subversion/svn/cat-cmd.c

   1 /*
   2  * cat-cmd.c -- Print the content of a file or URL.
   3  *
   4  * ====================================================================
   5  * Copyright (c) 2000-2004 CollabNet.  All rights reserved.
   6  *
   7  * This software is licensed as described in the file COPYING, which
   8  * you should have received as part of this distribution.  The terms
   9  * are also available at http://subversion.tigris.org/license-1.html.
  10  * If newer versions of this license are posted there, you may use a
  11  * newer version instead, at your option.
  12  *
  13  * This software consists of voluntary contributions made by many
  14  * individuals.  For exact contribution history, see the revision
  15  * history and logs, available at http://subversion.tigris.org/.
  16  * ====================================================================
  17  */
  18
  19 /* ==================================================================== */
  20
  21
  22 \f
  23 /*** Includes. ***/
  24
  25 #include "svn_pools.h"
  26 #include "svn_client.h"
  27 #include "svn_error.h"
  28 #include "cl.h"
  29
  30 \f
  31 /*** Code. ***/
  32
  33 /* This implements the `svn_opt_subcommand_t' interface. */
  34 svn_error_t *
  35 svn_cl__cat(apr_getopt_t *os,
  36             void *baton,
  37             apr_pool_t *pool)
  38 {
  39   svn_cl__opt_state_t *opt_state = ((svn_cl__cmd_baton_t *) baton)->opt_state;
  40   svn_client_ctx_t *ctx = ((svn_cl__cmd_baton_t *) baton)->ctx;
  41   apr_array_header_t *targets;
  42   int i;
  43   svn_stream_t *out;
  44   apr_pool_t *subpool = svn_pool_create(pool);
  45
  46   SVN_ERR(svn_cl__args_to_target_array_print_reserved(&targets, os,
  47                                                       opt_state->targets,
  48                                                       ctx, pool));
  49
  50   /* Cat cannot operate on an implicit '.' so a filename is required */
  51   if (! targets->nelts)
  52     return svn_error_create(SVN_ERR_CL_INSUFFICIENT_ARGS, 0, NULL);
  53
  54   SVN_ERR(svn_stream_for_stdout(&out, pool));
  55
  56   for (i = 0; i < targets->nelts; i++)
  57     {
  58       const char *target = APR_ARRAY_IDX(targets, i, const char *);
  59       const char *truepath;
  60       svn_opt_revision_t peg_revision;
  61
  62       svn_pool_clear(subpool);
  63       SVN_ERR(svn_cl__check_cancel(ctx->cancel_baton));
  64
  65       /* Get peg revisions. */
  66       SVN_ERR(svn_opt_parse_path(&peg_revision, &truepath, target,
  67                                  subpool));
  68
  69       SVN_ERR(svn_cl__try(svn_client_cat2(out, truepath, &peg_revision,
  70                                           &(opt_state->start_revision),
  71                                           ctx, subpool),
  72                            NULL, opt_state->quiet,
  73                            SVN_ERR_UNVERSIONED_RESOURCE,
  74                            SVN_ERR_ENTRY_NOT_FOUND,
  75                            SVN_ERR_CLIENT_IS_DIRECTORY,
  76                            SVN_NO_ERROR));
  77     }
  78   svn_pool_destroy(subpool);
  79
  80   return SVN_NO_ERROR;
  81 }