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/*
* Copyright (C) 2011 Colin Walters <walters@verbum.org>
*
* SPDX-License-Identifier: LGPL-2.0+
*
* 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, see <https://www.gnu.org/licenses/>.
*
* Author: Colin Walters <walters@verbum.org>
*/
#include "config.h"
#include "ot-main.h"
#include "ot-builtins.h"
#include "ostree.h"
#include "otutil.h"
#include <gio/gunixoutputstream.h>
/* ATTENTION:
* Please remember to update the bash-completion script (bash/ostree) and
* man page (man/ostree-cat.xml) when changing the option list.
*/
static GOptionEntry options[] = {
{ NULL },
};
static gboolean
cat_one_file (GFile *f,
GOutputStream *stdout_stream,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GInputStream) in = (GInputStream*)g_file_read (f, cancellable, error);
if (!in)
return FALSE;
if (g_output_stream_splice (stdout_stream, in, G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE,
cancellable, error) < 0)
return FALSE;
return TRUE;
}
gboolean
ostree_builtin_cat (int argc, char **argv, OstreeCommandInvocation *invocation, GCancellable *cancellable, GError **error)
{
g_autoptr(GOptionContext) context = g_option_context_new ("COMMIT PATH...");
g_autoptr(OstreeRepo) repo = NULL;
if (!ostree_option_context_parse (context, options, &argc, &argv, invocation, &repo, cancellable, error))
return FALSE;
if (argc <= 2)
{
ot_util_usage_error (context, "A COMMIT and at least one PATH argument are required", error);
return FALSE;
}
const char *rev = argv[1];
g_autoptr(GFile) root = NULL;
if (!ostree_repo_read_commit (repo, rev, &root, NULL, NULL, error))
return FALSE;
g_autoptr(GOutputStream) stdout_stream = g_unix_output_stream_new (1, FALSE);
for (int i = 2; i < argc; i++)
{
g_autoptr(GFile) f = g_file_resolve_relative_path (root, argv[i]);
if (!cat_one_file (f, stdout_stream, cancellable, error))
return FALSE;
}
return TRUE;
}
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