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* Implemented Eelco V.'s `-p' command to switch profiles. It switches

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the symlink ~/.nix-userenv to the given argument (which defaults to
  .../links/current).  /etc/profile.d/nix-profile creates this symlink
  if it doesn't exist yet.  Example use:

  $ nix-env -l my_profile -i foo.nix subversion quake
  $ nix-env -p my_profile

  I don't like the term "profile".  Let's deprecate it :-)
This commit is contained in:
Eelco Dolstra 2004-01-05 11:18:59 +00:00
parent 0e68af0ce3
commit f83c5e3e5f
3 changed files with 33 additions and 18 deletions
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22
src/nix-env/main.cc
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@ -605,6 +605,26 @@ static void opQuery(Globals & globals,
}
static void opSwitchProfile(Globals & globals,
Strings opFlags, Strings opArgs)
{
if (opFlags.size() > 0)
throw UsageError(format("unknown flags `%1%'") % opFlags.front());
if (opArgs.size() > 1)
throw UsageError(format("--profile takes at most one argument"));
string linkPath =
opArgs.size() == 0 ? globals.linkPath : opArgs.front();
string homeDir(getenv("HOME"));
if (homeDir == "") throw Error("HOME environment variable not set");
string linkPathFinal = homeDir + "/.nix-userenv";
switchLink(linkPathFinal, linkPath);
}
void run(Strings args)
{
/* Use a higher default verbosity (lvlInfo). */
@ -635,6 +655,8 @@ void run(Strings args)
format("`%1%' requires an argument") % arg);
globals.linkPath = absPath(*i);
}
else if (arg == "--profile" || arg == "-p")
op = opSwitchProfile;
else if (arg[0] == '-')
opFlags.push_back(arg);
else