diff options
Diffstat (limited to 'progress.c')
| -rw-r--r-- | progress.c | 130 |
1 files changed, 93 insertions, 37 deletions
diff --git a/progress.c b/progress.c index 5a99c9fbf0..a2e8cf64a8 100644 --- a/progress.c +++ b/progress.c @@ -8,11 +8,12 @@ * published by the Free Software Foundation. */ -#include "git-compat-util.h" +#include "cache.h" #include "gettext.h" #include "progress.h" #include "strbuf.h" #include "trace.h" +#include "utf8.h" #define TP_IDX_MAX 8 @@ -34,8 +35,12 @@ struct progress { uint64_t total; unsigned last_percent; unsigned delay; + unsigned sparse; struct throughput *throughput; uint64_t start_ns; + struct strbuf counters_sb; + int title_len; + int split; }; static volatile sig_atomic_t progress_update; @@ -78,41 +83,64 @@ static int is_foreground_fd(int fd) return tpgrp < 0 || tpgrp == getpgid(0); } -static int display(struct progress *progress, uint64_t n, const char *done) +static void display(struct progress *progress, uint64_t n, const char *done) { - const char *eol, *tp; + const char *tp; + struct strbuf *counters_sb = &progress->counters_sb; + int show_update = 0; + int last_count_len = counters_sb->len; if (progress->delay && (!progress_update || --progress->delay)) - return 0; + return; progress->last_value = n; tp = (progress->throughput) ? progress->throughput->display.buf : ""; - eol = done ? done : " \r"; if (progress->total) { unsigned percent = n * 100 / progress->total; if (percent != progress->last_percent || progress_update) { progress->last_percent = percent; - if (is_foreground_fd(fileno(stderr)) || done) { - fprintf(stderr, "%s: %3u%% (%"PRIuMAX"/%"PRIuMAX")%s%s", - progress->title, percent, - (uintmax_t)n, (uintmax_t)progress->total, - tp, eol); - fflush(stderr); - } - progress_update = 0; - return 1; + + strbuf_reset(counters_sb); + strbuf_addf(counters_sb, + "%3u%% (%"PRIuMAX"/%"PRIuMAX")%s", percent, + (uintmax_t)n, (uintmax_t)progress->total, + tp); + show_update = 1; } } else if (progress_update) { + strbuf_reset(counters_sb); + strbuf_addf(counters_sb, "%"PRIuMAX"%s", (uintmax_t)n, tp); + show_update = 1; + } + + if (show_update) { if (is_foreground_fd(fileno(stderr)) || done) { - fprintf(stderr, "%s: %"PRIuMAX"%s%s", - progress->title, (uintmax_t)n, tp, eol); + const char *eol = done ? done : "\r"; + size_t clear_len = counters_sb->len < last_count_len ? + last_count_len - counters_sb->len + 1 : + 0; + size_t progress_line_len = progress->title_len + + counters_sb->len + 2; + int cols = term_columns(); + + if (progress->split) { + fprintf(stderr, " %s%*s", counters_sb->buf, + (int) clear_len, eol); + } else if (!done && cols < progress_line_len) { + clear_len = progress->title_len + 1 < cols ? + cols - progress->title_len - 1 : 0; + fprintf(stderr, "%s:%*s\n %s%s", + progress->title, (int) clear_len, "", + counters_sb->buf, eol); + progress->split = 1; + } else { + fprintf(stderr, "%s: %s%*s", progress->title, + counters_sb->buf, (int) clear_len, eol); + } fflush(stderr); } progress_update = 0; - return 1; } - - return 0; } static void throughput_string(struct strbuf *buf, uint64_t total, @@ -139,12 +167,10 @@ void display_throughput(struct progress *progress, uint64_t total) now_ns = getnanotime(); if (!tp) { - progress->throughput = tp = calloc(1, sizeof(*tp)); - if (tp) { - tp->prev_total = tp->curr_total = total; - tp->prev_ns = now_ns; - strbuf_init(&tp->display, 0); - } + progress->throughput = tp = xcalloc(1, sizeof(*tp)); + tp->prev_total = tp->curr_total = total; + tp->prev_ns = now_ns; + strbuf_init(&tp->display, 0); return; } tp->curr_total = total; @@ -188,44 +214,73 @@ void display_throughput(struct progress *progress, uint64_t total) display(progress, progress->last_value, NULL); } -int display_progress(struct progress *progress, uint64_t n) +void display_progress(struct progress *progress, uint64_t n) { - return progress ? display(progress, n, NULL) : 0; + if (progress) + display(progress, n, NULL); } static struct progress *start_progress_delay(const char *title, uint64_t total, - unsigned delay) + unsigned delay, unsigned sparse) { - struct progress *progress = malloc(sizeof(*progress)); - if (!progress) { - /* unlikely, but here's a good fallback */ - fprintf(stderr, "%s...\n", title); - fflush(stderr); - return NULL; - } + struct progress *progress = xmalloc(sizeof(*progress)); progress->title = title; progress->total = total; progress->last_value = -1; progress->last_percent = -1; progress->delay = delay; + progress->sparse = sparse; progress->throughput = NULL; progress->start_ns = getnanotime(); + strbuf_init(&progress->counters_sb, 0); + progress->title_len = utf8_strwidth(title); + progress->split = 0; set_progress_signal(); return progress; } struct progress *start_delayed_progress(const char *title, uint64_t total) { - return start_progress_delay(title, total, 2); + return start_progress_delay(title, total, 2, 0); } struct progress *start_progress(const char *title, uint64_t total) { - return start_progress_delay(title, total, 0); + return start_progress_delay(title, total, 0, 0); +} + +/* + * Here "sparse" means that the caller might use some sampling criteria to + * decide when to call display_progress() rather than calling it for every + * integer value in[0 .. total). In particular, the caller might not call + * display_progress() for the last value in the range. + * + * When "sparse" is set, stop_progress() will automatically force the done + * message to show 100%. + */ +struct progress *start_sparse_progress(const char *title, uint64_t total) +{ + return start_progress_delay(title, total, 0, 1); +} + +struct progress *start_delayed_sparse_progress(const char *title, + uint64_t total) +{ + return start_progress_delay(title, total, 2, 1); +} + +static void finish_if_sparse(struct progress *progress) +{ + if (progress && + progress->sparse && + progress->last_value != progress->total) + display_progress(progress, progress->total); } void stop_progress(struct progress **p_progress) { + finish_if_sparse(*p_progress); + stop_progress_msg(p_progress, _("done")); } @@ -253,6 +308,7 @@ void stop_progress_msg(struct progress **p_progress, const char *msg) free(buf); } clear_progress_signal(); + strbuf_release(&progress->counters_sb); if (progress->throughput) strbuf_release(&progress->throughput->display); free(progress->throughput); |