Fix install-build-deps.sh --quick-check

Fix install-build-deps.sh --quick-check

The algorithm we were using to parse the output of dpkg-query was out of date because the format changed.

This CL tries to make as little assumptions as possible about the output of dpkg-query, using the return code to determine failure instead of the output.  However, we still rely on the last word of an error message being a package name, although this is only used to display which packages are missing.

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org

Committed: https://crrev.com/73b3a441a128d14c81bed7afc981d35f0f401f1d
Cr-Commit-Position: refs/heads/master@{#433327}

[Tom (Use chromium acct), 2016-11-18 19:09:17]

thomasanderson@google.com changed reviewers:
+ dpranke@chromium.org, mmoss@chromium.org

[Tom (Use chromium acct), 2016-11-18 19:09:18]

mmoss@: please review
dpranke@: OWNERS approval

[Dirk Pranke, 2016-11-18 20:49:33]

lgtm.

[Dirk Pranke, 2016-11-18 21:11:30]

Oh, can you file a bug for this work, also?

[Tom (Use chromium acct), 2016-11-18 22:50:54]

Description was changed from

==========
Fix install-build-deps.sh --quick-check
==========

to

==========
Fix install-build-deps.sh --quick-check

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org
==========

[Tom (Use chromium acct), 2016-11-18 22:51:33]

On 2016/11/18 21:11:30, Dirk Pranke wrote:
> Oh, can you file a bug for this work, also?

Done.

[Tom (Use chromium acct), 2016-11-18 22:55:25]

Description was changed from

==========
Fix install-build-deps.sh --quick-check

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org
==========

to

==========
Fix install-build-deps.sh --quick-check

The algorithm we were using to parse the output of dpkg-query was out of date
because the format changed.

This CL tries to make as little assumptions as possible about the output of
dpkg-query, using the return code to determine failure instead of the output. 
However, we still rely on the last word of an error message being a package
name, although this is only used to display which packages are missing.

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org
==========

[Michael Moss, 2016-11-18 22:57:27]

lgtm

[Tom (Use chromium acct), 2016-11-18 22:58:25]

The CQ bit was checked by thomasanderson@google.com

[commit-bot: I haz the power, 2016-11-18 22:59:32]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-18 23:16:35]

Description was changed from

==========
Fix install-build-deps.sh --quick-check

The algorithm we were using to parse the output of dpkg-query was out of date
because the format changed.

This CL tries to make as little assumptions as possible about the output of
dpkg-query, using the return code to determine failure instead of the output. 
However, we still rely on the last word of an error message being a package
name, although this is only used to display which packages are missing.

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org
==========

to

==========
Fix install-build-deps.sh --quick-check

The algorithm we were using to parse the output of dpkg-query was out of date
because the format changed.

This CL tries to make as little assumptions as possible about the output of
dpkg-query, using the return code to determine failure instead of the output. 
However, we still rely on the last word of an error message being a package
name, although this is only used to display which packages are missing.

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org
==========

[commit-bot: I haz the power, 2016-11-18 23:16:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-18 23:19:07]

Description was changed from

==========
Fix install-build-deps.sh --quick-check

The algorithm we were using to parse the output of dpkg-query was out of date
because the format changed.

This CL tries to make as little assumptions as possible about the output of
dpkg-query, using the return code to determine failure instead of the output. 
However, we still rely on the last word of an error message being a package
name, although this is only used to display which packages are missing.

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org
==========

to

==========
Fix install-build-deps.sh --quick-check

The algorithm we were using to parse the output of dpkg-query was out of date
because the format changed.

This CL tries to make as little assumptions as possible about the output of
dpkg-query, using the return code to determine failure instead of the output. 
However, we still rely on the last word of an error message being a package
name, although this is only used to display which packages are missing.

BUG=666937
R=mmoss@chromium.org,dpranke@chromium.org

Committed: https://crrev.com/73b3a441a128d14c81bed7afc981d35f0f401f1d
Cr-Commit-Position: refs/heads/master@{#433327}
==========

[commit-bot: I haz the power, 2016-11-18 23:19:08]

Patchset 1 (id:??) landed as
https://crrev.com/73b3a441a128d14c81bed7afc981d35f0f401f1d
Cr-Commit-Position: refs/heads/master@{#433327}