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Add "nix search" command

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This commit is contained in:
Eelco Dolstra 2017-07-17 19:02:56 +02:00
parent 3162ad5ff4
commit 90825dea51
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GPG key ID: 8170B4726D7198DE
9 changed files with 263 additions and 102 deletions
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90
src/nix-env/nix-env.cc
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@ -186,7 +186,7 @@ static void loadDerivations(EvalState & state, Path nixExprPath,
system. */
for (DrvInfos::iterator i = elems.begin(), j; i != elems.end(); i = j) {
j = i; j++;
if (systemFilter != "*" && i->system != systemFilter)
if (systemFilter != "*" && i->querySystem() != systemFilter)
elems.erase(i);
}
}
@ -247,7 +247,7 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems,
for (DrvInfos::const_iterator j = allElems.begin();
j != allElems.end(); ++j, ++n)
{
DrvName drvName(j->name);
DrvName drvName(j->queryName());
if (i.matches(drvName)) {
i.hits++;
matches.push_back(std::pair<DrvInfo, unsigned int>(*j, n));
@ -269,36 +269,36 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems,
StringSet multiple;
for (auto & j : matches) {
DrvName drvName(j.first.name);
DrvName drvName(j.first.queryName());
int d = 1;
Newest::iterator k = newest.find(drvName.name);
if (k != newest.end()) {
d = j.first.system == k->second.first.system ? 0 :
j.first.system == settings.thisSystem ? 1 :
k->second.first.system == settings.thisSystem ? -1 : 0;
d = j.first.querySystem() == k->second.first.querySystem() ? 0 :
j.first.querySystem() == settings.thisSystem ? 1 :
k->second.first.querySystem() == settings.thisSystem ? -1 : 0;
if (d == 0)
d = comparePriorities(state, j.first, k->second.first);
if (d == 0)
d = compareVersions(drvName.version, DrvName(k->second.first.name).version);
d = compareVersions(drvName.version, DrvName(k->second.first.queryName()).version);
}
if (d > 0) {
newest.erase(drvName.name);
newest.insert(Newest::value_type(drvName.name, j));
multiple.erase(j.first.name);
multiple.erase(j.first.queryName());
} else if (d == 0) {
multiple.insert(j.first.name);
multiple.insert(j.first.queryName());
}
}
matches.clear();
for (auto & j : newest) {
if (multiple.find(j.second.first.name) != multiple.end())
if (multiple.find(j.second.first.queryName()) != multiple.end())
printInfo(
format("warning: there are multiple derivations named ‘%1%’; using the first one")
% j.second.first.name);
"warning: there are multiple derivations named ‘%1%’; using the first one",
j.second.first.queryName());
matches.push_back(j.second);
}
}
@ -386,7 +386,8 @@ static void queryInstSources(EvalState & state,
if (dash != string::npos)
name = string(name, dash + 1);
DrvInfo elem(state, name, "", "", 0);
DrvInfo elem(state, "", nullptr);
elem.setName(name);
if (isDerivation(path)) {
elem.setDrvPath(path);
@ -468,8 +469,8 @@ static void installDerivations(Globals & globals,
path is not the one we want (e.g., `java-front' versus
`java-front-0.9pre15899'). */
if (globals.forceName != "")
i.name = globals.forceName;
newNames.insert(DrvName(i.name).name);
i.setName(globals.forceName);
newNames.insert(DrvName(i.queryName()).name);
}
@ -484,17 +485,17 @@ static void installDerivations(Globals & globals,
DrvInfos installedElems = queryInstalled(*globals.state, profile);
for (auto & i : installedElems) {
DrvName drvName(i.name);
DrvName drvName(i.queryName());
if (!globals.preserveInstalled &&
newNames.find(drvName.name) != newNames.end() &&
!keep(i))
printInfo(format("replacing old ‘%1%’") % i.name);
printInfo("replacing old ‘%s’", i.queryName());
else
allElems.push_back(i);
}
for (auto & i : newElems)
printInfo(format("installing ‘%1%’") % i.name);
printInfo("installing ‘%s’", i.queryName());
}
printMissing(*globals.state, newElems);
@ -548,7 +549,7 @@ static void upgradeDerivations(Globals & globals,
/* Go through all installed derivations. */
DrvInfos newElems;
for (auto & i : installedElems) {
DrvName drvName(i.name);
DrvName drvName(i.queryName());
try {
@ -569,7 +570,7 @@ static void upgradeDerivations(Globals & globals,
for (auto j = availElems.begin(); j != availElems.end(); ++j) {
if (comparePriorities(*globals.state, i, *j) > 0)
continue;
DrvName newName(j->name);
DrvName newName(j->queryName());
if (newName.name == drvName.name) {
int d = compareVersions(drvName.version, newName.version);
if ((upgradeType == utLt && d < 0) ||
@ -596,14 +597,13 @@ static void upgradeDerivations(Globals & globals,
{
const char * action = compareVersions(drvName.version, bestVersion) <= 0
? "upgrading" : "downgrading";
printInfo(
format("%1% ‘%2%’ to ‘%3%’")
% action % i.name % bestElem->name);
printInfo("%1% ‘%2%’ to ‘%3%’",
action, i.queryName(), bestElem->queryName());
newElems.push_back(*bestElem);
} else newElems.push_back(i);
} catch (Error & e) {
e.addPrefix(format("while trying to find an upgrade for ‘%1%’:\n") % i.name);
e.addPrefix(fmt("while trying to find an upgrade for ‘%s’:\n", i.queryName()));
throw;
}
}
@ -663,10 +663,10 @@ static void opSetFlag(Globals & globals, Strings opFlags, Strings opArgs)
/* Update all matching derivations. */
for (auto & i : installedElems) {
DrvName drvName(i.name);
DrvName drvName(i.queryName());
for (auto & j : selectors)
if (j.matches(drvName)) {
printInfo(format("setting flag on ‘%1%’") % i.name);
printInfo("setting flag on ‘%1%’", i.queryName());
j.hits++;
setMetaFlag(*globals.state, i, flagName, flagValue);
break;
@ -702,7 +702,7 @@ static void opSet(Globals & globals, Strings opFlags, Strings opArgs)
DrvInfo & drv(elems.front());
if (globals.forceName != "")
drv.name = globals.forceName;
drv.setName(globals.forceName);
if (drv.queryDrvPath() != "") {
PathSet paths = {drv.queryDrvPath()};
@ -732,7 +732,7 @@ static void uninstallDerivations(Globals & globals, Strings & selectors,
DrvInfos newElems;
for (auto & i : installedElems) {
DrvName drvName(i.name);
DrvName drvName(i.queryName());
bool found = false;
for (auto & j : selectors)
/* !!! the repeated calls to followLinksToStorePath()
@ -740,7 +740,7 @@ static void uninstallDerivations(Globals & globals, Strings & selectors,
if ((isPath(j) && i.queryOutPath() == globals.state->store->followLinksToStorePath(j))
|| DrvName(j).matches(drvName))
{
printInfo(format("uninstalling ‘%1%’") % i.name);
printInfo("uninstalling ‘%s’", i.queryName());
found = true;
break;
}
@ -771,9 +771,11 @@ static bool cmpChars(char a, char b)
static bool cmpElemByName(const DrvInfo & a, const DrvInfo & b)
{
auto a_name = a.queryName();
auto b_name = b.queryName();
return lexicographical_compare(
a.name.begin(), a.name.end(),
b.name.begin(), b.name.end(), cmpChars);
a_name.begin(), a_name.end(),
b_name.begin(), b_name.end(), cmpChars);
}
@ -822,13 +824,13 @@ typedef enum { cvLess, cvEqual, cvGreater, cvUnavail } VersionDiff;
static VersionDiff compareVersionAgainstSet(
const DrvInfo & elem, const DrvInfos & elems, string & version)
{
DrvName name(elem.name);
DrvName name(elem.queryName());
VersionDiff diff = cvUnavail;
version = "?";
for (auto & i : elems) {
DrvName name2(i.name);
DrvName name2(i.queryName());
if (name.name == name2.name) {
int d = compareVersions(name.version, name2.version);
if (d < 0) {
@ -857,8 +859,8 @@ static void queryJSON(Globals & globals, vector<DrvInfo> & elems)
for (auto & i : elems) {
JSONObject pkgObj = topObj.object(i.attrPath);
pkgObj.attr("name", i.name);
pkgObj.attr("system", i.system);
pkgObj.attr("name", i.queryName());
pkgObj.attr("system", i.querySystem());
JSONObject metaObj = pkgObj.object("meta");
StringSet metaNames = i.queryMetaNames();
@ -866,7 +868,7 @@ static void queryJSON(Globals & globals, vector<DrvInfo> & elems)
auto placeholder = metaObj.placeholder(j);
Value * v = i.queryMeta(j);
if (!v) {
printError(format("derivation ‘%1%’ has invalid meta attribute ‘%2%’") % i.name % j);
printError("derivation ‘%s’ has invalid meta attribute ‘%s’", i.queryName(), j);
placeholder.write(nullptr);
} else {
PathSet context;
@ -963,7 +965,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
try {
paths.insert(i.queryOutPath());
} catch (AssertionError & e) {
printMsg(lvlTalkative, format("skipping derivation named ‘%1%’ which gives an assertion failure") % i.name);
printMsg(lvlTalkative, "skipping derivation named ‘%s’ which gives an assertion failure", i.queryName());
i.setFailed();
}
validPaths = globals.state->store->queryValidPaths(paths);
@ -1024,9 +1026,9 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
columns.push_back(i.attrPath);
if (xmlOutput)
attrs["name"] = i.name;
attrs["name"] = i.queryName();
else if (printName)
columns.push_back(i.name);
columns.push_back(i.queryName());
if (compareVersions) {
/* Compare this element against the versions of the
@ -1059,10 +1061,10 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
}
if (xmlOutput) {
if (i.system != "") attrs["system"] = i.system;
if (i.querySystem() != "") attrs["system"] = i.querySystem();
}
else if (printSystem)
columns.push_back(i.system);
columns.push_back(i.querySystem());
if (printDrvPath) {
string drvPath = i.queryDrvPath();
@ -1110,7 +1112,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
attrs2["name"] = j;
Value * v = i.queryMeta(j);
if (!v)
printError(format("derivation ‘%1%’ has invalid meta attribute ‘%2%’") % i.name % j);
printError("derivation ‘%s’ has invalid meta attribute ‘%s’", i.queryName(), j);
else {
if (v->type == tString) {
attrs2["type"] = "string";
@ -1161,9 +1163,9 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
cout.flush();
} catch (AssertionError & e) {
printMsg(lvlTalkative, format("skipping derivation named ‘%1%’ which gives an assertion failure") % i.name);
printMsg(lvlTalkative, "skipping derivation named ‘%1%’ which gives an assertion failure", i.queryName());
} catch (Error & e) {
e.addPrefix(format("while querying the derivation named ‘%1%’:\n") % i.name);
e.addPrefix(fmt("while querying the derivation named ‘%1%’:\n", i.queryName()));
throw;
}
}