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#!/bin/bash
#
# This script is used to sync the upstream gcc repository, plus a series of
# other related toolchain repositories.
#
# It is highly dependant on the git setup Linaro has on its server. Setup that
# is done with gitolite and gitweb.
#
# How the mirrorin has been done:
# - mirrorin happens in /srv/mirror on the server
# - depending on the mirror type, we can create a git-svn clone in a separate
# directory, add a new remote on the "original" repo, and then make sure
# everything is pushed to the real bare repo.
#
# For more info: https://wiki.linaro.org/Platform/Systems/ToolchainsMirror
#
umask 0022 # cron runs us with 0002
GIT_BIN=`which git`
GITOLITE_BIN="/home/git/bin/gitolite"
REPOSITORIES_DIR="/srv/repositories"
TOOLCHAIN_DIR="$REPOSITORIES_DIR/toolchain"
GCC_REPO="$TOOLCHAIN_DIR/gcc.git"
BINUTILS_GDB_REPO="$TOOLCHAIN_DIR/binutils-gdb.git"
MIRROR_DIR="/srv/mirror"
GCC_MIRROR_DIR="$MIRROR_DIR/gcc.git/"
BZR_BRANCH="bzr/linaro-4.7-branch"
UPSTREAM_48_BRANCH="4.8-branch"
UPSTREAM_47_BRANCH="4.7-branch"
SVN_UPSTREAM_48_BRANCH="$MIRROR_DIR/linaro-gcc-4_8-branch"
SVN_UPSTREAM_47_BRANCH="$MIRROR_DIR/gcc-4_7-branch"
SVN_UPSTREAM_49_BRANCH="$MIRROR_DIR/linaro-gcc-4_9-branch"
LINARO_UPSTREAM_48_BRANCH="linaro-4.8-branch"
LINARO_UPSTREAM_49_BRANCH="linaro-4.9-branch"
NEW_GCC_MIRROR_DIR="$MIRROR_DIR/gcc"
NEW_GCC_TOOLCHAIN_DIR="$NEW_GCC_MIRROR_DIR/toolchain"
NEW_GCC_LOCAL_MIRROR="$NEW_GCC_TOOLCHAIN_DIR/gcc.git"
NEW_GCC_MIRROR_FETCH_DIR="$NEW_GCC_MIRROR_DIR/fetch"
NEW_GCC_BRANCHES_DIR="$NEW_GCC_MIRROR_FETCH_DIR/branches"
NEW_GCC_SVN_BRANCHES_DIR="$NEW_GCC_BRANCHES_DIR/svn"
NEW_GCC_UPSTREAM_DIR="$NEW_GCC_MIRROR_FETCH_DIR/gcc.git"
function errcho() {
# Print on stderr passed messages.
>&2 echo $1
}
function logiferr() {
LOG=$($1 2>&1)
STATUS=$?
if [ ${STATUS} != 0 ]
then
errcho "CMD: '$1' exited with status ${STATUS}"
if [ "${LOG}" != "" ]
then
errcho "WITH LOG OUTPUT: ${LOG}"
fi
fi
return ${STATUS}
}
# Retry command which tends to have transient failures
function stubborn_do() {
for i in 5 15 60 180 180; do
LOG=$("$@" 2>&1)
STATUS=$?
if [ $STATUS -eq 0 ]; then
return 0
fi
sleep $i
done
errcho "CMD: '$@' exited with status $STATUS"
errcho "WITH LOG OUTPUT: '$LOG'"
errcho "Last retry delay: ${i}s"
return $STATUS
}
function new2_gcc() {
if [ ! -d $MIRROR_DIR/gcc-upstream-pristine.git ]; then
git clone --mirror git://gcc.gnu.org/git/gcc.git $MIRROR_DIR/gcc-upstream-pristine.git
fi
QUIET="${QUIET---quiet}"
cd $MIRROR_DIR/gcc-upstream-pristine.git
stubborn_do git fetch $QUIET
# Set up gitolite environment for local push
export GL_BYPASS_ACCESS_CHECKS=1
export GL_LIBDIR=~/gitolite/src/lib
git push $QUIET --force /srv/repositories/toolchain/gcc.git 'refs/heads/*' 'refs/tags/*' 2>&1 | grep -v "remote: Sending notification emails to"
}
function new_gcc() {
new_gcc_update_upstream_mirror
new_gcc_update_local_mirror
new_gcc_update_svn_branches
if [ $? -eq 0 ]; then
cd $NEW_GCC_LOCAL_MIRROR
# It's a mirror we are pushing, so no --all/--tag.
logiferr "$GITOLITE_BIN push"
if [ $? -ne 0 ]; then
errcho "Error pushing to final destination"
fi
fi
}
function new_gcc_update_svn_branches() {
# SVN branches need to be created manually.
# Once cloned, the git-svn repo must have as the remote push origin the
# path defined in $NEW_GCC_UPSTREAM_DIR
if [ ! -d $NEW_GCC_SVN_BRANCHES_DIR ]; then
return 0
fi
for git_svn_repo in `find $NEW_GCC_SVN_BRANCHES_DIR -type d -name ".git" -prune -exec dirname {} \;`; do
cd $git_svn_repo
branch_name=`basename $git_svn_repo`
logiferr "$GIT_BIN svn rebase"
if [ $? -ne 0 ]; then
errcho "Error updating gcc svn branch $branch_name"
return 1
fi
logiferr "$GIT_BIN push origin master:$branch_name"
if [ $? -ne 0 ]; then
errcho "Error pushing gcc svn branch $branch_name"
return 1
fi
done
return 0
}
function new_gcc_update_upstream_mirror() {
if [ ! -d $NEW_GCC_UPSTREAM_DIR ]; then
errcho "Missing upstream gcc mirror, cloning it..."
mkdir -p $NEW_GCC_MIRROR_FETCH_DIR
cd $NEW_GCC_MIRROR_FETCH_DIR
logiferr "$GIT_BIN clone -q --mirror git://gcc.gnu.org/git/gcc.git"
if [ $? -ne 0 ]; then
errcho "Error creating gcc upstream mirror (fetch)"
return 1
fi
fi
cd $NEW_GCC_UPSTREAM_DIR
logiferr "$GIT_BIN remote update"
if [ $? -ne 0 ]; then
errcho "Error updating gcc upstream mirror (fetch)"
return 1
fi
return 0
}
function new_gcc_update_local_mirror() {
if [ ! -d $NEW_GCC_LOCAL_MIRROR ]; then
errcho "Missing local gcc mirror, cloning it..."
mkdir -p $NEW_GCC_TOOLCHAIN_DIR
cd $NEW_GCC_TOOLCHAIN_DIR
logiferr "$GIT_BIN clone --mirror $NEW_GCC_UPSTREAM_DIR"
if [ $? -ne 0 ]; then
errcho "Error cloning gcc upstream mirror (local)"
return 1
fi
cd $NEW_GCC_LOCAL_MIRROR
logiferr "$GIT_BIN remote set-url --push origin $TOOLCHAIN_DIR/gcc-new.git"
if [ $? -ne 0 ]; then
errcho "Error setting correct remote (local)"
return 1
fi
fi
cd $NEW_GCC_LOCAL_MIRROR
logiferr "$GIT_BIN remote update"
if [ $? -ne 0 ]; then
errcho "Error updating gcc upstream mirror (local)"
return 1
fi
return 0
}
function push_changes() {
cd $GCC_MIRROR_DIR
# gitolite, not git, this is important since the push has to happen on the
# local filesystem and the repository is controlled by gitolite.
logiferr "$GITOLITE_BIN push --all"
logiferr "$GITOLITE_BIN push --tags"
}
function update_server_info() {
logiferr "git --git-dir=$GCC_REPO update-server-info"
}
function update_bzr_branch() {
cd $GCC_MIRROR_DIR
logiferr "git bzr sync $BZR_BRANCH"
push_changes
update_server_info
}
function update_upstream_48_branch() {
cd $GCC_MIRROR_DIR
logiferr "git checkout $UPSTREAM_48_BRANCH"
logiferr "git pull --rebase"
logiferr "git checkout master"
}
function update_linaro_upstream_48_branch() {
cd $GCC_MIRROR_DIR
logiferr "git checkout $LINARO_UPSTREAM_48_BRANCH"
logiferr "git pull --rebase"
logiferr "git checkout master"
}
function update_linaro_upstream_49_branch() {
cd $GCC_MIRROR_DIR
logiferr "git checkout $LINARO_UPSTREAM_49_BRANCH"
logiferr "git pull --rebase"
logiferr "git checkout master"
}
function update_svn_upstream_48_branch() {
cd $SVN_UPSTREAM_48_BRANCH
logiferr "git svn rebase"
}
function update_svn_upstream_47_branch() {
cd $SVN_UPSTREAM_47_BRANCH
logiferr "git svn rebase"
}
function update_svn_upstream_49_branch() {
cd $SVN_UPSTREAM_49_BRANCH
logiferr "git svn rebase"
}
function update_upstream_47_branch() {
cd $GCC_MIRROR_DIR
logiferr "git checkout $UPSTREAM_47_BRANCH"
logiferr "git pull --rebase"
logiferr "git checkout master"
}
function update_gcc_repo_remote() {
cd $GCC_MIRROR_DIR
logiferr "git remote update"
logiferr "git pull --all"
}
function update_newlib_mirror() {
cd $TOOLCHAIN_DIR/newlib.git
stubborn_do git remote update
}
function update_glibc_mirror() {
cd $TOOLCHAIN_DIR/glibc.git
stubborn_do git remote update
}
function pull_git_changes() {
update_svn_upstream_47_branch
update_svn_upstream_48_branch
update_svn_upstream_49_branch
update_gcc_repo_remote
update_upstream_47_branch
update_upstream_48_branch
update_linaro_upstream_48_branch
update_linaro_upstream_49_branch
push_changes
update_server_info
}
function update_binutils_gdb() {
cd $BINUTILS_GDB_REPO
stubborn_do git remote update
logiferr "git update-server-info"
}
function update_dejagnu_mirror() {
cd "$MIRROR_DIR/dejagnu.git"
stubborn_do git remote update
if [ $? == 0 ]
then
logiferr "$GITOLITE_BIN push"
fi
}
function all() {
update_bzr_branch
pull_git_changes
update_binutils_gdb
}
$@
all_repos="gcc.git gcc-new-deprecated-201505.git glibc.git dejagnu.git newlib.git binutils-gdb.git"
cd /srv/repositories
for repo in $all_repos ; do
logiferr "/usr/local/bin/grok-manifest -m /var/www/git.linaro.org/manifest.js.gz -t /srv/repositories/ -v -n toolchain/$repo"
done
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