From cbb7f52e28d2e1c20c8eac662aa6135242d072e8 Mon Sep 17 00:00:00 2001
From: Maxim Uvarov <maxim.uvarov@linaro.org>
Date: Tue, 19 Sep 2017 23:23:23 +0300
Subject: travis: cache doxygen

Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Reviewed-by: Bill Fischofer <bill.fischofer@linaro.org>
Reviewed-by: Dmitry Eremin-Solenikov <dmitry.ereminsolenikov@linaro.org>
---
 .travis.yml | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 21fa9e3ba..a9ae219dc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -60,6 +60,7 @@ cache:
                 - dpdk
                 - netmap
                 - $HOME/cunit-install
+                - $HOME/doxygen-install
 
 env:
         - CONF=""
@@ -237,13 +238,17 @@ jobs:
                   install:
                           - true
                   script:
-                          - wget https://github.com/doxygen/doxygen/archive/Release_1_8_13.tar.gz
-                          - tar xpvf Release_1_8_13.tar.gz
-                          - pushd doxygen-Release_1_8_13
-                          - cmake -DCMAKE_INSTALL_PREFIX=/usr .
-                          - sudo make install
-                          - popd
+                          - |
+                            if [ ! -f "$HOME/doxygen-install/bin/doxygen" ]; then
+                              wget https://github.com/doxygen/doxygen/archive/Release_1_8_13.tar.gz
+                              tar xpvf Release_1_8_13.tar.gz
+                              pushd doxygen-Release_1_8_13
+                              cmake -DCMAKE_INSTALL_PREFIX=$HOME/doxygen-install .
+                              make install
+                              popd
+                            fi
 
+                          - export PATH=$HOME/doxygen-install/bin:$PATH
                           # doxygen does not trap on warnings, check for them here.
                           - ./bootstrap
                           - ./configure
-- 
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