[PATCH 09/20] untracked cache: mark what dirs should be recursed/saved
From: Nguyễn Thái Ngọc Duy <hidden>
Date: 2016-06-15 23:01:02
Subsystem:
the rest · Maintainer:
Linus Torvalds
Suppose untracked cache stores that in directory A we need to recurse in A/B and A/C. Then A/B is removed. When read_directory() is executed again, of course we detect that we only need to recurse in A/C when in A, not A/B any more. We need a way though to let the write phase know not to write A/B down. Which is the purpose of this bit. We can't simply destroy A/B when A is invalidated, because at that moment we don't know if A/B is deleted or not. --- dir.c | 15 ++++++++++++++- dir.h | 1 + 2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/dir.c b/dir.c
index 205f323..63fa960 100644
--- a/dir.c
+++ b/dir.c@@ -591,6 +591,7 @@ static void do_invalidate_gitignore(struct untracked_cache_dir *dir) int i; dir->valid = 0; dir->untracked_nr = 0; + /* dir->recurse = 0; ? */ for (i = 0; i < dir->dirs_nr; i++) do_invalidate_gitignore(dir->dirs[i]); }
@@ -605,9 +606,12 @@ static void invalidate_gitignore(struct untracked_cache *uc, static void invalidate_directory(struct untracked_cache *uc, struct untracked_cache_dir *dir) { + int i; uc->dir_invalidated++; dir->valid = 0; dir->untracked_nr = 0; + for (i = 0; i < dir->dirs_nr; i++) + dir->dirs[i]->recurse = 0; } static int add_excludes(const char *fname,
@@ -1581,6 +1585,10 @@ int read_cached_dir(struct cached_dir *cdir) } while (cdir->nr_dirs < cdir->untracked->dirs_nr) { struct untracked_cache_dir *d = cdir->untracked->dirs[cdir->nr_dirs]; + if (!d->recurse) { + cdir->nr_dirs++; + continue; + } cdir->ucd = d; cdir->nr_dirs++; return 0;
@@ -1602,8 +1610,10 @@ static void close_cached_dir(struct cached_dir *cdir) * We have gone through this directory and found no untracked * entries. Set untracked_nr to zero to make it valid. */ - if (cdir->untracked && !cdir->untracked->valid) + if (cdir->untracked) { cdir->untracked->valid = 1; + cdir->untracked->recurse = 1; + } } /*
@@ -1849,6 +1859,9 @@ static struct untracked_cache_dir *validate_untracked_cache(struct dir_struct *d hashcpy(dir->untracked->excludes_file_sha1, dir->excludes_file_sha1); } + + /* Make sure this directory is not dropped out at saving phase */ + root->recurse = 1; return root; }
diff --git a/dir.h b/dir.h
index 8955945..5dde37b 100644
--- a/dir.h
+++ b/dir.h@@ -108,6 +108,7 @@ struct untracked_cache_dir { /* null SHA-1 means this directory does not have .gitignore */ unsigned char exclude_sha1[20]; struct stat_data stat_data; + unsigned int recurse : 1; unsigned int check_only : 1; unsigned int valid : 1; unsigned int untracked_nr : 29;
--
1.9.1.346.ga2b5940