From efc08d33907472f5c4bc2f6318400963bab994bc Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.com>
Date: Sat, 24 Feb 2018 01:57:42 +0100
Subject: btrfs-progs: ci: cache built dependencies

For a slight speed up of the build, cache reiserfs and zstd. A quick
cache validity is done, or it can be cleared manually on travis web UI.

Signed-off-by: David Sterba <dsterba@suse.com>
---
 .travis.yml               |  3 +++
 travis/build-dep-reiserfs | 18 ++++++++++++++++--
 travis/build-dep-zstd     | 18 ++++++++++++++++--
 3 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 5f14a25d..8883b3d5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,6 +25,9 @@ compiler:
 
 cache:
   ccache: true
+  directories:
+    - tmp-cached-reiser
+    - tmp-cached-zstd
 
 git:
   depth: 1
diff --git a/travis/build-dep-reiserfs b/travis/build-dep-reiserfs
index b32b8058..72308ef2 100755
--- a/travis/build-dep-reiserfs
+++ b/travis/build-dep-reiserfs
@@ -2,14 +2,28 @@
 # download, build and install reiserfs library
 
 version=3.6.27
+dir=tmp-cached-reiser
+stamp="$dir/.last-build-reiser"
+here=`pwd`
 
 set -e
 
-mkdir tmp-reiser
-cd tmp-reiser
+if [ -d "$dir" -a -f "$stamp" ]; then
+	echo "Using valid cache for $dir, built" `cat "$stamp"`
+	cd "$dir"
+	cd reiserfsprogs-${version}
+	sudo make install
+	exit 0
+fi
+
+echo "No or stale cache for $dir, rebuilding"
+rm -rf "$dir"
+mkdir "$dir"
+cd "$dir"
 wget https://www.kernel.org/pub/linux/kernel/people/jeffm/reiserfsprogs/v${version}/reiserfsprogs-${version}.tar.xz
 tar xf reiserfsprogs-${version}.tar.xz
 cd reiserfsprogs-${version}
 ./configure --prefix=/usr
 make all
 sudo make install
+date > "$here/$stamp"
diff --git a/travis/build-dep-zstd b/travis/build-dep-zstd
index 22369dd3..eae0be63 100755
--- a/travis/build-dep-zstd
+++ b/travis/build-dep-zstd
@@ -2,13 +2,27 @@
 # download, build and install the zstd library
 
 version=1.3.3
+dir=tmp-cached-zstd
+stamp="$dir/.last-build-zstd"
+here=`pwd`
 
 set -e
 
-mkdir tmp-zstd
-cd tmp-zstd
+if [ -d "$dir" -a -f "$stamp" ]; then
+	echo "Using valid cache for $dir, built" `cat "$stamp"`
+	cd "$dir"
+	cd zstd-${version}
+	sudo make install PREFIX=/usr
+	exit 0
+fi
+
+echo "No or stale cache for $dir, rebuilding"
+rm -rf "$dir"
+mkdir "$dir"
+cd "$dir"
 wget https://github.com/facebook/zstd/archive/v${version}.tar.gz
 tar xf v${version}.tar.gz
 cd zstd-${version}
 make
 sudo make install PREFIX=/usr
+date > "$here/$stamp"
-- 
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