diff options
Diffstat (limited to 'src/path.c')
| -rw-r--r-- | src/path.c | 63 |
1 files changed, 62 insertions, 1 deletions
diff --git a/src/path.c b/src/path.c index 2690cd8e8..e0b00a086 100644 --- a/src/path.c +++ b/src/path.c @@ -799,8 +799,11 @@ int git_path_iconv(git_path_iconv_t *ic, char **in, size_t *inlen) if (rv != (size_t)-1) break; + /* if we cannot convert the data (probably because iconv thinks + * it is not valid UTF-8 source data), then use original data + */ if (errno != E2BIG) - goto fail; + return 0; /* make space for 2x the remaining data to be converted * (with per retry overhead to avoid infinite loops) @@ -823,6 +826,64 @@ fail: return -1; } +static const char *nfc_file = "\xC3\x85\x73\x74\x72\xC3\xB6\x6D.XXXXXX"; +static const char *nfd_file = "\x41\xCC\x8A\x73\x74\x72\x6F\xCC\x88\x6D.XXXXXX"; + +/* Check if the platform is decomposing unicode data for us. We will + * emulate core Git and prefer to use precomposed unicode data internally + * on these platforms, composing the decomposed unicode on the fly. + * + * This mainly happens on the Mac where HDFS stores filenames as + * decomposed unicode. Even on VFAT and SAMBA file systems, the Mac will + * return decomposed unicode from readdir() even when the actual + * filesystem is storing precomposed unicode. + */ +bool git_path_does_fs_decompose_unicode(const char *root) +{ + git_buf path = GIT_BUF_INIT; + int fd; + bool found_decomposed = false; + char tmp[6]; + + /* Create a file using a precomposed path and then try to find it + * using the decomposed name. If the lookup fails, then we will mark + * that we should precompose unicode for this repository. + */ + if (git_buf_joinpath(&path, root, nfc_file) < 0 || + (fd = p_mkstemp(path.ptr)) < 0) + goto done; + p_close(fd); + + /* record trailing digits generated by mkstemp */ + memcpy(tmp, path.ptr + path.size - sizeof(tmp), sizeof(tmp)); + + /* try to look up as NFD path */ + if (git_buf_joinpath(&path, root, nfd_file) < 0) + goto done; + memcpy(path.ptr + path.size - sizeof(tmp), tmp, sizeof(tmp)); + + found_decomposed = git_path_exists(path.ptr); + + /* remove temporary file (using original precomposed path) */ + if (git_buf_joinpath(&path, root, nfc_file) < 0) + goto done; + memcpy(path.ptr + path.size - sizeof(tmp), tmp, sizeof(tmp)); + + (void)p_unlink(path.ptr); + +done: + git_buf_free(&path); + return found_decomposed; +} + +#else + +bool git_path_does_fs_decompose_unicode(const char *root) +{ + GIT_UNUSED(root); + return false; +} + #endif #if defined(__sun) || defined(__GNU__) |