mirror of
https://github.com/NixOS/nix.git
synced 2024-11-22 14:52:55 +00:00
* When obtaining derivations from Nix expressions, ignore all
expressions that cause an assertion failure (like `assert system == "i686-linux"'). This allows all-packages.nix in Nixpkgs to be used on all platforms, even if some Nix expressions don't work on all platforms. Not sure if this is a good idea; it's a bit hacky. In particular, due to laziness some derivations might appear in `nix-env -qa' but disappear in `nix-env -qas' or `nix-env -i'. Commit 5000!
This commit is contained in:
Eelco Dolstra
parent
9088dee9e2
commit
6dca5c9099
@ -383,7 +383,13 @@ Expr evalExpr(EvalState & state, Expr e)
|
||||
|
||||
/* Otherwise, evaluate and memoize. */
|
||||
state.normalForms.set(e, state.blackHole);
|
||||
nf = evalExpr2(state, e);
|
||||
try {
|
||||
nf = evalExpr2(state, e);
|
||||
} catch (Error & err) {
|
||||
debug("removing black hole");
|
||||
state.normalForms.remove(e);
|
||||
throw;
|
||||
}
|
||||
state.normalForms.set(e, nf);
|
||||
return nf;
|
||||
}
|
||||
|
||||
@ -5,40 +5,51 @@
|
||||
typedef set<Expr> Exprs;
|
||||
|
||||
|
||||
/* Evaluate expression `e'. If it evaluates to an attribute set of
|
||||
type `derivation', then put information about it in `drvs' (unless
|
||||
it's already in `doneExprs'). The result boolean indicates whether
|
||||
it makes sense for the caller to recursively search for derivations
|
||||
in `e'. */
|
||||
static bool getDerivation(EvalState & state, Expr e,
|
||||
DrvInfos & drvs, Exprs & doneExprs)
|
||||
{
|
||||
ATermList es;
|
||||
e = evalExpr(state, e);
|
||||
if (!matchAttrs(e, es)) return false;
|
||||
try {
|
||||
|
||||
ATermList es;
|
||||
e = evalExpr(state, e);
|
||||
if (!matchAttrs(e, es)) return true;
|
||||
|
||||
ATermMap attrs;
|
||||
queryAllAttrs(e, attrs, false);
|
||||
ATermMap attrs;
|
||||
queryAllAttrs(e, attrs, false);
|
||||
|
||||
Expr a = attrs.get("type");
|
||||
if (!a || evalString(state, a) != "derivation") return false;
|
||||
Expr a = attrs.get("type");
|
||||
if (!a || evalString(state, a) != "derivation") return true;
|
||||
|
||||
/* Remove spurious duplicates (e.g., an attribute set like `rec {
|
||||
x = derivation {...}; y = x;}'. */
|
||||
if (doneExprs.find(e) != doneExprs.end()) return true;
|
||||
doneExprs.insert(e);
|
||||
/* Remove spurious duplicates (e.g., an attribute set like
|
||||
`rec { x = derivation {...}; y = x;}'. */
|
||||
if (doneExprs.find(e) != doneExprs.end()) return false;
|
||||
doneExprs.insert(e);
|
||||
|
||||
DrvInfo drv;
|
||||
DrvInfo drv;
|
||||
|
||||
a = attrs.get("name");
|
||||
if (!a) throw badTerm("derivation name missing", e);
|
||||
drv.name = evalString(state, a);
|
||||
a = attrs.get("name");
|
||||
if (!a) throw badTerm("derivation name missing", e);
|
||||
drv.name = evalString(state, a);
|
||||
|
||||
a = attrs.get("system");
|
||||
if (!a)
|
||||
drv.system = "unknown";
|
||||
else
|
||||
drv.system = evalString(state, a);
|
||||
a = attrs.get("system");
|
||||
if (!a)
|
||||
drv.system = "unknown";
|
||||
else
|
||||
drv.system = evalString(state, a);
|
||||
|
||||
drv.attrs = attrs;
|
||||
drv.attrs = attrs;
|
||||
|
||||
drvs.push_back(drv);
|
||||
return true;
|
||||
drvs.push_back(drv);
|
||||
return false;
|
||||
|
||||
} catch (AssertionError & e) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -46,9 +57,10 @@ bool getDerivation(EvalState & state, Expr e, DrvInfo & drv)
|
||||
{
|
||||
Exprs doneExprs;
|
||||
DrvInfos drvs;
|
||||
bool result = getDerivation(state, e, drvs, doneExprs);
|
||||
if (result) drv = drvs.front();
|
||||
return result;
|
||||
getDerivation(state, e, drvs, doneExprs);
|
||||
if (drvs.size() != 1) return false;
|
||||
drv = drvs.front();
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
@ -101,26 +113,28 @@ static void getDerivations(EvalState & state, Expr e,
|
||||
ATermList es;
|
||||
DrvInfo drv;
|
||||
|
||||
e = evalExpr(state, e);
|
||||
|
||||
if (getDerivation(state, e, drvs, doneExprs)) {
|
||||
if (!getDerivation(state, e, drvs, doneExprs)) {
|
||||
if (apType != apNone) throw attrError;
|
||||
return;
|
||||
}
|
||||
|
||||
e = evalExpr(state, e);
|
||||
|
||||
if (matchAttrs(e, es)) {
|
||||
if (apType != apNone && apType != apAttr) throw attrError;
|
||||
ATermMap drvMap;
|
||||
queryAllAttrs(e, drvMap);
|
||||
if (apType == apNone) {
|
||||
for (ATermIterator i(drvMap.keys()); i; ++i) {
|
||||
debug(format("evaluating attribute `%1%'") % aterm2String(*i));
|
||||
startNest(nest, lvlDebug,
|
||||
format("evaluating attribute `%1%'") % aterm2String(*i));
|
||||
getDerivation(state, drvMap.get(*i), drvs, doneExprs);
|
||||
}
|
||||
} else {
|
||||
Expr e2 = drvMap.get(attr);
|
||||
if (!e2) throw Error(format("attribute `%1%' in selection path not found") % attr);
|
||||
debug(format("evaluating attribute `%1%'") % attr);
|
||||
startNest(nest, lvlDebug,
|
||||
format("evaluating attribute `%1%'") % attr);
|
||||
getDerivation(state, e2, drvs, doneExprs);
|
||||
if (!attrPath.empty())
|
||||
getDerivations(state, e2, drvs, doneExprs, attrPathRest);
|
||||
@ -132,14 +146,16 @@ static void getDerivations(EvalState & state, Expr e,
|
||||
if (apType != apNone && apType != apIndex) throw attrError;
|
||||
if (apType == apNone) {
|
||||
for (ATermIterator i(es); i; ++i) {
|
||||
debug(format("evaluating list element"));
|
||||
startNest(nest, lvlDebug,
|
||||
format("evaluating list element"));
|
||||
if (!getDerivation(state, *i, drvs, doneExprs))
|
||||
getDerivations(state, *i, drvs, doneExprs, attrPathRest);
|
||||
}
|
||||
} else {
|
||||
Expr e2 = ATelementAt(es, attrIndex);
|
||||
if (!e2) throw Error(format("list index %1% in selection path not found") % attrIndex);
|
||||
debug(format("evaluating list element"));
|
||||
startNest(nest, lvlDebug,
|
||||
format("evaluating list element"));
|
||||
if (!getDerivation(state, e2, drvs, doneExprs))
|
||||
getDerivations(state, e2, drvs, doneExprs, attrPathRest);
|
||||
}
|
||||
|
||||
@ -762,47 +762,53 @@ static void opQuery(Globals & globals,
|
||||
for (vector<DrvInfo>::iterator i = elems2.begin();
|
||||
i != elems2.end(); ++i)
|
||||
{
|
||||
Strings columns;
|
||||
try {
|
||||
|
||||
Strings columns;
|
||||
|
||||
if (printStatus) {
|
||||
Substitutes subs = querySubstitutes(noTxn, i->queryOutPath(globals.state));
|
||||
columns.push_back(
|
||||
(string) (installed.find(i->queryOutPath(globals.state))
|
||||
!= installed.end() ? "I" : "-")
|
||||
+ (isValidPath(i->queryOutPath(globals.state)) ? "P" : "-")
|
||||
+ (subs.size() > 0 ? "S" : "-"));
|
||||
}
|
||||
|
||||
if (printName) columns.push_back(i->name);
|
||||
|
||||
if (compareVersions) {
|
||||
/* Compare this element against the versions of the same
|
||||
named packages in either the set of available elements,
|
||||
or the set of installed elements. !!! This is O(N *
|
||||
M), should be O(N * lg M). */
|
||||
string version;
|
||||
VersionDiff diff = compareVersionAgainstSet(*i, otherElems, version);
|
||||
char ch;
|
||||
switch (diff) {
|
||||
case cvLess: ch = '>'; break;
|
||||
case cvEqual: ch = '='; break;
|
||||
case cvGreater: ch = '<'; break;
|
||||
case cvUnavail: ch = '-'; break;
|
||||
default: abort();
|
||||
if (printStatus) {
|
||||
Substitutes subs = querySubstitutes(noTxn, i->queryOutPath(globals.state));
|
||||
columns.push_back(
|
||||
(string) (installed.find(i->queryOutPath(globals.state))
|
||||
!= installed.end() ? "I" : "-")
|
||||
+ (isValidPath(i->queryOutPath(globals.state)) ? "P" : "-")
|
||||
+ (subs.size() > 0 ? "S" : "-"));
|
||||
}
|
||||
string column = (string) "" + ch + " " + version;
|
||||
if (diff == cvGreater) column = colorString(column);
|
||||
columns.push_back(column);
|
||||
}
|
||||
|
||||
if (printSystem) columns.push_back(i->system);
|
||||
if (printName) columns.push_back(i->name);
|
||||
|
||||
if (printDrvPath) columns.push_back(
|
||||
i->queryDrvPath(globals.state) == ""
|
||||
? "-" : i->queryDrvPath(globals.state));
|
||||
if (compareVersions) {
|
||||
/* Compare this element against the versions of the
|
||||
same named packages in either the set of available
|
||||
elements, or the set of installed elements. !!!
|
||||
This is O(N * M), should be O(N * lg M). */
|
||||
string version;
|
||||
VersionDiff diff = compareVersionAgainstSet(*i, otherElems, version);
|
||||
char ch;
|
||||
switch (diff) {
|
||||
case cvLess: ch = '>'; break;
|
||||
case cvEqual: ch = '='; break;
|
||||
case cvGreater: ch = '<'; break;
|
||||
case cvUnavail: ch = '-'; break;
|
||||
default: abort();
|
||||
}
|
||||
string column = (string) "" + ch + " " + version;
|
||||
if (diff == cvGreater) column = colorString(column);
|
||||
columns.push_back(column);
|
||||
}
|
||||
|
||||
if (printSystem) columns.push_back(i->system);
|
||||
|
||||
if (printDrvPath) columns.push_back(
|
||||
i->queryDrvPath(globals.state) == ""
|
||||
? "-" : i->queryDrvPath(globals.state));
|
||||
|
||||
if (printOutPath) columns.push_back(i->queryOutPath(globals.state));
|
||||
table.push_back(columns);
|
||||
if (printOutPath) columns.push_back(i->queryOutPath(globals.state));
|
||||
|
||||
table.push_back(columns);
|
||||
}
|
||||
catch (AssertionError & e) {
|
||||
}
|
||||
}
|
||||
|
||||
printTable(table);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user