diff options
Diffstat (limited to 'third_party/git/compat/precompose_utf8.c')
| -rw-r--r-- | third_party/git/compat/precompose_utf8.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/third_party/git/compat/precompose_utf8.c b/third_party/git/compat/precompose_utf8.c deleted file mode 100644 index 136250fbf6c4..000000000000 --- a/third_party/git/compat/precompose_utf8.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * Converts filenames from decomposed unicode into precomposed unicode. - * Used on MacOS X. - */ - -#define PRECOMPOSE_UNICODE_C - -#include "cache.h" -#include "config.h" -#include "utf8.h" -#include "precompose_utf8.h" - -typedef char *iconv_ibp; -static const char *repo_encoding = "UTF-8"; -static const char *path_encoding = "UTF-8-MAC"; - -static size_t has_non_ascii(const char *s, size_t maxlen, size_t *strlen_c) -{ - const uint8_t *ptr = (const uint8_t *)s; - size_t strlen_chars = 0; - size_t ret = 0; - - if (!ptr || !*ptr) - return 0; - - while (*ptr && maxlen) { - if (*ptr & 0x80) - ret++; - strlen_chars++; - ptr++; - maxlen--; - } - if (strlen_c) - *strlen_c = strlen_chars; - - return ret; -} - - -void probe_utf8_pathname_composition(void) -{ - struct strbuf path = STRBUF_INIT; - static const char *auml_nfc = "\xc3\xa4"; - static const char *auml_nfd = "\x61\xcc\x88"; - int output_fd; - if (precomposed_unicode != -1) - return; /* We found it defined in the global config, respect it */ - git_path_buf(&path, "%s", auml_nfc); - output_fd = open(path.buf, O_CREAT|O_EXCL|O_RDWR, 0600); - if (output_fd >= 0) { - close(output_fd); - git_path_buf(&path, "%s", auml_nfd); - precomposed_unicode = access(path.buf, R_OK) ? 0 : 1; - git_config_set("core.precomposeunicode", - precomposed_unicode ? "true" : "false"); - git_path_buf(&path, "%s", auml_nfc); - if (unlink(path.buf)) - die_errno(_("failed to unlink '%s'"), path.buf); - } - strbuf_release(&path); -} - - -void precompose_argv(int argc, const char **argv) -{ - int i = 0; - const char *oldarg; - char *newarg; - iconv_t ic_precompose; - - if (precomposed_unicode != 1) - return; - - ic_precompose = iconv_open(repo_encoding, path_encoding); - if (ic_precompose == (iconv_t) -1) - return; - - while (i < argc) { - size_t namelen; - oldarg = argv[i]; - if (has_non_ascii(oldarg, (size_t)-1, &namelen)) { - newarg = reencode_string_iconv(oldarg, namelen, ic_precompose, 0, NULL); - if (newarg) - argv[i] = newarg; - } - i++; - } - iconv_close(ic_precompose); -} - - -PREC_DIR *precompose_utf8_opendir(const char *dirname) -{ - PREC_DIR *prec_dir = xmalloc(sizeof(PREC_DIR)); - prec_dir->dirent_nfc = xmalloc(sizeof(dirent_prec_psx)); - prec_dir->dirent_nfc->max_name_len = sizeof(prec_dir->dirent_nfc->d_name); - - prec_dir->dirp = opendir(dirname); - if (!prec_dir->dirp) { - free(prec_dir->dirent_nfc); - free(prec_dir); - return NULL; - } else { - int ret_errno = errno; - prec_dir->ic_precompose = iconv_open(repo_encoding, path_encoding); - /* if iconv_open() fails, die() in readdir() if needed */ - errno = ret_errno; - } - - return prec_dir; -} - -struct dirent_prec_psx *precompose_utf8_readdir(PREC_DIR *prec_dir) -{ - struct dirent *res; - res = readdir(prec_dir->dirp); - if (res) { - size_t namelenz = strlen(res->d_name) + 1; /* \0 */ - size_t new_maxlen = namelenz; - - int ret_errno = errno; - - if (new_maxlen > prec_dir->dirent_nfc->max_name_len) { - size_t new_len = sizeof(dirent_prec_psx) + new_maxlen - - sizeof(prec_dir->dirent_nfc->d_name); - - prec_dir->dirent_nfc = xrealloc(prec_dir->dirent_nfc, new_len); - prec_dir->dirent_nfc->max_name_len = new_maxlen; - } - - prec_dir->dirent_nfc->d_ino = res->d_ino; - prec_dir->dirent_nfc->d_type = res->d_type; - - if ((precomposed_unicode == 1) && has_non_ascii(res->d_name, (size_t)-1, NULL)) { - if (prec_dir->ic_precompose == (iconv_t)-1) { - die("iconv_open(%s,%s) failed, but needed:\n" - " precomposed unicode is not supported.\n" - " If you want to use decomposed unicode, run\n" - " \"git config core.precomposeunicode false\"\n", - repo_encoding, path_encoding); - } else { - iconv_ibp cp = (iconv_ibp)res->d_name; - size_t inleft = namelenz; - char *outpos = &prec_dir->dirent_nfc->d_name[0]; - size_t outsz = prec_dir->dirent_nfc->max_name_len; - errno = 0; - iconv(prec_dir->ic_precompose, &cp, &inleft, &outpos, &outsz); - if (errno || inleft) { - /* - * iconv() failed and errno could be E2BIG, EILSEQ, EINVAL, EBADF - * MacOS X avoids illegal byte sequences. - * If they occur on a mounted drive (e.g. NFS) it is not worth to - * die() for that, but rather let the user see the original name - */ - namelenz = 0; /* trigger strlcpy */ - } - } - } else - namelenz = 0; - - if (!namelenz) - strlcpy(prec_dir->dirent_nfc->d_name, res->d_name, - prec_dir->dirent_nfc->max_name_len); - - errno = ret_errno; - return prec_dir->dirent_nfc; - } - return NULL; -} - - -int precompose_utf8_closedir(PREC_DIR *prec_dir) -{ - int ret_value; - int ret_errno; - ret_value = closedir(prec_dir->dirp); - ret_errno = errno; - if (prec_dir->ic_precompose != (iconv_t)-1) - iconv_close(prec_dir->ic_precompose); - free(prec_dir->dirent_nfc); - free(prec_dir); - errno = ret_errno; - return ret_value; -} |