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* Allow the top-level expression to be a derivation.

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* Hack: `nix-env -i *' installs all available derivations.
This commit is contained in:
Eelco Dolstra 2003-11-24 11:01:19 +00:00
parent 496934a99c
commit b857267893
1 changed files with 18 additions and 13 deletions
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31
src/nix-env/main.cc
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@ -53,15 +53,17 @@ bool parseDerivations(EvalState & state, Expr e, DrvInfos & drvs)
{
ATMatcher m;
ATermList es;
DrvInfo drv;
e = evalExpr(state, e);
if (atMatch(m, e) >> "Attrs") {
if (parseDerivation(state, e, drv))
drvs[drv.drvPath] = drv;
else if (atMatch(m, e) >> "Attrs") {
ATermMap drvMap;
queryAllAttrs(e, drvMap);
for (ATermIterator i(drvMap.keys()); i; ++i) {
DrvInfo drv;
debug(format("evaluating attribute `%1%'") % *i);
if (parseDerivation(state, drvMap.get(*i), drv))
drvs[drv.drvPath] = drv;
@ -70,7 +72,6 @@ bool parseDerivations(EvalState & state, Expr e, DrvInfos & drvs)
else if (atMatch(m, e) >> "List" >> es) {
for (ATermIterator i(es); i; ++i) {
DrvInfo drv;
debug(format("evaluating list element"));
if (parseDerivation(state, *i, drv))
drvs[drv.drvPath] = drv;
@ -243,14 +244,18 @@ void installDerivations(EvalState & state,
/* Filter out the ones we're not interested in. */
DrvInfos selectedDrvs;
for (Strings::iterator i = drvNames.begin();
i != drvNames.end(); ++i)
{
NameMap::iterator j = nameMap.find(*i);
if (j == nameMap.end())
throw Error(format("unknown derivation `%1%'") % *i);
else
selectedDrvs[j->second] = availDrvs[j->second];
if (drvNames.size() > 0 && drvNames.front() == "*") { /* !!! hack */
selectedDrvs = availDrvs;
} else {
for (Strings::iterator i = drvNames.begin();
i != drvNames.end(); ++i)
{
NameMap::iterator j = nameMap.find(*i);
if (j == nameMap.end())
throw Error(format("unknown derivation `%1%'") % *i);
else
selectedDrvs[j->second] = availDrvs[j->second];
}
}
/* Add in the already installed derivations. */