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#!/usr/bin/env bash
# The common script is only meant to be included from other LLVM helper scripts
# Verify the compulsory environment variables - these must be set for all the
# helper scripts.
if [[ $LLVM_ROOT = '' ]]; then
echo "Please, define \$LLVM_ROOT to point to the root"
echo "path where the worktree setup should be performed"
exit -1
fi
if [[ $LLVM_GITRW = '' ]]; then
echo "Please, define \$LLVM_GITRW to yes if you"
echo "want to set up Git-SVN and no otherwise"
exit -1
fi
if [[ $LLVM_GITRW = "yes" ]] && [[ $LLVM_GITUSER = '' ]]; then
echo "Please, define \$LLVM_GITUSER to access Linaro's Git server"
exit 1
fi
if [[ $LLVM_GITRW = 'yes' ]] && [[ $LLVM_SVNUSER = '' ]]; then
echo "Please, define \$LLVM_SVNUSER when using GITRW=yes"
echo "SVNUSER is your upstream LLVM commit user"
exit 1
fi
# Verify the environment variables that should be set by llvm-env
verify_env() {
if [[ $LLVM_SRC = '' ]]; then
echo "Please, define \$LLVM_SRC to point to the current LLVM"
echo "worktree directory, or run llvm-env to set it for you"
exit -1
fi
if [[ $LLVM_BLD = '' ]]; then
echo "Please, define \$LLVM_BLD to point to the current LLVM"
echo "build directory, or run llvm-env to set it for you"
exit -1
fi
}
has() {
if [[ $1 = '' || $2 = '' ]]; then
echo no
return
fi
local item=$1
shift
for each in $*; do
if [[ $item = $each ]]; then
echo yes
return
fi
done
echo no
}
get_branch() {
branch=`git rev-parse --abbrev-ref HEAD`
if [[ $? != 0 ]]; then
local dir=`pwd`
echo "Source dir '$dir' is not in a git repository" 1>&2
exit -1
fi
echo $branch
}
get_branches() {
branches=`git for-each-ref --sort=-committerdate refs/heads/ --format='%(refname:short)'`
if [[ $? != 0 ]]; then
local dir=`pwd`
echo "Source dir '$dir' is not in a git repository" 1>&2
exit -1
fi
echo $branches
}
has_branch() {
branch=$1
branches=`get_branches`
result=`has $branch $branches`
echo $result
}
safe_run() {
"$@"
if [[ $? != 0 ]]; then
echo "'$@' failed, bailing out"
exit 1
fi
}
is_git() {
test -d `git rev-parse --show-toplevel`/.git
}
is_git_svn() {
test -f `git rev-parse --show-toplevel`/.git/svn/.metadata
}
# Quiet pushd & popd
pushdq() {
pushd "$@" > /dev/null
}
popdq() {
popd "$@" > /dev/null
}
add_worktree() {
repo_dir=$1
worktree_dir=$2
branch=$3
pushdq $repo_dir
if [ `get_branch` != 'master' ]; then
echo "$repo_dir isn't on master, bailing out"
exit 1
fi
if [ `has_branch $branch` = "yes" ]; then
safe_run git worktree add $worktree_dir $branch
else
safe_run git worktree add -b $branch $worktree_dir
fi
popdq
}
remove_worktree() {
repo_dir=$1
if [ "$2" != "" ]; then
worktree_dir=$2
safe_run rm -rf $worktree_dir
fi
pushdq $repo_dir
safe_run git worktree prune
popdq
}
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