!

#2

Ignore that. I haven’t had enough coffee yet :frowning: Continuing investigation.

#3

Looks like this started breaking with the release on the 13th (0.59). As we auto build it on every commit.

#4

Ok what is happening is that when it’s copying the files, it’s not copying it to the location you’re expecting:

Adding a -v to the copy gives us:

'/src/habitat/../inspec.gemspec' -> '/hab/cache/src/inspec-2.2.41/../inspec.gemspec'

You can resolve this by changing line 46 to

cp -R $PLAN_CONTEXT/../* $HAB_CACHE_SRC_PATH/$pkg_dirname/
#5

Progress! But still having other issues now

   inspec: Building
/hab/cache/src/inspec-2.2.41 /src /src/habitat
WARNING:  See http://guides.rubygems.org/specification-reference/ for help
ERROR:  While executing gem ... (Gem::InvalidSpecificationException)
    [".rubocop.yml"] are not files
   inspec: Build time: 6m12s
   inspec: Exiting on error
Script done, file is /src/results/logs/inspec.2018-07-20-152736.log

I can manually build the gem without issues using gem build inspec.gemspec

#6

Ok, I’ve got a better solution

cp -RT $PLAN_CONTEXT/.. $HAB_CACHE_SRC_PATH/$pkg_dirname/

Looking into the 0.55.0 vs 0.56.0 and newer studio, something has changed that causes the PATH ordering to be different. In an attach in 0.55.0:

[7] inspec(do_unpack)> type -a cp
cp is /hab/pkgs/core/coreutils/8.29/20180608092141/bin/cp
cp is /hab/pkgs/core/busybox-static/1.28.1/20180608102729/bin/cp
cp is /hab/pkgs/core/coreutils/8.25/20170513213226/bin/cp
[8] inspec(do_unpack)> hab --version
hab 0.55.0/20180321220925

0.56.0:

[12] inspec(do_unpack)> type -a cp
cp is /hab/pkgs/core/busybox-static/1.28.1/20180608102729/bin/cp
cp is /hab/pkgs/core/coreutils/8.29/20180608092141/bin/cp
cp is /hab/pkgs/core/coreutils/8.25/20170513213226/bin/cp
[13] inspec(do_unpack)> hab --version
hab 0.56.0/20180530234036

As you can see, with 0.56.0, cp from busybox has taken precedence over cp from coreutils, which would cause this change in behavior.

#7

Thanks that fixed it!

#8

@jquick @smacfarlane Alternatively, I think you can also just move coreutils up above busybox in your pkg_deps array.