path: root/builtin/unpack-file.c
diff options
authorLinus Torvalds <>2010-02-22 16:42:18 (GMT)
committerJunio C Hamano <>2010-02-22 22:29:41 (GMT)
commit81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch)
tree7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin/unpack-file.c
parent241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff)
Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'builtin/unpack-file.c')
1 files changed, 38 insertions, 0 deletions
diff --git a/builtin/unpack-file.c b/builtin/unpack-file.c
new file mode 100644
index 0000000..608590a
--- /dev/null
+++ b/builtin/unpack-file.c
@@ -0,0 +1,38 @@
+#include "cache.h"
+#include "blob.h"
+#include "exec_cmd.h"
+static char *create_temp_file(unsigned char *sha1)
+ static char path[50];
+ void *buf;
+ enum object_type type;
+ unsigned long size;
+ int fd;
+ buf = read_sha1_file(sha1, &type, &size);
+ if (!buf || type != OBJ_BLOB)
+ die("unable to read blob object %s", sha1_to_hex(sha1));
+ strcpy(path, ".merge_file_XXXXXX");
+ fd = xmkstemp(path);
+ if (write_in_full(fd, buf, size) != size)
+ die_errno("unable to write temp-file");
+ close(fd);
+ return path;
+int cmd_unpack_file(int argc, const char **argv, const char *prefix)
+ unsigned char sha1[20];
+ if (argc != 2 || !strcmp(argv[1], "-h"))
+ usage("git unpack-file <sha1>");
+ if (get_sha1(argv[1], sha1))
+ die("Not a valid object name %s", argv[1]);
+ git_config(git_default_config, NULL);
+ puts(create_temp_file(sha1));
+ return 0;