Re: [ANNOUNCE] git-pasky-0.3

Russell King
2005-04-13T09:35:53Z

On Mon, Apr 11, 2005 at 03:57:58PM +0200, Petr Baudis wrote:
> here goes git-pasky-0.3, my set of patches and scripts upon
> Linus' git, aimed at human usability and to an extent a SCM-like usage.

I tried this today, applied my patch for BE<->LE conversions and
glibc-2.2 compatibility (attached, still requires cleaning though),
and then tried git pull. Umm, whoops.

Here's just a small sample of what happened:

diff: /9a30ec42a6c4860d3f11ad90c1052823a020de32/show-files.c: No such file or directory
diff: /85bf824bd24f034896f5820a2628148a246f8fd1/show-files.c: No such file or directory
mkdir: cannot create directory `/9a30ec42a6c4860d3f11ad90c1052823a020de32': Permission denied
mkdir: cannot create directory `/85bf824bd24f034896f5820a2628148a246f8fd1': Permission denied
./gitdiff-do: /9a30ec42a6c4860d3f11ad90c1052823a020de32/update-cache.c: No such
file or directory
./gitdiff-do: /85bf824bd24f034896f5820a2628148a246f8fd1/update-cache.c: No such
file or directory
diff: /9a30ec42a6c4860d3f11ad90c1052823a020de32/update-cache.c: No such file or
directory
diff: /85bf824bd24f034896f5820a2628148a246f8fd1/update-cache.c: No such file or
directory
patch: **** Only garbage was found in the patch input.

--- - Wed Apr 13 09:49:43 2005
+++ cache.h Fri Apr 8 11:15:08 2005
@@ -14,6 +14,12 @@
#include <openssl/sha.h>
#include <zlib.h>

+#include <netinet/in.h>
+#define cpu_to_beuint(x) (htonl(x))
+#define beuint_to_cpu(x) (ntohl(x))
+#define cpu_to_beushort(x) (htons(x))
+#define beushort_to_cpu(x) (ntohs(x))
+
/*
* Basic data structures for the directory cache
*
@@ -67,7 +73,7 @@
#define DEFAULT_DB_ENVIRONMENT ".git/objects"

#define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
-#define ce_size(ce) cache_entry_size((ce)->namelen)
+#define ce_size(ce) cache_entry_size(beushort_to_cpu((ce)->namelen))

#define alloc_nr(x) (((x)+16)*3/2)

--- - Wed Apr 13 09:49:43 2005
+++ read-cache.c Fri Apr 8 11:05:34 2005
@@ -271,6 +271,7 @@
/* nsec seems unreliable - not all filesystems support it, so
* as long as it is in the inode cache you get right nsec
* but after it gets flushed, you get zero nsec. */
+#if 0
if (ce->mtime.sec != (unsigned int)st->st_mtim.tv_sec
#ifdef NSEC
|| ce->mtime.nsec != (unsigned int)st->st_mtim.tv_nsec
@@ -283,15 +284,21 @@
#endif
)
changed |= CTIME_CHANGED;
- if (ce->st_uid != (unsigned int)st->st_uid ||
- ce->st_gid != (unsigned int)st->st_gid)
+#else
+ if (beuint_to_cpu(ce->mtime.sec) != (unsigned int)st->st_mtime)
+ changed |= MTIME_CHANGED;
+ if (beuint_to_cpu(ce->ctime.sec) != (unsigned int)st->st_ctime)
+ changed |= CTIME_CHANGED;
+#endif
+ if (beuint_to_cpu(ce->st_uid) != (unsigned int)st->st_uid ||
+ beuint_to_cpu(ce->st_gid) != (unsigned int)st->st_gid)
changed |= OWNER_CHANGED;
- if (ce->st_mode != (unsigned int)st->st_mode)
+ if (beuint_to_cpu(ce->st_mode) != (unsigned int)st->st_mode)
changed |= MODE_CHANGED;
- if (ce->st_dev != (unsigned int)st->st_dev ||
- ce->st_ino != (unsigned int)st->st_ino)
+ if (beuint_to_cpu(ce->st_dev) != (unsigned int)st->st_dev ||
+ beuint_to_cpu(ce->st_ino) != (unsigned int)st->st_ino)
changed |= INODE_CHANGED;
- if (ce->st_size != (unsigned int)st->st_size)
+ if (beuint_to_cpu(ce->st_size) != (unsigned int)st->st_size)
changed |= DATA_CHANGED;
return changed;
}
@@ -378,9 +378,9 @@
SHA_CTX c;
unsigned char sha1[20];

- if (hdr->signature != CACHE_SIGNATURE)
+ if (hdr->signature != cpu_to_beuint(CACHE_SIGNATURE))
return error("bad signature");
- if (hdr->version != 1)
+ if (hdr->version != cpu_to_beuint(1))
return error("bad version");
SHA1_Init(&c);
SHA1_Update(&c, hdr, offsetof(struct cache_header, sha1));
@@ -428,12 +428,12 @@
if (verify_hdr(hdr, size) < 0)
goto unmap;

- active_nr = hdr->entries;
+ active_nr = beuint_to_cpu(hdr->entries);
active_alloc = alloc_nr(active_nr);
active_cache = calloc(active_alloc, sizeof(struct cache_entry *));

offset = sizeof(*hdr);
- for (i = 0; i < hdr->entries; i++) {
+ for (i = 0; i < beuint_to_cpu(hdr->entries); i++) {
struct cache_entry *ce = map + offset;
offset = offset + ce_size(ce);
active_cache[i] = ce;
@@ -452,9 +452,9 @@
struct cache_header hdr;
int i;

- hdr.signature = CACHE_SIGNATURE;
- hdr.version = 1;
- hdr.entries = entries;
+ hdr.signature = cpu_to_beuint(CACHE_SIGNATURE);
+ hdr.version = cpu_to_beuint(1);
+ hdr.entries = cpu_to_beuint(entries);

SHA1_Init(&c);
SHA1_Update(&c, &hdr, offsetof(struct cache_header, sha1));
--- - Wed Apr 13 09:49:43 2005
+++ show-diff.c Wed Apr 13 09:49:43 2005
@@ -51,7 +51,7 @@
printf("%s: ok\n", ce->name);
continue;
}
- printf("%.*s: ", ce->namelen, ce->name);
+ printf("%.*s: ", beushort_to_cpu(ce->namelen), ce->name);
for (n = 0; n < 20; n++)
printf("%02x", ce->sha1[n]);
printf(" %02x\n", changed);
--- - Wed Apr 13 09:49:43 2005
+++ update-cache.c Fri Apr 8 11:06:17 2005
@@ -108,11 +108,11 @@
memcpy(ce->name, path, namelen);
ce->ctime.sec = st.st_ctime;
#ifdef NSEC
- ce->ctime.nsec = st.st_ctim.tv_nsec;
+ ce->ctime.nsec = 0; //st.st_ctim.tv_nsec;
#endif
ce->mtime.sec = st.st_mtime;
#ifdef NSEC
- ce->mtime.nsec = st.st_mtim.tv_nsec;
+ ce->mtime.nsec = 0; //st.st_mtim.tv_nsec;
#endif
ce->st_dev = st.st_dev;
ce->st_ino = st.st_ino;

--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core