diff options
| -rw-r--r-- | doc/manual/src/language/values.md | 14 | ||||
| -rw-r--r-- | src/libfetchers/git.cc | 4 | ||||
| -rw-r--r-- | src/nix/app.cc | 4 | ||||
| -rw-r--r-- | tests/fetchGit.sh | 12 |
4 files changed, 33 insertions, 1 deletions
diff --git a/doc/manual/src/language/values.md b/doc/manual/src/language/values.md index f09400d02..6fc8c0369 100644 --- a/doc/manual/src/language/values.md +++ b/doc/manual/src/language/values.md @@ -150,6 +150,20 @@ recognized as a path. `a.${foo}/b.${bar}` is a syntactically valid division operation. `./a.${foo}/b.${bar}` is a path. + When a path appears in an antiquotation, and is thus coerced into a string, + the path is first copied into the Nix store and the resulting string is + the Nix store path. For instance `"${./foo.txt}" will cause `foo.txt` in + the current directory to be copied into the Nix store and result in the + string `"/nix/store/<HASH>-foo.txt"`. + + Note that the Nix language assumes that all input files will remain + _unchanged_ during the course of the Nix expression evaluation. + If you for example antiquote a file path during a `nix repl` session, and + then later in the same session, after having changed the file contents, + evaluate the antiquotation with the file path again, then Nix will still + return the first store path. It will _not_ reread the file contents to + produce a different Nix store path. + - <a id="type-boolean" href="#type-boolean">Boolean</a> *Booleans* with values `true` and `false`. diff --git a/src/libfetchers/git.cc b/src/libfetchers/git.cc index c1a21e764..7b7a1be35 100644 --- a/src/libfetchers/git.cc +++ b/src/libfetchers/git.cc @@ -485,6 +485,10 @@ struct GitInputScheme : InputScheme } input.attrs.insert_or_assign("ref", *head); unlockedAttrs.insert_or_assign("ref", *head); + } else { + if (!input.getRev()) { + unlockedAttrs.insert_or_assign("ref", input.getRef().value()); + } } if (auto res = getCache()->lookup(store, unlockedAttrs)) { diff --git a/src/nix/app.cc b/src/nix/app.cc index 821964f86..48de8fb82 100644 --- a/src/nix/app.cc +++ b/src/nix/app.cc @@ -66,7 +66,9 @@ UnresolvedApp Installable::toApp(EvalState & state) auto type = cursor->getAttr("type")->getString(); - std::string expected = !attrPath.empty() && state.symbols[attrPath[0]] == "apps" ? "app" : "derivation"; + std::string expected = !attrPath.empty() && + (state.symbols[attrPath[0]] == "apps" || state.symbols[attrPath[0]] == "defaultApp") + ? "app" : "derivation"; if (type != expected) throw Error("attribute '%s' should have type '%s'", cursor->getAttrPathStr(), expected); diff --git a/tests/fetchGit.sh b/tests/fetchGit.sh index 166bccfc7..4ceba0293 100644 --- a/tests/fetchGit.sh +++ b/tests/fetchGit.sh @@ -24,12 +24,14 @@ touch $repo/.gitignore git -C $repo add hello .gitignore git -C $repo commit -m 'Bla1' rev1=$(git -C $repo rev-parse HEAD) +git -C $repo tag -a tag1 -m tag1 echo world > $repo/hello git -C $repo commit -m 'Bla2' -a git -C $repo worktree add $TEST_ROOT/worktree echo hello >> $TEST_ROOT/worktree/hello rev2=$(git -C $repo rev-parse HEAD) +git -C $repo tag -a tag2 -m tag2 # Fetch a worktree unset _NIX_FORCE_HTTP @@ -217,6 +219,16 @@ rev4_nix=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$ path9=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"HEAD\"; name = \"foo\"; }).outPath") [[ $path9 =~ -foo$ ]] +# Specifying a ref without a rev shouldn't pick a cached rev for a different ref +export _NIX_FORCE_HTTP=1 +rev_tag1_nix=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"refs/tags/tag1\"; }).rev") +rev_tag1=$(git -C $repo rev-parse refs/tags/tag1) +[[ $rev_tag1_nix = $rev_tag1 ]] +rev_tag2_nix=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"refs/tags/tag2\"; }).rev") +rev_tag2=$(git -C $repo rev-parse refs/tags/tag2) +[[ $rev_tag2_nix = $rev_tag2 ]] +unset _NIX_FORCE_HTTP + # should fail if there is no repo rm -rf $repo/.git (! nix eval --impure --raw --expr "(builtins.fetchGit \"file://$repo\").outPath") |