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// file : bdep/project-author.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <bdep/project-author.hxx>
#include <bdep/git.hxx>
#include <bdep/diagnostics.hxx>
using namespace butl;
namespace bdep
{
project_author
find_project_author (const dir_path& prj)
{
project_author r;
// The search order is as follows:
//
// BDEP_AUTHOR_(NAME|EMAIL)
// <VCS>
// (USER|EMAIL)
//
r.name = getenv ("BDEP_AUTHOR_NAME");
r.email = getenv ("BDEP_AUTHOR_EMAIL");
if (!r.name || !r.email)
{
// See if this is a VCS repository we recognize.
//
if (git_repository (prj))
{
// In git the author name/email can be specified with the
// GIT_AUTHOR_NAME/EMAIL environment variables after which things
// fall back to the committer (GIT_COMMITTER_NAME/EMAIL and then
// the user.name/email git-config value). The resolved value can
// be queried with the GIT_AUTHOR_IDENT logical variable.
//
if (optional<string> l = git_line (semantic_version {2, 1, 0},
prj,
true /* ignore_error */,
"var", "GIT_AUTHOR_IDENT"))
{
// The output should be a single line in this form:
//
// NAME <EMAIL> TIME ZONE
//
// For example:
//
// John Doe <john@example.org> 1530517726 +0200
//
// The <> delimiters are there even if the email is empty so we use
// them as anchors.
//
size_t p1, p2;
if ((p2 = l->rfind ('>' )) == string::npos ||
(p1 = l->rfind ('<', p2)) == string::npos)
fail << "invalid GIT_AUTHOR_IDENT value '" << *l << "'" << endf;
if (!r.name)
{
string n (*l, 0, p1);
if (!trim (n).empty ())
r.name = move (n);
}
if (!r.email)
{
++p1;
string e (*l, p1, p2 - p1);
if (!trim (e).empty ())
r.email = move (e);
}
}
}
}
if (!r.name ) r.name = getenv ("USER");
if (!r.email) r.email = getenv ("EMAIL");
return r;
}
}
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