t/helper/test-progress.c

   1 /*
   2  * A test helper to exercise the progress display.
   3  *
   4  * Reads instructions from standard input, one instruction per line:
   5  *
   6  *   "start <total>[ <title>]" - Call start_progress(title, total),
   7  *                               Uses the default title of "Working hard"
   8  *                               if the " <title>" is omitted.
   9  *   "progress <items>" - Call display_progress() with the given item count
  10  *                        as parameter.
  11  *   "throughput <bytes> <millis> - Call display_throughput() with the given
  12  *                                  byte count as parameter.  The 'millis'
  13  *                                  specify the time elapsed since the
  14  *                                  start_progress() call.
  15  *   "update" - Set the 'progress_update' flag.
  16  *   "stop" - Call stop_progress().
  17  *
  18  * See 't0500-progress-display.sh' for examples.
  19  */
  20 #define GIT_TEST_PROGRESS_ONLY
  21 #include "test-tool.h"
  22 #include "parse-options.h"
  23 #include "progress.h"
  24 #include "strbuf.h"
  25 #include "string-list.h"
  26
  27 int cmd__progress(int argc, const char **argv)
  28 {
  29         const char *const default_title = "Working hard";
  30         struct string_list titles = STRING_LIST_INIT_DUP;
  31         struct strbuf line = STRBUF_INIT;
  32         struct progress *progress = NULL;
  33
  34         const char *usage[] = {
  35                 "test-tool progress <stdin",
  36                 NULL
  37         };
  38         struct option options[] = {
  39                 OPT_END(),
  40         };
  41
  42         argc = parse_options(argc, argv, NULL, options, usage, 0);
  43         if (argc)
  44                 usage_with_options(usage, options);
  45
  46         progress_testing = 1;
  47         while (strbuf_getline(&line, stdin) != EOF) {
  48                 char *end;
  49
  50                 if (skip_prefix(line.buf, "start ", (const char **) &end)) {
  51                         uint64_t total = strtoull(end, &end, 10);
  52                         const char *title;
  53
  54                         /*
  55                          * We can't use "end + 1" as an argument to
  56                          * start_progress(), it doesn't xstrdup() its
  57                          * "title" argument. We need to hold onto a
  58                          * valid "char *" for it until the end.
  59                          */
  60                         if (!*end)
  61                                 title = default_title;
  62                         else if (*end == ' ')
  63                                 title = string_list_insert(&titles, end + 1)->string;
  64                         else
  65                                 die("invalid input: '%s'\n", line.buf);
  66
  67                         progress = start_progress(title, total);
  68                 } else if (skip_prefix(line.buf, "progress ", (const char **) &end)) {
  69                         uint64_t item_count = strtoull(end, &end, 10);
  70                         if (*end != '\0')
  71                                 die("invalid input: '%s'\n", line.buf);
  72                         display_progress(progress, item_count);
  73                 } else if (skip_prefix(line.buf, "throughput ",
  74                                        (const char **) &end)) {
  75                         uint64_t byte_count, test_ms;
  76
  77                         byte_count = strtoull(end, &end, 10);
  78                         if (*end != ' ')
  79                                 die("invalid input: '%s'\n", line.buf);
  80                         test_ms = strtoull(end + 1, &end, 10);
  81                         if (*end != '\0')
  82                                 die("invalid input: '%s'\n", line.buf);
  83                         progress_test_ns = test_ms * 1000 * 1000;
  84                         display_throughput(progress, byte_count);
  85                 } else if (!strcmp(line.buf, "update")) {
  86                         progress_test_force_update();
  87                 } else if (!strcmp(line.buf, "stop")) {
  88                         stop_progress(&progress);
  89                 } else {
  90                         die("invalid input: '%s'\n", line.buf);
  91                 }
  92         }
  93         strbuf_release(&line);
  94         string_list_clear(&titles, 0);
  95
  96         return 0;
  97 }