a3df180138
This also regularizes the make. The source files themselves don't get the "git-" prefix, because that's just inconvenient. So instead we just make the rule that "git-xxxx" depends on "xxxx.c", and do that for all the core programs (ie the old "git-mktag.c" got renamed to just "mktag.c" to match everything else). And "show-diff" got renamed to "git-diff-files" while at it, since that's what it really should be to match the other git-diff-xxx cases.
82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
#include "cache.h"
|
|
#include "commit.h"
|
|
|
|
/*
|
|
* Show one commit
|
|
*/
|
|
void show_commit(struct commit *commit)
|
|
{
|
|
char cmdline[400];
|
|
char hex[100];
|
|
|
|
strcpy(hex, sha1_to_hex(commit->object.sha1));
|
|
printf("Id: %s\n", hex);
|
|
fflush(NULL);
|
|
sprintf(cmdline, "cat-file commit %s", hex);
|
|
system(cmdline);
|
|
if (commit->parents) {
|
|
char *against = sha1_to_hex(commit->parents->item->object.sha1);
|
|
printf("\n\n======== diff against %s ========\n", against);
|
|
fflush(NULL);
|
|
sprintf(cmdline, "diff-tree -p %s %s", against, hex);
|
|
system(cmdline);
|
|
}
|
|
printf("======== end ========\n\n");
|
|
}
|
|
|
|
/*
|
|
* Show all unseen commits, depth-first
|
|
*/
|
|
void show_unseen(struct commit *top)
|
|
{
|
|
struct commit_list *parents;
|
|
|
|
if (top->object.flags & 2)
|
|
return;
|
|
top->object.flags |= 2;
|
|
parents = top->parents;
|
|
while (parents) {
|
|
show_unseen(parents->item);
|
|
parents = parents->next;
|
|
}
|
|
show_commit(top);
|
|
}
|
|
|
|
void export(struct commit *top, struct commit *base)
|
|
{
|
|
mark_reachable(&top->object, 1);
|
|
if (base)
|
|
mark_reachable(&base->object, 2);
|
|
show_unseen(top);
|
|
}
|
|
|
|
struct commit *get_commit(unsigned char *sha1)
|
|
{
|
|
struct commit *commit = lookup_commit(sha1);
|
|
if (!commit->object.parsed) {
|
|
struct commit_list *parents;
|
|
|
|
if (parse_commit(commit) < 0)
|
|
die("unable to parse commit %s", sha1_to_hex(sha1));
|
|
parents = commit->parents;
|
|
while (parents) {
|
|
get_commit(parents->item->object.sha1);
|
|
parents = parents->next;
|
|
}
|
|
}
|
|
return commit;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
unsigned char base_sha1[20];
|
|
unsigned char top_sha1[20];
|
|
|
|
if (argc < 2 || argc > 4 ||
|
|
get_sha1_hex(argv[1], top_sha1) ||
|
|
(argc == 3 && get_sha1_hex(argv[2], base_sha1)))
|
|
usage("git-export top [base]");
|
|
export(get_commit(top_sha1), argc==3 ? get_commit(base_sha1) : NULL);
|
|
return 0;
|
|
}
|