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nix repl: Use $XDG_DATA_HOME for the readline history

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This commit is contained in:
Eelco Dolstra 2017-04-25 18:56:29 +02:00
parent 921a2aeb05
commit 5bd8795e1f
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GPG key ID: 8170B4726D7198DE
3 changed files with 19 additions and 3 deletions
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12
src/libutil/util.cc
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@ -441,6 +441,18 @@ Path getConfigDir()
}
Path getDataDir()
{
Path dataDir = getEnv("XDG_DATA_HOME");
if (dataDir.empty()) {
Path homeDir = getEnv("HOME");
if (homeDir.empty()) throw Error("$XDG_DATA_HOME and $HOME are not set");
dataDir = homeDir + "/.local/share";
}
return dataDir;
}
Paths createDirs(const Path & path)
{
Paths created;

3
src/libutil/util.hh
View file

@ -116,6 +116,9 @@ Path getCacheDir();
/* Return $XDG_CONFIG_HOME or $HOME/.config. */
Path getConfigDir();
/* Return $XDG_DATA_HOME or $HOME/.local/share. */
Path getDataDir();
/* Create a directory and all its parents, if necessary. Returns the
list of created directories, in order of creation. */
Paths createDirs(const Path & path);

7
src/nix/repl.cc
View file

@ -29,9 +29,6 @@ using namespace std;
#define ESC_CYA "\033[36m"
#define ESC_END "\033[0m"
string programId = "nix-repl";
const string historyFile = string(getenv("HOME")) + "/.nix-repl-history";
struct NixRepl
{
string curDir;
@ -45,6 +42,8 @@ struct NixRepl
int displ;
StringSet varNames;
const Path historyFile;
StringSet completions;
StringSet::iterator curCompletion;
@ -115,6 +114,7 @@ string removeWhitespace(string s)
NixRepl::NixRepl(const Strings & searchPath, nix::ref<Store> store)
: state(searchPath, store)
, staticEnv(false, &state.staticBaseEnv)
, historyFile(getDataDir() + "/nix/repl-history")
{
curDir = absPath(".");
}
@ -140,6 +140,7 @@ void NixRepl::mainLoop(const Strings & files)
// Allow nix-repl specific settings in .inputrc
rl_readline_name = "nix-repl";
using_history();
createDirs(dirOf(historyFile));
read_history(historyFile.c_str());
string input;