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72 lines
1.7 KiB
72 lines
1.7 KiB
/* |
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* GIT - The information manager from hell |
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* |
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* Copyright (C) Linus Torvalds, 2005 |
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*/ |
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#include "cache.h" |
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#include "tree.h" |
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#include "cache-tree.h" |
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static int missing_ok = 0; |
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static char *prefix = NULL; |
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static const char write_tree_usage[] = |
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"git-write-tree [--missing-ok] [--prefix=<prefix>/]"; |
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static struct cache_file cache_file; |
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int main(int argc, char **argv) |
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{ |
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int entries, was_valid, newfd; |
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setup_git_directory(); |
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newfd = hold_index_file_for_update(&cache_file, get_index_file()); |
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entries = read_cache(); |
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while (1 < argc) { |
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char *arg = argv[1]; |
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if (!strcmp(arg, "--missing-ok")) |
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missing_ok = 1; |
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else if (!strncmp(arg, "--prefix=", 9)) |
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prefix = arg + 9; |
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else |
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die(write_tree_usage); |
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argc--; argv++; |
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} |
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if (argc > 2) |
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die("too many options"); |
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if (entries < 0) |
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die("git-write-tree: error reading cache"); |
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if (!active_cache_tree) |
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active_cache_tree = cache_tree(); |
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was_valid = cache_tree_fully_valid(active_cache_tree); |
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if (!was_valid) { |
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if (cache_tree_update(active_cache_tree, |
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active_cache, active_nr, |
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missing_ok, 0) < 0) |
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die("git-write-tree: error building trees"); |
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if (0 <= newfd) { |
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if (!write_cache(newfd, active_cache, active_nr)) |
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commit_index_file(&cache_file); |
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} |
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/* Not being able to write is fine -- we are only interested |
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* in updating the cache-tree part, and if the next caller |
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* ends up using the old index with unupdated cache-tree part |
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* it misses the work we did here, but that is just a |
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* performance penalty and not a big deal. |
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*/ |
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} |
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if (prefix) { |
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struct cache_tree *subtree = |
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cache_tree_find(active_cache_tree, prefix); |
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printf("%s\n", sha1_to_hex(subtree->sha1)); |
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} |
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else |
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printf("%s\n", sha1_to_hex(active_cache_tree->sha1)); |
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return 0; |
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}
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