Add a little helper script for CodeQL database fetches

Author: anticomputer

misc/codeql_fetch_db.sh

@@ -0,0 +1,40 @@
+#!/bin/sh
+
+# dep: https://github.com/cli/cli
+# e.g. get_codeql_db.sh ntp-project/ntp cpp
+
+# CodeQL languages:
+#
+# - cpp: The C and C++ programming language
+# - csharp: The C# programming language
+# - go: The Go programming language
+# - java: The Java programming language
+# - python: The Python programming language
+# - ruby: The Ruby programming language
+# - swift: The Swift programming language
+# - rust: The Rust programming language
+
+if [[ "$#" -ne 2 ]]; then
+    echo "Usage: $0 github/nwo language"
+    exit 1
+fi
+
+db_info=$(gh api /repos/"$1"/code-scanning/codeql/databases --jq ".[] | select(.language == \"$2\")")
+
+if [[ "$?" -ne 0 ]]; then
+    exit 1
+fi
+
+if [[ $db_info ]]; then
+    dst=$(echo "$1_$2_codeql_db.zip" | sed 's/\//_/g')
+    echo "Downloading CodeQL database to $PWD/$dst"
+    if [ -e "$dst" ]; then
+        echo "$dst already exists!"
+        exit 1
+    fi
+    gh api /repos/"$1"/code-scanning/codeql/databases/"$2" -H 'Accept: application/zip' > "$dst"
+    echo "Unzip database before use!"
+else
+    echo "No $2 database available for $1"
+    exit 1
+fi