static int has_cr_in_index(const char *path)
{
- int pos, len;
unsigned long sz;
- enum object_type type;
void *data;
int has_cr;
- struct index_state *istate = &the_index;
- len = strlen(path);
- pos = index_name_pos(istate, path, len);
- if (pos < 0) {
- /*
- * We might be in the middle of a merge, in which
- * case we would read stage #2 (ours).
- */
- int i;
- for (i = -pos - 1;
- (pos < 0 && i < istate->cache_nr &&
- !strcmp(istate->cache[i]->name, path));
- i++)
- if (ce_stage(istate->cache[i]) == 2)
- pos = i;
- }
- if (pos < 0)
- return 0;
- data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz);
- if (!data || type != OBJ_BLOB) {
- free(data);
+ data = read_blob_data_from_cache(path, &sz);
+ if (!data)
return 0;
- }
-
has_cr = memchr(data, '\r', sz) != NULL;
free(data);
return has_cr;
char *dst;
if (crlf_action == CRLF_BINARY ||
- (crlf_action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || !len)
+ (crlf_action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) ||
+ (src && !len))
return 0;
+ /*
+ * If we are doing a dry-run and have no source buffer, there is
+ * nothing to analyze; we must assume we would convert.
+ */
+ if (!buf && !src)
+ return 1;
+
gather_stats(src, len, &stats);
if (crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS) {
if (!stats.cr)
return 0;
+ /*
+ * At this point all of our source analysis is done, and we are sure we
+ * would convert. If we are in dry-run mode, we can give an answer.
+ */
+ if (!buf)
+ return 1;
+
/* only grow if not in place */
if (strbuf_avail(buf) + buf->len < len)
strbuf_grow(buf, len - buf->len);
struct filter_params {
const char *src;
unsigned long size;
+ int fd;
const char *cmd;
const char *path;
};
-static int filter_buffer(int in, int out, void *data)
+static int filter_buffer_or_fd(int in, int out, void *data)
{
/*
* Spawn cmd and feed the buffer contents through its stdin.
*/
- struct child_process child_process;
+ struct child_process child_process = CHILD_PROCESS_INIT;
struct filter_params *params = (struct filter_params *)data;
int write_err, status;
const char *argv[] = { NULL, NULL };
argv[0] = cmd.buf;
- memset(&child_process, 0, sizeof(child_process));
child_process.argv = argv;
child_process.use_shell = 1;
child_process.in = -1;
sigchain_push(SIGPIPE, SIG_IGN);
- write_err = (write_in_full(child_process.in, params->src, params->size) < 0);
+ if (params->src) {
+ write_err = (write_in_full(child_process.in, params->src, params->size) < 0);
+ } else {
+ write_err = copy_fd(params->fd, child_process.in);
+ }
+
if (close(child_process.in))
write_err = 1;
if (write_err)
return (write_err || status);
}
-static int apply_filter(const char *path, const char *src, size_t len,
+static int apply_filter(const char *path, const char *src, size_t len, int fd,
struct strbuf *dst, const char *cmd)
{
/*
if (!cmd)
return 0;
+ if (!dst)
+ return 1;
+
memset(&async, 0, sizeof(async));
- async.proc = filter_buffer;
+ async.proc = filter_buffer_or_fd;
async.data = ¶ms;
async.out = -1;
params.src = src;
params.size = len;
+ params.fd = fd;
params.cmd = cmd;
params.path = path;
struct convert_driver *next;
const char *smudge;
const char *clean;
+ int required;
} *user_convert, **user_convert_tail;
static int read_convert_config(const char *var, const char *value, void *cb)
{
- const char *ep, *name;
+ const char *key, *name;
int namelen;
struct convert_driver *drv;
* External conversion drivers are configured using
* "filter.<name>.variable".
*/
- if (prefixcmp(var, "filter.") || (ep = strrchr(var, '.')) == var + 6)
+ if (parse_config_key(var, "filter", &name, &namelen, &key) < 0 || !name)
return 0;
- name = var + 7;
- namelen = ep - name;
for (drv = user_convert; drv; drv = drv->next)
if (!strncmp(drv->name, name, namelen) && !drv->name[namelen])
break;
user_convert_tail = &(drv->next);
}
- ep++;
-
/*
* filter.<name>.smudge and filter.<name>.clean specifies
* the command line:
* The command-line will not be interpolated in any way.
*/
- if (!strcmp("smudge", ep))
+ if (!strcmp("smudge", key))
return git_config_string(&drv->smudge, var, value);
- if (!strcmp("clean", ep))
+ if (!strcmp("clean", key))
return git_config_string(&drv->clean, var, value);
+ if (!strcmp("required", key)) {
+ drv->required = git_config_bool(var, value);
+ return 0;
+ }
+
return 0;
}
{
char *dst, *dollar;
- if (!ident || !count_ident(src, len))
+ if (!ident || (src && !count_ident(src, len)))
return 0;
+ if (!buf)
+ return 1;
+
/* only grow if not in place */
if (strbuf_avail(buf) + buf->len < len)
strbuf_grow(buf, len - buf->len);
}
}
+int would_convert_to_git_filter_fd(const char *path)
+{
+ struct conv_attrs ca;
+
+ convert_attrs(&ca, path);
+ if (!ca.drv)
+ return 0;
+
+ /*
+ * Apply a filter to an fd only if the filter is required to succeed.
+ * We must die if the filter fails, because the original data before
+ * filtering is not available.
+ */
+ if (!ca.drv->required)
+ return 0;
+
+ return apply_filter(path, NULL, 0, -1, NULL, ca.drv->clean);
+}
+
int convert_to_git(const char *path, const char *src, size_t len,
struct strbuf *dst, enum safe_crlf checksafe)
{
int ret = 0;
const char *filter = NULL;
+ int required = 0;
struct conv_attrs ca;
convert_attrs(&ca, path);
- if (ca.drv)
+ if (ca.drv) {
filter = ca.drv->clean;
+ required = ca.drv->required;
+ }
- ret |= apply_filter(path, src, len, dst, filter);
- if (ret) {
+ ret |= apply_filter(path, src, len, -1, dst, filter);
+ if (!ret && required)
+ die("%s: clean filter '%s' failed", path, ca.drv->name);
+
+ if (ret && dst) {
src = dst->buf;
len = dst->len;
}
ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
ret |= crlf_to_git(path, src, len, dst, ca.crlf_action, checksafe);
- if (ret) {
+ if (ret && dst) {
src = dst->buf;
len = dst->len;
}
return ret | ident_to_git(path, src, len, dst, ca.ident);
}
+void convert_to_git_filter_fd(const char *path, int fd, struct strbuf *dst,
+ enum safe_crlf checksafe)
+{
+ struct conv_attrs ca;
+ convert_attrs(&ca, path);
+
+ assert(ca.drv);
+ assert(ca.drv->clean);
+
+ if (!apply_filter(path, NULL, 0, fd, dst, ca.drv->clean))
+ die("%s: clean filter '%s' failed", path, ca.drv->name);
+
+ ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
+ crlf_to_git(path, dst->buf, dst->len, dst, ca.crlf_action, checksafe);
+ ident_to_git(path, dst->buf, dst->len, dst, ca.ident);
+}
+
static int convert_to_working_tree_internal(const char *path, const char *src,
size_t len, struct strbuf *dst,
int normalizing)
{
- int ret = 0;
+ int ret = 0, ret_filter = 0;
const char *filter = NULL;
+ int required = 0;
struct conv_attrs ca;
convert_attrs(&ca, path);
- if (ca.drv)
+ if (ca.drv) {
filter = ca.drv->smudge;
+ required = ca.drv->required;
+ }
ret |= ident_to_worktree(path, src, len, dst, ca.ident);
if (ret) {
len = dst->len;
}
}
- return ret | apply_filter(path, src, len, dst, filter);
+
+ ret_filter = apply_filter(path, src, len, -1, dst, filter);
+ if (!ret_filter && required)
+ die("%s: smudge filter %s failed", path, ca.drv->name);
+
+ return ret | ret_filter;
}
int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst)
/*****************************************************************
*
- * Streaming converison support
+ * Streaming conversion support
*
*****************************************************************/
{
int i;
- if (prefixcmp(str, "$Id: "))
+ if (!skip_prefix(str, "$Id: ", &str))
return 0;
- for (i = 5; str[i]; i++) {
+ for (i = 0; str[i]; i++) {
if (isspace(str[i]) && str[i+1] != '$')
return 1;
}