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#include "cache.h"
#include "commit.h"
#include "config.h"
#include "revision.h"
#include "argv-array.h"
#include "list-objects.h"
#include "list-objects-filter.h"
#include "list-objects-filter-options.h"
/*
* Parse value of the argument to the "filter" keyword.
* On the command line this looks like:
* --filter=<arg>
* and in the pack protocol as:
* "filter" SP <arg>
*
* The filter keyword will be used by many commands.
* See Documentation/rev-list-options.txt for allowed values for <arg>.
*
* Capture the given arg as the "filter_spec". This can be forwarded to
* subordinate commands when necessary (although it's better to pass it through
* expand_list_objects_filter_spec() first). We also "intern" the arg for the
* convenience of the current command.
*/
static int gently_parse_list_objects_filter(
struct list_objects_filter_options *filter_options,
const char *arg,
struct strbuf *errbuf)
{
const char *v0;
if (filter_options->choice) {
if (errbuf) {
strbuf_addstr(
errbuf,
_("multiple filter-specs cannot be combined"));
}
return 1;
}
filter_options->filter_spec = strdup(arg);
if (!strcmp(arg, "blob:none")) {
filter_options->choice = LOFC_BLOB_NONE;
return 0;
} else if (skip_prefix(arg, "blob:limit=", &v0)) {
if (git_parse_ulong(v0, &filter_options->blob_limit_value)) {
filter_options->choice = LOFC_BLOB_LIMIT;
return 0;
}
} else if (skip_prefix(arg, "tree:", &v0)) {
if (!git_parse_ulong(v0, &filter_options->tree_exclude_depth)) {
if (errbuf) {
strbuf_addstr(
errbuf,
_("expected 'tree:<depth>'"));
}
return 1;
}
filter_options->choice = LOFC_TREE_DEPTH;
return 0;
} else if (skip_prefix(arg, "sparse:oid=", &v0)) {
struct object_context oc;
struct object_id sparse_oid;
/*
* Try to parse <oid-expression> into an OID for the current
* command, but DO NOT complain if we don't have the blob or
* ref locally.
*/
if (!get_oid_with_context(the_repository, v0, GET_OID_BLOB,
&sparse_oid, &oc))
filter_options->sparse_oid_value = oiddup(&sparse_oid);
filter_options->choice = LOFC_SPARSE_OID;
return 0;
} else if (skip_prefix(arg, "sparse:path=", &v0)) {
if (errbuf) {
strbuf_addstr(
errbuf,
_("sparse:path filters support has been dropped"));
}
return 1;
}
/*
* Please update _git_fetch() in git-completion.bash when you
* add new filters
*/
if (errbuf)
strbuf_addf(errbuf, _("invalid filter-spec '%s'"), arg);
memset(filter_options, 0, sizeof(*filter_options));
return 1;
}
int parse_list_objects_filter(struct list_objects_filter_options *filter_options,
const char *arg)
{
struct strbuf buf = STRBUF_INIT;
if (gently_parse_list_objects_filter(filter_options, arg, &buf))
die("%s", buf.buf);
return 0;
}
int opt_parse_list_objects_filter(const struct option *opt,
const char *arg, int unset)
{
struct list_objects_filter_options *filter_options = opt->value;
if (unset || !arg) {
list_objects_filter_set_no_filter(filter_options);
return 0;
}
return parse_list_objects_filter(filter_options, arg);
}
void expand_list_objects_filter_spec(
const struct list_objects_filter_options *filter,
struct strbuf *expanded_spec)
{
strbuf_init(expanded_spec, strlen(filter->filter_spec));
if (filter->choice == LOFC_BLOB_LIMIT)
strbuf_addf(expanded_spec, "blob:limit=%lu",
filter->blob_limit_value);
else if (filter->choice == LOFC_TREE_DEPTH)
strbuf_addf(expanded_spec, "tree:%lu",
filter->tree_exclude_depth);
else
strbuf_addstr(expanded_spec, filter->filter_spec);
}
void list_objects_filter_release(
struct list_objects_filter_options *filter_options)
{
free(filter_options->filter_spec);
free(filter_options->sparse_oid_value);
memset(filter_options, 0, sizeof(*filter_options));
}
void partial_clone_register(
const char *remote,
const struct list_objects_filter_options *filter_options)
{
/*
* Record the name of the partial clone remote in the
* config and in the global variable -- the latter is
* used throughout to indicate that partial clone is
* enabled and to expect missing objects.
*/
if (repository_format_partial_clone &&
*repository_format_partial_clone &&
strcmp(remote, repository_format_partial_clone))
die(_("cannot change partial clone promisor remote"));
git_config_set("core.repositoryformatversion", "1");
git_config_set("extensions.partialclone", remote);
repository_format_partial_clone = xstrdup(remote);
/*
* Record the initial filter-spec in the config as
* the default for subsequent fetches from this remote.
*/
core_partial_clone_filter_default =
xstrdup(filter_options->filter_spec);
git_config_set("core.partialclonefilter",
core_partial_clone_filter_default);
}
void partial_clone_get_default_filter_spec(
struct list_objects_filter_options *filter_options)
{
/*
* Parse default value, but silently ignore it if it is invalid.
*/
if (!core_partial_clone_filter_default)
return;
gently_parse_list_objects_filter(filter_options,
core_partial_clone_filter_default,
NULL);
}
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