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e808fb424a
Unify the many copies of diff_with_file in one source file, and patch it to detect diff at runtime and fall back to a simple strcmp if we don't have it. Make all tests use this new testutils.c, and stop requiring diff for building the tests. This should let us allow to build on Windows with the default value for -Dbuild-tests.
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*
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* Copyright © 2021 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Matthias Clasen <mclasen@redhat.com>
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*/
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#include <glib.h>
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#include <glib/gstdio.h>
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#include <unistd.h>
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#include "testsuite/testutils.h"
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char *
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diff_with_file (const char *file1,
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char *text,
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gssize len,
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GError **error)
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{
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const char *command[] = { "diff", "-u", file1, NULL, NULL };
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char *diff, *tmpfile;
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int fd;
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diff = NULL;
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if (g_find_program_in_path ("diff"))
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{
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if (len < 0)
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len = strlen (text);
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/* write the text buffer to a temporary file */
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fd = g_file_open_tmp (NULL, &tmpfile, error);
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if (fd < 0)
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return NULL;
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if (write (fd, text, len) != (int) len)
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{
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close (fd);
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g_set_error (error,
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G_FILE_ERROR, G_FILE_ERROR_FAILED,
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"Could not write data to temporary file '%s'", tmpfile);
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goto done;
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}
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close (fd);
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command[3] = tmpfile;
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/* run diff command */
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g_spawn_sync (NULL,
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(char **) command,
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NULL,
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G_SPAWN_SEARCH_PATH,
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NULL, NULL,
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&diff,
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NULL, NULL,
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error);
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done:
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g_unlink (tmpfile);
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g_free (tmpfile);
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}
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else
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{
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char *buf1;
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gsize len1;
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if (!g_file_get_contents (file1, &buf1, &len1, error))
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return NULL;
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if ((len != -1 && len != len1) ||
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strncmp (text, buf1, len1) != 0)
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diff = g_strdup ("Files differ.\n");
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g_free (buf1);
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}
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return diff;
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}
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