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8a7bc5f55c
There seems to be a problem with Microsoft's utime() implementation. With this implementation we ensure that the files times written are UTC. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
#include "git-compat-util.h"
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#include <utime.h>
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static const char usage_str[] = "(+|=|=+|=-|-)<seconds> <file>...";
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#ifdef __MINGW32__
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static inline void time_t_to_filetime(time_t t, FILETIME *ft)
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{
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long long winTime = t * 10000000LL + 116444736000000000LL;
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ft->dwLowDateTime = winTime;
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ft->dwHighDateTime = winTime >> 32;
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}
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int git_utime (const char *file_name, const struct utimbuf *times)
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{
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FILETIME mft, aft;
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int fh, rc;
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/* must have write permission */
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if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
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return -1;
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time_t_to_filetime(times->modtime, &mft);
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time_t_to_filetime(times->actime, &aft);
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if (!SetFileTime(_get_osfhandle(fh), NULL, &aft, &mft)) {
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errno = EINVAL;
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rc = -1;
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} else
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rc = 0;
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close(fh);
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return rc;
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}
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int git_utime(const char *file_name, const struct utimbuf *times);
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#define utime git_utime
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#endif /* __MINGW32__ */
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int main(int argc, const char *argv[])
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{
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int i;
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int set_eq;
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long int set_time;
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char *test;
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const char *timespec;
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if (argc < 3)
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goto usage;
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timespec = argv[1];
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set_eq = (*timespec == '=') ? 1 : 0;
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if (set_eq) {
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timespec++;
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if (*timespec == '+') {
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set_eq = 2; /* relative "in the future" */
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timespec++;
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}
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}
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set_time = strtol(timespec, &test, 10);
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if (*test) {
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fprintf(stderr, "Not a base-10 integer: %s\n", argv[1] + 1);
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goto usage;
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}
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if ((set_eq && set_time < 0) || set_eq == 2) {
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time_t now = time(NULL);
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set_time += now;
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}
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for (i = 2; i < argc; i++) {
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struct stat sb;
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struct utimbuf utb;
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if (stat(argv[i], &sb) < 0) {
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fprintf(stderr, "Failed to stat %s: %s\n",
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argv[i], strerror(errno));
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return -1;
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}
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utb.actime = sb.st_atime;
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utb.modtime = set_eq ? set_time : sb.st_mtime + set_time;
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if (utime(argv[i], &utb) < 0) {
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fprintf(stderr, "Failed to modify time on %s: %s\n",
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argv[i], strerror(errno));
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return -1;
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}
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}
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return 0;
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usage:
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fprintf(stderr, "Usage: %s %s\n", argv[0], usage_str);
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return -1;
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}
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