ref: ec28e68d5f5d72748d4b2d0be2861956b856ef4f
dir: /pull/
#!/bin/rc -e
rfork en
nl='
'
fn update{
update=$1
branch=$2
upstream=$3
url=$4
dir=$5
{git/fetch -b $branch -u $upstream $url >[2=3] | awk -v 'update='^$update '
function writeref(ref, hash)
{
outfile = ".git/"ref
system("mkdir -p `{basename -d "outfile"}")
print hash > outfile
close(outfile)
}
/^remote/{
if($2=="HEAD")
next
if(update)
writeref($2, $3)
gsub("^refs/heads", "refs/remotes/'$remote'", $2)
writeref($2, $3)
}
'} |[3] tr '\x0d' '\x0a'
}
fn usage{
echo 'usage: $argv0 [-a] [-u upstream] [-b branch]' >[1=2]
echo ' -u up: pull from upstream "up" (default: origin)' >[1=2]
echo ' -f: fetch without updating working copy' >[1=2]
exit usage
}
git/fs
branch=`{awk '$1=="branch"{print $2}' < /mnt/git/ctl}
remote=()
update='true'
upstream=origin
while(~ $1 -*){
switch($1){
case -u;
shift
remote=$1
upstream=SOMEONE
case -b:
shift
branch=$1
case -f;
update=''
case *;
usage
}
shift
}
if(! ~ $#* 0)
usage
if(~ $#remote 0)
remote=`{git/conf 'remote "'$upstream'".url'}
if(~ $#remote 0){
echo 'no idea from where to pull'
exit upstream
}
if(! cd `{git/conf -r})
exit 'not in git repository'
dir=/mnt/git/branch/$branch/tree
if(! git/walk -q){
echo $status
echo 'repository is dirty: commit before pulling' >[1=2]
exit 'dirty'
}
oldfiles=`$nl{git/walk -cfT}
update $update $branch $upstream $remote $dir
if(! ~ $update 0){
rm -f $oldfiles
tree=/mnt/git/HEAD/tree
@{builtin cd $tree && tar cif /fd/1 .} | @{tar xf /fd/0}
for(f in `$nl{walk -f $tree | sed 's@^'$tree'/*@@'}){
if(! ~ $#f 0){
idx=.git/index9/tracked/$f
mkdir -p `{basename -d $idx}
walk -eq $f > $idx
}
}
}