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GeezerVison is showing github.com — git/copy.c at master · llogs/git Expand file tree/ Copy pathcopy.cMore file actions 67 lines (60 loc) · 1.35 KB / Copy pathcopy.cFile metadata and controls67 lines (60 loc) · 1.35 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 #include "cache.h" int copy_fd(int ifd, int ofd) { while (1) { char buffer[8192]; ssize_t len = xread(ifd, buffer, sizeof(buffer)); if (!len) break; if (len < 0) return COPY_READ_ERROR; if (write_in_full(ofd, buffer, len) < 0) return COPY_WRITE_ERROR; } return 0; } static int copy_times(const char *dst, const char *src) { struct stat st; struct utimbuf times; if (stat(src, &st) < 0) return -1; times.actime = st.st_atime; times.modtime = st.st_mtime; if (utime(dst, ×) < 0) return -1; return 0; } int copy_file(const char *dst, const char *src, int mode) { int fdi, fdo, status; mode = (mode & 0111) ? 0777 : 0666; if ((fdi = open(src, O_RDONLY)) < 0) return fdi; if ((fdo = open(dst, O_WRONLY | O_CREAT | O_EXCL, mode)) < 0) { close(fdi); return fdo; } status = copy_fd(fdi, fdo); switch (status) { case COPY_READ_ERROR: error("copy-fd: read returned %s", strerror(errno)); break; case COPY_WRITE_ERROR: error("copy-fd: write returned %s", strerror(errno)); break; } close(fdi); if (close(fdo) != 0) return error("%s: close error: %s", dst, strerror(errno)); if (!status && adjust_shared_perm(dst)) return -1; return status; } int copy_file_with_time(const char *dst, const char *src, int mode) { int status = copy_file(dst, src, mode); if (!status) return copy_times(dst, src); return status; } |
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