summaryrefslogtreecommitdiff
path: root/write-tree.c
diff options
context:
space:
mode:
Diffstat (limited to 'write-tree.c')
-rw-r--r--write-tree.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/write-tree.c b/write-tree.c
deleted file mode 100644
index addb5de3b6..0000000000
--- a/write-tree.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) Linus Torvalds, 2005
- */
-#include "cache.h"
-
-static int missing_ok = 0;
-
-static int check_valid_sha1(unsigned char *sha1)
-{
- int ret;
-
- /* If we were anal, we'd check that the sha1 of the contents actually matches */
- ret = has_sha1_file(sha1);
- if (ret == 0)
- perror(sha1_file_name(sha1));
- return ret ? 0 : -1;
-}
-
-static int write_tree(struct cache_entry **cachep, int maxentries, const char *base, int baselen, unsigned char *returnsha1)
-{
- unsigned char subdir_sha1[20];
- unsigned long size, offset;
- char *buffer;
- int nr;
-
- /* Guess at some random initial size */
- size = 8192;
- buffer = xmalloc(size);
- offset = 0;
-
- nr = 0;
- while (nr < maxentries) {
- struct cache_entry *ce = cachep[nr];
- const char *pathname = ce->name, *filename, *dirname;
- int pathlen = ce_namelen(ce), entrylen;
- unsigned char *sha1;
- unsigned int mode;
-
- /* Did we hit the end of the directory? Return how many we wrote */
- if (baselen >= pathlen || memcmp(base, pathname, baselen))
- break;
-
- sha1 = ce->sha1;
- mode = ntohl(ce->ce_mode);
-
- /* Do we have _further_ subdirectories? */
- filename = pathname + baselen;
- dirname = strchr(filename, '/');
- if (dirname) {
- int subdir_written;
-
- subdir_written = write_tree(cachep + nr, maxentries - nr, pathname, dirname-pathname+1, subdir_sha1);
- nr += subdir_written;
-
- /* Now we need to write out the directory entry into this tree.. */
- mode = S_IFDIR;
- pathlen = dirname - pathname;
-
- /* ..but the directory entry doesn't count towards the total count */
- nr--;
- sha1 = subdir_sha1;
- }
-
- if (!missing_ok && check_valid_sha1(sha1) < 0)
- exit(1);
-
- entrylen = pathlen - baselen;
- if (offset + entrylen + 100 > size) {
- size = alloc_nr(offset + entrylen + 100);
- buffer = xrealloc(buffer, size);
- }
- offset += sprintf(buffer + offset, "%o %.*s", mode, entrylen, filename);
- buffer[offset++] = 0;
- memcpy(buffer + offset, sha1, 20);
- offset += 20;
- nr++;
- }
-
- write_sha1_file(buffer, offset, "tree", returnsha1);
- free(buffer);
- return nr;
-}
-
-static const char write_tree_usage[] = "git-write-tree [--missing-ok]";
-
-int main(int argc, char **argv)
-{
- int i, funny;
- int entries;
- unsigned char sha1[20];
-
- setup_git_directory();
-
- entries = read_cache();
- if (argc == 2) {
- if (!strcmp(argv[1], "--missing-ok"))
- missing_ok = 1;
- else
- die(write_tree_usage);
- }
-
- if (argc > 2)
- die("too many options");
-
- if (entries < 0)
- die("git-write-tree: error reading cache");
-
- /* Verify that the tree is merged */
- funny = 0;
- for (i = 0; i < entries; i++) {
- struct cache_entry *ce = active_cache[i];
- if (ce_stage(ce)) {
- if (10 < ++funny) {
- fprintf(stderr, "...\n");
- break;
- }
- fprintf(stderr, "%s: unmerged (%s)\n", ce->name, sha1_to_hex(ce->sha1));
- }
- }
- if (funny)
- die("git-write-tree: not able to write tree");
-
- /* Also verify that the cache does not have path and path/file
- * at the same time. At this point we know the cache has only
- * stage 0 entries.
- */
- funny = 0;
- for (i = 0; i < entries - 1; i++) {
- /* path/file always comes after path because of the way
- * the cache is sorted. Also path can appear only once,
- * which means conflicting one would immediately follow.
- */
- const char *this_name = active_cache[i]->name;
- const char *next_name = active_cache[i+1]->name;
- int this_len = strlen(this_name);
- if (this_len < strlen(next_name) &&
- strncmp(this_name, next_name, this_len) == 0 &&
- next_name[this_len] == '/') {
- if (10 < ++funny) {
- fprintf(stderr, "...\n");
- break;
- }
- fprintf(stderr, "You have both %s and %s\n",
- this_name, next_name);
- }
- }
- if (funny)
- die("git-write-tree: not able to write tree");
-
- /* Ok, write it out */
- if (write_tree(active_cache, entries, "", 0, sha1) != entries)
- die("git-write-tree: internal error");
- printf("%s\n", sha1_to_hex(sha1));
- return 0;
-}