diff options
Diffstat (limited to 'entry.c')
| -rw-r--r-- | entry.c | 162 |
1 files changed, 157 insertions, 5 deletions
@@ -2,6 +2,7 @@ #include "blob.h" #include "dir.h" #include "streaming.h" +#include "submodule.h" static void create_directories(const char *path, int path_len, const struct checkout *state) @@ -136,6 +137,105 @@ static int streaming_write_entry(const struct cache_entry *ce, char *path, return result; } +void enable_delayed_checkout(struct checkout *state) +{ + if (!state->delayed_checkout) { + state->delayed_checkout = xmalloc(sizeof(*state->delayed_checkout)); + state->delayed_checkout->state = CE_CAN_DELAY; + string_list_init(&state->delayed_checkout->filters, 0); + string_list_init(&state->delayed_checkout->paths, 0); + } +} + +static int remove_available_paths(struct string_list_item *item, void *cb_data) +{ + struct string_list *available_paths = cb_data; + struct string_list_item *available; + + available = string_list_lookup(available_paths, item->string); + if (available) + available->util = (void *)item->string; + return !available; +} + +int finish_delayed_checkout(struct checkout *state) +{ + int errs = 0; + struct string_list_item *filter, *path; + struct delayed_checkout *dco = state->delayed_checkout; + + if (!state->delayed_checkout) + return errs; + + dco->state = CE_RETRY; + while (dco->filters.nr > 0) { + for_each_string_list_item(filter, &dco->filters) { + struct string_list available_paths = STRING_LIST_INIT_NODUP; + + if (!async_query_available_blobs(filter->string, &available_paths)) { + /* Filter reported an error */ + errs = 1; + filter->string = ""; + continue; + } + if (available_paths.nr <= 0) { + /* + * Filter responded with no entries. That means + * the filter is done and we can remove the + * filter from the list (see + * "string_list_remove_empty_items" call below). + */ + filter->string = ""; + continue; + } + + /* + * In dco->paths we store a list of all delayed paths. + * The filter just send us a list of available paths. + * Remove them from the list. + */ + filter_string_list(&dco->paths, 0, + &remove_available_paths, &available_paths); + + for_each_string_list_item(path, &available_paths) { + struct cache_entry* ce; + + if (!path->util) { + error("external filter '%s' signaled that '%s' " + "is now available although it has not been " + "delayed earlier", + filter->string, path->string); + errs |= 1; + + /* + * Do not ask the filter for available blobs, + * again, as the filter is likely buggy. + */ + filter->string = ""; + continue; + } + ce = index_file_exists(state->istate, path->string, + strlen(path->string), 0); + errs |= (ce ? checkout_entry(ce, state, NULL) : 1); + } + } + string_list_remove_empty_items(&dco->filters, 0); + } + string_list_clear(&dco->filters, 0); + + /* At this point we should not have any delayed paths anymore. */ + errs |= dco->paths.nr; + for_each_string_list_item(path, &dco->paths) { + error("'%s' was not filtered properly", path->string); + } + string_list_clear(&dco->paths, 0); + + free(dco); + state->delayed_checkout = NULL; + + return errs; +} + static int write_entry(struct cache_entry *ce, char *path, const struct checkout *state, int to_tempfile) { @@ -146,6 +246,7 @@ static int write_entry(struct cache_entry *ce, unsigned long size; size_t wrote, newsize = 0; struct stat st; + const struct submodule *sub; if (ce_mode_s_ifmt == S_IFREG) { struct stream_filter *filter = get_stream_filter(ce->name, @@ -177,11 +278,34 @@ static int write_entry(struct cache_entry *ce, /* * Convert from git internal format to working tree format */ - if (ce_mode_s_ifmt == S_IFREG && - convert_to_working_tree(ce->name, new, size, &buf)) { - free(new); - new = strbuf_detach(&buf, &newsize); - size = newsize; + if (ce_mode_s_ifmt == S_IFREG) { + struct delayed_checkout *dco = state->delayed_checkout; + if (dco && dco->state != CE_NO_DELAY) { + /* Do not send the blob in case of a retry. */ + if (dco->state == CE_RETRY) { + new = NULL; + size = 0; + } + ret = async_convert_to_working_tree( + ce->name, new, size, &buf, dco); + if (ret && string_list_has_string(&dco->paths, ce->name)) { + free(new); + goto finish; + } + } else + ret = convert_to_working_tree( + ce->name, new, size, &buf); + + if (ret) { + free(new); + new = strbuf_detach(&buf, &newsize); + size = newsize; + } + /* + * No "else" here as errors from convert are OK at this + * point. If the error would have been fatal (e.g. + * filter is required), then we would have died already. + */ } fd = open_output_fd(path, ce, to_tempfile); @@ -203,6 +327,11 @@ static int write_entry(struct cache_entry *ce, return error("cannot create temporary submodule %s", path); if (mkdir(path, 0777) < 0) return error("cannot create submodule directory %s", path); + sub = submodule_from_ce(ce); + if (sub) + return submodule_move_head(ce->name, + NULL, oid_to_hex(&ce->oid), + state->force ? SUBMODULE_MOVE_HEAD_FORCE : 0); break; default: return error("unknown file mode for %s in index", path); @@ -259,7 +388,30 @@ int checkout_entry(struct cache_entry *ce, strbuf_add(&path, ce->name, ce_namelen(ce)); if (!check_path(path.buf, path.len, &st, state->base_dir_len)) { + const struct submodule *sub; unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE); + /* + * Needs to be checked before !changed returns early, + * as the possibly empty directory was not changed + */ + sub = submodule_from_ce(ce); + if (sub) { + int err; + if (!is_submodule_populated_gently(ce->name, &err)) { + struct stat sb; + if (lstat(ce->name, &sb)) + die(_("could not stat file '%s'"), ce->name); + if (!(st.st_mode & S_IFDIR)) + unlink_or_warn(ce->name); + + return submodule_move_head(ce->name, + NULL, oid_to_hex(&ce->oid), 0); + } else + return submodule_move_head(ce->name, + "HEAD", oid_to_hex(&ce->oid), + state->force ? SUBMODULE_MOVE_HEAD_FORCE : 0); + } + if (!changed) return 0; if (!state->force) { |