[Xen-changelog] [xen-unstable] Introduce git-checkout.sh

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User <stefano.stabellini@xxxxxxxxxxxxx>
# Date 1327417769 0
# Node ID 0bc51b1f2d74750888b70984fec7b7289d74bea0
# Parent  0f8f633dbe2d182d448214fefb4e2e3afaa75e7e
Introduce git-checkout.sh

From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

Introduce a script to perform git checkout on an external git tree; use
git-checkout.sh in ioemu-dir-find.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
---


diff -r 0f8f633dbe2d -r 0bc51b1f2d74 .hgignore
--- a/.hgignore Tue Jan 24 14:21:12 2012 +0000
+++ b/.hgignore Tue Jan 24 15:09:29 2012 +0000
@@ -296,7 +296,7 @@
 ^tools/xm-test/lib/XmTestLib/config.py$
 ^tools/xm-test/lib/XmTestReport/xmtest.py$
 ^tools/xm-test/tests/.*\.test$
-^tools/ioemu-remote
+^tools/ioemu-dir-remote
 ^tools/ioemu-dir$
 ^tools/ocaml/.*/.*\.annot$
 ^tools/ocaml/.*/.*\.cmx?a$
diff -r 0f8f633dbe2d -r 0bc51b1f2d74 scripts/git-checkout.sh
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/git-checkout.sh   Tue Jan 24 15:09:29 2012 +0000
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+if test $# -lt 3; then
+       echo "Usage: $0 <tree> <tag> <dir>"
+       exit 1
+fi
+
+TREE=$1
+TAG=$2
+DIR=$3
+
+set -e
+
+if test \! -d $DIR-remote; then
+       rm -rf $DIR-remote $DIR-remote.tmp
+       mkdir $DIR-remote.tmp; rmdir $DIR-remote.tmp
+       $GIT clone $TREE $DIR-remote.tmp
+       if test "$TAG" ; then
+               cd $DIR-remote.tmp
+               $GIT branch -D dummy >/dev/null 2>&1 ||:
+               $GIT checkout -b dummy $TAG
+               cd ..
+       fi
+       mv $DIR-remote.tmp $DIR-remote
+fi
+rm -f $DIR
+ln -sf $DIR-remote $DIR
diff -r 0f8f633dbe2d -r 0bc51b1f2d74 tools/Makefile
--- a/tools/Makefile    Tue Jan 24 14:21:12 2012 +0000
+++ b/tools/Makefile    Tue Jan 24 15:09:29 2012 +0000
@@ -75,7 +75,7 @@
 
 .PHONY: distclean
 distclean: subdirs-distclean
-       rm -rf ioemu-dir ioemu-remote
+       rm -rf ioemu-dir ioemu-dir-remote
 
 ifneq ($(XEN_COMPILE_ARCH),$(XEN_TARGET_ARCH))
 IOEMU_CONFIGURE_CROSS ?= --cpu=$(XEN_TARGET_ARCH) \
@@ -93,20 +93,8 @@
        if test -d $(CONFIG_QEMU); then \
                mkdir -p ioemu-dir; \
        else \
-               if [ ! -d ioemu-remote ]; then \
-                       rm -rf ioemu-remote ioemu-remote.tmp; \
-                       mkdir ioemu-remote.tmp; rmdir ioemu-remote.tmp; \
-                       $(GIT) clone $(CONFIG_QEMU) ioemu-remote.tmp; \
-                       if [ "$(QEMU_TAG)" ]; then                      \
-                               cd ioemu-remote.tmp;                    \
-                               $(GIT) branch -D dummy >/dev/null 2>&1 ||:; \
-                               $(GIT) checkout -b dummy $(QEMU_TAG);   \
-                               cd ..;                                  \
-                       fi;                                             \
-                       mv ioemu-remote.tmp ioemu-remote; \
-               fi; \
-               rm -f ioemu-dir; \
-               ln -sf ioemu-remote ioemu-dir; \
+               export GIT=$(GIT); \
+               $(XEN_ROOT)/scripts/git-checkout.sh $(CONFIG_QEMU) $(QEMU_TAG) 
ioemu-dir; \
        fi
        set -e; \
                $(buildmakevars2shellvars); \
@@ -117,7 +105,7 @@
 ioemu-dir-force-update:
        set -ex; \
        if [ "$(QEMU_TAG)" ]; then \
-               cd ioemu-remote; \
+               cd ioemu-dir-remote; \
                $(GIT) fetch origin; \
                $(GIT) reset --hard $(QEMU_TAG); \
        fi

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