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-rw-r--r--src/libexpr/flake/flake.hh2
-rw-r--r--src/libexpr/primops/fetchGit.cc91
-rw-r--r--src/libexpr/primops/fetchTree.cc75
-rw-r--r--src/libfetchers/fetchers.cc2
4 files changed, 69 insertions, 101 deletions
diff --git a/src/libexpr/flake/flake.hh b/src/libexpr/flake/flake.hh
index 77f3abdeb..c2bb2888b 100644
--- a/src/libexpr/flake/flake.hh
+++ b/src/libexpr/flake/flake.hh
@@ -106,6 +106,6 @@ void emitTreeAttrs(
EvalState & state,
const fetchers::Tree & tree,
const fetchers::Input & input,
- Value & v);
+ Value & v, bool emptyRevFallback = false);
}
diff --git a/src/libexpr/primops/fetchGit.cc b/src/libexpr/primops/fetchGit.cc
deleted file mode 100644
index 5013e74f0..000000000
--- a/src/libexpr/primops/fetchGit.cc
+++ /dev/null
@@ -1,91 +0,0 @@
-#include "primops.hh"
-#include "eval-inline.hh"
-#include "store-api.hh"
-#include "hash.hh"
-#include "fetchers.hh"
-#include "url.hh"
-
-namespace nix {
-
-static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Value & v)
-{
- std::string url;
- std::optional<std::string> ref;
- std::optional<Hash> rev;
- std::string name = "source";
- bool fetchSubmodules = false;
- PathSet context;
-
- state.forceValue(*args[0]);
-
- if (args[0]->type == tAttrs) {
-
- state.forceAttrs(*args[0], pos);
-
- for (auto & attr : *args[0]->attrs) {
- string n(attr.name);
- if (n == "url")
- url = state.coerceToString(*attr.pos, *attr.value, context, false, false);
- else if (n == "ref")
- ref = state.forceStringNoCtx(*attr.value, *attr.pos);
- else if (n == "rev")
- rev = Hash(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA1);
- else if (n == "name")
- name = state.forceStringNoCtx(*attr.value, *attr.pos);
- else if (n == "submodules")
- fetchSubmodules = state.forceBool(*attr.value, *attr.pos);
- else
- throw EvalError({
- .hint = hintfmt("unsupported argument '%s' to 'fetchGit'", attr.name),
- .errPos = *attr.pos
- });
- }
-
- if (url.empty())
- throw EvalError({
- .hint = hintfmt("'url' argument required"),
- .errPos = pos
- });
-
- } else
- url = state.coerceToString(pos, *args[0], context, false, false);
-
- // FIXME: git externals probably can be used to bypass the URI
- // whitelist. Ah well.
- state.checkURI(url);
-
- if (evalSettings.pureEval && !rev)
- throw Error("in pure evaluation mode, 'fetchGit' requires a Git revision");
-
- fetchers::Attrs attrs;
- attrs.insert_or_assign("type", "git");
- attrs.insert_or_assign("url", url.find("://") != std::string::npos ? url : "file://" + url);
- if (ref) attrs.insert_or_assign("ref", *ref);
- if (rev) attrs.insert_or_assign("rev", rev->gitRev());
- if (fetchSubmodules) attrs.insert_or_assign("submodules", fetchers::Explicit<bool>{true});
- auto input = fetchers::Input::fromAttrs(std::move(attrs));
-
- // FIXME: use name?
- auto [tree, input2] = input.fetch(state.store);
-
- state.mkAttrs(v, 8);
- auto storePath = state.store->printStorePath(tree.storePath);
- mkString(*state.allocAttr(v, state.sOutPath), storePath, PathSet({storePath}));
- // Backward compatibility: set 'rev' to
- // 0000000000000000000000000000000000000000 for a dirty tree.
- auto rev2 = input2.getRev().value_or(Hash(htSHA1));
- mkString(*state.allocAttr(v, state.symbols.create("rev")), rev2.gitRev());
- mkString(*state.allocAttr(v, state.symbols.create("shortRev")), rev2.gitShortRev());
- // Backward compatibility: set 'revCount' to 0 for a dirty tree.
- mkInt(*state.allocAttr(v, state.symbols.create("revCount")),
- input2.getRevCount().value_or(0));
- mkBool(*state.allocAttr(v, state.symbols.create("submodules")), fetchSubmodules);
- v.attrs->sort();
-
- if (state.allowedPaths)
- state.allowedPaths->insert(tree.actualPath);
-}
-
-static RegisterPrimOp r("fetchGit", 1, prim_fetchGit);
-
-}
diff --git a/src/libexpr/primops/fetchTree.cc b/src/libexpr/primops/fetchTree.cc
index 5f480d919..cddcf0e59 100644
--- a/src/libexpr/primops/fetchTree.cc
+++ b/src/libexpr/primops/fetchTree.cc
@@ -14,7 +14,8 @@ void emitTreeAttrs(
EvalState & state,
const fetchers::Tree & tree,
const fetchers::Input & input,
- Value & v)
+ Value & v,
+ bool emptyRevFallback)
{
assert(input.isImmutable());
@@ -34,10 +35,20 @@ void emitTreeAttrs(
if (auto rev = input.getRev()) {
mkString(*state.allocAttr(v, state.symbols.create("rev")), rev->gitRev());
mkString(*state.allocAttr(v, state.symbols.create("shortRev")), rev->gitShortRev());
+ } else if (emptyRevFallback) {
+ // Backwards compat for `builtins.fetchGit`: dirty repos return an empty sha1 as rev
+ auto emptyHash = Hash(htSHA1);
+ mkString(*state.allocAttr(v, state.symbols.create("rev")), emptyHash.gitRev());
+ mkString(*state.allocAttr(v, state.symbols.create("shortRev")), emptyHash.gitRev());
}
+ if (input.getType() == "git")
+ mkBool(*state.allocAttr(v, state.symbols.create("submodules")), maybeGetBoolAttr(input.attrs, "submodules").value_or(false));
+
if (auto revCount = input.getRevCount())
mkInt(*state.allocAttr(v, state.symbols.create("revCount")), *revCount);
+ else if (emptyRevFallback)
+ mkInt(*state.allocAttr(v, state.symbols.create("revCount")), 0);
if (auto lastModified = input.getLastModified()) {
mkInt(*state.allocAttr(v, state.symbols.create("lastModified")), *lastModified);
@@ -48,10 +59,26 @@ void emitTreeAttrs(
v.attrs->sort();
}
-static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, Value & v)
+std::string fixURI(std::string uri, EvalState &state)
{
- settings.requireExperimentalFeature("flakes");
+ state.checkURI(uri);
+ return uri.find("://") != std::string::npos ? uri : "file://" + uri;
+}
+
+void addURI(EvalState &state, fetchers::Attrs &attrs, Symbol name, std::string v)
+{
+ string n(name);
+ attrs.emplace(name, n == "url" ? fixURI(v, state) : v);
+}
+static void fetchTree(
+ EvalState &state,
+ const Pos &pos,
+ Value **args,
+ Value &v,
+ const std::optional<std::string> type,
+ bool emptyRevFallback = false
+) {
fetchers::Input input;
PathSet context;
@@ -64,8 +91,15 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
for (auto & attr : *args[0]->attrs) {
state.forceValue(*attr.value);
- if (attr.value->type == tString)
- attrs.emplace(attr.name, attr.value->string.s);
+ if (attr.value->type == tPath || attr.value->type == tString)
+ addURI(
+ state,
+ attrs,
+ attr.name,
+ state.coerceToString(*attr.pos, *attr.value, context, false, false)
+ );
+ else if (attr.value->type == tString)
+ addURI(state, attrs, attr.name, attr.value->string.s);
else if (attr.value->type == tBool)
attrs.emplace(attr.name, fetchers::Explicit<bool>{attr.value->boolean});
else if (attr.value->type == tInt)
@@ -75,6 +109,9 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
attr.name, showType(*attr.value));
}
+ if (type)
+ attrs.emplace("type", type.value());
+
if (!attrs.count("type"))
throw Error({
.hint = hintfmt("attribute 'type' is missing in call to 'fetchTree'"),
@@ -82,8 +119,18 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
});
input = fetchers::Input::fromAttrs(std::move(attrs));
- } else
- input = fetchers::Input::fromURL(state.coerceToString(pos, *args[0], context, false, false));
+ } else {
+ auto url = fixURI(state.coerceToString(pos, *args[0], context, false, false), state);
+
+ if (type == "git") {
+ fetchers::Attrs attrs;
+ attrs.emplace("type", "git");
+ attrs.emplace("url", url);
+ input = fetchers::Input::fromAttrs(std::move(attrs));
+ } else {
+ input = fetchers::Input::fromURL(url);
+ }
+ }
if (!evalSettings.pureEval && !input.isDirect())
input = lookupInRegistries(state.store, input).first;
@@ -96,7 +143,13 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
if (state.allowedPaths)
state.allowedPaths->insert(tree.actualPath);
- emitTreeAttrs(state, tree, input2, v);
+ emitTreeAttrs(state, tree, input2, v, emptyRevFallback);
+}
+
+static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, Value & v)
+{
+ settings.requireExperimentalFeature("flakes");
+ fetchTree(state, pos, args, v, std::nullopt);
}
static RegisterPrimOp r("fetchTree", 1, prim_fetchTree);
@@ -178,7 +231,13 @@ static void prim_fetchTarball(EvalState & state, const Pos & pos, Value * * args
fetch(state, pos, args, v, "fetchTarball", true, "source");
}
+static void prim_fetchGit(EvalState &state, const Pos &pos, Value **args, Value &v)
+{
+ fetchTree(state, pos, args, v, "git", true);
+}
+
static RegisterPrimOp r2("__fetchurl", 1, prim_fetchurl);
static RegisterPrimOp r3("fetchTarball", 1, prim_fetchTarball);
+static RegisterPrimOp r4("fetchGit", 1, prim_fetchGit);
}
diff --git a/src/libfetchers/fetchers.cc b/src/libfetchers/fetchers.cc
index c3ee9bf43..28db8aa9c 100644
--- a/src/libfetchers/fetchers.cc
+++ b/src/libfetchers/fetchers.cc
@@ -134,7 +134,7 @@ std::pair<Tree, Input> Input::fetch(ref<Store> store) const
if (auto prevNarHash = getNarHash()) {
if (narHash != *prevNarHash)
- throw Error("NAR hash mismatch in input '%s' (%s), expected '%s', got '%s'",
+ throw Error((unsigned int) 102, "NAR hash mismatch in input '%s' (%s), expected '%s', got '%s'",
to_string(), tree.actualPath, prevNarHash->to_string(SRI, true), narHash->to_string(SRI, true));
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 14:09:22 +0000