From patchwork Tue Jun 15 08:42:41 2010
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Subject: committed: [Re: [PATCH] gcc_update: support updating a git clone]
Date: Mon, 14 Jun 2010 22:42:41 -0000
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
X-Patchwork-Id: 55618
Message-Id: <20100615084241.GA24914@mx.loc>
To: gcc-patches@gcc.gnu.org
Cc: Paolo Bonzini <bonzini@gnu.org>, Tobias Burnus <burnus@net-b.de>

On Tue, May 18, 2010 at 11:11:32PM +0200, Bernhard Reutner-Fischer wrote:
>On Sat, Mar 13, 2010 at 11:54:35AM +0100, Bernhard Reutner-Fischer wrote:
>>contrib/ChangeLog:
>>
>>2010-03-13  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
>>
>>	* gcc_update: Support updating a git clone.
>>
>>Ok for trunk?
>
>Revised patch attached, Changelog remains the same.
>Ok for trunk?

Incorporated Paolo's comments in
http://gcc.gnu.org/ml/gcc-patches/2010-06/msg00143.html
and committed the attached as revision 160774.

thanks,


Index: contrib/gcc_update
===================================================================
--- contrib/gcc_update	(revision 160773)
+++ contrib/gcc_update	(working copy)
@@ -245,8 +245,13 @@
 
 esac
 
+is_git=0
 # Check whether this indeed looks like a local SVN tree.
-if [ ! -d .svn ]; then
+if [ -d .git ]; then
+    GCC_GIT=${GCC_GIT-${GIT-git}}
+    GCC_SVN="true -"
+    is_git=1
+elif [ ! -d .svn ]; then
     echo "This does not seem to be a GCC SVN tree!"
     exit
 fi
@@ -258,6 +263,7 @@
     set -- $UPDATE_OPTIONS ${1+"$@"}
 fi
 
+if [ $is_git -eq 0 ]; then
 chat "Updating SVN tree"
 
 $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
@@ -283,4 +289,27 @@
 
 echo "[$branch revision $revision]" > gcc/REVISION
 
+else
+    chat "Updating GIT tree"
+    $GCC_GIT diff --quiet --exit-code HEAD
+    if [ $? -ne 0 ]; then
+        echo "Attempting to update a dirty git tree!" >&2
+        echo "Commit or stash your changes first and retry." >&2
+        exit 1
+    fi
+    $GCC_GIT pull ${silent+-q} --rebase ${1+"$@"}
+    if [ $? -ne 0 ]; then
+        (touch_files_reexec)
+        echo "git pull of full tree failed." >&2
+        exit 1
+    fi
+    rm -f LAST_UPDATED gcc/REVISION
+    revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H`
+    branch=`$GCC_GIT name-rev --name-only HEAD || :`
+    {
+      date
+      echo "`TZ=UTC date` (revision $revision)"
+    } > LAST_UPDATED
+    echo "[$branch revision $revision]" > gcc/REVISION
+fi
 touch_files_reexec