Only one location for dependencies install instructions.

Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>

5 files changed, 63 insertions, 57 deletions

diff --git a/docs/part-2/0_Abstract.md b/docs/part-2/0_Abstract.md
index 45f5f40..aa7ddc4 100644
--- a/docs/part-2/0_Abstract.md
+++ b/docs/part-2/0_Abstract.md
@@ -4,3 +4,48 @@
 
 This 2nd part is the "technical" documentation of all XDS pieces/tools that allows
 for example to fine tune XDS configuration or rebuild all XDS tools from scratch.
+
+## Prerequisites
+
+To build xds binaries you need to install first [Go](https://golang.org/doc/install) version 1.8.1 or higher and some other tools. To build `xds-server` and `xds-agent`
+you also need to install in addition `nodejs`.
+
+**Ubuntu:**
+
+```bash
+# Install various tools
+sudo apt-get install git make npm curl git zip unzip
+
+# Install Go
+source /etc/os-release
+wget -O- "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x52B59B1571A79DBC054901C0F6BC817356A3D45E" | sudo apt-key add -
+sudo bash -c "cat >> /etc/apt/sources.list.d/golang.list <<EOF
+deb http://ppa.launchpad.net/longsleep/golang-backports/ubuntu ${VERSION_CODENAME} main
+EOF"
+sudo apt-get update
+sudo apt-get install golang-go
+
+# Install nodejs LTS version and angular-cli (only mandatory for xds-server and xds-agent)
+sudo npm install --global n @angular/cli
+sudo n lts
+```
+
+**openSUSE:**
+
+```bash
+# Install various tools
+sudo zypper install git make npm curl zip unzip
+
+# Install Go
+# ( the value 'DISTRO' can be set to {openSUSE_Leap_42.2, openSUSE_Leap_42.3, openSUSE_Tumbleweed} )
+source /etc/os-release; export DISTRO="openSUSE_Leap_$VERSION"
+sudo zypper ar http://download.opensuse.org/repositories/devel:/languages:/go/${DISTRO}/devel:languages:go.repo
+sudo zypper --gpg-auto-import-keys ref
+sudo zypper install go1.9
+
+# Install nodejs LTS version and angular-cli (only mandatory for xds-server and xds-agent)
+sudo npm install --global n @angular/cli
+sudo n lts
+```
+
+Don't forget to open new user session after installing these packages.
diff --git a/docs/part-2/1_xds-server.md b/docs/part-2/1_xds-server.md
index b4022b2..2c31b1e 100644
--- a/docs/part-2/1_xds-server.md
+++ b/docs/part-2/1_xds-server.md
@@ -401,29 +401,9 @@ See also [xds-agent documentation](2_xds-agent.html) for more details.
 
 ### Dependencies
 
-- Install and setup [Go](https://golang.org/doc/install) version 1.8.1 or higher to compile this tool.
-- Install [npm](https://www.npmjs.com/)
-- Install [nodejs](https://nodejs.org/en/)
-
-Ubuntu:
-
-```bash
- sudo apt-get install golang npm curl git zip unzip
- sudo npm install --global n @angular/cli   # Angular Command Line Interface
- # Install LTS version of nodejs
- sudo n lts
-```
-
-openSUSE:
-
-```bash
- sudo zypper install go npm git curl zip unzip
- sudo npm install --global n @angular/cli   # Angular Command Line Interface
- # Install LTS version of nodejs
- sudo n lts
-```
-
-Don't forget to open new user session after installing the packages.
+Install [Go](https://golang.org/doc/install), [npm](https://www.npmjs.com/),
+[nodejs](https://nodejs.org/en/) and some other tools.
+Refer to [Prerequisites chapter](./0_Abstract.html#prerequisites) for more details.
 
 ### Building
 
@@ -434,12 +414,16 @@ Create a GOPATH variable(must be a full path):
 ```bash
  export GOPATH=$(realpath ~/workspace_go)
 ```
+SEB Rework GOPATH inscrutions
+
 
 Clone this repo into your `$GOPATH/src/gerrit.automotivelinux.org/gerrit/src/xds` and use delivered Makefile:
 
 ```bash
- mkdir -p $GOPATH/src/gerrit.automotivelinux.org/gerrit/src/xds
- cd $GOPATH/src/gerrit.automotivelinux.org/gerrit/src/xds
+export GOPATH=${GOPATH}:${ROOTDIR}
+
+ mkdir -p $ROOTDIR/src/gerrit.automotivelinux.org/gerrit/src/xds
+ cd $ROOTDIR/src/gerrit.automotivelinux.org/gerrit/src/xds
  git clone https://gerrit.automotivelinux.org/gerrit/src/xds/xds-server
  # or git clone ssh://YOUR_USERNAME@gerrit.automotivelinux.org:29418/src/xds/xds-server
  cd xds-server
diff --git a/docs/part-2/2_xds-agent.md b/docs/part-2/2_xds-agent.md
index 7d08a16..ce03ae7 100644
--- a/docs/part-2/2_xds-agent.md
+++ b/docs/part-2/2_xds-agent.md
@@ -71,32 +71,9 @@ You can now use XDS dashboard and check that connection with `xds-agent` is up.
 
 ### Dependencies
 
-Install and setup [Go](https://golang.org/doc/install) version 1.8.1 or higher to compile this tool.
-
->**Note:** for Ubuntu, you can use a PPA, see [https://github.com/golang/go/wiki/Ubuntu](https://github.com/golang/go/wiki/Ubuntu)
-
-Install [npm](https://www.npmjs.com/), [nodejs](https://nodejs.org/en/) and
-some other tools
-
-Ubuntu:
-
-```bash
- sudo apt-get install golang npm curl git zip unzip
- sudo npm install --global n @angular/cli   # Angular Command Line Interface
- # Install LTS version of nodejs
- sudo n lts
-```
-
-openSUSE:
-
-```bash
- sudo zypper install go npm git curl zip unzip
- sudo npm install --global n @angular/cli   # Angular Command Line Interface
- # Install LTS version of nodejs
- sudo n lts
-```
-
-Don't forget to open new user session after installing the packages.
+Install [Go](https://golang.org/doc/install), [npm](https://www.npmjs.com/),
+[nodejs](https://nodejs.org/en/) and some other tools.
+Refer to [Prerequisites chapter](./0_Abstract.html#prerequisites) for more details.
 
 ### Building
 
diff --git a/docs/part-2/3_xds-cli.md b/docs/part-2/3_xds-cli.md
index 3820b22..a4ccca5 100644
--- a/docs/part-2/3_xds-cli.md
+++ b/docs/part-2/3_xds-cli.md
@@ -165,10 +165,10 @@ xds-cli misc sts
 
 ## How to build
 
-### Prerequisites
+### Dependencies
 
- You must install and setup [Go](https://golang.org/doc/install) version 1.8.1 or
- higher to compile this tool.
+Install [Go](https://golang.org/doc/install) and some other tools.
+Refer to [Prerequisites chapter](./0_Abstract.html#prerequisites) for more details.
 
 ### Building
 
diff --git a/docs/part-2/4_xds-gdb.md b/docs/part-2/4_xds-gdb.md
index 8bb47aa..6185ce9 100644
--- a/docs/part-2/4_xds-gdb.md
+++ b/docs/part-2/4_xds-gdb.md
@@ -94,10 +94,10 @@ Example of gdb init file where we define project and sdk ID:
 
 ## How to build xds-gdb from scratch
 
-### Prerequisites
+### Dependencies
 
- You must install and setup [Go](https://golang.org/doc/install) version 1.8.1 or
- higher to compile this tool.
+Install [Go](https://golang.org/doc/install) and some other tools.
+Refer to [Prerequisites chapter](./0_Abstract.html#prerequisites) for more details.
 
 ### Building