diff options
Diffstat (limited to 'third_party/git/list-objects-filter-options.c')
| -rw-r--r-- | third_party/git/list-objects-filter-options.c | 324 |
1 files changed, 254 insertions, 70 deletions
diff --git a/third_party/git/list-objects-filter-options.c b/third_party/git/list-objects-filter-options.c index 1cb20c659c..256bcfbdfe 100644 --- a/third_party/git/list-objects-filter-options.c +++ b/third_party/git/list-objects-filter-options.c @@ -6,6 +6,14 @@ #include "list-objects.h" #include "list-objects-filter.h" #include "list-objects-filter-options.h" +#include "promisor-remote.h" +#include "trace.h" +#include "url.h" + +static int parse_combine_filter( + struct list_objects_filter_options *filter_options, + const char *arg, + struct strbuf *errbuf); /* * Parse value of the argument to the "filter" keyword. @@ -29,16 +37,11 @@ static int gently_parse_list_objects_filter( { const char *v0; - if (filter_options->choice) { - if (errbuf) { - strbuf_addstr( - errbuf, - _("multiple filter-specs cannot be combined")); - } - return 1; - } + if (!arg) + return 0; - filter_options->filter_spec = strdup(arg); + if (filter_options->choice) + BUG("filter_options already populated"); if (!strcmp(arg, "blob:none")) { filter_options->choice = LOFC_BLOB_NONE; @@ -52,28 +55,14 @@ static int gently_parse_list_objects_filter( } 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>'")); - } + 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->sparse_oid_name = xstrdup(v0); filter_options->choice = LOFC_SPARSE_OID; return 0; @@ -84,103 +73,298 @@ static int gently_parse_list_objects_filter( _("sparse:path filters support has been dropped")); } return 1; + + } else if (skip_prefix(arg, "combine:", &v0)) { + return parse_combine_filter(filter_options, v0, errbuf); + } /* * Please update _git_fetch() in git-completion.bash when you * add new filters */ - if (errbuf) - strbuf_addf(errbuf, _("invalid filter-spec '%s'"), arg); + 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) +static const char *RESERVED_NON_WS = "~`!@#$^&*()[]{}\\;'\",<>?"; + +static int has_reserved_character( + struct strbuf *sub_spec, struct strbuf *errbuf) { - struct strbuf buf = STRBUF_INIT; - if (gently_parse_list_objects_filter(filter_options, arg, &buf)) - die("%s", buf.buf); + const char *c = sub_spec->buf; + while (*c) { + if (*c <= ' ' || strchr(RESERVED_NON_WS, *c)) { + strbuf_addf( + errbuf, + _("must escape char in sub-filter-spec: '%c'"), + *c); + return 1; + } + c++; + } + return 0; } +static int parse_combine_subfilter( + struct list_objects_filter_options *filter_options, + struct strbuf *subspec, + struct strbuf *errbuf) +{ + size_t new_index = filter_options->sub_nr; + char *decoded; + int result; + + ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1, + filter_options->sub_alloc); + + decoded = url_percent_decode(subspec->buf); + + result = has_reserved_character(subspec, errbuf) || + gently_parse_list_objects_filter( + &filter_options->sub[new_index], decoded, errbuf); + + free(decoded); + return result; +} + +static int parse_combine_filter( + struct list_objects_filter_options *filter_options, + const char *arg, + struct strbuf *errbuf) +{ + struct strbuf **subspecs = strbuf_split_str(arg, '+', 0); + size_t sub; + int result = 0; + + if (!subspecs[0]) { + strbuf_addstr(errbuf, _("expected something after combine:")); + result = 1; + goto cleanup; + } + + for (sub = 0; subspecs[sub] && !result; sub++) { + if (subspecs[sub + 1]) { + /* + * This is not the last subspec. Remove trailing "+" so + * we can parse it. + */ + size_t last = subspecs[sub]->len - 1; + assert(subspecs[sub]->buf[last] == '+'); + strbuf_remove(subspecs[sub], last, 1); + } + result = parse_combine_subfilter( + filter_options, subspecs[sub], errbuf); + } + + filter_options->choice = LOFC_COMBINE; + +cleanup: + strbuf_list_free(subspecs); + if (result) { + list_objects_filter_release(filter_options); + memset(filter_options, 0, sizeof(*filter_options)); + } + return result; +} + +static int allow_unencoded(char ch) +{ + if (ch <= ' ' || ch == '%' || ch == '+') + return 0; + return !strchr(RESERVED_NON_WS, ch); +} + +static void filter_spec_append_urlencode( + struct list_objects_filter_options *filter, const char *raw) +{ + struct strbuf buf = STRBUF_INIT; + strbuf_addstr_urlencode(&buf, raw, allow_unencoded); + trace_printf("Add to combine filter-spec: %s\n", buf.buf); + string_list_append(&filter->filter_spec, strbuf_detach(&buf, NULL)); +} + +/* + * Changes filter_options into an equivalent LOFC_COMBINE filter options + * instance. Does not do anything if filter_options is already LOFC_COMBINE. + */ +static void transform_to_combine_type( + struct list_objects_filter_options *filter_options) +{ + assert(filter_options->choice); + if (filter_options->choice == LOFC_COMBINE) + return; + { + const int initial_sub_alloc = 2; + struct list_objects_filter_options *sub_array = + xcalloc(initial_sub_alloc, sizeof(*sub_array)); + sub_array[0] = *filter_options; + memset(filter_options, 0, sizeof(*filter_options)); + filter_options->sub = sub_array; + filter_options->sub_alloc = initial_sub_alloc; + } + filter_options->sub_nr = 1; + filter_options->choice = LOFC_COMBINE; + string_list_append(&filter_options->filter_spec, xstrdup("combine:")); + filter_spec_append_urlencode( + filter_options, + list_objects_filter_spec(&filter_options->sub[0])); + /* + * We don't need the filter_spec strings for subfilter specs, only the + * top level. + */ + string_list_clear(&filter_options->sub[0].filter_spec, /*free_util=*/0); +} + +void list_objects_filter_die_if_populated( + struct list_objects_filter_options *filter_options) +{ + if (filter_options->choice) + die(_("multiple filter-specs cannot be combined")); +} + +void parse_list_objects_filter( + struct list_objects_filter_options *filter_options, + const char *arg) +{ + struct strbuf errbuf = STRBUF_INIT; + int parse_error; + + if (!filter_options->choice) { + string_list_append(&filter_options->filter_spec, xstrdup(arg)); + + parse_error = gently_parse_list_objects_filter( + filter_options, arg, &errbuf); + } else { + /* + * Make filter_options an LOFC_COMBINE spec so we can trivially + * add subspecs to it. + */ + transform_to_combine_type(filter_options); + + string_list_append(&filter_options->filter_spec, xstrdup("+")); + filter_spec_append_urlencode(filter_options, arg); + ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1, + filter_options->sub_alloc); + + parse_error = gently_parse_list_objects_filter( + &filter_options->sub[filter_options->sub_nr - 1], arg, + &errbuf); + } + if (parse_error) + die("%s", errbuf.buf); +} + 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) { + if (unset || !arg) list_objects_filter_set_no_filter(filter_options); - return 0; + else + parse_list_objects_filter(filter_options, arg); + return 0; +} + +const char *list_objects_filter_spec(struct list_objects_filter_options *filter) +{ + if (!filter->filter_spec.nr) + BUG("no filter_spec available for this filter"); + if (filter->filter_spec.nr != 1) { + struct strbuf concatted = STRBUF_INIT; + strbuf_add_separated_string_list( + &concatted, "", &filter->filter_spec); + string_list_clear(&filter->filter_spec, /*free_util=*/0); + string_list_append( + &filter->filter_spec, strbuf_detach(&concatted, NULL)); } - return parse_list_objects_filter(filter_options, arg); + return filter->filter_spec.items[0].string; } -void expand_list_objects_filter_spec( - const struct list_objects_filter_options *filter, - struct strbuf *expanded_spec) +const char *expand_list_objects_filter_spec( + struct list_objects_filter_options *filter) { - strbuf_init(expanded_spec, strlen(filter->filter_spec)); - if (filter->choice == LOFC_BLOB_LIMIT) - strbuf_addf(expanded_spec, "blob:limit=%lu", + if (filter->choice == LOFC_BLOB_LIMIT) { + struct strbuf expanded_spec = STRBUF_INIT; + 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); + string_list_clear(&filter->filter_spec, /*free_util=*/0); + string_list_append( + &filter->filter_spec, + strbuf_detach(&expanded_spec, NULL)); + } + + return list_objects_filter_spec(filter); } void list_objects_filter_release( struct list_objects_filter_options *filter_options) { - free(filter_options->filter_spec); - free(filter_options->sparse_oid_value); + size_t sub; + + if (!filter_options) + return; + string_list_clear(&filter_options->filter_spec, /*free_util=*/0); + free(filter_options->sparse_oid_name); + for (sub = 0; sub < filter_options->sub_nr; sub++) + list_objects_filter_release(&filter_options->sub[sub]); + free(filter_options->sub); memset(filter_options, 0, sizeof(*filter_options)); } void partial_clone_register( const char *remote, - const struct list_objects_filter_options *filter_options) + 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")); + char *cfg_name; + char *filter_name; - git_config_set("core.repositoryformatversion", "1"); - git_config_set("extensions.partialclone", remote); + /* Check if it is already registered */ + if (!promisor_remote_find(remote)) { + git_config_set("core.repositoryformatversion", "1"); - repository_format_partial_clone = xstrdup(remote); + /* Add promisor config for the remote */ + cfg_name = xstrfmt("remote.%s.promisor", remote); + git_config_set(cfg_name, "true"); + free(cfg_name); + } /* * 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); + filter_name = xstrfmt("remote.%s.partialclonefilter", remote); + /* NEEDSWORK: 'expand' result leaking??? */ + git_config_set(filter_name, + expand_list_objects_filter_spec(filter_options)); + free(filter_name); + + /* Make sure the config info are reset */ + promisor_remote_reinit(); } void partial_clone_get_default_filter_spec( - struct list_objects_filter_options *filter_options) + struct list_objects_filter_options *filter_options, + const char *remote) { + struct promisor_remote *promisor = promisor_remote_find(remote); + struct strbuf errbuf = STRBUF_INIT; + /* * Parse default value, but silently ignore it if it is invalid. */ - if (!core_partial_clone_filter_default) + if (!promisor) return; + + string_list_append(&filter_options->filter_spec, + promisor->partial_clone_filter); gently_parse_list_objects_filter(filter_options, - core_partial_clone_filter_default, - NULL); + promisor->partial_clone_filter, + &errbuf); + strbuf_release(&errbuf); } |