Building mosh-chrome failing

[edso...@gmail.com]

Hi,

I've got two errors building mosh-chrome:

1) What version of bazel are you using to build mosh-chrome? The current version of bazel is 0.4.5, but you have tagged io_bazel to 0.3.0 in the top level WORKSPACE fiile

If using bazel 0.4.5 you will get an error using the io_bazel tag 0.3.0 building protobuf.

I downgraded to bazel 0.3.2, and now get the following warnings instead of of a cryptic error in bazel 0.4.5.

WARNING: /home/edsouza/.cache/bazel/_bazel_edsouza/519fa9779a1f3bc07135a6b64620b0bf/external/io_bazel/third_party/protobuf/protobuf.bzl:95:19: Variables HOST_CFG and DATA_CFG are deprecated in favor of strings "host" and "data" correspondingly.
WARNING: /home/edsouza/.cache/bazel/_bazel_edsouza/519fa9779a1f3bc07135a6b64620b0bf/external/io_bazel/third_party/protobuf/protobuf.bzl:101:28: Variables HOST_CFG and DATA_CFG are deprecated in favor of strings "host" and "data" correspondingly.

2) The second error I have no idea how to get around this. I run the following command:

bazel build //:mosh_chrome_dev --config=pnacl

The following error gets printed out. looks like the header files are not downloaded/extracted? bazel complains about different source files each time, but the headers are pretty much are the same.

ERROR: /home/edsouza/.cache/bazel/_bazel_edsouza/519fa9779a1f3bc07135a6b64620b0bf/external/libssh/BUILD:8:1: undeclared inclusion(s) in rule '@libssh//:libssh':
this rule is missing dependency declarations for the following files included by 'external/libssh/src/packet_crypt.c':
'/home/edsouza/.cache/bazel/_bazel_edsouza/519fa9779a1f3bc07135a6b64620b0bf/bazel-sandbox/5f078b5d-edc7-4b8c-a3eb-244f6775b450-17/execroot/mosh-chrome/external/nacl_sdk/toolchain/linux_pnacl/le32-nacl/include/assert.h'
...

ERROR: /home/edsouza/.cache/bazel/_bazel_edsouza/519fa9779a1f3bc07135a6b64620b0bf/external/libssh/BUILD:8:1: undeclared inclusion(s) in rule '@libssh//:libssh':
this rule is missing dependency declarations for the following files included by 'external/libssh/src/external/curve25519_ref.c':
'/home/edsouza/.cache/bazel/_bazel_edsouza/519fa9779a1f3bc07135a6b64620b0bf/bazel-sandbox/35eff48a-4124-4d15-a02f-0aaf713d2ab2-5/execroot/mosh-chrome/external/nacl_sdk/toolchain/linux_pnacl/le32-nacl/include/unistd.h'

Any help would be greatly appreciated.
--
Ellery D'Souza

[edso...@gmail.com]

I was able to successfully build mosh-chrome using the following, but this disables the sandbox:
bazel build //:mosh_chrome_dev --config=pnacl --verbose_failures --local_resources 4096,1.0,1.0 --spawn_strategy=standalone

[Richard Woodbury]

I've managed to forget the details (I thought I wrote it down somewhere in the project, but now I can't find it), but I was not able to get anything past Bazel 0.3.1 to work. I have pinned that version on my build machine so it won't upgrade.

I sorta remember thinking there was a Bazel bug that caused problems. But maybe that's fixed in the latest version. They often do things which are not backward-compatible, so surely there will be a few things that need to be tweaked. 

[Ellery D'Souza]

Hi Richard,

Thanks.  bazel 0.3.1 without an specific extra command line flags.  You might want to update the README.md with the version of bazel used to build mosh-chrome.

 

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[Richard Woodbury]

Done. And I dug up the bug documenting why this is necessary. If I can find some time, I'll look to see if I can remove this restriction with a (hopefully improved) recent Bazel version.

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