[PATCH] move MAXDEPTH definition to the cache.h

[PATCH] move MAXDEPTH definition to the cache.h

[Alexander Kuleshov]

There are a couple of source code files as abspath.c, lockfile.c and etc...,
which defines MAXDEPTH macro. All of these definitions are the same, so let's
move MAXDEPTH definition to the <cache.h> instead of directly declaration of
this macro in all these files.

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
---
 abspath.c   | 3 ---
 cache.h     | 1 +
 http-push.c | 3 ---
 lockfile.c  | 4 ----
 refs.c      | 2 --
 5 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/abspath.c b/abspath.c
index 5edb4e7..9209522 100644
--- a/abspath.c
+++ b/abspath.c
@@ -11,9 +11,6 @@ int is_directory(const char *path)
 	return (!stat(path, &st) && S_ISDIR(st.st_mode));
 }
 
-/* We allow "recursive" symbolic links. Only within reason, though. */
-#define MAXDEPTH 5
-
 /*
  * Return the real path (i.e., absolute path, with symlinks resolved
  * and extra slashes removed) equivalent to the specified path.  (If
diff --git a/cache.h b/cache.h
index 64aa287..cac85b7 100644
--- a/cache.h
+++ b/cache.h
@@ -1010,6 +1010,7 @@ extern int read_ref(const char *refname, unsigned char *sha1);
  * Caps and underscores refers to the special refs, such as HEAD,
  * FETCH_HEAD and friends, that all live outside of the refs/ directory.
  */
+#define MAXDEPTH 5
 #define RESOLVE_REF_READING 0x01
 #define RESOLVE_REF_NO_RECURSE 0x02
 #define RESOLVE_REF_ALLOW_BAD_NAME 0x04
diff --git a/http-push.c b/http-push.c
index 0beb7ab..bb1f82e 100644
--- a/http-push.c
+++ b/http-push.c
@@ -70,9 +70,6 @@ enum XML_Status {
 #define FETCHING (1u<<18)
 #define PUSHING  (1u<<19)
 
-/* We allow "recursive" symbolic refs. Only within reason, though */
-#define MAXDEPTH 5
-
 static int pushing;
 static int aborted;
 static signed char remote_dir_exists[256];
diff --git a/lockfile.c b/lockfile.c
index 9889277..88d0102 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -59,10 +59,6 @@ static void trim_last_path_component(struct strbuf *path)
 	strbuf_setlen(path, i);
 }
 
-
-/* We allow "recursive" symbolic links. Only within reason, though */
-#define MAXDEPTH 5
-
 /*
  * path contains a path that might be a symlink.
  *
diff --git a/refs.c b/refs.c
index 872cb26..c37879f 100644
--- a/refs.c
+++ b/refs.c
@@ -1335,8 +1335,6 @@ static struct ref_dir *get_loose_refs(struct ref_cache *refs)
 	return get_ref_dir(refs->loose);
 }
 
-/* We allow "recursive" symbolic refs. Only within reason, though */
-#define MAXDEPTH 5
 #define MAXREFLEN (1024)
 
 /*
-- 
2.3.0.rc0.286.ga3dc223.dirty

Re: [PATCH] move MAXDEPTH definition to the cache.h

[Torsten Bögershausen]

> --- a/cache.h
> +++ b/cache.h
> @@ -1010,6 +1010,7 @@ extern int read_ref(const char *refname, unsigned char *sha1);
>   * Caps and underscores refers to the special refs, such as HEAD,
>   * FETCH_HEAD and friends, that all live outside of the refs/ directory.
>   */

What happened to the comment line ?
Should it go away or better stay ?

When we move the definition to a common file,
it is not 100% clear what MAXDEPTH is about,
and the comment is even more important, I think:

> +/* We allow "recursive" symbolic links. Only within reason, though. */
> +#define MAXDEPTH 5

On the other hand, if we find a better name for that definition,
we may skip the comment.

A first suggestion may be
#define MAXDEPTH_FOR_SYMLINKS 5
but other variants are possible.

Re: [PATCH] move MAXDEPTH definition to the cache.h

[Junio C Hamano]

Alexander Kuleshov <kuleshovmail@gmail.com> writes:

> There are a couple of source code files as abspath.c, lockfile.c and etc...,
> which defines MAXDEPTH macro. All of these definitions are the same,...

Are they the same by design (because there are logical linkage
between these values and there is a reason why they must share the
same value), or are they happen to be the same (i.e. one can be
raised for some reason without affecting others)?

I am guessing that it is the latter, and if that is the case, then
they should not be made into a single symbol.