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fix(util/lean_path): do not crash if HOME is not set

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This commit is contained in:
Gabriel Ebner 2017-05-07 13:29:29 +02:00
parent d21945fa86
commit 02c744941e
1 changed files with 5 additions and 1 deletions
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6
src/util/lean_path.cpp
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@ -43,7 +43,11 @@ optional<std::string> get_leanpkg_path_file() {
std::string get_user_leanpkg_path() {
// TODO(gabriel): check if this works on windows
return std::string(getenv("HOME")) + get_dir_sep() + ".lean" + get_dir_sep() + "leanpkg.path";
if (auto home = getenv("HOME")) {
return std::string(home) + get_dir_sep() + ".lean" + get_dir_sep() + "leanpkg.path";
} else {
return "/could-not-find-home";
}
}
static optional<std::string> begins_with(std::string const & s, std::string const & prefix) {