Build identification strings

All client version information is moved to version.cpp, which optionally
(-DHAVE_BUILD_INFO) includes build.h. build.h is automatically generated
on supporting platforms via contrib/genbuild.sh, using git describe.

The git export-subst attribute is used to put the commit id statically
in version.cpp inside generated archives, and this value is used if no
build.h is present.

The gitian descriptors are modified to use git archive instead of a
copy, to create the src/ directory in the output. This way,
src/src/version.cpp will contain the static commit id. To prevent
gitian builds from getting the "-dirty" marker in their git-describe
generated identifiers, no touching of files or running sed on the
makefile is performed anymore. This does not seem to influence
determinism.

3 files changed, 8 insertions, 0 deletions

diff --git a/src/qt/aboutdialog.cpp b/src/qt/aboutdialog.cpp
index 08d7774067..0b98befe8d 100644
--- a/src/qt/aboutdialog.cpp
+++ b/src/qt/aboutdialog.cpp
@@ -2,6 +2,8 @@
 #include "ui_aboutdialog.h"
 #include "clientmodel.h"
 
+#include "version.h"
+
 AboutDialog::AboutDialog(QWidget *parent) :
     QDialog(parent),
     ui(new Ui::AboutDialog)
diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
index 8163da0915..284bee0e8e 100644
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -88,3 +88,8 @@ QString ClientModel::formatFullVersion() const
 {
     return QString::fromStdString(FormatFullVersion());
 }
+
+QString ClientModel::formatBuildDate() const
+{
+    return QString::fromStdString(CLIENT_DATE);
+}
diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h
index 6366b4d617..8e7431a2f3 100644
--- a/src/qt/clientmodel.h
+++ b/src/qt/clientmodel.h
@@ -37,6 +37,7 @@ public:
     QString getStatusBarWarnings() const;
 
     QString formatFullVersion() const;
+    QString formatBuildDate() const;
 
 private:
     OptionsModel *optionsModel;