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81 lines
1.8 KiB
81 lines
1.8 KiB
#include "cache.h" |
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#include "commit.h" |
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/* |
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* Show one commit |
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*/ |
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static void show_commit(struct commit *commit) |
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{ |
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char cmdline[400]; |
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char hex[100]; |
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strcpy(hex, sha1_to_hex(commit->object.sha1)); |
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printf("Id: %s\n", hex); |
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fflush(NULL); |
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sprintf(cmdline, "git-cat-file commit %s", hex); |
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system(cmdline); |
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if (commit->parents) { |
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char *against = sha1_to_hex(commit->parents->item->object.sha1); |
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printf("\n\n======== diff against %s ========\n", against); |
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fflush(NULL); |
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sprintf(cmdline, "git-diff-tree -p %s %s", against, hex); |
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system(cmdline); |
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} |
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printf("======== end ========\n\n"); |
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} |
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/* |
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* Show all unseen commits, depth-first |
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*/ |
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static void show_unseen(struct commit *top) |
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{ |
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struct commit_list *parents; |
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if (top->object.flags & 2) |
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return; |
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top->object.flags |= 2; |
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parents = top->parents; |
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while (parents) { |
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show_unseen(parents->item); |
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parents = parents->next; |
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} |
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show_commit(top); |
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} |
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static void export(struct commit *top, struct commit *base) |
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{ |
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mark_reachable(&top->object, 1); |
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if (base) |
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mark_reachable(&base->object, 2); |
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show_unseen(top); |
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} |
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static struct commit *get_commit(unsigned char *sha1) |
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{ |
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struct commit *commit = lookup_commit(sha1); |
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if (!commit->object.parsed) { |
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struct commit_list *parents; |
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if (parse_commit(commit) < 0) |
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die("unable to parse commit %s", sha1_to_hex(sha1)); |
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parents = commit->parents; |
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while (parents) { |
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get_commit(parents->item->object.sha1); |
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parents = parents->next; |
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} |
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} |
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return commit; |
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} |
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int main(int argc, char **argv) |
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{ |
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unsigned char base_sha1[20]; |
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unsigned char top_sha1[20]; |
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if (argc < 2 || argc > 4 || |
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get_sha1(argv[1], top_sha1) || |
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(argc == 3 && get_sha1(argv[2], base_sha1))) |
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usage("git-export top [base]"); |
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export(get_commit(top_sha1), argc==3 ? get_commit(base_sha1) : NULL); |
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return 0; |
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}
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