[PATCH v2 23/24] treewide: reduce includes of cache.h in other headers

["Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>]

From: Elijah Newren <newren@gmail.com>

We had a handful of headers including cache.h that didn't need to
anymore.  Drop those includes and replace them with includes of
smaller files, or forward declarations.  However, note that two .c
files now need to directly include cache.h, though they should have
been including it all along given they are directly using structs
defined in it.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 archive.h        | 2 +-
 chdir-notify.c   | 3 ++-
 quote.c          | 3 ++-
 refs/ref-cache.h | 2 +-
 rerere.c         | 2 +-
 resolve-undo.h   | 7 ++++++-
 revision.c       | 2 +-
 split-index.h    | 2 +-
 8 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/archive.h b/archive.h
index f96839ef383..3a4bdfbd078 100644
--- a/archive.h
+++ b/archive.h
@@ -1,9 +1,9 @@
 #ifndef ARCHIVE_H
 #define ARCHIVE_H
 
-#include "cache.h"
 #include "object-name.h"
 #include "pathspec.h"
+#include "string-list.h"
 
 struct repository;
 struct pretty_print_context;
diff --git a/chdir-notify.c b/chdir-notify.c
index 8e38cd6f3ae..0d7bc046074 100644
--- a/chdir-notify.c
+++ b/chdir-notify.c
@@ -1,7 +1,8 @@
-#include "cache.h"
+#include "git-compat-util.h"
 #include "abspath.h"
 #include "chdir-notify.h"
 #include "list.h"
+#include "path.h"
 #include "strbuf.h"
 #include "trace.h"
 
diff --git a/quote.c b/quote.c
index 7ccb5a06cd1..43c739671ed 100644
--- a/quote.c
+++ b/quote.c
@@ -1,5 +1,6 @@
-#include "cache.h"
+#include "git-compat-util.h"
 #include "alloc.h"
+#include "path.h"
 #include "quote.h"
 #include "strbuf.h"
 #include "strvec.h"
diff --git a/refs/ref-cache.h b/refs/ref-cache.h
index 850d9d3744e..cf4ad9070b9 100644
--- a/refs/ref-cache.h
+++ b/refs/ref-cache.h
@@ -1,7 +1,7 @@
 #ifndef REFS_REF_CACHE_H
 #define REFS_REF_CACHE_H
 
-#include "cache.h"
+#include "hash.h"
 
 struct ref_dir;
 struct ref_store;
diff --git a/rerere.c b/rerere.c
index 093c0f6f993..7abc94bf444 100644
--- a/rerere.c
+++ b/rerere.c
@@ -1,4 +1,4 @@
-#include "git-compat-util.h"
+#include "cache.h"
 #include "abspath.h"
 #include "alloc.h"
 #include "config.h"
diff --git a/resolve-undo.h b/resolve-undo.h
index 2b3f0f901e6..d1ea9727712 100644
--- a/resolve-undo.h
+++ b/resolve-undo.h
@@ -1,7 +1,12 @@
 #ifndef RESOLVE_UNDO_H
 #define RESOLVE_UNDO_H
 
-#include "cache.h"
+struct cache_entry;
+struct index_state;
+struct pathspec;
+struct string_list;
+
+#include "hash.h"
 
 struct resolve_undo_info {
 	unsigned int mode[3];
diff --git a/revision.c b/revision.c
index 3d86e07abb8..43f88eaf56c 100644
--- a/revision.c
+++ b/revision.c
@@ -1,4 +1,4 @@
-#include "git-compat-util.h"
+#include "cache.h"
 #include "alloc.h"
 #include "config.h"
 #include "environment.h"
diff --git a/split-index.h b/split-index.h
index 7a435ca2c97..1a153f47ba3 100644
--- a/split-index.h
+++ b/split-index.h
@@ -1,7 +1,7 @@
 #ifndef SPLIT_INDEX_H
 #define SPLIT_INDEX_H
 
-#include "cache.h"
+#include "hash.h"
 
 struct index_state;
 struct strbuf;
-- 
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