1 files changed, 223 insertions, 0 deletions
diff --git a/unit/atf-src/tools/config_file.cpp b/unit/atf-src/tools/config_file.cpp
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+++ b/unit/atf-src/tools/config_file.cpp
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+//
+// Automated Testing Framework (atf)
+//
+// Copyright (c) 2007 The NetBSD Foundation, Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
+// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#include <cstdlib>
+#include <fstream>
+#include <vector>
+
+#include "config.hpp"
+#include "config_file.hpp"
+#include "defs.hpp"
+#include "env.hpp"
+#include "fs.hpp"
+#include "parser.hpp"
+
+namespace impl = tools::config_file;
+namespace detail = tools::config_file::detail;
+
+namespace {
+
+typedef std::map< std::string, std::string > vars_map;
+
+namespace atf_config {
+
+static const tools::parser::token_type eof_type = 0;
+static const tools::parser::token_type nl_type = 1;
+static const tools::parser::token_type text_type = 2;
+static const tools::parser::token_type dblquote_type = 3;
+static const tools::parser::token_type equal_type = 4;
+static const tools::parser::token_type hash_type = 5;
+
+class tokenizer : public tools::parser::tokenizer< std::istream > {
+public:
+    tokenizer(std::istream& is, size_t curline) :
+        tools::parser::tokenizer< std::istream >
+            (is, true, eof_type, nl_type, text_type, curline)
+    {
+        add_delim('=', equal_type);
+        add_delim('#', hash_type);
+        add_quote('"', dblquote_type);
+    }
+};
+
+} // namespace atf_config
+
+class config_reader : public detail::atf_config_reader {
+    vars_map m_vars;
+
+    void
+    got_var(const std::string& var, const std::string& name)
+    {
+        m_vars[var] = name;
+    }
+
+public:
+    config_reader(std::istream& is) :
+        atf_config_reader(is)
+    {
+    }
+
+    const vars_map&
+    get_vars(void)
+        const
+    {
+        return m_vars;
+    }
+};
+
+template< class K, class V >
+static
+void
+merge_maps(std::map< K, V >& dest, const std::map< K, V >& src)
+{
+    for (typename std::map< K, V >::const_iterator iter = src.begin();
+         iter != src.end(); iter++)
+        dest[(*iter).first] = (*iter).second;
+}
+
+static
+void
+merge_config_file(const tools::fs::path& config_path,
+                  vars_map& config)
+{
+    std::ifstream is(config_path.c_str());
+    if (is) {
+        config_reader reader(is);
+        reader.read();
+        merge_maps(config, reader.get_vars());
+    }
+}
+
+static
+std::vector< tools::fs::path >
+get_config_dirs(void)
+{
+    std::vector< tools::fs::path > dirs;
+    dirs.push_back(tools::fs::path(tools::config::get("atf_confdir")));
+    if (tools::env::has("HOME"))
+        dirs.push_back(tools::fs::path(tools::env::get("HOME")) / ".atf");
+    return dirs;
+}
+
+} // anonymous namespace
+
+detail::atf_config_reader::atf_config_reader(std::istream& is) :
+    m_is(is)
+{
+}
+
+detail::atf_config_reader::~atf_config_reader(void)
+{
+}
+
+void
+detail::atf_config_reader::got_var(
+    const std::string& var ATF_DEFS_ATTRIBUTE_UNUSED,
+    const std::string& val ATF_DEFS_ATTRIBUTE_UNUSED)
+{
+}
+
+void
+detail::atf_config_reader::got_eof(void)
+{
+}
+
+void
+detail::atf_config_reader::read(void)
+{
+    using tools::parser::parse_error;
+    using namespace atf_config;
+
+    std::pair< size_t, tools::parser::headers_map > hml =
+        tools::parser::read_headers(m_is, 1);
+    tools::parser::validate_content_type(hml.second,
+        "application/X-atf-config", 1);
+
+    tokenizer tkz(m_is, hml.first);
+    tools::parser::parser< tokenizer > p(tkz);
+
+    for (;;) {
+        try {
+            tools::parser::token t = p.expect(eof_type, hash_type, text_type,
+                                              nl_type,
+                                              "eof, #, new line or text");
+            if (t.type() == eof_type)
+                break;
+
+            if (t.type() == hash_type) {
+                (void)p.rest_of_line();
+                t = p.expect(nl_type, "new line");
+            } else if (t.type() == text_type) {
+                std::string name = t.text();
+
+                t = p.expect(equal_type, "equal sign");
+
+                t = p.expect(text_type, "word or quoted string");
+                ATF_PARSER_CALLBACK(p, got_var(name, t.text()));
+
+                t = p.expect(nl_type, hash_type, "new line or comment");
+                if (t.type() == hash_type) {
+                    (void)p.rest_of_line();
+                    t = p.expect(nl_type, "new line");
+                }
+            } else if (t.type() == nl_type) {
+            } else
+                std::abort();
+        } catch (const parse_error& pe) {
+            p.add_error(pe);
+            p.reset(nl_type);
+        }
+    }
+
+    ATF_PARSER_CALLBACK(p, got_eof());
+}
+
+vars_map
+impl::merge_configs(const vars_map& lower,
+                    const vars_map& upper)
+{
+    vars_map merged = lower;
+    merge_maps(merged, upper);
+    return merged;
+}
+
+vars_map
+impl::read_config_files(const std::string& test_suite_name)
+{
+    vars_map config;
+
+    const std::vector< tools::fs::path > dirs = get_config_dirs();
+    for (std::vector< tools::fs::path >::const_iterator iter = dirs.begin();
+         iter != dirs.end(); iter++) {
+        merge_config_file((*iter) / "common.conf", config);
+        merge_config_file((*iter) / (test_suite_name + ".conf"), config);
+    }
+
+    return config;
+}