diff options
| -rw-r--r-- | Makefile | 6 | ||||
| -rw-r--r-- | unpack-file.c | 34 |
2 files changed, 39 insertions, 1 deletions
@@ -15,7 +15,7 @@ AR=ar PROG= update-cache show-diff init-db write-tree read-tree commit-tree \ cat-file fsck-cache checkout-cache diff-tree rev-tree show-files \ - check-files ls-tree merge-base merge-cache + check-files ls-tree merge-base merge-cache unpack-file all: $(PROG) @@ -78,6 +78,9 @@ merge-base: merge-base.o $(LIB_FILE) object.o commit.o tree.o blob.o merge-cache: merge-cache.o $(LIB_FILE) $(CC) $(CFLAGS) -o merge-cache merge-cache.o $(LIBS) +unpack-file: unpack-file.o $(LIB_FILE) + $(CC) $(CFLAGS) -o unpack-file unpack-file.o $(LIBS) + blob.o: $(LIB_H) cat-file.o: $(LIB_H) check-files.o: $(LIB_H) @@ -100,6 +103,7 @@ show-files.o: $(LIB_H) tree.o: $(LIB_H) update-cache.o: $(LIB_H) usage.o: $(LIB_H) +unpack-file.o: $(LIB_H) write-tree.o: $(LIB_H) clean: diff --git a/unpack-file.c b/unpack-file.c new file mode 100644 index 0000000..6ff3d51 --- /dev/null +++ b/unpack-file.c @@ -0,0 +1,34 @@ +#include "cache.h" + +static char *create_temp_file(unsigned char *sha1) +{ + static char path[50]; + void *buf; + char type[100]; + unsigned long size; + int fd; + + buf = read_sha1_file(sha1, type, &size); + if (!buf || strcmp(type, "blob")) + die("unable to read blob object %s", sha1_to_hex(sha1)); + + strcpy(path, ".merge_file_XXXXXX"); + fd = mkstemp(path); + if (fd < 0) + die("unable to create temp-file"); + if (write(fd, buf, size) != size) + die("unable to write temp-file"); + close(fd); + return path; +} + +int main(int argc, char **argv) +{ + unsigned char sha1[20]; + + if (argc != 2 || get_sha1_hex(argv[1], sha1)) + usage("unpack-file.c <sha1>"); + + puts(create_temp_file(sha1)); + return 0; +} |