diff options
| -rw-r--r-- | doc/manual/command-ref/conf-file.xml | 7 | ||||
| -rw-r--r-- | src/libutil/config.cc | 26 | ||||
| -rw-r--r-- | tests/init.sh | 5 |
3 files changed, 36 insertions, 2 deletions
diff --git a/doc/manual/command-ref/conf-file.xml b/doc/manual/command-ref/conf-file.xml index 5c4561f66d86..8ed614963a4b 100644 --- a/doc/manual/command-ref/conf-file.xml +++ b/doc/manual/command-ref/conf-file.xml @@ -40,7 +40,12 @@ <para>The configuration files consist of <literal><replaceable>name</replaceable> = -<replaceable>value</replaceable></literal> pairs, one per line. +<replaceable>value</replaceable></literal> pairs, one per line. Other +files can be included with a line like <literal>include +<replaceable>path</replaceable></literal>, where +<replaceable>path</replaceable> is interpreted relative to the current +conf file and a missing file is an error unless +<literal>!include</literal> is used instead. Comments start with a <literal>#</literal> character. Here is an example configuration file:</para> diff --git a/src/libutil/config.cc b/src/libutil/config.cc index d46ca65a3863..0e502769edf8 100644 --- a/src/libutil/config.cc +++ b/src/libutil/config.cc @@ -80,7 +80,31 @@ void Config::applyConfigFile(const Path & path, bool fatal) vector<string> tokens = tokenizeString<vector<string> >(line); if (tokens.empty()) continue; - if (tokens.size() < 2 || tokens[1] != "=") + if (tokens.size() < 2) + throw UsageError("illegal configuration line '%1%' in '%2%'", line, path); + + auto include = false; + auto ignoreMissing = false; + if (tokens[0] == "include") + include = true; + else if (tokens[0] == "!include") { + include = true; + ignoreMissing = true; + } + + if (include) { + if (tokens.size() != 2) + throw UsageError("illegal configuration line '%1%' in '%2%'", line, path); + auto p = absPath(tokens[1], dirOf(path)); + if (pathExists(p)) { + applyConfigFile(p, fatal); + } else if (!ignoreMissing) { + throw Error("file '%1%' included from '%2%' not found", p, path); + } + continue; + } + + if (tokens[1] != "=") throw UsageError("illegal configuration line '%1%' in '%2%'", line, path); string name = tokens[0]; diff --git a/tests/init.sh b/tests/init.sh index 41cca047d8fb..e5353598bcc4 100644 --- a/tests/init.sh +++ b/tests/init.sh @@ -16,7 +16,12 @@ mkdir "$NIX_CONF_DIR" cat > "$NIX_CONF_DIR"/nix.conf <<EOF build-users-group = keep-derivations = false +include nix.conf.extra +EOF + +cat > "$NIX_CONF_DIR"/nix.conf.extra <<EOF fsync-metadata = false +!include nix.conf.extra.not-there EOF # Initialise the database. |