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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2011 Colin Walters <walters@verbum.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Colin Walters <walters@verbum.org>
*/
#include "config.h"
#include "ot-builtins.h"
#include "ostree.h"
#include <gio/gunixoutputstream.h>
static GOptionEntry options[] = {
};
static gboolean
cat_one_file (GFile *f,
GOutputStream *stdout_stream,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
gs_unref_object GInputStream *in = NULL;
in = (GInputStream*)g_file_read (f, cancellable, error);
if (!in)
goto out;
if (!g_output_stream_splice (stdout_stream, in, G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE,
cancellable, error))
goto out;
ret = TRUE;
out:
return ret;
}
gboolean
ostree_builtin_cat (int argc, char **argv, GFile *repo_path, GError **error)
{
GOptionContext *context;
gboolean ret = FALSE;
int i;
GCancellable *cancellable = NULL;
const char *rev;
gs_unref_object OstreeRepo *repo = NULL;
gs_unref_object GOutputStream *stdout_stream = NULL;
gs_unref_object GFile *root = NULL;
gs_unref_object GFile *f = NULL;
context = g_option_context_new ("COMMIT PATH [PATH...] - Concatenate contents of files");
g_option_context_add_main_entries (context, options, NULL);
if (!g_option_context_parse (context, &argc, &argv, error))
goto out;
repo = ostree_repo_new (repo_path);
if (!ostree_repo_check (repo, error))
goto out;
if (argc <= 2)
{
ot_util_usage_error (context, "An COMMIT and at least one PATH argument are required", error);
goto out;
}
rev = argv[1];
if (!ostree_repo_read_commit (repo, rev, &root, NULL, error))
goto out;
stdout_stream = g_unix_output_stream_new (1, FALSE);
for (i = 2; i < argc; i++)
{
g_clear_object (&f);
f = g_file_resolve_relative_path (root, argv[i]);
if (!cat_one_file (f, stdout_stream, cancellable, error))
goto out;
}
ret = TRUE;
out:
if (context)
g_option_context_free (context);
return ret;
}
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