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Diffstat (limited to 'libbuild2/dist/init.cxx')
| -rw-r--r-- | libbuild2/dist/init.cxx | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/libbuild2/dist/init.cxx b/libbuild2/dist/init.cxx new file mode 100644 index 0000000..959b2dd --- /dev/null +++ b/libbuild2/dist/init.cxx @@ -0,0 +1,192 @@ +// file : libbuild2/dist/init.cxx -*- C++ -*- +// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#include <libbuild2/dist/init.hxx> + +#include <libbuild2/scope.hxx> +#include <libbuild2/file.hxx> +#include <libbuild2/diagnostics.hxx> + +#include <libbuild2/config/utility.hxx> + +#include <libbuild2/dist/rule.hxx> +#include <libbuild2/dist/module.hxx> +#include <libbuild2/dist/operation.hxx> + +using namespace std; +using namespace butl; + +namespace build2 +{ + namespace dist + { + static const rule rule_; + + bool + boot (scope& rs, const location&, unique_ptr<module_base>& mod) + { + tracer trace ("dist::boot"); + + l5 ([&]{trace << "for " << rs;}); + + // Register the meta-operation. + // + rs.insert_meta_operation (dist_id, mo_dist); + + // Enter module variables. Do it during boot in case they get assigned + // in bootstrap.build (which is customary for, e.g., dist.package). + // + auto& vp (var_pool.rw (rs)); + + // Note: some overridable, some not. + // + // config.dist.archives is a list of archive extensions (e.g., zip, + // tar.gz) that can be optionally prefixed with a directory. If it is + // relative, then it is prefixed with config.dist.root. Otherwise, the + // archive is written to the absolute location. + // + // config.dist.checksums is a list of archive checksum extensions (e.g., + // sha1, sha256) that can also be optionally prefixed with a directory + // with the same semantics as config.dist.archives. If the directory is + // absent, then the checksum file is written into the same directory as + // the corresponding archive. + // + vp.insert<abs_dir_path> ("config.dist.root", true); + vp.insert<paths> ("config.dist.archives", true); + vp.insert<paths> ("config.dist.checksums", true); + vp.insert<path> ("config.dist.cmd", true); + + // Allow distribution of uncommitted projects. This is enforced by the + // version module. + // + vp.insert<bool> ("config.dist.uncommitted", true); + + vp.insert<dir_path> ("dist.root"); + vp.insert<process_path> ("dist.cmd"); + vp.insert<paths> ("dist.archives"); + vp.insert<paths> ("dist.checksums"); + vp.insert<paths> ("dist.uncommitted"); + + vp.insert<bool> ("dist", variable_visibility::target); // Flag. + + // Project's package name. + // + auto& v_d_p ( + vp.insert<string> ("dist.package", variable_visibility::project)); + + // Create the module. + // + mod.reset (new module (v_d_p)); + + return false; + } + + bool + init (scope& rs, + scope&, + const location& l, + unique_ptr<module_base>&, + bool first, + bool, + const variable_map& config_hints) + { + tracer trace ("dist::init"); + + if (!first) + { + warn (l) << "multiple dist module initializations"; + return true; + } + + const dir_path& out_root (rs.out_path ()); + l5 ([&]{trace << "for " << out_root;}); + + assert (config_hints.empty ()); // We don't known any hints. + + // Register our wildcard rule. Do it explicitly for the alias to prevent + // something like insert<target>(dist_id, test_id) taking precedence. + // + rs.rules.insert<target> (dist_id, 0, "dist", rule_); + rs.rules.insert<alias> (dist_id, 0, "dist.alias", rule_); //@@ outer? + + // Configuration. + // + // Note that we don't use any defaults for root -- the location + // must be explicitly specified or we will complain if and when + // we try to dist. + // + bool s (config::specified (rs, "dist")); + + // Adjust module priority so that the config.dist.* values are saved at + // the end of config.build. + // + if (s) + config::save_module (rs, "dist", INT32_MAX); + + // dist.root + // + { + value& v (rs.assign ("dist.root")); + + if (s) + { + if (lookup l = config::optional (rs, "config.dist.root")) + v = cast<dir_path> (l); // Strip abs_dir_path. + } + } + + // dist.cmd + // + { + value& v (rs.assign<process_path> ("dist.cmd")); + + if (s) + { + if (lookup l = config::required (rs, + "config.dist.cmd", + path ("install")).first) + v = run_search (cast<path> (l), true); + } + } + + // dist.archives + // dist.checksums + // + { + value& a (rs.assign ("dist.archives")); + value& c (rs.assign ("dist.checksums")); + + if (s) + { + if (lookup l = config::optional (rs, "config.dist.archives")) + a = *l; + + if (lookup l = config::optional (rs, "config.dist.checksums")) + { + c = *l; + + if (!c.empty () && (!a || a.empty ())) + fail << "config.dist.checksums specified without " + << "config.dist.archives"; + + } + } + } + + // dist.uncommitted + // + // Omit it from the configuration unless specified. + // + config::omitted (rs, "config.dist.uncommitted"); + + return true; + } + + module_functions + build2_dist_load () + { + return module_functions {&boot, &init}; + } + } +} |