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Published: Mar 28, 2017 License: Apache-2.0

README

Tl;Dr

You probably want to add a missing package / update a package. Do:

cd src/server
govendor list +missing

To see what you're missing, then add it via:

govendor add yourpkg

Or add all missing packages by:

govendor add +missing

To update existing packages, read on ...

How Govendor Works

  1. The vendor.json is the source of truth

Don't add things there manually.

The only package that isn't in there is the symlink to the client library.

  1. To check the state of the world:

Run govendor list

It'll list all the packages w certain flags ... which they call 'status'

(More on that here)

Things to note in particular are packages marked 'm' for missing

  • these are dependencies that the code relies on but doesn't have
  • so you'll want to add them

Also note any dependencies that are marked 'e' for external

  • these are dependencies that are external to our repo
  1. To add / update dependencies
  • govendor add somepkg adds it to the repo
  • govendor update somepkg is local
    • it uses whatever version of the pkg is available on $GOPATH/src
    • it DOES NOT ever use the network to get a package
  • govendor fetch somepkg is non local
    • it uses the network to fetch a new package version
    • I believe it bypasses any copies in $GOPATH/src
  1. Blow it all away

This will remove all dependencies and you'll start from scratch. It's a sledgehammer but may be better than fighting any conflicts for too long.

In my experience, if I'm tracking down more than a few conflicting errors, I'll blow away and restart.

Note -- you'll have to replace the client symlink at src/server/vendor/github.com/pachyderm/pachyderm/src/client

rm -rf src/server/vendor
cd src/server/vendor
govendor init
govendor add +external

Then replace the client symlink and debug / get things compiling and passing again.

  1. Other good things to know
  • govendor does not understand what a 'repo' is -- only a single go package
  • so we have two options - update all sub packages, or do them by hand

Troubleshooting

Internal Packages

If you see a message like this:

CGOENABLED=0 GO15VENDOREXPERIMENT=1 go test -cover -v -short $(go list ./src/server/... | grep -v '/src/server/vendor/')
package github.com/pachyderm/pachyderm/src/server/cmd/job-shim
        imports github.com/pachyderm/pachyderm/src/client
        imports github.com/pachyderm/pachyderm/src/client/pfs
        imports github.com/gengo/grpc-gateway/runtime
        imports google.golang.org/grpc
        imports google.golang.org/grpc/internal: use of internal package not allowed

What's happening is that while google.golang.org.grpc is vendored (but double check by looking under src/server/vendor/google.golang.org/), its looking for google.golang.org/grpc/internal and if it can't find it under the vendored directory, it will default to looking under $GOPATH, which fails the internal requirement.

To fix this, just do:

govendor add google.golang.org/grpc/internal

Travis Breaks, But Locally Tests Work

It probably means you didn't blow away the library in $GOPATH and locally were using a copy that wasn't vendored. Repeat the steps above under the 'Manually' heading.

Directories

Path Synopsis
cmd
pfs
drive
Package drive provides the definitions for the low-level pfs storage drivers.
Package drive provides the definitions for the low-level pfs storage drivers.
fuse
Package fuse is a generated protocol buffer package.
Package fuse is a generated protocol buffer package.
pkg
backoff
Package backoff implements backoff algorithms for retrying operations.
Package backoff implements backoff algorithms for retrying operations.
cache/groupcachepb
Package groupcachepb is a generated protocol buffer package.
Package groupcachepb is a generated protocol buffer package.
dag
deploy
Package deploy is a generated protocol buffer package.
Package deploy is a generated protocol buffer package.
hashtree
Package hashtree is a generated protocol buffer package.
Package hashtree is a generated protocol buffer package.
metrics
Package metrics is a generated protocol buffer package.
Package metrics is a generated protocol buffer package.
obj
sync
Package sync provides utility functions similar to `git pull/push` for PFS
Package sync provides utility functions similar to `git pull/push` for PFS
watch
Package watch implements better watch semantics on top of etcd.
Package watch implements better watch semantics on top of etcd.
worker
Package worker is a generated protocol buffer package.
Package worker is a generated protocol buffer package.
pps

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