build: Convert project to use glide. (#689)

This converts the project to allow btcd to be used with the glide
package manager in order to provide stable and reproducible builds
without the user having to jump through all of the hoops as they do
today.

It consists of adding a glide.yaml file which identifies the project
dependencies and locations along with a glide.lock file which contains
the complete dependency tree pinned to specific versions.  Glide uses
these files to download the packages (or updates) to a local vendor
directory and checkout the correct pinned versions.  The go tool, in
turn, is used to build/install btcd and will use the pinned versions in
the vendor directory.

This also updates TravisCI to build using glide, removes some of the
exceptions in the lint checks which are no longer required, and updates
the README.md with the new instructions needed to build the project with
glide.

.gitignore

@@ -17,6 +17,7 @@ btcd.db
 # Folders
 _obj
 _test
+vendor
 
 # Architecture specific extensions/prefixes
 *.[568vq]

.travis.yml

@@ -6,10 +6,11 @@ sudo: false
 before_install:
   - gotools=golang.org/x/tools
 install:
-  - go get -d -t -v ./...
+  - go get -v github.com/Masterminds/glide
+  - glide install
   - go get -v $gotools/cmd/cover
-  - go get -v github.com/bradfitz/goimports
   - go get -v github.com/golang/lint/golint
 script:
   - export PATH=$PATH:$HOME/gopath/bin
+  - export GO15VENDOREXPERIMENT=1
   - ./goclean.sh

README.md

@@ -55,18 +55,26 @@ $ go env GOROOT GOPATH
 
 NOTE: The `GOROOT` and `GOPATH` above must not be the same path.  It is
 recommended that `GOPATH` is set to a directory in your home directory such as
-`~/goprojects` to avoid write permission issues.
+`~/goprojects` to avoid write permission issues.  It is also recommended to add
+`$GOPATH/bin` to your `PATH` at this point.
 
-- Run the following command to obtain btcd, all dependencies, and install it:
+**NOTE:** If you are using Go 1.5, you must manually enable the vendor
+experiment by setting the `GO15VENDOREXPERIMENT` environment variable to `1`.
+This step is not required for Go 1.6.
+
+- Run the following commands to obtain btcd, all dependencies, and install it:
 
 ```bash
-$ go get -u github.com/btcsuite/btcd/...
+$ go get -u github.com/Masterminds/glide
+$ git clone https://github.com/btcsuite/btcd $GOPATH/src/github.com/btcsuite/btcd
+$ cd $GOPATH/src/github.com/btcsuite/btcd
+$ glide install
+$ go install . ./cmd/...
 ```
 
-- btcd (and utilities) will now be installed in either ```$GOROOT/bin``` or
-  ```$GOPATH/bin``` depending on your configuration.  If you did not already
-  add the bin directory to your system path during Go installation, we
-  recommend you do so now.
+- btcd (and utilities) will now be installed in ```$GOPATH/bin```.  If you did
+  not already add the bin directory to your system path during Go installation,
+  we recommend you do so now.
 
 ## Updating
 
@@ -76,10 +84,12 @@ Install a newer MSI
 
 #### Linux/BSD/MacOSX/POSIX - Build from Source
 
-- Run the following command to update btcd, all dependencies, and install it:
+- Run the following commands to update btcd, all dependencies, and install it:
 
 ```bash
-$ go get -u -v github.com/btcsuite/btcd/...
+$ cd $GOPATH/src/github.com/btcsuite/btcd
+$ git pull && glide install
+$ go install . ./cmd/...
 ```
 
 ## Getting Started

glide.lock

@@ -0,0 +1,57 @@
+hash: 9b8ff781a12daad991983e9a421a320e905eecc4e9ff0b0643e790f472bc78c8
+updated: 2016-05-06T10:10:16.348595-05:00
+imports:
+- name: github.com/btcsuite/btclog
+  version: f96df2375f37300305f329b8e5258764b4f19a7f
+- name: github.com/btcsuite/btcutil
+  version: 2c26dd81a59fd671a2218d63ad138a6dd4d693bd
+  subpackages:
+  - .
+  - bloom
+  - base58
+- name: github.com/btcsuite/fastsha256
+  version: 302ad4db268b46f9ebda3078f6f7397f96047735
+- name: github.com/btcsuite/go-flags
+  version: 6c288d648c1cc1befcb90cb5511dcacf64ae8e61
+- name: github.com/btcsuite/go-socks
+  version: cfe8b59e565c1a5bd4e2005d77cd9aa8b2e14524
+  subpackages:
+  - socks
+- name: github.com/btcsuite/golangcrypto
+  version: 53f62d9b43e87a6c56975cf862af7edf33a8d0df
+  subpackages:
+  - ripemd160
+- name: github.com/btcsuite/goleveldb
+  version: 7834afc9e8cd15233b6c3d97e12674a31ca24602
+  subpackages:
+  - leveldb
+  - leveldb/comparer
+  - leveldb/errors
+  - leveldb/filter
+  - leveldb/iterator
+  - leveldb/opt
+  - leveldb/util
+  - leveldb/cache
+  - leveldb/journal
+  - leveldb/memdb
+  - leveldb/storage
+  - leveldb/table
+- name: github.com/btcsuite/seelog
+  version: 313961b101eb55f65ae0f03ddd4e322731763b6c
+- name: github.com/btcsuite/snappy-go
+  version: 0bdef8d067237991ddaa1bb6072a740bc40601ba
+- name: github.com/btcsuite/websocket
+  version: 31079b6807923eb23992c421b114992b95131b55
+- name: github.com/btcsuite/winsvc
+  version: f8fb11f83f7e860e3769a08e6811d1b399a43722
+  subpackages:
+  - eventlog
+  - mgr
+  - svc
+  - registry
+  - winapi
+- name: github.com/davecgh/go-spew
+  version: 5215b55f46b2b919f50a1df0eaa5886afe4e3b3d
+  subpackages:
+  - spew
+devImports: []

glide.yaml

@@ -0,0 +1,35 @@
+package: github.com/btcsuite/btcd
+import:
+- package: github.com/btcsuite/btclog
+- package: github.com/btcsuite/btcutil
+  subpackages:
+  - .
+  - bloom
+  - base58
+- package: github.com/btcsuite/fastsha256
+- package: github.com/btcsuite/go-flags
+- package: github.com/btcsuite/go-socks
+  subpackages:
+  - socks
+- package: github.com/btcsuite/golangcrypto
+  subpackages:
+  - ripemd160
+- package: github.com/btcsuite/goleveldb
+  subpackages:
+  - leveldb
+  - leveldb/comparer
+  - leveldb/errors
+  - leveldb/filter
+  - leveldb/iterator
+  - leveldb/opt
+  - leveldb/util
+- package: github.com/btcsuite/seelog
+- package: github.com/btcsuite/websocket
+- package: github.com/btcsuite/winsvc
+  subpackages:
+  - eventlog
+  - mgr
+  - svc
+- package: github.com/davecgh/go-spew
+  subpackages:
+  - spew

goclean.sh

@@ -1,20 +1,18 @@
 #!/bin/bash
 # The script does automatic checking on a Go package and its sub-packages, including:
 # 1. gofmt         (http://golang.org/cmd/gofmt/)
-# 2. goimports     (https://github.com/bradfitz/goimports)
-# 3. golint        (https://github.com/golang/lint)
-# 4. go vet        (http://golang.org/cmd/vet)
-# 5. race detector (http://blog.golang.org/race-detector)
-# 6. test coverage (http://blog.golang.org/cover)
+# 2. golint        (https://github.com/golang/lint)
+# 3. go vet        (http://golang.org/cmd/vet)
+# 4. race detector (http://blog.golang.org/race-detector)
+# 5. test coverage (http://blog.golang.org/cover)
 
 set -ex
 
 # Automatic checks
-test -z "$(gofmt -l -w . | tee /dev/stderr)"
-test -z "$(goimports -l -w . | tee /dev/stderr)"
-test -z "$(golint ./... | grep -v 'ALL_CAPS\|OP_\|NewFieldVal\|RpcCommand\|RpcRawCommand\|RpcSend\|Dns' | tee /dev/stderr)"
-test -z "$(go tool vet . 2>&1 | grep -v 'Example\|newestSha' | tee /dev/stderr)"
-env GORACE="halt_on_error=1" go test -v -race ./...
+test -z "$(go fmt $(glide novendor) | tee /dev/stderr)"
+test -z "$(for package in $(glide novendor); do golint $package; done | grep -v 'ALL_CAPS\|OP_\|NewFieldVal' | tee /dev/stderr)"
+test -z "$(go vet $(glide novendor) 2>&1 | tee /dev/stderr)"
+env GORACE="halt_on_error=1" go test -v -race $(glide novendor)
 
 # Run test coverage on each subdirectories and merge the coverage profile.
 
@@ -23,7 +21,8 @@ echo "mode: count" > profile.cov
 
 # Standard go tooling behavior is to ignore dirs with leading underscores.
 for dir in $(find . -maxdepth 10 -not -path '.' -not -path './.git*' \
-    -not -path '*/_*' -not -path './cmd*' -not -path './release*' -type d)
+    -not -path '*/_*' -not -path './cmd*' -not -path './release*' \
+    -not -path './vendor*' -type d)
 do
 if ls $dir/*.go &> /dev/null; then
   go test -covermode=count -coverprofile=$dir/profile.tmp $dir