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// file : bdep/project-email.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2018 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <bdep/project-email.hxx>
#include <bdep/git.hxx>
#include <bdep/diagnostics.hxx>
using namespace butl;
namespace bdep
{
const standard_version git_ver ("2.1.0");
optional<string>
project_email (const dir_path& prj)
{
optional<string> r;
// The search order is as follows:
//
// BDEP_EMAIL
// <VCS>
// EMAIL
//
if ((r = getenv ("BDEP_EMAIL")))
return r;
// See if this is a VCS repository we recognize.
//
if (git_repository (prj))
{
// In git the author email can be specified with the GIT_AUTHOR_EMAIL
// environment variable after which things fall back to the committer
// (GIT_COMMITTER_EMAIL and then the user.email git-config value). The
// resolved value can be queried with the GIT_AUTHOR_IDENT logical
// variable.
//
if (optional<string> l = git_line (git_ver,
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 << "no email in GIT_AUTHOR_IDENT" << endf;
if (++p1 != p2)
return string (*l, p1, p2 - p1);
}
}
if ((r = getenv ("EMAIL")))
return r;
return r;
}
}
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