diff options
Diffstat (limited to 'usage.c')
| -rw-r--r-- | usage.c | 31 |
1 files changed, 18 insertions, 13 deletions
@@ -6,23 +6,22 @@ #include "git-compat-util.h" #include "cache.h" +static FILE *error_handle; +static int tweaked_error_buffering; + void vreportf(const char *prefix, const char *err, va_list params) { - char msg[4096]; - vsnprintf(msg, sizeof(msg), err, params); - fprintf(stderr, "%s%s\n", prefix, msg); -} + FILE *fh = error_handle ? error_handle : stderr; -void vwritef(int fd, const char *prefix, const char *err, va_list params) -{ - char msg[4096]; - int len = vsnprintf(msg, sizeof(msg), err, params); - if (len > sizeof(msg)) - len = sizeof(msg); + fflush(fh); + if (!tweaked_error_buffering) { + setvbuf(fh, NULL, _IOLBF, 0); + tweaked_error_buffering = 1; + } - write_in_full(fd, prefix, strlen(prefix)); - write_in_full(fd, msg, len); - write_in_full(fd, "\n", 1); + fputs(prefix, fh); + vfprintf(fh, err, params); + fputc('\n', fh); } static NORETURN void usage_builtin(const char *err, va_list params) @@ -76,6 +75,12 @@ void set_die_is_recursing_routine(int (*routine)(void)) die_is_recursing = routine; } +void set_error_handle(FILE *fh) +{ + error_handle = fh; + tweaked_error_buffering = 0; +} + void NORETURN usagef(const char *err, ...) { va_list params; |