Revision 976aaedca0c6f64b37f4241bf06fa7ab06095986 authored by Johannes Schindelin on 29 July 2019, 20:08:12 UTC, committed by Junio C Hamano on 29 July 2019, 21:51:43 UTC
The entire idea of generating the VS solution makes only sense if we generate it via Continuous Integration; otherwise potential users would still have to download the entire Git for Windows SDK. If we pre-generate the Visual Studio solution, Git can be built entirely within Visual Studio, and the test scripts can be run in a regular Git for Windows (e.g. the Portable Git flavor, which does not include a full GCC toolchain and therefore weighs only about a tenth of Git for Windows' SDK). So let's just add a target in the Makefile that can be used to generate said solution; The generated files will then be committed so that they can be pushed to a branch ready to check out by Visual Studio users. To make things even more useful, we also generate and commit other files that are required to run the test suite, such as templates and bin-wrappers: with this, developers can run the test suite in a regular Git Bash after building the solution in Visual Studio. Note: for this build target, we do not actually need to initialize the `vcpkg` system, so we don't. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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precompose_utf8.c
/*
* 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;
}
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