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-rw-r--r--build/b.cxx855
1 files changed, 0 insertions, 855 deletions
diff --git a/build/b.cxx b/build/b.cxx
deleted file mode 100644
index d72fdfb..0000000
--- a/build/b.cxx
+++ /dev/null
@@ -1,855 +0,0 @@
-// file : build/b.cxx -*- C++ -*-
-// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
-// license : MIT; see accompanying LICENSE file
-
-#include <time.h> // tzset()
-#include <string.h> // strerror()
-
-#include <stdlib.h> // getenv()
-#include <unistd.h> // getuid()
-#include <sys/types.h> // uid_t
-#include <pwd.h> // struct passwd, getpwuid()
-
-#include <sstream>
-#include <cassert>
-#include <typeinfo>
-#include <iostream>
-#include <system_error>
-
-#include <butl/filesystem>
-
-#include <build/version>
-
-#include <build/types>
-#include <build/spec>
-#include <build/operation>
-#include <build/scope>
-#include <build/target>
-#include <build/prerequisite>
-#include <build/rule>
-#include <build/file>
-#include <build/module>
-#include <build/algorithm>
-#include <build/diagnostics>
-#include <build/context>
-#include <build/utility>
-#include <build/variable>
-
-#include <build/token>
-#include <build/lexer>
-#include <build/parser>
-
-#include <build/options>
-
-using namespace std;
-
-#include <build/config/module>
-#include <build/dist/module>
-#include <build/bin/module>
-#include <build/cxx/module>
-#include <build/cli/module>
-#include <build/test/module>
-#include <build/install/module>
-
-using namespace build;
-
-int
-main (int argc, char* argv[])
-{
- try
- {
- tracer trace ("main");
-
- cl::argv_scanner scan (argc, argv, true);
- options ops (scan);
-
- // Version.
- //
- if (ops.version ())
- {
- cout << "build2 " << BUILD_VERSION_STR<< endl
- << "libbutl " << LIBBUTL_VERSION_STR << endl
- << "Copyright (c) 2014-2015 Code Synthesis Ltd" << endl
- << "This is free software released under the MIT license." << endl;
- return 0;
- }
-
- // Help.
- //
- if (ops.help ())
- {
- ostream& o (cout);
-
- o << "Usage: " << argv[0] << " [options] [variables] [buildspec]" << endl
- << "Options:" << endl;
-
- options::print_usage (o);
- return 0;
- }
-
- // Diagnostics verbosity.
- //
- verb = ops.verbose_specified ()
- ? ops.verbose ()
- : ops.v () ? 2 : ops.q () ? 0 : 1;
-
- // Initialize time conversion data that is used by localtime_r().
- //
- tzset ();
-
- // Register builtin modules.
- //
- builtin_modules["config"] = module_functions {&config::config_boot,
- &config::config_init};
- builtin_modules["dist"] = module_functions {&dist::dist_boot,
- &dist::dist_init};
- builtin_modules["test"] = module_functions {&test::test_boot,
- &test::test_init};
- builtin_modules["install"] = module_functions {&install::install_boot,
- &install::install_init};
-
- builtin_modules["bin"] = module_functions {nullptr, &bin::bin_init};
- builtin_modules["cxx"] = module_functions {nullptr, &cxx::cxx_init};
- builtin_modules["cli"] = module_functions {nullptr, &cli::cli_init};
-
- // Figure out work and home directories.
- //
- work = dir_path::current ();
-
- if (const char* h = getenv ("HOME"))
- home = dir_path (h);
- else
- {
- struct passwd* pw (getpwuid (getuid ()));
-
- if (pw == nullptr)
- {
- const char* msg (strerror (errno));
- fail << "unable to determine home directory: " << msg;
- }
-
- home = dir_path (pw->pw_dir);
- }
-
- if (verb >= 5)
- {
- trace << "work dir: " << work;
- trace << "home dir: " << home;
- }
-
- // Initialize the dependency state.
- //
- reset ();
-
- // Parse command line variables. They should come before the
- // buildspec.
- //
- int argi (1);
- for (; argi != argc; argi++)
- {
- const char* s (argv[argi]);
-
- istringstream is (s);
- is.exceptions (istringstream::failbit | istringstream::badbit);
- lexer l (is, "<cmdline>");
- token t (l.next ());
-
- if (t.type == token_type::eos)
- continue; // Whitespace-only argument.
-
- // Unless this is a name followed by = or +=, assume it is
- // a start of the buildspec.
- //
- if (t.type != token_type::name)
- break;
-
- token_type tt (l.next ().type);
-
- if (tt != token_type::equal &&
- tt != token_type::equal_plus &&
- tt != token_type::plus_equal)
- break;
-
- parser p;
- t = p.parse_variable (l, *global_scope, t.value, tt);
-
- if (t.type != token_type::eos)
- fail << "unexpected " << t << " in variable " << s;
- }
-
- // Parse the buildspec.
- //
- buildspec bspec;
- {
- // Merge all the individual buildspec arguments into a single
- // string. Instead, we could also parse them individually (
- // and merge the result). The benefit of doing it this way
- // is potentially better diagnostics (i.e., we could have
- // used <buildspec-1>, <buildspec-2> to give the idea about
- // which argument is invalid).
- //
- string s;
- for (; argi != argc;)
- {
- s += argv[argi];
- if (++argi != argc)
- s += ' ';
- }
-
- try
- {
- istringstream is (s);
- is.exceptions (istringstream::failbit | istringstream::badbit);
-
- parser p;
- bspec = p.parse_buildspec (is, "<buildspec>");
- }
- catch (const istringstream::failure&)
- {
- fail << "unable to parse buildspec '" << s << "'";
- }
- }
-
- level5 ([&]{trace << "buildspec: " << bspec;});
-
- if (bspec.empty ())
- bspec.push_back (metaopspec ()); // Default meta-operation.
-
- for (metaopspec& ms: bspec)
- {
- if (ms.empty ())
- ms.push_back (opspec ()); // Default operation.
-
- meta_operation_id mid (0); // Not yet translated.
- const meta_operation_info* mif (nullptr);
-
- bool lifted (false); // See below.
-
- for (opspec& os: ms)
- {
- const location l ("<buildspec>", 1, 0); //@@ TODO
-
- if (os.empty ()) // Default target: dir{}.
- os.push_back (targetspec (name ("dir", string ())));
-
- operation_id oid (0); // Not yet translated.
- const operation_info* oif (nullptr);
-
- operation_id pre_oid (0);
- const operation_info* pre_oif (nullptr);
-
- operation_id post_oid (0);
- const operation_info* post_oif (nullptr);
-
- // We do meta-operation and operation batches sequentially (no
- // parallelism). But multiple targets in an operation batch
- // can be done in parallel.
- //
- action_targets tgs;
- tgs.reserve (os.size ());
-
- // If the previous operation was lifted to meta-operation,
- // end the meta-operation batch.
- //
- if (lifted)
- {
- if (mif->meta_operation_post != nullptr)
- mif->meta_operation_post ();
-
- level5 ([&]{trace << "end meta-operation batch " << mif->name
- << ", id " << static_cast<uint16_t> (mid);});
-
- mid = 0;
- lifted = false;
- }
-
- for (targetspec& ts: os)
- {
- name& tn (ts.name);
-
- // First figure out the out_base of this target. The logic
- // is as follows: if a directory was specified in any form,
- // then that's the out_base. Otherwise, we check if the name
- // value has a directory prefix. This has a good balance of
- // control and the expected result in most cases.
- //
- dir_path out_base (tn.dir);
- if (out_base.empty ())
- {
- const string& v (tn.value);
-
- // Handle a few common cases as special: empty name, '.',
- // '..', as well as dir{foo/bar} (without trailing '/').
- // This code must be consistent with find_target_type().
- //
- if (v.empty () || v == "." || v == ".." || tn.type == "dir")
- out_base = dir_path (v);
- //
- // Otherwise, if this is a simple name, see if there is a
- // directory part in value.
- //
- else if (tn.untyped ())
- {
- // We cannot assume it is a valid filesystem name so we
- // will have to do the splitting manually.
- //
- path::size_type i (path::traits::rfind_separator (v));
-
- if (i != string::npos)
- out_base = dir_path (v, i != 0 ? i : 1); // Special case: "/".
- }
- }
-
- if (out_base.relative ())
- out_base = work / out_base;
-
- out_base.normalize ();
-
- // The order in which we determine the roots depends on whether
- // src_base was specified explicitly. There will also be a few
- // cases where we are guessing things that can turn out wrong.
- // Keep track of that so that we can issue more extensive
- // diagnostics for such cases.
- //
- bool guessing (false);
- dir_path src_root;
- dir_path out_root;
-
- dir_path& src_base (ts.src_base); // Update it in buildspec.
-
- if (!src_base.empty ())
- {
- // Make sure it exists. While we will fail further down
- // if it doesn't, the diagnostics could be confusing (e.g.,
- // unknown operation because we don't load bootstrap.build).
- //
- if (!dir_exists (src_base))
- fail << "src_base directory " << src_base << " does not exist";
-
- if (src_base.relative ())
- src_base = work / src_base;
-
- src_base.normalize ();
-
- // If the src_base was explicitly specified, search for src_root.
- //
- src_root = find_src_root (src_base);
-
- // If not found, assume this is a simple project with src_root
- // being the same as src_base.
- //
- if (src_root.empty ())
- {
- src_root = src_base;
- out_root = out_base;
- }
- else
- // Calculate out_root based on src_root/src_base.
- //
- try
- {
- out_root = out_base.directory (src_base.leaf (src_root));
- }
- catch (const invalid_path&)
- {
- fail << "out_base suffix does not match src_root" <<
- info << "src_root: " << src_root <<
- info << "out_base: " << out_base;
- }
- }
- else
- {
- // If no src_base was explicitly specified, search for out_root.
- //
- bool src;
- out_root = find_out_root (out_base, &src);
-
- // If not found (i.e., we have no idea where the roots are),
- // then this can mean two things: an in-tree build of a
- // simple project or a fresh out-of-tree build. To test for
- // the latter, try to find src_root starting from work. If
- // we can't, then assume it is the former case.
- //
- if (out_root.empty ())
- {
- src_root = find_src_root (work);
-
- if (!src_root.empty ())
- {
- src_base = work;
-
- if (src_root != src_base)
- {
- try
- {
- out_root = out_base.directory (src_base.leaf (src_root));
- }
- catch (const invalid_path&)
- {
- fail << "out_base directory suffix does not match src_base"
- << info << "src_base is " << src_base
- << info << "src_root is " << src_root
- << info << "out_base is " << out_base
- << info << "consider explicitly specifying src_base "
- << "for " << tn;
- }
- }
- else
- out_root = out_base;
- }
- else
- src_root = src_base = out_root = out_base;
-
- guessing = true;
- }
- else if (src)
- src_root = out_root;
- }
-
- // Now we know out_root and, if it was explicitly specified
- // or the same as out_root, src_root. The next step is to
- // create the root scope and load the out_root bootstrap
- // files, if any. Note that we might already have done this
- // as a result of one of the preceding target processing.
- //
- // If we know src_root, set that variable as well. This could
- // be of use to the bootstrap files (other than src-root.build,
- // which, BTW, doesn't need to exist if src_root == out_root).
- //
- scope& rs (create_root (out_root, src_root));
-
- bootstrap_out (rs);
-
- // See if the bootstrap process set/changed src_root.
- //
- value& v (rs.assign ("src_root"));
-
- if (v)
- {
- // If we also have src_root specified by the user, make
- // sure they match.
- //
- const dir_path& p (as<dir_path> (v));
-
- if (src_root.empty ())
- src_root = p;
- else if (src_root != p)
- fail << "bootstrapped src_root " << p << " does not match "
- << "specified " << src_root;
- }
- else
- {
- // Neither bootstrap nor the user produced src_root.
- //
- if (src_root.empty ())
- {
- // If it also wasn't explicitly specified, see if it is
- // the same as out_root.
- //
- if (is_src_root (out_root))
- src_root = out_root;
- else
- {
- // If not, then assume we are running from src_base
- // and calculate src_root based on out_root/out_base.
- //
- src_base = work;
- src_root = src_base.directory (out_base.leaf (out_root));
- guessing = true;
- }
- }
-
- v = src_root;
- }
-
- setup_root (rs);
-
- // At this stage we should have both roots and out_base figured
- // out. If src_base is still undetermined, calculate it.
- //
- if (src_base.empty ())
- src_base = src_root / out_base.leaf (out_root);
-
- // Now that we have src_root, load the src_root bootstrap file,
- // if there is one.
- //
- bool bootstrapped (bootstrap_src (rs));
-
- // Check that out_root that we have found is the innermost root
- // for this project. If it is not, then it means we are trying
- // to load a disfigured sub-project and that we do not support.
- // Why don't we support it? Because things are already complex
- // enough here.
- //
- if (auto l = rs.vars["subprojects"])
- {
- for (const name& n: *l)
- {
- if (n.pair != '\0')
- continue; // Skip project names.
-
- if (out_base.sub (out_root / n.dir))
- fail << tn << " is in a subproject of " << out_root <<
- info << "explicitly specify src_base for this target";
- }
- }
-
- // Create and bootstrap outer roots if any. Loading is done
- // by load_root_pre() (that would normally be called by the
- // meta-operation's load() callback below).
- //
- create_bootstrap_outer (rs);
-
- // The src bootstrap should have loaded all the modules that
- // may add new meta/operations. So at this stage they should
- // all be known. We store the combined action id in uint8_t;
- // see <operation> for details.
- //
- assert (operation_table.size () <= 128);
- assert (meta_operation_table.size () <= 128);
-
- // Since we now know all the names of meta-operations and
- // operations, "lift" names that we assumed (from buildspec
- // syntax) were operations but are actually meta-operations.
- // Also convert empty names (which means they weren't explicitly
- // specified) to the defaults and verify that all the names are
- // known.
- //
- {
- const auto& mn (ms.name);
- const auto& on (os.name);
-
- meta_operation_id m (0);
- operation_id o (0);
-
- if (!on.empty ())
- {
- m = meta_operation_table.find (on);
-
- if (m != 0)
- {
- if (!mn.empty ())
- fail (l) << "nested meta-operation " << mn
- << '(' << on << ')';
-
- if (!lifted) // If this is the first target.
- {
- // End the previous meta-operation batch if there was one
- // and start a new one.
- //
- if (mid != 0)
- {
- assert (oid == 0);
-
- if (mif->meta_operation_post != nullptr)
- mif->meta_operation_post ();
-
- level5 ([&]{trace << "end meta-operation batch "
- << mif->name << ", id "
- << static_cast<uint16_t> (mid);});
-
- mid = 0;
- }
-
- lifted = true; // Flag to also end it; see above.
- }
- }
- else
- {
- o = operation_table.find (on);
-
- if (o == 0)
- {
- diag_record dr;
- dr << fail (l) << "unknown operation " << on;
-
- // If we guessed src_root and didn't load anything during
- // bootstrap, then this is probably a meta-operation that
- // would have been added by the module if src_root was
- // correct.
- //
- if (guessing && !bootstrapped)
- dr << info << "consider explicitly specifying src_base "
- << "for " << tn;
- }
- }
- }
-
- if (!mn.empty ())
- {
- m = meta_operation_table.find (mn);
-
- if (m == 0)
- {
- diag_record dr;
- dr << fail (l) << "unknown meta-operation " << mn;
-
- // Same idea as for the operation case above.
- //
- if (guessing && !bootstrapped)
- dr << info << "consider explicitly specifying src_base "
- << "for " << tn;
- }
- }
-
- // The default meta-operation is perform. The default
- // operation is assigned by the meta-operation below.
- //
- if (m == 0)
- m = perform_id;
-
- // If this is the first target in the meta-operation batch,
- // then set the batch meta-operation id.
- //
- if (mid == 0)
- {
- mid = m;
- mif = rs.meta_operations[m];
-
- if (mif == nullptr)
- fail (l) << "target " << tn << " does not support meta-"
- << "operation " << meta_operation_table[m];
-
- level5 ([&]{trace << "start meta-operation batch " << mif->name
- << ", id " << static_cast<uint16_t> (mid);});
-
- if (mif->meta_operation_pre != nullptr)
- mif->meta_operation_pre ();
-
- current_mif = mif;
- }
- //
- // Otherwise, check that all the targets in a meta-operation
- // batch have the same meta-operation implementation.
- //
- else
- {
- const meta_operation_info* mi (rs.meta_operations[mid]);
-
- if (mi == nullptr)
- fail (l) << "target " << tn << " does not support meta-"
- << "operation " << meta_operation_table[mid];
-
- if (mi != mif)
- fail (l) << "different implementations of meta-operation "
- << mif->name << " in the same meta-operation batch";
- }
-
- // If this is the first target in the operation batch, then set
- // the batch operation id.
- //
- if (oid == 0)
- {
- auto lookup =
- [&rs, &l, &tn] (operation_id o) -> const operation_info*
- {
- const operation_info* r (rs.operations[o]);
-
- if (r == nullptr)
- fail (l) << "target " << tn << " does not support "
- << "operation " << operation_table[o];
- return r;
- };
-
- if (o == 0)
- o = default_id;
-
- oif = lookup (o);
-
- level5 ([&]{trace << "start operation batch " << oif->name
- << ", id " << static_cast<uint16_t> (o);});
-
- // Allow the meta-operation to translate the operation.
- //
- if (mif->operation_pre != nullptr)
- oid = mif->operation_pre (o);
- else // Otherwise translate default to update.
- oid = (o == default_id ? update_id : o);
-
- if (o != oid)
- {
- oif = lookup (oid);
- level5 ([&]{trace << "operation translated to " << oif->name
- << ", id " << static_cast<uint16_t> (oid);});
- }
-
- // Handle pre/post operations.
- //
- if (oif->pre != nullptr && (pre_oid = oif->pre (mid)) != 0)
- {
- assert (pre_oid != default_id);
- pre_oif = lookup (pre_oid);
- }
-
- if (oif->post != nullptr && (post_oid = oif->post (mid)) != 0)
- {
- assert (post_oid != default_id);
- post_oif = lookup (post_oid);
- }
- }
- //
- // Similar to meta-operations, check that all the targets in
- // an operation batch have the same operation implementation.
- //
- else
- {
- auto check =
- [&rs, &l, &tn] (operation_id o, const operation_info* i)
- {
- const operation_info* r (rs.operations[o]);
-
- if (r == nullptr)
- fail (l) << "target " << tn << " does not support "
- << "operation " << operation_table[o];
-
- if (r != i)
- fail (l) << "different implementations of operation "
- << i->name << " in the same operation batch";
- };
-
- check (oid, oif);
-
- if (pre_oid != 0)
- check (pre_oid, pre_oif);
-
- if (post_oid != 0)
- check (post_oid, post_oif);
- }
- }
-
- if (verb >= 5)
- {
- trace << "target " << tn << ':';
- trace << " out_base: " << out_base;
- trace << " src_base: " << src_base;
- trace << " out_root: " << out_root;
- trace << " src_root: " << src_root;
- }
-
- path bf (src_base / path ("buildfile"));
-
- // If we were guessing src_base, check that the buildfile
- // exists and if not, issue more detailed diagnostics.
- //
- if (guessing && !file_exists (bf))
- fail << bf << " does not exist"
- << info << "consider explicitly specifying src_base "
- << "for " << tn;
-
- // Load the buildfile.
- //
- mif->load (bf, rs, out_base, src_base, l);
-
- // Next search and match the targets. We don't want to start
- // building before we know how to for all the targets in this
- // operation batch.
- //
- {
- scope& bs (scopes.find (out_base));
-
- const string* e;
- const target_type* ti (bs.find_target_type (tn, e));
-
- if (ti == nullptr)
- fail (l) << "unknown target type " << tn.type;
-
- // If the directory is relative, assume it is relative to work
- // (must be consistent with how we derived out_base above).
- //
- dir_path& d (tn.dir);
-
- if (d.relative ())
- d = work / d;
-
- d.normalize ();
-
- mif->search (rs, target_key {ti, &d, &tn.value, &e}, l, tgs);
- }
- }
-
- if (pre_oid != 0)
- {
- level5 ([&]{trace << "start pre-operation batch " << pre_oif->name
- << ", id " << static_cast<uint16_t> (pre_oid);});
-
- if (mif->operation_pre != nullptr)
- mif->operation_pre (pre_oid); // Cannot be translated.
-
- current_inner_oif = pre_oif;
- current_outer_oif = oif;
- current_mode = pre_oif->mode;
- dependency_count = 0;
-
- action a (mid, pre_oid, oid);
-
- mif->match (a, tgs);
- mif->execute (a, tgs, true); // Run quiet.
-
- if (mif->operation_post != nullptr)
- mif->operation_post (pre_oid);
-
- level5 ([&]{trace << "end pre-operation batch " << pre_oif->name
- << ", id " << static_cast<uint16_t> (pre_oid);});
- }
-
- current_inner_oif = oif;
- current_outer_oif = nullptr;
- current_mode = oif->mode;
- dependency_count = 0;
-
- action a (mid, oid, 0);
-
- mif->match (a, tgs);
- mif->execute (a, tgs, verb == 0);
-
- if (post_oid != 0)
- {
- level5 ([&]{trace << "start post-operation batch " << post_oif->name
- << ", id " << static_cast<uint16_t> (post_oid);});
-
- if (mif->operation_pre != nullptr)
- mif->operation_pre (post_oid); // Cannot be translated.
-
- current_inner_oif = post_oif;
- current_outer_oif = oif;
- current_mode = post_oif->mode;
- dependency_count = 0;
-
- action a (mid, post_oid, oid);
-
- mif->match (a, tgs);
- mif->execute (a, tgs, true); // Run quiet.
-
- if (mif->operation_post != nullptr)
- mif->operation_post (post_oid);
-
- level5 ([&]{trace << "end post-operation batch " << post_oif->name
- << ", id " << static_cast<uint16_t> (post_oid);});
- }
-
- if (mif->operation_post != nullptr)
- mif->operation_post (oid);
-
- level5 ([&]{trace << "end operation batch " << oif->name
- << ", id " << static_cast<uint16_t> (oid);});
- }
-
- if (mif->meta_operation_post != nullptr)
- mif->meta_operation_post ();
-
- level5 ([&]{trace << "end meta-operation batch " << mif->name
- << ", id " << static_cast<uint16_t> (mid);});
- }
- }
- catch (const failed&)
- {
- return 1; // Diagnostics has already been issued.
- }
- /*
- catch (const std::exception& e)
- {
- error << e.what ();
- return 1;
- }
- */
-}
generated by cgit v1.1 at 2024-11-18 13:00:01 +0000