cmd-source-file.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2008 Tiago Cunha <me@tiagocunha.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <errno.h>
  22 #include <glob.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <vis.h>
  26
  27 #include "tmux.h"
  28
  29 /*
  30  * Sources a configuration file.
  31  */
  32
  33 static enum cmd_retval  cmd_source_file_exec(struct cmd *, struct cmdq_item *);
  34
  35 const struct cmd_entry cmd_source_file_entry = {
  36         .name = "source-file",
  37         .alias = "source",
  38
  39         .args = { "Fnqv", 1, -1, NULL },
  40         .usage = "[-Fnqv] path ...",
  41
  42         .flags = 0,
  43         .exec = cmd_source_file_exec
  44 };
  45
  46 struct cmd_source_file_data {
  47         struct cmdq_item         *item;
  48         int                       flags;
  49
  50         struct cmdq_item         *after;
  51         enum cmd_retval           retval;
  52
  53         u_int                     current;
  54         char                    **files;
  55         u_int                     nfiles;
  56 };
  57
  58 static enum cmd_retval
  59 cmd_source_file_complete_cb(struct cmdq_item *item, __unused void *data)
  60 {
  61         cfg_print_causes(item);
  62         return (CMD_RETURN_NORMAL);
  63 }
  64
  65 static void
  66 cmd_source_file_complete(struct client *c, struct cmd_source_file_data *cdata)
  67 {
  68         struct cmdq_item        *new_item;
  69         u_int                    i;
  70
  71         if (cfg_finished) {
  72                 if (cdata->retval == CMD_RETURN_ERROR &&
  73                     c != NULL &&
  74                     c->session == NULL)
  75                         c->retval = 1;
  76                 new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL);
  77                 cmdq_insert_after(cdata->after, new_item);
  78         }
  79
  80         for (i = 0; i < cdata->nfiles; i++)
  81                 free(cdata->files[i]);
  82         free(cdata->files);
  83         free(cdata);
  84 }
  85
  86 static void
  87 cmd_source_file_done(struct client *c, const char *path, int error,
  88     int closed, struct evbuffer *buffer, void *data)
  89 {
  90         struct cmd_source_file_data     *cdata = data;
  91         struct cmdq_item                *item = cdata->item;
  92         void                            *bdata = EVBUFFER_DATA(buffer);
  93         size_t                           bsize = EVBUFFER_LENGTH(buffer);
  94         u_int                            n;
  95         struct cmdq_item                *new_item;
  96
  97         if (!closed)
  98                 return;
  99
 100         if (error != 0)
 101                 cmdq_error(item, "%s: %s", path, strerror(error));
 102         else if (bsize != 0) {
 103                 if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after,
 104                     cdata->flags, &new_item) < 0)
 105                         cdata->retval = CMD_RETURN_ERROR;
 106                 else if (new_item != NULL)
 107                         cdata->after = new_item;
 108         }
 109
 110         n = ++cdata->current;
 111         if (n < cdata->nfiles)
 112                 file_read(c, cdata->files[n], cmd_source_file_done, cdata);
 113         else {
 114                 cmd_source_file_complete(c, cdata);
 115                 cmdq_continue(item);
 116         }
 117 }
 118
 119 static void
 120 cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path)
 121 {
 122         log_debug("%s: %s", __func__, path);
 123         cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1,
 124             sizeof *cdata->files);
 125         cdata->files[cdata->nfiles++] = xstrdup(path);
 126 }
 127
 128 static enum cmd_retval
 129 cmd_source_file_exec(struct cmd *self, struct cmdq_item *item)
 130 {
 131         struct args                     *args = cmd_get_args(self);
 132         struct cmd_source_file_data     *cdata;
 133         struct client                   *c = cmdq_get_client(item);
 134         enum cmd_retval                  retval = CMD_RETURN_NORMAL;
 135         char                            *pattern, *cwd, *expanded = NULL;
 136         const char                      *path, *error;
 137         glob_t                           g;
 138         int                              result;
 139         u_int                            i, j;
 140
 141         cdata = xcalloc(1, sizeof *cdata);
 142         cdata->item = item;
 143
 144         if (args_has(args, 'q'))
 145                 cdata->flags |= CMD_PARSE_QUIET;
 146         if (args_has(args, 'n'))
 147                 cdata->flags |= CMD_PARSE_PARSEONLY;
 148         if (args_has(args, 'v'))
 149                 cdata->flags |= CMD_PARSE_VERBOSE;
 150
 151         utf8_stravis(&cwd, server_client_get_cwd(c, NULL), VIS_GLOB);
 152
 153         for (i = 0; i < args_count(args); i++) {
 154                 path = args_string(args, i);
 155                 if (args_has(args, 'F')) {
 156                         free(expanded);
 157                         expanded = format_single_from_target(item, path);
 158                         path = expanded;
 159                 }
 160                 if (strcmp(path, "-") == 0) {
 161                         cmd_source_file_add(cdata, "-");
 162                         continue;
 163                 }
 164
 165                 if (*path == '/')
 166                         pattern = xstrdup(path);
 167                 else
 168                         xasprintf(&pattern, "%s/%s", cwd, path);
 169                 log_debug("%s: %s", __func__, pattern);
 170
 171                 if ((result = glob(pattern, 0, NULL, &g)) != 0) {
 172                         if (result != GLOB_NOMATCH ||
 173                             (~cdata->flags & CMD_PARSE_QUIET)) {
 174                                 if (result == GLOB_NOMATCH)
 175                                         error = strerror(ENOENT);
 176                                 else if (result == GLOB_NOSPACE)
 177                                         error = strerror(ENOMEM);
 178                                 else
 179                                         error = strerror(EINVAL);
 180                                 cmdq_error(item, "%s: %s", path, error);
 181                                 retval = CMD_RETURN_ERROR;
 182                         }
 183                         globfree(&g);
 184                         free(pattern);
 185                         continue;
 186                 }
 187                 free(pattern);
 188
 189                 for (j = 0; j < g.gl_pathc; j++)
 190                         cmd_source_file_add(cdata, g.gl_pathv[j]);
 191                 globfree(&g);
 192         }
 193         free(expanded);
 194
 195         cdata->after = item;
 196         cdata->retval = retval;
 197
 198         if (cdata->nfiles != 0) {
 199                 file_read(c, cdata->files[0], cmd_source_file_done, cdata);
 200                 retval = CMD_RETURN_WAIT;
 201         } else
 202                 cmd_source_file_complete(c, cdata);
 203
 204         free(cwd);
 205         return (retval);
 206 }