diff options
Diffstat (limited to 'libbuild2/build/script')
| -rw-r--r-- | libbuild2/build/script/builtin-options.cxx | 83 | ||||
| -rw-r--r-- | libbuild2/build/script/builtin-options.hxx | 35 | ||||
| -rw-r--r-- | libbuild2/build/script/builtin-options.ixx | 102 | ||||
| -rw-r--r-- | libbuild2/build/script/builtin.cli | 30 | ||||
| -rw-r--r-- | libbuild2/build/script/parser.cxx | 214 | ||||
| -rw-r--r-- | libbuild2/build/script/parser.hxx | 60 | ||||
| -rw-r--r-- | libbuild2/build/script/script.hxx | 3 |
7 files changed, 368 insertions, 159 deletions
diff --git a/libbuild2/build/script/builtin-options.cxx b/libbuild2/build/script/builtin-options.cxx index cf99b12..f66fe47 100644 --- a/libbuild2/build/script/builtin-options.cxx +++ b/libbuild2/build/script/builtin-options.cxx @@ -397,11 +397,11 @@ namespace build2 { namespace script { - // depdb_dep_options + // depdb_dyndep_options // - depdb_dep_options:: - depdb_dep_options () + depdb_dyndep_options:: + depdb_dyndep_options () : file_ (), file_specified_ (false), format_ (), @@ -410,12 +410,14 @@ namespace build2 what_specified_ (false), include_path_ (), include_path_specified_ (false), - default_prereq_type_ (), - default_prereq_type_specified_ (false) + default_type_ (), + default_type_specified_ (false), + cwd_ (), + cwd_specified_ (false) { } - bool depdb_dep_options:: + bool depdb_dyndep_options:: parse (int& argc, char** argv, bool erase, @@ -427,7 +429,7 @@ namespace build2 return r; } - bool depdb_dep_options:: + bool depdb_dyndep_options:: parse (int start, int& argc, char** argv, @@ -440,7 +442,7 @@ namespace build2 return r; } - bool depdb_dep_options:: + bool depdb_dyndep_options:: parse (int& argc, char** argv, int& end, @@ -454,7 +456,7 @@ namespace build2 return r; } - bool depdb_dep_options:: + bool depdb_dyndep_options:: parse (int start, int& argc, char** argv, @@ -469,7 +471,7 @@ namespace build2 return r; } - bool depdb_dep_options:: + bool depdb_dyndep_options:: parse (::build2::build::script::cli::scanner& s, ::build2::build::script::cli::unknown_mode opt, ::build2::build::script::cli::unknown_mode arg) @@ -479,44 +481,47 @@ namespace build2 } typedef - std::map<std::string, void (*) (depdb_dep_options&, ::build2::build::script::cli::scanner&)> - _cli_depdb_dep_options_map; + std::map<std::string, void (*) (depdb_dyndep_options&, ::build2::build::script::cli::scanner&)> + _cli_depdb_dyndep_options_map; - static _cli_depdb_dep_options_map _cli_depdb_dep_options_map_; + static _cli_depdb_dyndep_options_map _cli_depdb_dyndep_options_map_; - struct _cli_depdb_dep_options_map_init + struct _cli_depdb_dyndep_options_map_init { - _cli_depdb_dep_options_map_init () - { - _cli_depdb_dep_options_map_["--file"] = - &::build2::build::script::cli::thunk< depdb_dep_options, path, &depdb_dep_options::file_, - &depdb_dep_options::file_specified_ >; - _cli_depdb_dep_options_map_["--format"] = - &::build2::build::script::cli::thunk< depdb_dep_options, string, &depdb_dep_options::format_, - &depdb_dep_options::format_specified_ >; - _cli_depdb_dep_options_map_["--what"] = - &::build2::build::script::cli::thunk< depdb_dep_options, string, &depdb_dep_options::what_, - &depdb_dep_options::what_specified_ >; - _cli_depdb_dep_options_map_["--include-path"] = - &::build2::build::script::cli::thunk< depdb_dep_options, dir_paths, &depdb_dep_options::include_path_, - &depdb_dep_options::include_path_specified_ >; - _cli_depdb_dep_options_map_["-I"] = - &::build2::build::script::cli::thunk< depdb_dep_options, dir_paths, &depdb_dep_options::include_path_, - &depdb_dep_options::include_path_specified_ >; - _cli_depdb_dep_options_map_["--default-prereq-type"] = - &::build2::build::script::cli::thunk< depdb_dep_options, string, &depdb_dep_options::default_prereq_type_, - &depdb_dep_options::default_prereq_type_specified_ >; + _cli_depdb_dyndep_options_map_init () + { + _cli_depdb_dyndep_options_map_["--file"] = + &::build2::build::script::cli::thunk< depdb_dyndep_options, path, &depdb_dyndep_options::file_, + &depdb_dyndep_options::file_specified_ >; + _cli_depdb_dyndep_options_map_["--format"] = + &::build2::build::script::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::format_, + &depdb_dyndep_options::format_specified_ >; + _cli_depdb_dyndep_options_map_["--what"] = + &::build2::build::script::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::what_, + &depdb_dyndep_options::what_specified_ >; + _cli_depdb_dyndep_options_map_["--include-path"] = + &::build2::build::script::cli::thunk< depdb_dyndep_options, dir_paths, &depdb_dyndep_options::include_path_, + &depdb_dyndep_options::include_path_specified_ >; + _cli_depdb_dyndep_options_map_["-I"] = + &::build2::build::script::cli::thunk< depdb_dyndep_options, dir_paths, &depdb_dyndep_options::include_path_, + &depdb_dyndep_options::include_path_specified_ >; + _cli_depdb_dyndep_options_map_["--default-type"] = + &::build2::build::script::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::default_type_, + &depdb_dyndep_options::default_type_specified_ >; + _cli_depdb_dyndep_options_map_["--cwd"] = + &::build2::build::script::cli::thunk< depdb_dyndep_options, dir_path, &depdb_dyndep_options::cwd_, + &depdb_dyndep_options::cwd_specified_ >; } }; - static _cli_depdb_dep_options_map_init _cli_depdb_dep_options_map_init_; + static _cli_depdb_dyndep_options_map_init _cli_depdb_dyndep_options_map_init_; - bool depdb_dep_options:: + bool depdb_dyndep_options:: _parse (const char* o, ::build2::build::script::cli::scanner& s) { - _cli_depdb_dep_options_map::const_iterator i (_cli_depdb_dep_options_map_.find (o)); + _cli_depdb_dyndep_options_map::const_iterator i (_cli_depdb_dyndep_options_map_.find (o)); - if (i != _cli_depdb_dep_options_map_.end ()) + if (i != _cli_depdb_dyndep_options_map_.end ()) { (*(i->second)) (*this, s); return true; @@ -525,7 +530,7 @@ namespace build2 return false; } - bool depdb_dep_options:: + bool depdb_dyndep_options:: _parse (::build2::build::script::cli::scanner& s, ::build2::build::script::cli::unknown_mode opt_mode, ::build2::build::script::cli::unknown_mode arg_mode) diff --git a/libbuild2/build/script/builtin-options.hxx b/libbuild2/build/script/builtin-options.hxx index 85d67b9..15119f4 100644 --- a/libbuild2/build/script/builtin-options.hxx +++ b/libbuild2/build/script/builtin-options.hxx @@ -297,10 +297,10 @@ namespace build2 { namespace script { - class depdb_dep_options + class depdb_dyndep_options { public: - depdb_dep_options (); + depdb_dyndep_options (); // Return true if anything has been parsed. // @@ -404,19 +404,34 @@ namespace build2 include_path_specified (bool); const string& - default_prereq_type () const; + default_type () const; string& - default_prereq_type (); + default_type (); void - default_prereq_type (const string&); + default_type (const string&); bool - default_prereq_type_specified () const; + default_type_specified () const; void - default_prereq_type_specified (bool); + default_type_specified (bool); + + const dir_path& + cwd () const; + + dir_path& + cwd (); + + void + cwd (const dir_path&); + + bool + cwd_specified () const; + + void + cwd_specified (bool); // Implementation details. // @@ -439,8 +454,10 @@ namespace build2 bool what_specified_; dir_paths include_path_; bool include_path_specified_; - string default_prereq_type_; - bool default_prereq_type_specified_; + string default_type_; + bool default_type_specified_; + dir_path cwd_; + bool cwd_specified_; }; } } diff --git a/libbuild2/build/script/builtin-options.ixx b/libbuild2/build/script/builtin-options.ixx index 06575c8..c6266d0 100644 --- a/libbuild2/build/script/builtin-options.ixx +++ b/libbuild2/build/script/builtin-options.ixx @@ -176,157 +176,187 @@ namespace build2 { namespace script { - // depdb_dep_options + // depdb_dyndep_options // - inline const path& depdb_dep_options:: + inline const path& depdb_dyndep_options:: file () const { return this->file_; } - inline path& depdb_dep_options:: + inline path& depdb_dyndep_options:: file () { return this->file_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: file (const path& x) { this->file_ = x; } - inline bool depdb_dep_options:: + inline bool depdb_dyndep_options:: file_specified () const { return this->file_specified_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: file_specified (bool x) { this->file_specified_ = x; } - inline const string& depdb_dep_options:: + inline const string& depdb_dyndep_options:: format () const { return this->format_; } - inline string& depdb_dep_options:: + inline string& depdb_dyndep_options:: format () { return this->format_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: format (const string& x) { this->format_ = x; } - inline bool depdb_dep_options:: + inline bool depdb_dyndep_options:: format_specified () const { return this->format_specified_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: format_specified (bool x) { this->format_specified_ = x; } - inline const string& depdb_dep_options:: + inline const string& depdb_dyndep_options:: what () const { return this->what_; } - inline string& depdb_dep_options:: + inline string& depdb_dyndep_options:: what () { return this->what_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: what (const string& x) { this->what_ = x; } - inline bool depdb_dep_options:: + inline bool depdb_dyndep_options:: what_specified () const { return this->what_specified_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: what_specified (bool x) { this->what_specified_ = x; } - inline const dir_paths& depdb_dep_options:: + inline const dir_paths& depdb_dyndep_options:: include_path () const { return this->include_path_; } - inline dir_paths& depdb_dep_options:: + inline dir_paths& depdb_dyndep_options:: include_path () { return this->include_path_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: include_path (const dir_paths& x) { this->include_path_ = x; } - inline bool depdb_dep_options:: + inline bool depdb_dyndep_options:: include_path_specified () const { return this->include_path_specified_; } - inline void depdb_dep_options:: + inline void depdb_dyndep_options:: include_path_specified (bool x) { this->include_path_specified_ = x; } - inline const string& depdb_dep_options:: - default_prereq_type () const + inline const string& depdb_dyndep_options:: + default_type () const { - return this->default_prereq_type_; + return this->default_type_; } - inline string& depdb_dep_options:: - default_prereq_type () + inline string& depdb_dyndep_options:: + default_type () { - return this->default_prereq_type_; + return this->default_type_; } - inline void depdb_dep_options:: - default_prereq_type (const string& x) + inline void depdb_dyndep_options:: + default_type (const string& x) { - this->default_prereq_type_ = x; + this->default_type_ = x; } - inline bool depdb_dep_options:: - default_prereq_type_specified () const + inline bool depdb_dyndep_options:: + default_type_specified () const { - return this->default_prereq_type_specified_; + return this->default_type_specified_; } - inline void depdb_dep_options:: - default_prereq_type_specified (bool x) + inline void depdb_dyndep_options:: + default_type_specified (bool x) { - this->default_prereq_type_specified_ = x; + this->default_type_specified_ = x; + } + + inline const dir_path& depdb_dyndep_options:: + cwd () const + { + return this->cwd_; + } + + inline dir_path& depdb_dyndep_options:: + cwd () + { + return this->cwd_; + } + + inline void depdb_dyndep_options:: + cwd (const dir_path& x) + { + this->cwd_ = x; + } + + inline bool depdb_dyndep_options:: + cwd_specified () const + { + return this->cwd_specified_; + } + + inline void depdb_dyndep_options:: + cwd_specified (bool x) + { + this->cwd_specified_ = x; } } } diff --git a/libbuild2/build/script/builtin.cli b/libbuild2/build/script/builtin.cli index 3ed3659..fafb330 100644 --- a/libbuild2/build/script/builtin.cli +++ b/libbuild2/build/script/builtin.cli @@ -15,17 +15,33 @@ namespace build2 { // Pseudo-builtin options. // - class depdb_dep_options + class depdb_dyndep_options { // Note that --byproduct, if any, must be the first option and is // handled ad hoc, kind of as a sub-command. // - path --file; // Read from file rather than stdin. - string --format; // Dependency format: make (default). - string --what; // Dependency kind, e.g., "header". - dir_paths --include-path|-I; // Search paths for generated files. - string --default-prereq-type; // Default prerequisite type to use - // if none could be derived from ext. + // Note that in the future we may extend --cwd support to the non- + // byproduct mode where it will also have the `env --cwd` semantics + // (thus the matching name). Note that it will also be incompatible + // with support for generated files (and thus -I) at least in the make + // format where we use relative paths for non-existent files. + // + // Note on naming: whenever we (may) have two options, one for target + // and the other for prerequisite, we omit "prerequisite" as that's + // what we extract by default and most commonly. For example: + // + // --what --what-target + // --default-type --default-target-type + // + path --file; // Read from file rather than stdin. + string --format; // Dependency format: make (default). + string --what; // Dependency kind, e.g., "header". + dir_paths --include-path|-I; // Search paths for generated files. + string --default-type; // Default prerequisite type to use + // if none could be derived from ext. + dir_path --cwd; // Builtin's working directory used + // to complete relative paths (only + // in --byproduct mode). }; } } diff --git a/libbuild2/build/script/parser.cxx b/libbuild2/build/script/parser.cxx index 67dbf69..15545cf 100644 --- a/libbuild2/build/script/parser.cxx +++ b/libbuild2/build/script/parser.cxx @@ -135,7 +135,10 @@ namespace build2 // s.depdb_clear = depdb_clear_.has_value (); if (depdb_dyndep_) + { s.depdb_dyndep = depdb_dyndep_->second; + s.depdb_dyndep_byproduct = depdb_dyndep_byproduct_; + } s.depdb_preamble = move (depdb_preamble_); return s; @@ -548,7 +551,7 @@ namespace build2 } else { - // Verify depdb-dyndep is last. + // Verify depdb-dyndep is last and detect the byproduct flavor. // if (v == "dyndep") { @@ -563,10 +566,8 @@ namespace build2 fail (l) << "multiple 'depdb dyndep' calls" << info (depdb_dyndep_->first) << "previous call is here"; -#if 0 if (peek () == type::word && peeked ().value == "--byproduct") - ; -#endif + depdb_dyndep_byproduct_ = true; } else { @@ -933,7 +934,8 @@ namespace build2 depdb& dd, bool* update, bool* deferred_failure, - optional<timestamp> mt) + optional<timestamp> mt, + dyndep_byproduct* byp) { tracer trace ("exec_depdb_preamble"); @@ -961,8 +963,9 @@ namespace build2 bool* update; bool* deferred_failure; optional<timestamp> mt; + dyndep_byproduct* byp; - } data {trace, a, bs, t, e, s, dd, update, deferred_failure, mt}; + } data {trace, a, bs, t, e, s, dd, update, deferred_failure, mt, byp}; auto exec_cmd = [this, &data] (token& t, build2::script::token_type& tt, @@ -986,7 +989,8 @@ namespace build2 if (cmd == "dyndep") { - // Note: cast is safe since this is always executed in apply(). + // Note: the cast is safe since the part where the target is + // modified is always executed in apply(). // exec_depdb_dyndep (t, tt, li, ll, @@ -994,7 +998,8 @@ namespace build2 data.dd, *data.update, *data.deferred_failure, - *data.mt); + *data.mt, + data.byp); } else { @@ -1207,7 +1212,8 @@ namespace build2 depdb& dd, bool& update, bool& deferred_failure, - timestamp mt) + timestamp mt, + dyndep_byproduct* byprod_result) { tracer trace ("exec_depdb_dyndep"); @@ -1215,13 +1221,22 @@ namespace build2 // Similar approach to parse_env_builtin(). // - depdb_dep_options ops; + depdb_dyndep_options ops; bool prog (false); + bool byprod (false); { auto& t (lt); auto& tt (ltt); - next (t, tt); // Skip 'dep' command. + next (t, tt); // Skip the 'dyndep' command. + + if (tt == type::word && t.value == "--byproduct") + { + byprod = true; + next (t, tt); + } + + assert (byprod == (byprod_result != nullptr)); // Note that an option name and value can belong to different name // chunks. That's why we parse the arguments in the chunking mode @@ -1273,6 +1288,10 @@ namespace build2 if (prog) { + if (byprod) + fail (t) << "depdb dyndep: --byproduct cannot be used with " + << "program"; + next (t, tt); // Skip '--'. if (tt == type::newline || tt == type::eos) @@ -1311,12 +1330,10 @@ namespace build2 continue; } -#if 0 // Handle --byproduct in the wrong place. // if (strcmp (a, "--byproduct") == 0) fail (ll) << "depdb dyndep: --byproduct must be first option"; -#endif // Handle unknown option. // @@ -1334,6 +1351,64 @@ namespace build2 } } + // --what + // + const char* what (ops.what_specified () + ? ops.what ().c_str () + : "file"); + + // --format + // + dyndep_format format (dyndep_format::make); + + if (ops.format_specified ()) + { + const string& f (ops.format ()); + + if (f != "make") + fail (ll) << "depdb dyndep: invalid --format option value '" + << f << "'"; + } + + // --cwd + // + optional<dir_path> cwd; + + if (ops.cwd_specified ()) + { + if (!byprod) + fail (ll) << "depdb dyndep: --cwd only valid in --byproduct mode"; + + cwd = move (ops.cwd ()); + + if (cwd->relative ()) + fail (ll) << "depdb dyndep: relative path specified with --cwd"; + } + + // --file + // + // Note that if --file is specified without a program, then we assume + // it is one of the static prerequisites. + // + optional<path> file; + + if (ops.file_specified ()) + { + file = move (ops.file ()); + + if (file->relative ()) + { + if (!cwd) + fail (ll) << "depdb dyndep: relative path specified with --file"; + + *file = *cwd / *file; + } + } + else if (!prog) + fail (ll) << "depdb dyndep: program or --file expected"; + + // --default-type + // // Get the default prerequisite type falling back to file{} if not // specified. // @@ -1344,17 +1419,34 @@ namespace build2 // system headers to h{} targets analogous to the c module's rule. // const target_type* def_pt; - if (ops.default_prereq_type_specified ()) + if (ops.default_type_specified ()) { - const string& t (ops.default_prereq_type ()); + const string& t (ops.default_type ()); def_pt = bs.find_target_type (t); if (def_pt == nullptr) - fail (ll) << "unknown target type '" << t << "'"; + fail (ll) << "unknown target type '" << t << "' specific with " + << "--default-type"; } else def_pt = &file::static_type; + if (byprod) + { + if (!ops.include_path ().empty ()) + fail (ll) << "depdb dyndep: -I specified with --byproduct"; + + *byprod_result = dyndep_byproduct { + ll, + format, + move (cwd), + move (*file), + ops.what_specified () ? move (ops.what ()) : string (what), + def_pt}; + + return; + } + // This code is based on the prior work in the cc module (specifically // extract_headers()) where you can often find more detailed rationale // for some of the steps performed. @@ -1369,6 +1461,8 @@ namespace build2 function<dyndep::map_extension_func> map_ext ( [] (const scope& bs, const string& n, const string& e) { + // NOTE: another version in adhoc_buildscript_rule::apply(). + // @@ TODO: allow specifying base target types. // // Feels like the only reason one would want to specify base types @@ -1403,7 +1497,7 @@ namespace build2 { tracer& trace; const location& ll; - const depdb_dep_options& ops; + const depdb_dyndep_options& ops; optional<prefix_map> map; } pfx_data {trace, ll, ops, nullopt}; @@ -1440,11 +1534,6 @@ namespace build2 }; } - optional<path> file; - enum class format {make} fmt (format::make); - command_expr cmd; - srcout_map so_map; - // Parse the remainder of the command line as a program (which can be // a pipe). If file is absent, then we save the command's stdout to a // pipe. Otherwise, assume the command writes to file and add it to @@ -1454,31 +1543,13 @@ namespace build2 // could do other broken tools). However, the user can always merge // stderr to stdout (2>&1). // + command_expr cmd; + srcout_map so_map; + auto init_run = [this, &ctx, <, <t, &ll, - &ops, prog, &file, &cmd, &so_map] () + prog, &file, &ops, &cmd, &so_map] () { - // --format - // - if (ops.format_specified ()) - { - const string& f (ops.format ()); - - if (f != "make") - fail (ll) << "depdb dyndep: invalid --format option value '" - << f << "'"; - } - - // --file - // - if (ops.file_specified ()) - { - file = move (ops.file ()); - - if (file->relative ()) - fail (ll) << "depdb dyndep: relative path specified with --file"; - } - // Populate the srcout map with the -I$out_base -I$src_base pairs. // { @@ -1515,25 +1586,20 @@ namespace build2 {build2::script::cleanup_type::always, *file}, true /* implicit */); } - else - { - // Assume file is one of the prerequisites. - // - if (!file) - fail (ll) << "depdb dyndep: program or --file expected"; - } }; // Enter as a target, update, and add to the list of prerequisite // targets a file. // - const char* what (ops.what_specified () - ? ops.what ().c_str () - : "file"); - + // Note that these targets don't end up in $< (which is the right + // thing) because that variable has already been initialized (in the + // environment ctor). + // size_t skip_count (0); + auto& pts (t.prerequisite_targets[a]); + auto add = [this, &trace, what, - a, &bs, &t, + a, &bs, &t, &pts, pts_n = pts.size (), &map_ext, def_pt, &pfx_map, &so_map, &dd, &skip_count] (path fp, bool cache, @@ -1567,16 +1633,38 @@ namespace build2 if (const build2::file* ft = dyndep::enter_file ( trace, what, a, bs, t, - move (fp), cache, false /* normalize */, + fp, cache, cache /* normalized */, map_ext, *def_pt, pfx_map, so_map).first) { + // Skip if this is one of the static prerequisites. + // + for (size_t i (0); i != pts_n; ++i) + { + const prerequisite_target& p (pts[i]); + + if (const target* pt = + (p.target != nullptr ? p.target : + p.data != 0 ? reinterpret_cast<target*> (p.data) : + nullptr)) + { + if (pt == ft) + { + // Note that we have to increment the skip count since we + // skip before performing this test. + // + skip_count++; + return false; + } + } + } + if (optional<bool> u = dyndep::inject_file ( trace, what, a, t, *ft, mt, false /* fail */)) { if (!cache) - dd.expect (ft->path ()); + dd.expect (ft->path ()); // @@ Use fp (or verify match)? skip_count++; return *u; @@ -1721,14 +1809,16 @@ namespace build2 : path_name ("<stdin>")); location il (in, 1); + size_t skip (skip_count); // The way we parse things is format-specific. // - size_t skip (skip_count); - - switch (fmt) + // Note: similar code in + // adhoc_buildscript_rule::perform_update_file_dyndep_byproduct(). + // + switch (format) { - case format::make: + case dyndep_format::make: { using make_state = make_parser; using make_type = make_parser::type; diff --git a/libbuild2/build/script/parser.hxx b/libbuild2/build/script/parser.hxx index da15509..bbdb052 100644 --- a/libbuild2/build/script/parser.hxx +++ b/libbuild2/build/script/parser.hxx @@ -127,6 +127,46 @@ namespace build2 dd, &update, &deferred_failure, mt); } + // This version doesn't actually execute the depdb-dyndep builtin (but + // may execute some variable assignments) instead returning all the + // information (extracted from options) necessary to implement the + // depdb-dyndep --byproduct logic (which fits better into the rule + // implementation). + // + enum class dyndep_format {make}; + + struct dyndep_byproduct + { + location_value location; + dyndep_format format; + optional<dir_path> cwd; + path file; + string what; + const target_type* default_type; + }; + + dyndep_byproduct + execute_depdb_preamble_dyndep_byproduct ( + action a, const scope& base, const file& t, + environment& e, const script& s, runner& r, + depdb& dd) + { + // This is getting really ugly (we also don't really need to pass + // depdb here). One day we will find a better way... + // + bool update, deferred_failure; // Dymmy. + timestamp mt; // Dummy. + + dyndep_byproduct v; + exec_depdb_preamble ( + a, base, t, + e, s, r, + s.depdb_preamble.begin () + *s.depdb_dyndep, + s.depdb_preamble.end (), + dd, &update, &deferred_failure, mt, &v); + return v; + } + // Parse a special builtin line into names, performing the variable // and pattern expansions. If omit_builtin is true, then omit the // builtin name from the result. @@ -166,7 +206,8 @@ namespace build2 depdb&, bool* update = nullptr, bool* deferred_failure = nullptr, - optional<timestamp> mt = nullopt); + optional<timestamp> mt = nullopt, + dyndep_byproduct* = nullptr); void exec_depdb_dyndep (token&, build2::script::token_type&, @@ -175,7 +216,8 @@ namespace build2 depdb&, bool& update, bool& deferred_failure, - timestamp); + timestamp, + dyndep_byproduct*); // Helpers. // @@ -274,13 +316,21 @@ namespace build2 // depdb env <var-names> - Track the environment variables change as a // hash. // - // depdb dyndep ... - Extract dynamic dependency information. - // Can only be the last depdb builtin call - // in the preamble. + // depdb dyndep ... - Extract dynamic dependency information. Can + // only be the last depdb builtin call in the + // preamble. Note that such dependencies don't + // end up in $<. We also don't cause clean of + // such dependencies (since there may be no .d + // file) -- they should also be listed as + // static prerequisites of some other target + // (e.g., lib{} for headers) or a custom clean + // recipe should be provided. + // // optional<location> depdb_clear_; // depdb-clear location. optional<pair<location, size_t>> depdb_dyndep_; // depdb-dyndep location/position. + bool depdb_dyndep_byproduct_ = false; // --byproduct lines depdb_preamble_; // Note: excluding depdb-clear. // If present, the first impure function called in the body of the diff --git a/libbuild2/build/script/script.hxx b/libbuild2/build/script/script.hxx index 9d7567c..4e88785 100644 --- a/libbuild2/build/script/script.hxx +++ b/libbuild2/build/script/script.hxx @@ -75,7 +75,8 @@ namespace build2 // script parser for details). // bool depdb_clear; - optional<size_t> depdb_dyndep; // Position of first depdb-dyndep. + optional<size_t> depdb_dyndep; // Pos of first dyndep. + bool depdb_dyndep_byproduct = false; // dyndep --byproduct lines_type depdb_preamble; bool depdb_preamble_temp_dir = false; // True if refs $~. |