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|
#!/bin/rc
rfork en
. /sys/lib/git/common.rc
flagfmt='d:debug, b:branch branch'; args='remote [local]'
eval `''{aux/getflags $*} || exec aux/usage
if(~ $debug 1)
debug=(-d)
remote=`{echo $1 | subst -g '/*$'}
local=$2
if(~ $#remote 0)
exec aux/usage
if(~ $#local 0)
local=`{basename $remote .git}
if(~ $#branch 1)
branchflag=(-b $branch)
if(test -e $local)
die 'repository already exists:' $local
fn clone{
flag +e
mkdir -p $local/.git
mkdir -p $local/.git/fs
mkdir -p $local/.git/objects/pack/
mkdir -p $local/.git/refs/heads/
cd $local
>>.git/config {
echo '[remote "origin"]'
echo ' url='$remote
}
{git/fetch $debug $branchflag $remote >[2=3] | awk '
BEGIN{
headref=""
if(ENVIRON["branch"] != "")
headref="refs/remotes/origin/"ENVIRON["branch"]
headhash=""
}
/^symref / && headref == "" {
if($2 == "HEAD"){
gsub("^refs/heads", "refs/remotes/origin", $3)
gsub("^refs/tags", "refs/remotes/origin/tags", $3)
}
}
/^remote /{
if($2=="HEAD"){
headhash=$3
}else if(match($2, "^refs/(heads|tags)/")){
gsub("^refs/heads", "refs/remotes/origin", $2)
if($2 == headref || (headref == "" && $3 == headhash))
headref=$2
outfile = ".git/" $2
outdir = outfile
gsub("/?[^/]*/?$", "", outdir)
system("mkdir -p "outdir)
print $3 > outfile
close(outfile)
}
}
END{
if(headref != ""){
remote = headref;
refdir = headref;
gsub("/?[^/]*/?$", "", refdir)
gsub("^refs/remotes/origin", "refs/heads", headref)
system("mkdir -p .git/"refdir);
system("cp .git/" remote " .git/" headref)
print "ref: " headref > ".git/HEAD"
}else if(headhash != ""){
print "warning: detached head "headhash > "/fd/2"
print headhash > ".git/HEAD"
}
}
'} |[3] tr '\x0d' '\x0a' || die 'could not clone repository'
tree=.git/fs/HEAD/tree
lbranch=`{git/branch}
rbranch=`{echo $lbranch | subst '^heads' 'remotes/origin'}
echo checking out repository...
if(test -f .git/refs/$rbranch){
cp .git/refs/$rbranch .git/refs/$lbranch
git/fs
@ {builtin cd $tree && tar cif /fd/1 .} | @ {tar xf /fd/0} \
|| die 'checkout failed:' $status
for(f in `$nl{walk -f $tree | subst '^'$tree'/*'}){
if(! ~ $#f 0){
idx=.git/index9/tracked/$f
mkdir -p `$nl{basename -d $idx}
walk -eq $f > $idx
}
}
}
if not{
echo no default branch >[1=2]
echo check out your code with git/branch >[1=2]
}
}
fn sigint {
echo cancelled clone $remote: cleaning $local >[1=2]
rm -rf $local
exit interrupted
}
@{clone}
st=$status
if(! ~ $st ''){
echo failed to clone $remote: cleaning $local >[1=2]
rm -rf $local
exit $st
}
exit ''
|
