diff options
Diffstat (limited to 'src/nix-env')
| -rw-r--r-- | src/nix-env/help.txt | 2 | ||||
| -rw-r--r-- | src/nix-env/main.cc | 22 |
2 files changed, 24 insertions, 0 deletions
diff --git a/src/nix-env/help.txt b/src/nix-env/help.txt index d940bd209d60..3f15e6a8e2de 100644 --- a/src/nix-env/help.txt +++ b/src/nix-env/help.txt @@ -12,6 +12,8 @@ Operations: The previous operations take a list of derivation names. The special name `*' may be used to indicate all derivations. + --profile / -p [FILE]: switch to specified user environment + --version: output version information --help: display help diff --git a/src/nix-env/main.cc b/src/nix-env/main.cc index 7bced5be07a2..64ae6d4120b3 100644 --- a/src/nix-env/main.cc +++ b/src/nix-env/main.cc @@ -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 |