#! /bin/sh
#
-# Update a local Subversion tree from the GCC repository, with an emphasis
-# on treating generated files correctly, so that autoconf, gperf et
-# al are not required for the ``end'' user.
+# Update a local Subversion, Git or Mercurial tree from the GCC
+# repository, with an emphasis on treating generated files correctly, so
+# that autoconf, gperf et al are not required for the ``end'' user.
#
-# (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
+# (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010
+# Free Software Foundation
# Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
#
# This script is Free Software, and it can be copied, distributed and
# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
#
#
-# By default all command-line options are passed to `svn update` in
-# addition to $UPDATE_OPTIONS (defined below). If the first parameter
+# By default all command-line options are passed to `svn update` or `hg/git
+# pull` in addition to $UPDATE_OPTIONS (defined below). If the first parameter
# reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
# are omitted.
#
# contrib/gcc_update --list
-# SVN command
-GCC_SVN=${GCC_SVN-${SVN-svn}}
-# Default options used when updating via SVN (none).
+# Default options used when updating (none).
UPDATE_OPTIONS=""
# Set the locale to C to make this script work for users with foreign
esac
-is_git=0
-# Check whether this indeed looks like a local SVN tree.
+# Check for known version control systems.
if [ -d .git ]; then
GCC_GIT=${GCC_GIT-${GIT-git}}
- GCC_SVN="true -"
- is_git=1
-elif [ ! -d .svn ]; then
- echo "This does not seem to be a GCC SVN tree!"
+ vcs_type="git"
+elif [ -d .hg ]; then
+ GCC_HG=${GCC_HG-${HG-hg}}
+ vcs_type="hg"
+elif [ -d .svn ]; then
+ GCC_SVN=${GCC_SVN-${SVN-svn}}
+ vcs_type="svn"
+else
+ echo "This does not seem to be a GCC GIT/HG/SVN tree!"
exit
fi
set -- $UPDATE_OPTIONS ${1+"$@"}
fi
-if [ $is_git -eq 0 ]; then
-chat "Updating SVN tree"
+case $vcs_type in
+ git)
+ chat "Updating GIT tree"
-$GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"}
-if [ $? -ne 0 ]; then
- (touch_files_reexec)
- echo "SVN update of full tree failed." >&2
- exit 1
-fi
+ $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
-rm -f LAST_UPDATED gcc/REVISION
+ $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
-revision=`svn info | awk '/Revision:/ { print $2 }'`
-branch=`svn info | sed -ne "/URL:/ {
-s,.*/trunk,trunk,
-s,.*/branches/,,
-s,.*/tags/,,
-p
-}"`
+ revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H`
+ branch=`$GCC_GIT name-rev --name-only HEAD || :`
+ ;;
+
+ hg)
+ chat "Updating HG tree"
+
+ # Add -q so untracked files aren't listed.
+ if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then
+ echo "Attempting to update a dirty hg tree!" >&2
+ echo "Commit or revert your changes first and retry." >&2
+ exit 1
+ fi
+
+ # Check for mq extension. mq patches must be popped so tip has
+ # been converted from the SVN tree.
+ if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then
+ # FIXME: Perhaps pop queue instead? We could do that since we
+ # know the tree is clean.
+ echo "Attempting to update hg tree with mq patches applied!" >&2
+ echo "Pop your patches first and retry." >&2
+ exit 1
+ fi
+
+ # Update tree, but make sure to only pull the default branch.
+ # Otherwise all branches in the upstream repo are added, even if
+ # only a single one has been cloned.
+ $GCC_HG pull -u ${silent+-q} -r`$GCC_HG branch` ${1+"$@"}
+ if [ $? -ne 0 ]; then
+ (touch_files_reexec)
+ echo "hg pull of full tree failed." >&2
+ exit 1
+ fi
+
+ # Extract SVN revision corresponding to tip, as stored by hg convert.
+ # Before hg 1.4.3, there's no template keyword corresponding to the
+ # extra: tag, so need to use hg log --debug to extract the info.
+ revision=`$GCC_HG log --debug -l1 | \
+ sed -ne "/^extra:.*convert_revision=svn:/ {
+ s%^.*@%%
+ p
+ }"`
+ branch=`$GCC_HG branch`
+ # trunk in SVN parlance shows up as default branch in hg.
+ [ x$branch = x"default" ] && branch="trunk"
+ ;;
+
+ svn)
+ chat "Updating SVN tree"
+
+ $GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"}
+ if [ $? -ne 0 ]; then
+ (touch_files_reexec)
+ echo "SVN update of full tree failed." >&2
+ exit 1
+ fi
+
+ revision=`svn info | awk '/Revision:/ { print $2 }'`
+ branch=`svn info | sed -ne "/URL:/ {
+ s,.*/trunk,trunk,
+ s,.*/branches/,,
+ s,.*/tags/,,
+ p
+ }"`
+ ;;
+esac
+
+rm -f LAST_UPDATED gcc/REVISION
{
- date
- echo "`TZ=UTC date` (revision $revision)"
+ date
+ echo "`TZ=UTC date` (revision $revision)"
} > LAST_UPDATED
-
echo "[$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
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