static int git_futils_find_in_dirlist(
git_buf *path, const char *name, git_futils_dir_t which, const char *label)
{
size_t len;
const char *scan, *next = NULL;
const git_buf *syspath;
GITERR_CHECK_ERROR(git_futils_dirs_get(&syspath, which));
for (scan = git_buf_cstr(syspath); scan; scan = next) {
for (next = strchr(scan, GIT_PATH_LIST_SEPARATOR);
next && next > scan && next[-1] == '\\';
next = strchr(next + 1, GIT_PATH_LIST_SEPARATOR))
/* find unescaped separator or end of string */;
len = next ? (size_t)(next++ - scan) : strlen(scan);
if (!len)
continue;
GITERR_CHECK_ERROR(git_buf_set(path, scan, len));
GITERR_CHECK_ERROR(git_buf_joinpath(path, path->ptr, name));
if (git_path_exists(path->ptr))
return 0;
}
git_buf_clear(path);
giterr_set(GITERR_OS, "The %s file '%s' doesn't exist", label, name);
return GIT_ENOTFOUND;
}
int git_path_make_relative(git_buf *path, const char *parent)
{
const char *p, *q, *p_dirsep, *q_dirsep;
size_t plen = path->size, newlen, alloclen, depth = 1, i, offset;
for (p_dirsep = p = path->ptr, q_dirsep = q = parent; *p && *q; p++, q++) {
if (*p == '/' && *q == '/') {
p_dirsep = p;
q_dirsep = q;
}
else if (*p != *q)
break;
}
/* need at least 1 common path segment */
if ((p_dirsep == path->ptr || q_dirsep == parent) &&
(*p_dirsep != '/' || *q_dirsep != '/')) {
giterr_set(GITERR_INVALID,
"%s is not a parent of %s", parent, path->ptr);
return GIT_ENOTFOUND;
}
if (*p == '/' && !*q)
p++;
else if (!*p && *q == '/')
q++;
else if (!*p && !*q)
return git_buf_clear(path), 0;
else {
p = p_dirsep + 1;
q = q_dirsep + 1;
}
plen -= (p - path->ptr);
if (!*q)
return git_buf_set(path, p, plen);
for (; (q = strchr(q, '/')) && *(q + 1); q++)
depth++;
GITERR_CHECK_ALLOC_MULTIPLY(&newlen, depth, 3);
GITERR_CHECK_ALLOC_ADD(&newlen, newlen, plen);
GITERR_CHECK_ALLOC_ADD(&alloclen, newlen, 1);
/* save the offset as we might realllocate the pointer */
offset = p - path->ptr;
if (git_buf_try_grow(path, alloclen, 1, 0) < 0)
return -1;
p = path->ptr + offset;
memmove(path->ptr + (depth * 3), p, plen + 1);
for (i = 0; i < depth; i++)
memcpy(path->ptr + (i * 3), "../", 3);
path->size = newlen;
return 0;
}
static int prepare_worktree_commit_message(
git_buf* msg,
const char *user_message)
{
git_buf buf = GIT_BUF_INIT;
int error;
if ((error = git_buf_set(&buf, git_buf_cstr(msg), git_buf_len(msg))) < 0)
return error;
git_buf_clear(msg);
if (!user_message)
git_buf_printf(msg, "WIP on %s", git_buf_cstr(&buf));
else {
const char *colon;
if ((colon = strchr(git_buf_cstr(&buf), ':')) == NULL)
goto cleanup;
git_buf_puts(msg, "On ");
git_buf_put(msg, git_buf_cstr(&buf), colon - buf.ptr);
git_buf_printf(msg, ": %s\n", user_message);
}
error = (git_buf_oom(msg) || git_buf_oom(&buf)) ? -1 : 0;
cleanup:
git_buf_free(&buf);
return error;
}
static int tree_reader_read(
git_buf *out,
git_oid *out_id,
git_filemode_t *out_filemode,
git_reader *_reader,
const char *filename)
{
tree_reader *reader = (tree_reader *)_reader;
git_tree_entry *tree_entry = NULL;
git_blob *blob = NULL;
int error;
if ((error = git_tree_entry_bypath(&tree_entry, reader->tree, filename)) < 0 ||
(error = git_blob_lookup(&blob, git_tree_owner(reader->tree), git_tree_entry_id(tree_entry))) < 0 ||
(error = git_buf_set(out, git_blob_rawcontent(blob), git_blob_rawsize(blob))) < 0)
goto done;
if (out_id)
git_oid_cpy(out_id, git_tree_entry_id(tree_entry));
if (out_filemode)
*out_filemode = git_tree_entry_filemode(tree_entry);
done:
git_blob_free(blob);
git_tree_entry_free(tree_entry);
return error;
}
static int ident_insert_id(
git_buf *to, const git_buf *from, const git_filter_source *src)
{
char oid[GIT_OID_HEXSZ+1];
const char *id_start, *id_end, *from_end = from->ptr + from->size;
size_t need_size;
/* replace $Id$ with blob id */
if (!git_filter_source_id(src))
return GIT_PASSTHROUGH;
git_oid_tostr(oid, sizeof(oid), git_filter_source_id(src));
if (ident_find_id(&id_start, &id_end, from->ptr, from->size) < 0)
return GIT_PASSTHROUGH;
need_size = (size_t)(id_start - from->ptr) +
5 /* "$Id: " */ + GIT_OID_HEXSZ + 1 /* "$" */ +
(size_t)(from_end - id_end);
if (git_buf_grow(to, need_size) < 0)
return -1;
git_buf_set(to, from->ptr, (size_t)(id_start - from->ptr));
git_buf_put(to, "$Id: ", 5);
git_buf_put(to, oid, GIT_OID_HEXSZ);
git_buf_putc(to, '$');
git_buf_put(to, id_end, (size_t)(from_end - id_end));
return git_buf_oom(to) ? -1 : 0;
}
int git_path_dirload_with_stat(
const char *path,
size_t prefix_len,
unsigned int flags,
const char *start_stat,
const char *end_stat,
git_vector *contents)
{
int error;
unsigned int i;
git_path_with_stat *ps;
git_buf full = GIT_BUF_INIT;
int (*strncomp)(const char *a, const char *b, size_t sz);
size_t start_len = start_stat ? strlen(start_stat) : 0;
size_t end_len = end_stat ? strlen(end_stat) : 0, cmp_len;
if (git_buf_set(&full, path, prefix_len) < 0)
return -1;
error = git_path_dirload(
path, prefix_len, sizeof(git_path_with_stat) + 1, flags, contents);
if (error < 0) {
git_buf_free(&full);
return error;
}
strncomp = (flags & GIT_PATH_DIR_IGNORE_CASE) != 0 ?
git__strncasecmp : git__strncmp;
/* stat struct at start of git_path_with_stat, so shift path text */
git_vector_foreach(contents, i, ps) {
size_t path_len = strlen((char *)ps);
memmove(ps->path, ps, path_len + 1);
ps->path_len = path_len;
}
int git_blob__getbuf(git_buf *buffer, git_blob *blob)
{
return git_buf_set(
buffer,
git_odb_object_data(blob->odb_object),
git_odb_object_size(blob->odb_object));
}
static long diff_context_find(
const char *line,
long line_len,
char *out,
long out_size,
void *payload)
{
git_diff_find_context_payload *ctxt = payload;
if (git_buf_set(&ctxt->line, line, (size_t)line_len) < 0)
return -1;
git_buf_rtrim(&ctxt->line);
if (!ctxt->line.size)
return -1;
if (!ctxt->match_line || !ctxt->match_line(ctxt->driver, &ctxt->line))
return -1;
if (out_size > (long)ctxt->line.size)
out_size = (long)ctxt->line.size;
memcpy(out, ctxt->line.ptr, (size_t)out_size);
return out_size;
}
int git_win32__find_system_dirs(git_buf *out, const wchar_t *subdir)
{
git_buf buf = GIT_BUF_INIT;
/* directories where git.exe & git.cmd are found */
if (!win32_find_git_in_path(&buf, L"git.exe", subdir) && buf.size)
git_buf_set(out, buf.ptr, buf.size);
else
git_buf_clear(out);
if (!win32_find_git_in_path(&buf, L"git.cmd", subdir) && buf.size)
git_buf_join(out, GIT_PATH_LIST_SEPARATOR, out->ptr, buf.ptr);
/* directories where git is installed according to registry */
if (!win32_find_git_in_registry(
&buf, HKEY_CURRENT_USER, REG_MSYSGIT_INSTALL_LOCAL, subdir) && buf.size)
git_buf_join(out, GIT_PATH_LIST_SEPARATOR, out->ptr, buf.ptr);
if (!win32_find_git_in_registry(
&buf, HKEY_LOCAL_MACHINE, REG_MSYSGIT_INSTALL, subdir) && buf.size)
git_buf_join(out, GIT_PATH_LIST_SEPARATOR, out->ptr, buf.ptr);
git_buf_free(&buf);
return (git_buf_oom(out) ? -1 : 0);
}
int git_blob__getbuf(git_buf *buffer, git_blob *blob)
{
return git_buf_set(
buffer,
git_blob_rawcontent(blob),
git_blob_rawsize(blob));
}
static int refspec_transform(
git_buf *out, const char *from, const char *to, const char *name)
{
size_t to_len = to ? strlen(to) : 0;
size_t from_len = from ? strlen(from) : 0;
size_t name_len = name ? strlen(name) : 0;
git_buf_sanitize(out);
if (git_buf_set(out, to, to_len) < 0)
return -1;
if (to_len > 0) {
/* No '*' at the end of 'to' means that refspec is mapped to one
* specific branch, so no actual transformation is needed.
*/
if (out->ptr[to_len - 1] != '*')
return 0;
git_buf_shorten(out, 1); /* remove trailing '*' copied from 'to' */
}
if (from_len > 0) /* ignore trailing '*' from 'from' */
from_len--;
if (from_len > name_len)
from_len = name_len;
return git_buf_put(out, name + from_len, name_len - from_len);
}
mrb_value
mrb_Git_Buf_replace(mrb_state * mrb, mrb_value self) {
giterr_clear();
git_buf * native_self = mruby_unbox_git_buf(self);
mrb_value str = mrb_nil_value();
mrb_get_args(mrb, "S", str);
int err = git_buf_set(native_self, RSTRING_PTR(str), RSTRING_LEN(str));
RAISE_GIT_ERROR(err);
return str;
}
/*
* Based on the Android implementation, BSD licensed.
* Check http://android.git.kernel.org/
*/
int git_path_dirname_r(git_buf *buffer, const char *path)
{
const char *endp;
int is_prefix = 0, len;
/* Empty or NULL string gets treated as "." */
if (path == NULL || *path == '\0') {
path = ".";
len = 1;
goto Exit;
}
/* Strip trailing slashes */
endp = path + strlen(path) - 1;
while (endp > path && *endp == '/')
endp--;
if ((len = win32_prefix_length(path, endp - path + 1)) > 0) {
is_prefix = 1;
goto Exit;
}
/* Find the start of the dir */
while (endp > path && *endp != '/')
endp--;
/* Either the dir is "/" or there are no slashes */
if (endp == path) {
path = (*endp == '/') ? "/" : ".";
len = 1;
goto Exit;
}
do {
endp--;
} while (endp > path && *endp == '/');
if ((len = win32_prefix_length(path, endp - path + 1)) > 0) {
is_prefix = 1;
goto Exit;
}
/* Cast is safe because max path < max int */
len = (int)(endp - path + 1);
Exit:
if (buffer) {
if (git_buf_set(buffer, path, len) < 0)
return -1;
if (is_prefix && git_buf_putc(buffer, '/') < 0)
return -1;
}
return len;
}
/*
* Based on the Android implementation, BSD licensed.
* Check http://android.git.kernel.org/
*/
int git_path_dirname_r(git_buf *buffer, const char *path)
{
const char *endp;
int result, len;
/* Empty or NULL string gets treated as "." */
if (path == NULL || *path == '\0') {
path = ".";
len = 1;
goto Exit;
}
/* Strip trailing slashes */
endp = path + strlen(path) - 1;
while (endp > path && *endp == '/')
endp--;
/* Find the start of the dir */
while (endp > path && *endp != '/')
endp--;
/* Either the dir is "/" or there are no slashes */
if (endp == path) {
path = (*endp == '/') ? "/" : ".";
len = 1;
goto Exit;
}
do {
endp--;
} while (endp > path && *endp == '/');
len = endp - path +1;
#ifdef GIT_WIN32
/* Mimic unix behavior where '/.git' returns '/': 'C:/.git' will return
'C:/' here */
if (len == 2 && isalpha(path[0]) && path[1] == ':') {
len = 3;
goto Exit;
}
#endif
Exit:
result = len;
if (buffer != NULL) {
if (git_buf_set(buffer, path, len) < GIT_SUCCESS)
return git__rethrow(git_buf_lasterror(buffer),
"Could not get dirname of '%s'", path);
}
return result;
}
int git_branch_upstream__name(
git_buf *tracking_name,
git_repository *repo,
const char *canonical_branch_name)
{
const char *remote_name, *merge_name;
git_buf buf = GIT_BUF_INIT;
int error = -1;
git_remote *remote = NULL;
const git_refspec *refspec;
assert(tracking_name && canonical_branch_name);
if (!git_reference__is_branch(canonical_branch_name))
return not_a_local_branch(canonical_branch_name);
if ((error = retrieve_upstream_configuration(
&remote_name, repo, canonical_branch_name, "branch.%s.remote")) < 0)
goto cleanup;
if ((error = retrieve_upstream_configuration(
&merge_name, repo, canonical_branch_name, "branch.%s.merge")) < 0)
goto cleanup;
if (!*remote_name || !*merge_name) {
giterr_set(GITERR_REFERENCE,
"branch '%s' does not have an upstream", canonical_branch_name);
error = GIT_ENOTFOUND;
goto cleanup;
}
if (strcmp(".", remote_name) != 0) {
if ((error = git_remote_load(&remote, repo, remote_name)) < 0)
goto cleanup;
refspec = git_remote__matching_refspec(remote, merge_name);
if (!refspec) {
error = GIT_ENOTFOUND;
goto cleanup;
}
if (git_refspec_transform_r(&buf, refspec, merge_name) < 0)
goto cleanup;
} else
if (git_buf_sets(&buf, merge_name) < 0)
goto cleanup;
error = git_buf_set(tracking_name, git_buf_cstr(&buf), git_buf_len(&buf));
cleanup:
git_remote_free(remote);
git_buf_free(&buf);
return error;
}
/*
* Based on the Android implementation, BSD licensed.
* Check http://android.git.kernel.org/
*/
int git_path_dirname_r(git_buf *buffer, const char *path)
{
const char *endp;
int result, len;
/* Empty or NULL string gets treated as "." */
if (path == NULL || *path == '\0') {
path = ".";
len = 1;
goto Exit;
}
/* Strip trailing slashes */
endp = path + strlen(path) - 1;
while (endp > path && *endp == '/')
endp--;
/* Find the start of the dir */
while (endp > path && *endp != '/')
endp--;
/* Either the dir is "/" or there are no slashes */
if (endp == path) {
path = (*endp == '/') ? "/" : ".";
len = 1;
goto Exit;
}
do {
endp--;
} while (endp > path && *endp == '/');
/* Cast is safe because max path < max int */
len = (int)(endp - path + 1);
#ifdef GIT_WIN32
/* Mimic unix behavior where '/.git' returns '/': 'C:/.git' will return
'C:/' here */
if (len == 2 && isalpha(path[0]) && path[1] == ':') {
len = 3;
goto Exit;
}
#endif
Exit:
result = len;
if (buffer != NULL && git_buf_set(buffer, path, len) < 0)
return -1;
return result;
}
/* let's do some tests with larger buffers to push our limits */
void test_core_buffer__3(void)
{
git_buf buf = GIT_BUF_INIT;
/* set to string */
git_buf_set(&buf, test_4096, 4096);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(test_4096, git_buf_cstr(&buf));
/* append string */
git_buf_puts(&buf, test_4096);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(test_8192, git_buf_cstr(&buf));
/* set to string again (should overwrite - not append) */
git_buf_set(&buf, test_4096, 4096);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(test_4096, git_buf_cstr(&buf));
git_buf_free(&buf);
}
mrb_value
mrb_Git_Buf_initialize(mrb_state* mrb, mrb_value self) {
mrb_value str = mrb_nil_value();
mrb_get_args(mrb, "S", str);
git_buf* native_object = (git_buf*)calloc(1, sizeof(git_buf));
mruby_gift_git_buf_data_ptr(self, native_object);
if (!mrb_nil_p(str)) {
git_buf_set(native_object, RSTRING_PTR(str), RSTRING_LEN(str));
}
return self;
}
int git_buf_text_crlf_to_lf(git_buf *tgt, const git_buf *src)
{
const char *scan = src->ptr;
const char *scan_end = src->ptr + src->size;
const char *next = memchr(scan, '\r', src->size);
size_t new_size;
char *out;
assert(tgt != src);
if (!next)
return git_buf_set(tgt, src->ptr, src->size);
/* reduce reallocs while in the loop */
GITERR_CHECK_ALLOC_ADD(&new_size, src->size, 1);
if (git_buf_grow(tgt, new_size) < 0)
return -1;
out = tgt->ptr;
tgt->size = 0;
/* Find the next \r and copy whole chunk up to there to tgt */
for (; next; scan = next + 1, next = memchr(scan, '\r', scan_end - scan)) {
if (next > scan) {
size_t copylen = (size_t)(next - scan);
memcpy(out, scan, copylen);
out += copylen;
}
/* Do not drop \r unless it is followed by \n */
if (next + 1 == scan_end || next[1] != '\n')
*out++ = '\r';
}
/* Copy remaining input into dest */
if (scan < scan_end) {
size_t remaining = (size_t)(scan_end - scan);
memcpy(out, scan, remaining);
out += remaining;
}
tgt->size = (size_t)(out - tgt->ptr);
tgt->ptr[tgt->size] = '\0';
return 0;
}
int git_buf_text_lf_to_crlf(git_buf *tgt, const git_buf *src)
{
const char *start = src->ptr;
const char *end = start + src->size;
const char *scan = start;
const char *next = memchr(scan, '\n', src->size);
size_t alloclen;
assert(tgt != src);
if (!next)
return git_buf_set(tgt, src->ptr, src->size);
/* attempt to reduce reallocs while in the loop */
GITERR_CHECK_ALLOC_ADD(&alloclen, src->size, src->size >> 4);
GITERR_CHECK_ALLOC_ADD(&alloclen, alloclen, 1);
if (git_buf_grow(tgt, alloclen) < 0)
return -1;
tgt->size = 0;
for (; next; scan = next + 1, next = memchr(scan, '\n', end - scan)) {
size_t copylen = next - scan;
/* if we find mixed line endings, bail */
if (next > start && next[-1] == '\r') {
git_buf_free(tgt);
return GIT_PASSTHROUGH;
}
GITERR_CHECK_ALLOC_ADD(&alloclen, copylen, 3);
if (git_buf_grow_by(tgt, alloclen) < 0)
return -1;
if (next > scan) {
memcpy(tgt->ptr + tgt->size, scan, copylen);
tgt->size += copylen;
}
tgt->ptr[tgt->size++] = '\r';
tgt->ptr[tgt->size++] = '\n';
}
tgt->ptr[tgt->size] = '\0';
return git_buf_put(tgt, scan, end - scan);
}
static int diff_driver_add_patterns(
git_diff_driver *drv, const char *regex_str, int regex_flags)
{
int error = 0;
const char *scan, *end;
git_diff_driver_pattern *pat = NULL;
git_buf buf = GIT_BUF_INIT;
for (scan = regex_str; scan; scan = end) {
/* get pattern to fill in */
if ((pat = git_array_alloc(drv->fn_patterns)) == NULL) {
error = -1;
break;
}
pat->flags = regex_flags;
if (*scan == '!') {
pat->flags |= REG_NEGATE;
++scan;
}
if ((end = strchr(scan, '\n')) != NULL) {
error = git_buf_set(&buf, scan, end - scan);
end++;
} else {
error = git_buf_sets(&buf, scan);
}
if (error < 0)
break;
if ((error = regcomp(&pat->re, buf.ptr, regex_flags)) < 0) {
/* if regex fails to compile, warn? fail? */
error = giterr_set_regex(&pat->re, error);
regfree(&pat->re);
break;
}
}
if (error && pat != NULL)
(void)git_array_pop(drv->fn_patterns); /* release last item */
git_buf_free(&buf);
return error;
}
/*
* Based on the Android implementation, BSD licensed.
* Check http://android.git.kernel.org/
*/
int git_path_basename_r(git_buf *buffer, const char *path)
{
const char *endp, *startp;
int len, result;
/* Empty or NULL string gets treated as "." */
if (path == NULL || *path == '\0') {
startp = ".";
len = 1;
goto Exit;
}
/* Strip trailing slashes */
endp = path + strlen(path) - 1;
while (endp > path && *endp == '/')
endp--;
/* All slashes becomes "/" */
if (endp == path && *endp == '/') {
startp = "/";
len = 1;
goto Exit;
}
/* Find the start of the base */
startp = endp;
while (startp > path && *(startp - 1) != '/')
startp--;
len = endp - startp +1;
Exit:
result = len;
if (buffer != NULL) {
if (git_buf_set(buffer, startp, len) < GIT_SUCCESS)
return git__rethrow(git_buf_lasterror(buffer),
"Could not get basename of '%s'", path);
}
return result;
}
static int ident_remove_id(
git_buf *to, const git_buf *from)
{
const char *id_start, *id_end, *from_end = from->ptr + from->size;
size_t need_size;
if (ident_find_id(&id_start, &id_end, from->ptr, from->size) < 0)
return GIT_PASSTHROUGH;
need_size = (size_t)(id_start - from->ptr) +
4 /* "$Id$" */ + (size_t)(from_end - id_end);
if (git_buf_grow(to, need_size) < 0)
return -1;
git_buf_set(to, from->ptr, (size_t)(id_start - from->ptr));
git_buf_put(to, "$Id$", 4);
git_buf_put(to, id_end, (size_t)(from_end - id_end));
return git_buf_oom(to) ? -1 : 0;
}
static int object_file_name(
git_buf *name, const loose_backend *be, const git_oid *id)
{
size_t alloclen;
/* expand length for object root + 40 hex sha1 chars + 2 * '/' + '\0' */
GITERR_CHECK_ALLOC_ADD(&alloclen, be->objects_dirlen, GIT_OID_HEXSZ);
GITERR_CHECK_ALLOC_ADD(&alloclen, alloclen, 3);
if (git_buf_grow(name, alloclen) < 0)
return -1;
git_buf_set(name, be->objects_dir, be->objects_dirlen);
git_path_to_dir(name);
/* loose object filename: aa/aaa... (41 bytes) */
git_oid_pathfmt(name->ptr + name->size, id);
name->size += GIT_OID_HEXSZ + 1;
name->ptr[name->size] = '\0';
return 0;
}
/*
* Based on the Android implementation, BSD licensed.
* http://android.git.kernel.org/
*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
int git_path_basename_r(git_buf *buffer, const char *path)
{
const char *endp, *startp;
int len, result;
/* Empty or NULL string gets treated as "." */
if (path == NULL || *path == '\0') {
startp = ".";
len = 1;
goto Exit;
}
/* Strip trailing slashes */
endp = path + strlen(path) - 1;
while (endp > path && *endp == '/')
endp--;
/* All slashes becomes "/" */
if (endp == path && *endp == '/') {
startp = "/";
len = 1;
goto Exit;
}
/* Find the start of the base */
startp = endp;
while (startp > path && *(startp - 1) != '/')
startp--;
/* Cast is safe because max path < max int */
len = (int)(endp - startp + 1);
Exit:
result = len;
if (buffer != NULL && git_buf_set(buffer, startp, len) < 0)
return -1;
return result;
}
/* "b=name,t=name", blob_id, tree_id */
static void build_test_tree(
git_oid *out, git_repository *repo, const char *fmt, ...)
{
git_oid *id;
git_treebuilder *builder;
const char *scan = fmt, *next;
char type, delimiter;
git_filemode_t mode = GIT_FILEMODE_BLOB;
git_buf name = GIT_BUF_INIT;
va_list arglist;
cl_git_pass(git_treebuilder_new(&builder, repo, NULL)); /* start builder */
va_start(arglist, fmt);
while (*scan) {
switch (type = *scan++) {
case 't': case 'T': mode = GIT_FILEMODE_TREE; break;
case 'b': case 'B': mode = GIT_FILEMODE_BLOB; break;
default:
cl_assert(type == 't' || type == 'T' || type == 'b' || type == 'B');
}
delimiter = *scan++; /* read and skip delimiter */
for (next = scan; *next && *next != delimiter; ++next)
/* seek end */;
cl_git_pass(git_buf_set(&name, scan, (size_t)(next - scan)));
for (scan = next; *scan && (*scan == delimiter || *scan == ','); ++scan)
/* skip delimiter and optional comma */;
id = va_arg(arglist, git_oid *);
cl_git_pass(git_treebuilder_insert(NULL, builder, name.ptr, id, mode));
}
va_end(arglist);
cl_git_pass(git_treebuilder_write(out, builder));
git_treebuilder_free(builder);
git_buf_free(&name);
}
int git_path_dirload_with_stat(
const char *path,
size_t prefix_len,
git_vector *contents)
{
int error;
unsigned int i;
git_path_with_stat *ps;
git_buf full = GIT_BUF_INIT;
if (git_buf_set(&full, path, prefix_len) < 0)
return -1;
error = git_path_dirload(
path, prefix_len, sizeof(git_path_with_stat) + 1, contents);
if (error < 0) {
git_buf_free(&full);
return error;
}
git_vector_foreach(contents, i, ps) {
size_t path_len = strlen((char *)ps);
memmove(ps->path, ps, path_len + 1);
ps->path_len = path_len;
if ((error = git_buf_joinpath(&full, full.ptr, ps->path)) < 0 ||
(error = git_path_lstat(full.ptr, &ps->st)) < 0)
break;
git_buf_truncate(&full, prefix_len);
if (S_ISDIR(ps->st.st_mode)) {
ps->path[path_len] = '/';
ps->path[path_len + 1] = '\0';
}
}
int git_futils_dirs_set(git_futils_dir_t which, const char *search_path)
{
const char *expand_path = NULL;
git_buf merge = GIT_BUF_INIT;
GITERR_CHECK_ERROR(git_futils_check_selector(which));
if (search_path != NULL)
expand_path = strstr(search_path, PATH_MAGIC);
/* init with default if not yet done and needed (ignoring error) */
if ((!search_path || expand_path) &&
!git_buf_len(&git_futils__dirs[which]))
git_futils__dir_guess[which](&git_futils__dirs[which]);
/* if $PATH is not referenced, then just set the path */
if (!expand_path)
return git_buf_sets(&git_futils__dirs[which], search_path);
/* otherwise set to join(before $PATH, old value, after $PATH) */
if (expand_path > search_path)
git_buf_set(&merge, search_path, expand_path - search_path);
if (git_buf_len(&git_futils__dirs[which]))
git_buf_join(&merge, GIT_PATH_LIST_SEPARATOR,
merge.ptr, git_futils__dirs[which].ptr);
expand_path += strlen(PATH_MAGIC);
if (*expand_path)
git_buf_join(&merge, GIT_PATH_LIST_SEPARATOR, merge.ptr, expand_path);
git_buf_swap(&git_futils__dirs[which], &merge);
git_buf_free(&merge);
return git_buf_oom(&git_futils__dirs[which]) ? -1 : 0;
}
int git_branch_upstream_name(
git_buf *out,
git_repository *repo,
const char *refname)
{
git_buf remote_name = GIT_BUF_INIT;
git_buf merge_name = GIT_BUF_INIT;
git_buf buf = GIT_BUF_INIT;
int error = -1;
git_remote *remote = NULL;
const git_refspec *refspec;
git_config *config;
assert(out && refname);
git_buf_sanitize(out);
if (!git_reference__is_branch(refname))
return not_a_local_branch(refname);
if ((error = git_repository_config_snapshot(&config, repo)) < 0)
return error;
if ((error = retrieve_upstream_configuration(
&remote_name, config, refname, "branch.%s.remote")) < 0)
goto cleanup;
if ((error = retrieve_upstream_configuration(
&merge_name, config, refname, "branch.%s.merge")) < 0)
goto cleanup;
if (git_buf_len(&remote_name) == 0 || git_buf_len(&merge_name) == 0) {
giterr_set(GITERR_REFERENCE,
"branch '%s' does not have an upstream", refname);
error = GIT_ENOTFOUND;
goto cleanup;
}
if (strcmp(".", git_buf_cstr(&remote_name)) != 0) {
if ((error = git_remote_lookup(&remote, repo, git_buf_cstr(&remote_name))) < 0)
goto cleanup;
refspec = git_remote__matching_refspec(remote, git_buf_cstr(&merge_name));
if (!refspec) {
error = GIT_ENOTFOUND;
goto cleanup;
}
if (git_refspec_transform(&buf, refspec, git_buf_cstr(&merge_name)) < 0)
goto cleanup;
} else
if (git_buf_set(&buf, git_buf_cstr(&merge_name), git_buf_len(&merge_name)) < 0)
goto cleanup;
error = git_buf_set(out, git_buf_cstr(&buf), git_buf_len(&buf));
cleanup:
git_config_free(config);
git_remote_free(remote);
git_buf_free(&remote_name);
git_buf_free(&merge_name);
git_buf_free(&buf);
return error;
}
/*
* Based on the Android implementation, BSD licensed.
* Check http://android.git.kernel.org/
*/
int git_path_dirname_r(git_buf *buffer, const char *path)
{
const char *endp;
int result, len;
/* Empty or NULL string gets treated as "." */
if (path == NULL || *path == '\0') {
path = ".";
len = 1;
goto Exit;
}
/* Strip trailing slashes */
endp = path + strlen(path) - 1;
while (endp > path && *endp == '/')
endp--;
/* Find the start of the dir */
while (endp > path && *endp != '/')
endp--;
/* Either the dir is "/" or there are no slashes */
if (endp == path) {
path = (*endp == '/') ? "/" : ".";
len = 1;
goto Exit;
}
do {
endp--;
} while (endp > path && *endp == '/');
/* Cast is safe because max path < max int */
len = (int)(endp - path + 1);
#ifdef GIT_WIN32
/* Mimic unix behavior where '/.git' returns '/': 'C:/.git' will return
'C:/' here */
if (len == 2 && LOOKS_LIKE_DRIVE_PREFIX(path)) {
len = 3;
goto Exit;
}
/* Similarly checks if we're dealing with a network computer name
'//computername/.git' will return '//computername/' */
if (looks_like_network_computer_name(path, len)) {
len++;
goto Exit;
}
#endif
Exit:
result = len;
if (buffer != NULL && git_buf_set(buffer, path, len) < 0)
return -1;
return result;
}
