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Make "nix-build -A <derivation>.<output>" do the right thing

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For example, given a derivation with outputs "out", "man" and "bin":

  $ nix-build -A pkg

produces ./result pointing to the "out" output;

  $ nix-build -A pkg.man

produces ./result-man pointing to the "man" output;

  $ nix-build -A pkg.all

produces ./result, ./result-man and ./result-bin;

  $ nix-build -A pkg.all -A pkg2

produces ./result, ./result-man, ./result-bin and ./result-2.
This commit is contained in:
Eelco Dolstra 2012-11-26 15:39:10 +01:00
parent a3d6585c5a
commit 46a369ad95
10 changed files with 106 additions and 20 deletions
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14
src/libutil/util.cc
View file

@ -997,13 +997,14 @@ template<class C> C tokenizeString(const string & s, const string & separators)
string::size_type end = s.find_first_of(separators, pos + 1);
if (end == string::npos) end = s.size();
string token(s, pos, end - pos);
result.push_back(token);
result.insert(result.end(), token);
pos = s.find_first_not_of(separators, end);
}
return result;
}
template Strings tokenizeString(const string & s, const string & separators);
template StringSet tokenizeString(const string & s, const string & separators);
template vector<string> tokenizeString(const string & s, const string & separators);
@ -1018,6 +1019,17 @@ string concatStringsSep(const string & sep, const Strings & ss)
}
string concatStringsSep(const string & sep, const StringSet & ss)
{
string s;
foreach (StringSet::const_iterator, i, ss) {
if (s.size() != 0) s += sep;
s += *i;
}
return s;
}
string chomp(const string & s)
{
size_t i = s.find_last_not_of(" \n\r\t");