diff options
| -rw-r--r-- | dir.c | 88 | ||||
| -rwxr-xr-x | t/t7063-status-untracked-cache.sh | 81 |
2 files changed, 153 insertions, 16 deletions
@@ -2747,13 +2747,33 @@ static void set_untracked_ident(struct untracked_cache *uc) strbuf_addch(&uc->ident, 0); } -static void new_untracked_cache(struct index_state *istate) +static unsigned new_untracked_cache_flags(struct index_state *istate) +{ + struct repository *repo = istate->repo; + char *val; + + /* + * This logic is coordinated with the setting of these flags in + * wt-status.c#wt_status_collect_untracked(), and the evaluation + * of the config setting in commit.c#git_status_config() + */ + if (!repo_config_get_string(repo, "status.showuntrackedfiles", &val) && + !strcmp(val, "all")) + return 0; + + /* + * The default, if "all" is not set, is "normal" - leading us here. + * If the value is "none" then it really doesn't matter. + */ + return DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES; +} + +static void new_untracked_cache(struct index_state *istate, int flags) { struct untracked_cache *uc = xcalloc(1, sizeof(*uc)); strbuf_init(&uc->ident, 100); uc->exclude_per_dir = ".gitignore"; - /* should be the same flags used by git-status */ - uc->dir_flags = DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES; + uc->dir_flags = flags >= 0 ? flags : new_untracked_cache_flags(istate); set_untracked_ident(uc); istate->untracked = uc; istate->cache_changed |= UNTRACKED_CHANGED; @@ -2762,11 +2782,11 @@ static void new_untracked_cache(struct index_state *istate) void add_untracked_cache(struct index_state *istate) { if (!istate->untracked) { - new_untracked_cache(istate); + new_untracked_cache(istate, -1); } else { if (!ident_in_untracked(istate->untracked)) { free_untracked_cache(istate->untracked); - new_untracked_cache(istate); + new_untracked_cache(istate, -1); } } } @@ -2814,17 +2834,9 @@ static struct untracked_cache_dir *validate_untracked_cache(struct dir_struct *d if (base_len || (pathspec && pathspec->nr)) return NULL; - /* Different set of flags may produce different results */ - if (dir->flags != dir->untracked->dir_flags || - /* - * See treat_directory(), case index_nonexistent. Without - * this flag, we may need to also cache .git file content - * for the resolve_gitlink_ref() call, which we don't. - */ - !(dir->flags & DIR_SHOW_OTHER_DIRECTORIES) || - /* We don't support collecting ignore files */ - (dir->flags & (DIR_SHOW_IGNORED | DIR_SHOW_IGNORED_TOO | - DIR_COLLECT_IGNORED))) + /* We don't support collecting ignore files */ + if (dir->flags & (DIR_SHOW_IGNORED | DIR_SHOW_IGNORED_TOO | + DIR_COLLECT_IGNORED)) return NULL; /* @@ -2847,6 +2859,50 @@ static struct untracked_cache_dir *validate_untracked_cache(struct dir_struct *d return NULL; } + /* + * If the untracked structure we received does not have the same flags + * as requested in this run, we're going to need to either discard the + * existing structure (and potentially later recreate), or bypass the + * untracked cache mechanism for this run. + */ + if (dir->flags != dir->untracked->dir_flags) { + /* + * If the untracked structure we received does not have the same flags + * as configured, then we need to reset / create a new "untracked" + * structure to match the new config. + * + * Keeping the saved and used untracked cache consistent with the + * configuration provides an opportunity for frequent users of + * "git status -uall" to leverage the untracked cache by aligning their + * configuration - setting "status.showuntrackedfiles" to "all" or + * "normal" as appropriate. + * + * Previously using -uall (or setting "status.showuntrackedfiles" to + * "all") was incompatible with untracked cache and *consistently* + * caused surprisingly bad performance (with fscache and fsmonitor + * enabled) on Windows. + * + * IMPROVEMENT OPPORTUNITY: If we reworked the untracked cache storage + * to not be as bound up with the desired output in a given run, + * and instead iterated through and stored enough information to + * correctly serve both "modes", then users could get peak performance + * with or without '-uall' regardless of their + * "status.showuntrackedfiles" config. + */ + if (dir->untracked->dir_flags != new_untracked_cache_flags(istate)) { + free_untracked_cache(istate->untracked); + new_untracked_cache(istate, dir->flags); + dir->untracked = istate->untracked; + } + else { + /* + * Current untracked cache data is consistent with config, but not + * usable in this request/run; just bypass untracked cache. + */ + return NULL; + } + } + if (!dir->untracked->root) { /* Untracked cache existed but is not initialized; fix that */ FLEX_ALLOC_STR(dir->untracked->root, name, ""); diff --git a/t/t7063-status-untracked-cache.sh b/t/t7063-status-untracked-cache.sh index b89be8dc6d..9936cc329e 100755 --- a/t/t7063-status-untracked-cache.sh +++ b/t/t7063-status-untracked-cache.sh @@ -222,6 +222,87 @@ test_expect_success 'untracked cache remains after bypass' ' test_cmp ../dump.expect ../actual ' +test_expect_success 'if -uall is configured, untracked cache gets populated by default' ' + test_config status.showuntrackedfiles all && + : >../trace.output && + GIT_TRACE2_PERF="$TRASH_DIRECTORY/trace.output" \ + git status --porcelain >../actual && + iuc status --porcelain >../status.iuc && + test_cmp ../status_uall.expect ../status.iuc && + test_cmp ../status_uall.expect ../actual && + get_relevant_traces ../trace.output ../trace.relevant && + cat >../trace.expect <<EOF && + ....path: + ....node-creation:3 + ....gitignore-invalidation:1 + ....directory-invalidation:0 + ....opendir:4 +EOF + test_cmp ../trace.expect ../trace.relevant +' + +cat >../dump_uall.expect <<EOF && +info/exclude $EMPTY_BLOB +core.excludesfile $ZERO_OID +exclude_per_dir .gitignore +flags 00000000 +/ $ZERO_OID recurse valid +three +/done/ $ZERO_OID recurse valid +/dthree/ $ZERO_OID recurse valid +three +/dtwo/ $ZERO_OID recurse valid +two +EOF + +test_expect_success 'if -uall was configured, untracked cache is populated' ' + test-tool dump-untracked-cache >../actual && + test_cmp ../dump_uall.expect ../actual +' + +test_expect_success 'if -uall is configured, untracked cache is used by default' ' + test_config status.showuntrackedfiles all && + : >../trace.output && + GIT_TRACE2_PERF="$TRASH_DIRECTORY/trace.output" \ + git status --porcelain >../actual && + iuc status --porcelain >../status.iuc && + test_cmp ../status_uall.expect ../status.iuc && + test_cmp ../status_uall.expect ../actual && + get_relevant_traces ../trace.output ../trace.relevant && + cat >../trace.expect <<EOF && + ....path: + ....node-creation:0 + ....gitignore-invalidation:0 + ....directory-invalidation:0 + ....opendir:0 +EOF + test_cmp ../trace.expect ../trace.relevant +' + +# Bypassing the untracked cache here is not desirable from an +# end-user perspective, but is expected in the current design. +# The untracked cache data stored for a -all run cannot be +# correctly used in a -unormal run - it would yield incorrect +# output. +test_expect_success 'if -uall is configured, untracked cache is bypassed with -unormal' ' + test_config status.showuntrackedfiles all && + : >../trace.output && + GIT_TRACE2_PERF="$TRASH_DIRECTORY/trace.output" \ + git status -unormal --porcelain >../actual && + iuc status -unormal --porcelain >../status.iuc && + test_cmp ../status.expect ../status.iuc && + test_cmp ../status.expect ../actual && + get_relevant_traces ../trace.output ../trace.relevant && + cat >../trace.expect <<EOF && + ....path: +EOF + test_cmp ../trace.expect ../trace.relevant +' + +test_expect_success 'repopulate untracked cache for -unormal' ' + git status --porcelain +' + test_expect_success 'modify in root directory, one dir invalidation' ' : >four && test-tool chmtime =-240 four && |