1 files changed, 35 insertions, 0 deletions
diff --git a/bin/ssh-fetch-git b/bin/ssh-fetch-git
new file mode 100755
index 000000000..7de58ab73
--- /dev/null
+++ b/bin/ssh-fetch-git
@@ -0,0 +1,35 @@
+#! /bin/sh
+# ssh-fetch-git : [user@]hostname x remote_dir x git_url x git_rev -> ()
+set -euf
+
+target=$1
+remote_dir=$2
+git_url=$3
+git_rev=$4
+
+echo '
+  set -euf
+
+  if [ ! -d "$remote_dir" ]; then
+    mkdir -p "$remote_dir"
+  fi
+
+  cd "$remote_dir"
+
+  git init -q
+
+  if ! current_url=$(git config remote.src.url); then
+    git remote add src "$git_url"
+  elif [ $current_url != $git_url ]; then
+    git remote set-url src "$git_url"
+  fi
+
+  git fetch src
+
+  git checkout "$git_rev"
+' \
+  | ssh "$target" env \
+        remote_dir="$remote_dir" \
+        git_rev="$git_rev" \
+        git_url="$git_url" \
+      /bin/sh