Add prebuild hook

Can be used to add an upstream changelog generated from the
git repository to the build dir.

Closes: #587652

1 files changed, 7 insertions, 0 deletions

diff --git a/git-buildpackage b/git-buildpackage
index dba20a93..e4e5a6c6 100755
--- a/git-buildpackage
+++ b/git-buildpackage
@@ -258,6 +258,8 @@ def main(argv):
                       help="command to build the Debian package, default is '%(builder)s'")
     cmd_group.add_config_file_option(option_name="cleaner", dest="cleaner",
                       help="command to clean the working copy, default is '%(cleaner)s'")
+    cmd_group.add_config_file_option(option_name="prebuild", dest="prebuild",
+                      help="command to run before a build, default is '%(prebuild)s'")
     cmd_group.add_config_file_option(option_name="postbuild", dest="postbuild",
                       help="hook run after a successful build, default is '%(postbuild)s'")
     cmd_group.add_config_file_option(option_name="posttag", dest="posttag",
@@ -376,6 +378,11 @@ def main(argv):
             else:
                 build_dir = repo_dir
 
+            if options.prebuild:
+                RunAtCommand(options.prebuild, shell=True,
+                             extra_env={'GBP_GIT_DIR': repo.base_dir(),
+                                        'GBP_BUILD_DIR': build_dir})(dir=build_dir)
+
             # Finally build the package:
             RunAtCommand(options.builder, dpkg_args, shell=True, 
                          extra_env={'GBP_BUILD_DIR': build_dir})(dir=build_dir)