From 7bf40a2d0e0b6f25d1001d853dbbfb1e7fcd4aef Mon Sep 17 00:00:00 2001
From: Neal Richardson <neal.p.richardson@gmail.com>
Date: Fri, 14 Jun 2019 08:45:26 -0700
Subject: [PATCH 1/4] Add brew install apache-arrow --HEAD test job on Travis

---
 .travis.yml | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 36a2dccf666..bffee3e193f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -382,6 +382,17 @@ matrix:
           sudo apt-get update -qq
         fi
     - pushd ${TRAVIS_BUILD_DIR}/r
+  - name: R + Homebrew --HEAD
+    language: r
+    cache: packages
+    latex: false
+    os: osx
+    before_install:
+    # Have to copy-paste this here because of how R's build steps work
+    - eval `python $TRAVIS_BUILD_DIR/ci/detect-changes.py`
+    - if [ $ARROW_CI_R_AFFECTED != "1" ]; then exit; fi
+    - pushd ${TRAVIS_BUILD_DIR}/r
+    - brew install apache-arrow --HEAD
 
 after_failure:
 - |

From d054f97ec82b181ad4095c71943480f5019e3db6 Mon Sep 17 00:00:00 2001
From: Neal Richardson <neal.p.richardson@gmail.com>
Date: Fri, 14 Jun 2019 09:50:07 -0700
Subject: [PATCH 2/4] Upgrade xcode

---
 .travis.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index bffee3e193f..d9295e3bb3a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -387,6 +387,8 @@ matrix:
     cache: packages
     latex: false
     os: osx
+    # This fails on xcode9.4
+    osx_image: xcode10.2
     before_install:
     # Have to copy-paste this here because of how R's build steps work
     - eval `python $TRAVIS_BUILD_DIR/ci/detect-changes.py`

From 2b0826ba45e44979167174a483c64b41b67f13b9 Mon Sep 17 00:00:00 2001
From: Neal Richardson <neal.p.richardson@gmail.com>
Date: Fri, 14 Jun 2019 10:04:30 -0700
Subject: [PATCH 3/4] Remove xcode version comment (fails on this version too)

---
 .travis.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index d9295e3bb3a..d108dee4ae9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -387,7 +387,6 @@ matrix:
     cache: packages
     latex: false
     os: osx
-    # This fails on xcode9.4
     osx_image: xcode10.2
     before_install:
     # Have to copy-paste this here because of how R's build steps work

From b18251c7a087ff6061111dae29f13e1de97452ee Mon Sep 17 00:00:00 2001
From: Neal Richardson <neal.p.richardson@gmail.com>
Date: Fri, 14 Jun 2019 11:06:03 -0700
Subject: [PATCH 4/4] Make this use r-devel to test a different version of R

---
 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index d108dee4ae9..4405e0a1b64 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -382,8 +382,9 @@ matrix:
           sudo apt-get update -qq
         fi
     - pushd ${TRAVIS_BUILD_DIR}/r
-  - name: R + Homebrew --HEAD
+  - name: R-devel + Homebrew --HEAD
     language: r
+    r: devel
     cache: packages
     latex: false
     os: osx