1/*
2 * cat-cmd.c -- Print the content of a file or URL.
3 *
4 * ====================================================================
5 *    Licensed to the Apache Software Foundation (ASF) under one
6 *    or more contributor license agreements.  See the NOTICE file
7 *    distributed with this work for additional information
8 *    regarding copyright ownership.  The ASF licenses this file
9 *    to you under the Apache License, Version 2.0 (the
10 *    "License"); you may not use this file except in compliance
11 *    with the License.  You may obtain a copy of the License at
12 *
13 *      http://www.apache.org/licenses/LICENSE-2.0
14 *
15 *    Unless required by applicable law or agreed to in writing,
16 *    software distributed under the License is distributed on an
17 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
18 *    KIND, either express or implied.  See the License for the
19 *    specific language governing permissions and limitations
20 *    under the License.
21 * ====================================================================
22 */
23
24/* ==================================================================== */
25
26
27
28/*** Includes. ***/
29
30#include "svn_pools.h"
31#include "svn_client.h"
32#include "svn_error.h"
33#include "svn_opt.h"
34#include "cl.h"
35
36#include "svn_private_config.h"
37
38
39/*** Code. ***/
40
41/* This implements the `svn_opt_subcommand_t' interface. */
42svn_error_t *
43svn_cl__cat(apr_getopt_t *os,
44            void *baton,
45            apr_pool_t *pool)
46{
47  svn_cl__opt_state_t *opt_state = ((svn_cl__cmd_baton_t *) baton)->opt_state;
48  svn_client_ctx_t *ctx = ((svn_cl__cmd_baton_t *) baton)->ctx;
49  apr_array_header_t *targets;
50  int i;
51  svn_stream_t *out;
52  apr_pool_t *subpool = svn_pool_create(pool);
53  apr_array_header_t *errors = apr_array_make(pool, 0, sizeof(apr_status_t));
54  svn_error_t *err;
55
56  SVN_ERR(svn_cl__args_to_target_array_print_reserved(&targets, os,
57                                                      opt_state->targets,
58                                                      ctx, FALSE, pool));
59
60  /* Cat cannot operate on an implicit '.' so a filename is required */
61  if (! targets->nelts)
62    return svn_error_create(SVN_ERR_CL_INSUFFICIENT_ARGS, 0, NULL);
63
64  SVN_ERR(svn_stream_for_stdout(&out, pool));
65
66  for (i = 0; i < targets->nelts; i++)
67    {
68      const char *target = APR_ARRAY_IDX(targets, i, const char *);
69      const char *truepath;
70      svn_opt_revision_t peg_revision;
71
72      svn_pool_clear(subpool);
73      SVN_ERR(svn_cl__check_cancel(ctx->cancel_baton));
74
75      /* Get peg revisions. */
76      SVN_ERR(svn_opt_parse_path(&peg_revision, &truepath, target,
77                                 subpool));
78
79      SVN_ERR(svn_cl__try(svn_client_cat3(NULL, out, truepath, &peg_revision,
80                                          &(opt_state->start_revision),
81                                          !opt_state->ignore_keywords,
82                                          ctx, subpool, subpool),
83                           errors, opt_state->quiet,
84                           SVN_ERR_UNVERSIONED_RESOURCE,
85                           SVN_ERR_ENTRY_NOT_FOUND,
86                           SVN_ERR_CLIENT_IS_DIRECTORY,
87                           SVN_ERR_FS_NOT_FOUND,
88                           0));
89    }
90  svn_pool_destroy(subpool);
91
92  if (errors->nelts > 0)
93    {
94      err = svn_error_create(SVN_ERR_ILLEGAL_TARGET, NULL, NULL);
95
96      for (i = 0; i < errors->nelts; i++)
97        {
98          apr_status_t status = APR_ARRAY_IDX(errors, i, apr_status_t);
99
100          if (status == SVN_ERR_ENTRY_NOT_FOUND ||
101              status == SVN_ERR_FS_NOT_FOUND)
102            err = svn_error_quick_wrap(err,
103                                       _("Could not cat all targets because "
104                                         "some targets don't exist"));
105          else if (status == SVN_ERR_UNVERSIONED_RESOURCE)
106            err = svn_error_quick_wrap(err,
107                                       _("Could not cat all targets because "
108                                         "some targets are not versioned"));
109          else if (status == SVN_ERR_CLIENT_IS_DIRECTORY)
110            err = svn_error_quick_wrap(err,
111                                       _("Could not cat all targets because "
112                                         "some targets are directories"));
113        }
114
115      return svn_error_trace(err);
116    }
117
118  return SVN_NO_ERROR;
119}
120