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* Export the nix-env derivation name parsing and version comparison

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logic through the `parseDrvName' and `compareVersions' primops.
  This will allow expressions to easily check whether some dependency
  is a specific needed version or falls in some version range.  See
  tests/lang/eval-okay-versions.nix for examples.
This commit is contained in:
Eelco Dolstra 2008-07-01 10:10:32 +00:00
parent b3b0b2a29e
commit d567baabbd
9 changed files with 103 additions and 37 deletions
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33
src/nix-env/names.hh
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@ -1,33 +0,0 @@
#ifndef __NAMES_H
#define __NAMES_H
#include "types.hh"
namespace nix {
struct DrvName
{
string fullName;
string name;
string version;
unsigned int hits;
DrvName();
DrvName(const string & s);
bool matches(DrvName & n);
};
typedef list<DrvName> DrvNames;
int compareVersions(const string & v1, const string & v2);
DrvNames drvNamesFromArgs(const Strings & opArgs);
}
#endif /* !__NAMES_H */