00 導言

      在上上講《Fabric 環境搭建時bootstrap.sh幫我們做了什麼？》中，我們知道bootstrap.sh幫我們做了三件事：
      1. 從github上克隆 hyperledger/fabric-samples並進入該目錄，然後檢出適當的版本
      2. 在fabric-samples目錄下安裝特定平臺的 Hyperledger Fabric 二進位制可執行檔案 和配置檔案
      3.下載 指定版本的Hyperledger Fabric 的docker映象

      其中第二件事是執行curl去下載tar包並解壓：

$ curl https:
 
//nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric/hyperledger-fabric/linux-amd64-1.2.0/hyperledger-fabric-linux-amd64-1.2.0.tar.gz
$ curl https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric-ca/hyperledger-fabric-ca/linux-amd64-1.2.0/hyperledger-fabric-ca-linux-amd64-1.2
 
.0.tar.gz

      這兩個tar包裡面包含了下面這些二進位制檔案和一個指令碼檔案：
- configtxgen
- configtxlator
- cryptogen
- discover
- idemixgen
- orderer
- peer
- fabric-ca-client
- get-docker-images.sh

      其實，這些二進位制檔案我們也可以通過編譯fabric和fabric-ca的原始碼得到。下面我們就來說說怎麼編譯得到它們。

01 下載fabric原始碼

      用git把fabric原始碼從github上克隆下來

$ 
 
mkdir -p $GOPATH/src/github.com/hyperledger
$ cd $GOPATH/src/github.com/hyperledger
$ git clone https://github.com/hyperledger/fabric.git

02 編譯fabric原始碼

     編譯之前請確保系統中已經安裝了Go語言執行環境和正確的配置了環境變數。然後執行make release編譯。

$ cd fabric
$ make release
Building release/linux-amd64/bin/configtxgen for linux-amd64
mkdir -p release/linux-amd64/bin
CGO_CFLAGS=" " GOOS=linux GOARCH=amd64 go build -o /home/blockchain/go/src/github.com/hyperledger/fabric/release/linux-amd64/bin/configtxgen -tags "experimental" -ldflags "-X github.com/hyperledger/fabric/common/tools/configtxgen/metadata.CommitSHA=2be396e88" github.com/hyperledger/fabric/common/tools/configtxgen
Building release/linux-amd64/bin/cryptogen for linux-amd64
mkdir -p release/linux-amd64/bin
CGO_CFLAGS=" " GOOS=linux GOARCH=amd64 go build -o /home/blockchain/go/src/github.com/hyperledger/fabric/release/linux-amd64/bin/cryptogen -tags "experimental" -ldflags "-X github.com/hyperledger/fabric/common/tools/cryptogen/metadata.CommitSHA=2be396e88" github.com/hyperledger/fabric/common/tools/cryptogen
Building release/linux-amd64/bin/idemixgen for linux-amd64
mkdir -p release/linux-amd64/bin
CGO_CFLAGS=" " GOOS=linux GOARCH=amd64 go build -o /home/blockchain/go/src/github.com/hyperledger/fabric/release/linux-amd64/bin/idemixgen -tags "experimental" -ldflags "-X github.com/hyperledger/fabric/common/tools/idemixgen/metadata.CommitSHA=2be396e88" github.com/hyperledger/fabric/common/tools/idemixgen
Building release/linux-amd64/bin/discover for linux-amd64
mkdir -p release/linux-amd64/bin
CGO_CFLAGS=" " GOOS=linux GOARCH=amd64 go build -o /home/blockchain/go/src/github.com/hyperledger/fabric/release/linux-amd64/bin/discover -tags "experimental" -ldflags "-X github.com/hyperledger/fabric/cmd/discover/metadata.CommitSHA=2be396e88" github.com/hyperledger/fabric/cmd/discover
Building release/linux-amd64/bin/configtxlator for linux-amd64
mkdir -p release/linux-amd64/bin
CGO_CFLAGS=" " GOOS=linux GOARCH=amd64 go build -o /home/blockchain/go/src/github.com/hyperledger/fabric/release/linux-amd64/bin/configtxlator -tags "experimental" -ldflags "-X github.com/hyperledger/fabric/common/tools/configtxlator/metadata.CommitSHA=2be396e88" github.com/hyperledger/fabric/common/tools/configtxlator
Building release/linux-amd64/bin/peer for linux-amd64
mkdir -p release/linux-amd64/bin
CGO_CFLAGS=" " GOOS=linux GOARCH=amd64 go build -o /home/blockchain/go/src/github.com/hyperledger/fabric/release/linux-amd64/bin/peer -tags "experimental" -ldflags "-X github.com/hyperledger/fabric/common/metadata.Version=1.2.1 -X github.com/hyperledger/fabric/common/metadata.CommitSHA=2be396e88 -X github.com/hyperledger/fabric/common/metadata.BaseVersion=0.4.10 -X github.com/hyperledger/fabric/common/metadata.BaseDockerLabel=org.hyperledger.fabric -X github.com/hyperledger/fabric/common/metadata.DockerNamespace=hyperledger -X github.com/hyperledger/fabric/common/metadata.BaseDockerNamespace=hyperledger -X github.com/hyperledger/fabric/common/metadata.Experimental=true" github.com/hyperledger/fabric/peer
Building release/linux-amd64/bin/orderer for linux-amd64
mkdir -p release/linux-amd64/bin
CGO_CFLAGS=" " GOOS=linux GOARCH=amd64 go build -o /home/blockchain/go/src/github.com/hyperledger/fabric/release/linux-amd64/bin/orderer -tags "experimental" -ldflags "-X github.com/hyperledger/fabric/common/metadata.Version=1.2.1 -X github.com/hyperledger/fabric/common/metadata.CommitSHA=2be396e88 -X github.com/hyperledger/fabric/common/metadata.BaseVersion=0.4.10 -X github.com/hyperledger/fabric/common/metadata.BaseDockerLabel=org.hyperledger.fabric -X github.com/hyperledger/fabric/common/metadata.DockerNamespace=hyperledger -X github.com/hyperledger/fabric/common/metadata.BaseDockerNamespace=hyperledger -X github.com/hyperledger/fabric/common/metadata.Experimental=true" github.com/hyperledger/fabric/orderer
mkdir -p release/linux-amd64/bin

03 檢視是否編譯成功

      編譯好的二進位制可執行檔案放哪裡了呢？放在了下面這個目錄：

$ cd $GOPATH/src/github.com/hyperledger/fabric/release/linux-amd64/bin/
$ ls -l 
總用量 117048
-rwxr-xr-x 1 blockchain blockchain 16749240 8月   1 18:26 configtxgen
-rwxr-xr-x 1 blockchain blockchain 17886416 8月   1 18:26 configtxlator
-rwxr-xr-x 1 blockchain blockchain  8641432 8月   1 18:26 cryptogen
-rwxr-xr-x 1 blockchain blockchain 17576512 8月   1 18:26 discover
-rwxr-xr-x 1 blockchain blockchain      829 8月   1 18:26 get-docker-images.sh
-rwxr-xr-x 1 blockchain blockchain  7138016 8月   1 18:26 idemixgen
-rwxr-xr-x 1 blockchain blockchain 22027704 8月   1 18:26 orderer
-rwxr-xr-x 1 blockchain blockchain 29819976 8月   1 18:26 peer

04 下載fabric-ca原始碼

$ cd $GOPATH/src/github.com/hyperledger
$ git clone https://github.com/hyperledger/fabric-ca.git

05 編譯fabric-ca原始碼

$ cd fabric-ca
$ make fabric-ca-server
$ make fabric-ca-client

06 檢視是否編譯成功

$ cd bin
$ ls -l
總用量 40876
-rwxr-xr-x 1 blockchain blockchain 19626520 8月   2 16:40 fabric-ca-client
-rwxr-xr-x 1 blockchain blockchain 22228224 8月   2 16:40 fabric-ca-server

07 總結

      實際開發中，我們也許並不需要自己手動去編譯生成這些檔案，可以直接執行bootstrap.sh這個指令碼幫我們下載好。但作為學習研究，我們還是有必要知道這些二進位制檔案是怎麼來的。知其然也知其所以然嘛！正如每個具有哲學精神的我們(diao si)每天都在問的三個問題：”我是誰?我從哪裡來?我在幹什麼?”