diff options
Diffstat (limited to 'progress.c')
| -rw-r--r-- | progress.c | 177 |
1 files changed, 136 insertions, 41 deletions
@@ -8,11 +8,13 @@ * 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" +#include "config.h" #define TP_IDX_MAX 8 @@ -34,12 +36,29 @@ 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; +/* + * These are only intended for testing the progress output, i.e. exclusively + * for 'test-tool progress'. + */ +int progress_testing; +uint64_t progress_test_ns = 0; +void progress_test_force_update(void); /* To silence -Wmissing-prototypes */ +void progress_test_force_update(void) +{ + progress_update = 1; +} + + static void progress_interval(int signum) { progress_update = 1; @@ -50,6 +69,9 @@ static void set_progress_signal(void) struct sigaction sa; struct itimerval v; + if (progress_testing) + return; + progress_update = 0; memset(&sa, 0, sizeof(sa)); @@ -67,6 +89,10 @@ static void set_progress_signal(void) static void clear_progress_signal(void) { struct itimerval v = {{0,},}; + + if (progress_testing) + return; + setitimer(ITIMER_REAL, &v, NULL); signal(SIGALRM, SIG_IGN); progress_update = 0; @@ -78,41 +104,65 @@ 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; + /* The "+ 2" accounts for the ": ". */ + 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, @@ -122,8 +172,15 @@ static void throughput_string(struct strbuf *buf, uint64_t total, strbuf_addstr(buf, ", "); strbuf_humanise_bytes(buf, total); strbuf_addstr(buf, " | "); - strbuf_humanise_bytes(buf, rate * 1024); - strbuf_addstr(buf, "/s"); + strbuf_humanise_rate(buf, rate * 1024); +} + +static uint64_t progress_getnanotime(struct progress *progress) +{ + if (progress_testing) + return progress->start_ns + progress_test_ns; + else + return getnanotime(); } void display_throughput(struct progress *progress, uint64_t total) @@ -136,15 +193,13 @@ void display_throughput(struct progress *progress, uint64_t total) return; tp = progress->throughput; - now_ns = getnanotime(); + now_ns = progress_getnanotime(progress); 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 +243,83 @@ 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; } +static int get_default_delay(void) +{ + static int delay_in_secs = -1; + + if (delay_in_secs < 0) + delay_in_secs = git_env_ulong("GIT_PROGRESS_DELAY", 2); + + return delay_in_secs; +} + struct progress *start_delayed_progress(const char *title, uint64_t total) { - return start_progress_delay(title, total, 2); + return start_progress_delay(title, total, get_default_delay(), 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, get_default_delay(), 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")); } @@ -241,7 +335,7 @@ void stop_progress_msg(struct progress **p_progress, const char *msg) struct throughput *tp = progress->throughput; if (tp) { - uint64_t now_ns = getnanotime(); + uint64_t now_ns = progress_getnanotime(progress); unsigned int misecs, rate; misecs = ((now_ns - progress->start_ns) * 4398) >> 32; rate = tp->curr_total / (misecs ? misecs : 1); @@ -253,6 +347,7 @@ 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); |