pyenv verification source

libexec/pyenv-version-file-write

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+# Usage: pyenv version-file-write [-f|--force] <file> <version> [...]
+#
+#   -f/--force    Don't verify that the versions exist
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        -f|--force)
+            FORCE=1
+            shift
+            ;;
+        *)
+            break
+            ;;
+    esac
+done
+
+
+PYENV_VERSION_FILE="$1"
+shift || true
+versions=("$@")
+
+if [ -z "$versions" ] || [ -z "$PYENV_VERSION_FILE" ]; then
+  pyenv-help --usage version-file-write >&2
+  exit 1
+fi
+
+# Make sure the specified version is installed.
+[[ -z $FORCE ]] && pyenv-prefix "${versions[@]}" >/dev/null
+
+# Write the version out to disk.
+# Create an empty file. Using "rm" might cause a permission error.
+> "$PYENV_VERSION_FILE"
+for version in "${versions[@]}"; do
+  echo "$version" >> "$PYENV_VERSION_FILE"
+done