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* nix-env -e: support uninstalling by path, so that one can say

Browse source 
$ nix-env -e $(which firefox)

  or

    $ nix-env -e /nix/store/nywzlygrkfcgz7dfmhm5xixlx1l0m60v-pan-0.132

* nix-env -i: if an argument contains a slash anywhere, treat it as a
  path and follow it through symlinks into the Nix store.  This allows
  things like

    $ nix-build -A firefox
    $ nix-env -i ./result

* nix-env -q/-i/-e: don't complain when the `*' selector doesn't match
  anything.  In particular, `nix-env -q \*' doesn't fail anymore on an
  empty profile.
This commit is contained in:
Eelco Dolstra 2007-11-29 16:18:24 +00:00
parent 12d0a1eb75
commit 633518628f
7 changed files with 81 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

36
src/nix-store/nix-store.cc
View file

@ -31,18 +31,6 @@ static int rootNr = 0;
static bool indirectRoot = false;
static Path fixPath(Path path)
{
path = absPath(path);
while (!isInStore(path)) {
if (!isLink(path)) break;
string target = readLink(path);
path = absPath(target, dirOf(path));
}
return toStorePath(path);
}
static Path useDeriver(Path path)
{
if (!isDerivation(path)) {
@ -86,7 +74,7 @@ static void opRealise(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
*i = fixPath(*i);
*i = followLinksToStorePath(*i);
if (opArgs.size() > 1) {
PathSet drvPaths;
@ -296,7 +284,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
{
*i = fixPath(*i);
*i = followLinksToStorePath(*i);
if (forceRealise) realisePath(*i);
Derivation drv = derivationFromPath(*i);
cout << format("%1%\n") % findOutput(drv, "out");
@ -312,7 +300,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
{
Path path = maybeUseOutput(fixPath(*i), useOutput, forceRealise);
Path path = maybeUseOutput(followLinksToStorePath(*i), useOutput, forceRealise);
if (query == qRequisites)
storePathRequisites(path, includeOutputs, paths);
else if (query == qReferences) store->queryReferences(path, paths);
@ -330,7 +318,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
{
Path deriver = store->queryDeriver(fixPath(*i));
Path deriver = store->queryDeriver(followLinksToStorePath(*i));
cout << format("%1%\n") %
(deriver == "" ? "unknown-deriver" : deriver);
}
@ -340,7 +328,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
{
Path path = useDeriver(fixPath(*i));
Path path = useDeriver(followLinksToStorePath(*i));
Derivation drv = derivationFromPath(path);
StringPairs::iterator j = drv.env.find(bindingName);
if (j == drv.env.end())
@ -354,7 +342,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
{
Path path = maybeUseOutput(fixPath(*i), useOutput, forceRealise);
Path path = maybeUseOutput(followLinksToStorePath(*i), useOutput, forceRealise);
Hash hash = store->queryPathHash(path);
assert(hash.type == htSHA256);
cout << format("sha256:%1%\n") % printHash32(hash);
@ -365,7 +353,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
PathSet done;
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
printTree(fixPath(*i), "", "", done);
printTree(followLinksToStorePath(*i), "", "", done);
break;
}
@ -373,7 +361,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
PathSet roots;
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
roots.insert(maybeUseOutput(fixPath(*i), useOutput, forceRealise));
roots.insert(maybeUseOutput(followLinksToStorePath(*i), useOutput, forceRealise));
printDotGraph(roots);
break;
}
@ -381,7 +369,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
case qResolve: {
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
cout << format("%1%\n") % fixPath(*i);
cout << format("%1%\n") % followLinksToStorePath(*i);
break;
}
@ -398,7 +386,7 @@ static void opReadLog(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
{
Path path = useDeriver(fixPath(*i));
Path path = useDeriver(followLinksToStorePath(*i));
Path logPath = (format("%1%/%2%/%3%") %
nixLogDir % drvsLogDir % baseNameOf(path)).str();
@ -456,7 +444,7 @@ static void opCheckValidity(Strings opFlags, Strings opArgs)
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
{
Path path = fixPath(*i);
Path path = followLinksToStorePath(*i);
if (!store->isValidPath(path))
if (printInvalid)
cout << format("%1%\n") % path;
@ -531,7 +519,7 @@ static void opDelete(Strings opFlags, Strings opArgs)
PathSet pathsToDelete;
for (Strings::iterator i = opArgs.begin();
i != opArgs.end(); ++i)
pathsToDelete.insert(fixPath(*i));
pathsToDelete.insert(followLinksToStorePath(*i));
PathSet dummy;
PrintFreed freed(true, false);