[libgit2-glib] Compatibility with libgit2 0.28

[Alberto Fanjul <albfan src gnome org>]

commit 4e913cdfe09c8e10506111210e4328ac4f54bf08
Author: maxice8 <thinkabit ukim gmail com>
Date:   Mon Feb 11 23:30:10 2019 -0200

    Compatibility with libgit2 0.28
    
    The git_buf_free API is deprecated; it has been renamed to
      git_buf_dispose for consistency.  The git_buf_free API will be
      retained for backward compatibility for the foreseeable future.
    
    The error functions and enumeration values have been renamed for
      consistency.  The giterr_ functions and values prefix have been
      renamed to be prefixed with git_error_; similarly, the GITERR_
      constants have been renamed to be prefixed with GIT_ERROR_.
      The old enumerations and macros will be retained for backward
      compatibility for the foreseeable future.

 libgit2-glib/ggit-clone-options.c    | 8 ++++++++
 libgit2-glib/ggit-config.c           | 8 ++++++++
 libgit2-glib/ggit-diff.c             | 8 ++++++++
 libgit2-glib/ggit-error.c            | 4 ++++
 libgit2-glib/ggit-message.c          | 4 ++++
 libgit2-glib/ggit-patch.c            | 4 ++++
 libgit2-glib/ggit-remote-callbacks.c | 4 ++++
 libgit2-glib/ggit-repository.c       | 8 ++++++++
 8 files changed, 48 insertions(+)
---
diff --git a/libgit2-glib/ggit-clone-options.c b/libgit2-glib/ggit-clone-options.c
index 1288a82..5e69eec 100644
--- a/libgit2-glib/ggit-clone-options.c
+++ b/libgit2-glib/ggit-clone-options.c
@@ -149,7 +149,11 @@ create_repository_wrapper (git_repository **out,
 
        if (error != NULL)
        {
+#if LIBGIT2_SOVERSION >= 28
+               git_error_set_str (GIT_ERROR, error->message);
+#else
                giterr_set_str (GIT_ERROR, error->message);
+#endif
                g_error_free (error);
 
                if (repository != NULL)
@@ -187,7 +191,11 @@ create_remote_wrapper (git_remote     **out,
 
        if (error)
        {
+#if LIBGIT2_SOVERSION >= 28
+               git_error_set_str (GIT_ERROR, error->message);
+#else
                giterr_set_str (GIT_ERROR, error->message);
+#endif
                g_error_free (error);
 
                if (remote != NULL)
diff --git a/libgit2-glib/ggit-config.c b/libgit2-glib/ggit-config.c
index acdad95..626f7f0 100644
--- a/libgit2-glib/ggit-config.c
+++ b/libgit2-glib/ggit-config.c
@@ -191,7 +191,11 @@ ggit_config_find_global (void)
        if (git_config_find_global (&buf) == GIT_OK)
        {
                path = g_file_new_for_path (buf.ptr);
+#if LIBGIT2_SOVERSION >= 28
+               git_buf_dispose (&buf);
+#else
                git_buf_free (&buf);
+#endif
        }
 
        return path;
@@ -220,7 +224,11 @@ ggit_config_find_system (void)
        if (git_config_find_system (&buf) == GIT_OK)
        {
                path = g_file_new_for_path (buf.ptr);
+#if LIBGIT2_SOVERSION >= 28
+               git_buf_dispose (&buf);
+#else
                git_buf_free (&buf);
+#endif
        }
 
        return path;
diff --git a/libgit2-glib/ggit-diff.c b/libgit2-glib/ggit-diff.c
index db9361d..43fa6cf 100644
--- a/libgit2-glib/ggit-diff.c
+++ b/libgit2-glib/ggit-diff.c
@@ -786,13 +786,21 @@ ggit_diff_format_email (GgitDiff                    *diff,
 
        if (ret != GIT_OK)
        {
+#if LIBGIT2_SOVERSION >= 28
+               git_buf_dispose (&buf);
+#else
                git_buf_free (&buf);
+#endif
                _ggit_error_set (error, ret);
                return NULL;
        }
 
        retval = g_strndup (buf.ptr, buf.size);
+#if LIBGIT2_SOVERSION >= 28
+       git_buf_dispose (&buf);
+#else
        git_buf_free (&buf);
+#endif
 
        return retval;
 }
diff --git a/libgit2-glib/ggit-error.c b/libgit2-glib/ggit-error.c
index 06a21a7..9247064 100644
--- a/libgit2-glib/ggit-error.c
+++ b/libgit2-glib/ggit-error.c
@@ -51,7 +51,11 @@ _ggit_error_set (GError **error,
        g_return_if_fail (err < 0);
 
        /* TODO: add more kind of errors, see git_error_t */
+#if LIBGIT2_SOVERSION >= 28
+       git2_err = git_error_last ();
+#else
        git2_err = giterr_last ();
+#endif
        g_set_error_literal (error, GGIT_ERROR,
                             err,
                             git2_err == NULL ? "" : git2_err->message);
diff --git a/libgit2-glib/ggit-message.c b/libgit2-glib/ggit-message.c
index 0fa9e8c..7bd6983 100644
--- a/libgit2-glib/ggit-message.c
+++ b/libgit2-glib/ggit-message.c
@@ -46,7 +46,11 @@ ggit_message_prettify (const gchar *message,
        git_message_prettify (&buf, message, strip_comments, comment_char);
 
        d = g_strdup (buf.ptr);
+#if LIBGIT2_SOVERSION >= 28
+       git_buf_dispose (&buf);
+#else
        git_buf_free (&buf);
+#endif
 
        return d;
 }
diff --git a/libgit2-glib/ggit-patch.c b/libgit2-glib/ggit-patch.c
index ee04e4d..cd35be7 100644
--- a/libgit2-glib/ggit-patch.c
+++ b/libgit2-glib/ggit-patch.c
@@ -194,7 +194,11 @@ ggit_patch_to_string (GgitPatch  *patch,
        if (ret == GIT_OK)
        {
                result = g_strdup (buf.ptr);
+#if LIBGIT2_SOVERSION >= 28
+               git_buf_dispose (&buf);
+#else
                git_buf_free (&buf);
+#endif
        }
 
        return result;
diff --git a/libgit2-glib/ggit-remote-callbacks.c b/libgit2-glib/ggit-remote-callbacks.c
index a4bc130..7956f8b 100644
--- a/libgit2-glib/ggit-remote-callbacks.c
+++ b/libgit2-glib/ggit-remote-callbacks.c
@@ -160,7 +160,11 @@ credentials_wrap (git_cred     **cred,
                {
                        if (error)
                        {
+#if LIBGIT2_SOVERSION >= 28
+                               git_error_set_str (GIT_ERROR, error->message);
+#else
                                giterr_set_str (GIT_ERROR, error->message);
+#endif
                                g_error_free (error);
 
                                return GIT_ERROR;
diff --git a/libgit2-glib/ggit-repository.c b/libgit2-glib/ggit-repository.c
index b9bd2b7..722ab18 100644
--- a/libgit2-glib/ggit-repository.c
+++ b/libgit2-glib/ggit-repository.c
@@ -1013,7 +1013,11 @@ ggit_repository_discover_full (GFile        *location,
        if (ret == GIT_OK)
        {
                rep = g_file_new_for_path (buf.ptr);
+#if LIBGIT2_SOVERSION >= 28
+               git_buf_dispose (&buf);
+#else
                git_buf_free (&buf);
+#endif
        }
        else
        {
@@ -3680,7 +3684,11 @@ ggit_repository_get_default_notes_ref (GgitRepository  *repository,
        }
 
        ref = g_strdup (buf.ptr);
+#if LIBGIT2_SOVERSION >= 28
+       git_buf_dispose (&buf);
+#else
        git_buf_free (&buf);
+#endif
 
        return ref;
 }