[oe-layersetup][master][PATCH] Add git_retry.sh wrapper around git

["Ryan Eatmon" <reatmon@ti.com>]

We are seeing a sporadic failure in our nightly builds
due to the git clone/fetch calls timing out and erroring.
These events are usually resolved by just trying the git
call again, but in a scripted flow it causes a failure
in that run.  The git_retry.sh script solves that by
allowing the git command to be retried a few times while
sleeping in between.

Signed-off-by: Ryan Eatmon <reatmon@ti.com>
---
 git_retry.sh          | 29 +++++++++++++++++++++++++++++
 oe-layertool-setup.sh |  4 ++--
 2 files changed, 31 insertions(+), 2 deletions(-)
 create mode 100755 git_retry.sh

diff --git a/git_retry.sh b/git_retry.sh
new file mode 100755
index 0000000..e5ed5bb
--- /dev/null
+++ b/git_retry.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+let glRetries=5
+let glDelay=15
+let glExitCode=0
+
+while [ $glRetries -gt 0 ]; do
+
+    git "$@"
+
+    glExitCode=$?
+
+    if [ $glExitCode -eq 0 ]; then
+        exit
+    fi
+
+    let glRetries=$glRetries-1
+
+    if [ $glRetries -gt 0 ]; then
+        echo "git failed... remaining attempts: $glRetries"
+        sleep $glDelay
+    fi
+
+done
+
+echo "git failed... giving up..."
+
+exit $glExitCode
+
diff --git a/oe-layertool-setup.sh b/oe-layertool-setup.sh
index df1523f..932ec49 100755
--- a/oe-layertool-setup.sh
+++ b/oe-layertool-setup.sh
@@ -336,9 +336,9 @@ clone_repo() {
     if [ -d $sourcedir/$name ]
     then
         cd $sourcedir/$name
-        git fetch --all
+        $oebase/git_retry.sh fetch --all
     else
-        git clone $uri $sourcedir/$name
+        $oebase/git_retry.sh clone $uri $sourcedir/$name
         if [ "$?" != "0" ]
         then
             echo "ERROR: Could not clone repository at $uri"
-- 
2.17.1