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https://github.com/NixOS/nix.git
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e4f62e4608
* It is tough to contribute to a project that doesn't use a formatter, * It is extra hard to contribute to a project which has configured the formatter, but ignores it for some files * Code formatting makes it harder to hide obscure / weird bugs by accident or on purpose, Let's rip the bandaid off? Note that PRs currently in flight should be able to be merged relatively easily by applying `clang-format` to their tip prior to merge.
97 lines
2 KiB
C++
97 lines
2 KiB
C++
#include "nix/util/util.hh"
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#include "nix/util/users.hh"
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#include "nix/util/environment-variables.hh"
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#include "nix/util/file-system.hh"
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namespace nix {
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Path getCacheDir()
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{
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auto dir = getEnv("NIX_CACHE_HOME");
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if (dir) {
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return *dir;
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} else {
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auto xdgDir = getEnv("XDG_CACHE_HOME");
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if (xdgDir) {
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return *xdgDir + "/nix";
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} else {
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return getHome() + "/.cache/nix";
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}
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}
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}
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Path getConfigDir()
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{
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auto dir = getEnv("NIX_CONFIG_HOME");
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if (dir) {
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return *dir;
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} else {
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auto xdgDir = getEnv("XDG_CONFIG_HOME");
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if (xdgDir) {
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return *xdgDir + "/nix";
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} else {
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return getHome() + "/.config/nix";
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}
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}
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}
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std::vector<Path> getConfigDirs()
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{
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Path configHome = getConfigDir();
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auto configDirs = getEnv("XDG_CONFIG_DIRS").value_or("/etc/xdg");
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std::vector<Path> result = tokenizeString<std::vector<std::string>>(configDirs, ":");
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for (auto & p : result) {
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p += "/nix";
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}
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result.insert(result.begin(), configHome);
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return result;
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}
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Path getDataDir()
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{
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auto dir = getEnv("NIX_DATA_HOME");
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if (dir) {
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return *dir;
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} else {
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auto xdgDir = getEnv("XDG_DATA_HOME");
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if (xdgDir) {
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return *xdgDir + "/nix";
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} else {
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return getHome() + "/.local/share/nix";
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}
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}
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}
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Path getStateDir()
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{
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auto dir = getEnv("NIX_STATE_HOME");
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if (dir) {
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return *dir;
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} else {
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auto xdgDir = getEnv("XDG_STATE_HOME");
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if (xdgDir) {
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return *xdgDir + "/nix";
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} else {
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return getHome() + "/.local/state/nix";
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}
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}
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}
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Path createNixStateDir()
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{
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Path dir = getStateDir();
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createDirs(dir);
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return dir;
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}
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std::string expandTilde(std::string_view path)
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{
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// TODO: expand ~user ?
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auto tilde = path.substr(0, 2);
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if (tilde == "~/" || tilde == "~")
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return getHome() + std::string(path.substr(1));
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else
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return std::string(path);
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}
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} // namespace nix
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