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| -rw-r--r-- | build2/version/utility.cxx | 78 | ||||
| -rw-r--r-- | build2/version/utility.hxx | 25 |
2 files changed, 103 insertions, 0 deletions
diff --git a/build2/version/utility.cxx b/build2/version/utility.cxx new file mode 100644 index 0000000..8211e85 --- /dev/null +++ b/build2/version/utility.cxx @@ -0,0 +1,78 @@ +// file : build2/version/utility.cxx -*- C++ -*- +// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#include <build2/version/utility.hxx> + +#include <libbutl/manifest-parser.mxx> +#include <libbutl/manifest-serializer.mxx> + +#include <build2/diagnostics.hxx> + +using namespace butl; + +namespace build2 +{ + namespace version + { + auto_rmfile + fixup_manifest (const path& in, path out, const standard_version& v) + { + auto_rmfile r (move (out)); + + try + { + permissions perm (path_permissions (in)); + + ifdstream ifs (in); + manifest_parser p (ifs, in.string ()); + + auto_fd ofd (fdopen (r.path, + fdopen_mode::out | + fdopen_mode::create | + fdopen_mode::exclusive | + fdopen_mode::binary, + perm)); + + ofdstream ofs (move (ofd)); + manifest_serializer s (ofs, r.path.string ()); + + manifest_name_value nv (p.next ()); + assert (nv.name.empty () && nv.value == "1"); // We just loaded it. + s.next (nv.name, nv.value); + + for (nv = p.next (); !nv.empty (); nv = p.next ()) + { + if (nv.name == "version") + nv.value = v.string (); + + s.next (nv.name, nv.value); + } + + s.next (nv.name, nv.value); // End of manifest. + s.next (nv.name, nv.value); // End of stream. + + ofs.close (); + ifs.close (); + + return r; + } + catch (const manifest_parsing& e) + { + location l (&in, e.line, e.column); + fail (l) << e.description; + } + catch (const manifest_serialization& e) + { + location l (&r.path); + fail (l) << e.description; + } + catch (const io_error& e) + { + fail << "io error: " << e << + info << "while reading " << in << + info << "while writing " << r.path; + } + } + } +} diff --git a/build2/version/utility.hxx b/build2/version/utility.hxx new file mode 100644 index 0000000..c373f6c --- /dev/null +++ b/build2/version/utility.hxx @@ -0,0 +1,25 @@ +// file : build2/version/utility.hxx -*- C++ -*- +// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#ifndef BUILD2_VERSION_UTILITY_HXX +#define BUILD2_VERSION_UTILITY_HXX + +#include <build2/types.hxx> +#include <build2/utility.hxx> + +#include <build2/filesystem.hxx> + +namespace build2 +{ + namespace version + { + // Re-serialize the manifest fixing up the version. Note that this will + // not preserve comments. Probably acceptable for snapshots. + // + auto_rmfile + fixup_manifest (const path& in, path out, const standard_version&); + } +} + +#endif // BUILD2_VERSION_UTILITY_HXX |