2005-04-07 22:16:10 +00:00
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/*
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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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2005-04-07 22:13:13 +00:00
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#include "cache.h"
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2005-09-27 01:13:08 +00:00
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#include "strbuf.h"
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2005-10-16 07:39:07 +00:00
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#include "quote.h"
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2005-04-07 22:13:13 +00:00
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2005-04-10 18:32:54 +00:00
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/*
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* Default to not allowing changes to the list of files. The
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* tool doesn't actually care, but this makes it harder to add
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* files to the revision control by mistake by doing something
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2005-09-08 00:26:23 +00:00
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* like "git-update-index *" and suddenly having all the object
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2005-04-10 18:32:54 +00:00
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* files be revision controlled.
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*/
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2005-10-15 04:56:46 +00:00
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static int allow_add;
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static int allow_remove;
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static int allow_replace;
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static int allow_unmerged; /* --refresh needing merge is not error */
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static int not_new; /* --refresh not having working tree files is not error */
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static int quiet; /* --refresh needing update is not error */
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static int info_only;
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2005-05-31 16:52:43 +00:00
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static int force_remove;
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2005-10-15 04:56:46 +00:00
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static int verbose;
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2005-04-24 22:14:16 +00:00
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/* Three functions to allow overloaded pointer return; see linux/err.h */
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static inline void *ERR_PTR(long error)
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{
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return (void *) error;
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}
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static inline long PTR_ERR(const void *ptr)
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{
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return (long) ptr;
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}
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static inline long IS_ERR(const void *ptr)
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{
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return (unsigned long)ptr > (unsigned long)-1000L;
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}
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2005-04-10 18:32:54 +00:00
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2005-10-15 04:56:46 +00:00
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static void report(const char *fmt, ...)
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{
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va_list vp;
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if (!verbose)
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return;
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va_start(vp, fmt);
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vprintf(fmt, vp);
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putchar('\n');
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va_end(vp);
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}
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2005-09-21 07:00:47 +00:00
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static int add_file_to_cache(const char *path)
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2005-04-07 22:13:13 +00:00
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{
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2005-05-08 07:05:18 +00:00
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int size, namelen, option, status;
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2005-04-07 22:13:13 +00:00
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struct cache_entry *ce;
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struct stat st;
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2005-05-08 07:05:18 +00:00
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status = lstat(path, &st);
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if (status < 0 || S_ISDIR(st.st_mode)) {
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/* When we used to have "path" and now we want to add
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* "path/file", we need a way to remove "path" before
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* being able to add "path/file". However,
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2005-09-08 00:26:23 +00:00
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* "git-update-index --remove path" would not work.
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2005-05-08 07:05:18 +00:00
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* --force-remove can be used but this is more user
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* friendly, especially since we can do the opposite
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* case just fine without --force-remove.
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*/
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if (status == 0 || (errno == ENOENT || errno == ENOTDIR)) {
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2005-09-18 19:09:22 +00:00
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if (allow_remove) {
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if (remove_file_from_cache(path))
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return error("%s: cannot remove from the index",
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path);
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else
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return 0;
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} else if (status < 0) {
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return error("%s: does not exist and --remove not passed",
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path);
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}
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2005-04-10 18:32:54 +00:00
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}
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2005-09-01 14:13:50 +00:00
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if (0 == status)
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2005-09-18 19:09:22 +00:00
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return error("%s: is a directory - add files inside instead",
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path);
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2005-09-01 14:13:50 +00:00
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else
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return error("lstat(\"%s\"): %s", path,
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strerror(errno));
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2005-04-07 22:13:13 +00:00
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}
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2005-10-12 01:45:33 +00:00
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2005-04-07 22:13:13 +00:00
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namelen = strlen(path);
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size = cache_entry_size(namelen);
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2005-04-26 19:00:58 +00:00
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ce = xmalloc(size);
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2005-04-07 22:13:13 +00:00
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memset(ce, 0, size);
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memcpy(ce->name, path, namelen);
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2005-04-11 16:39:21 +00:00
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fill_stat_cache_info(ce, &st);
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2005-10-12 01:45:33 +00:00
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2005-04-17 05:26:31 +00:00
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ce->ce_mode = create_ce_mode(st.st_mode);
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2005-10-12 01:45:33 +00:00
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if (!trust_executable_bit) {
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/* If there is an existing entry, pick the mode bits
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* from it.
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*/
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int pos = cache_name_pos(path, namelen);
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if (0 <= pos)
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ce->ce_mode = active_cache[pos]->ce_mode;
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}
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2005-04-16 04:45:38 +00:00
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ce->ce_flags = htons(namelen);
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2005-10-07 10:42:00 +00:00
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if (index_path(ce->sha1, path, &st, !info_only))
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return -1;
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2005-05-08 04:55:21 +00:00
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option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
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option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
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2005-09-18 19:09:22 +00:00
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if (add_cache_entry(ce, option))
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return error("%s: cannot add to the index - missing --add option?",
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path);
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return 0;
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2005-04-10 18:32:54 +00:00
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}
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2005-04-11 16:39:21 +00:00
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/*
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* "refresh" does not calculate a new sha1 file or bring the
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* cache up-to-date for mode/content changes. But what it
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* _does_ do is to "re-match" the stat information of a file
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* with the cache, so that you can refresh the cache for a
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* file that hasn't been changed but where the stat entry is
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* out of date.
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*
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2005-05-19 11:17:16 +00:00
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* For example, you'd want to do this after doing a "git-read-tree",
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2005-04-11 16:39:21 +00:00
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* to link up the stat cache details with the proper files.
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*/
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static struct cache_entry *refresh_entry(struct cache_entry *ce)
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{
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struct stat st;
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struct cache_entry *updated;
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int changed, size;
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2005-05-05 12:38:25 +00:00
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if (lstat(ce->name, &st) < 0)
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2005-04-24 22:14:16 +00:00
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return ERR_PTR(-errno);
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2005-04-11 16:39:21 +00:00
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2005-05-15 02:04:25 +00:00
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changed = ce_match_stat(ce, &st);
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2005-04-11 16:39:21 +00:00
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if (!changed)
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2005-10-01 20:24:27 +00:00
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return NULL;
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2005-04-11 16:39:21 +00:00
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2005-09-19 22:11:15 +00:00
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if (ce_modified(ce, &st))
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2005-04-24 22:14:16 +00:00
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return ERR_PTR(-EINVAL);
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2005-04-11 16:39:21 +00:00
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size = ce_size(ce);
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2005-04-26 19:00:58 +00:00
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updated = xmalloc(size);
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2005-04-11 16:39:21 +00:00
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memcpy(updated, ce, size);
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fill_stat_cache_info(updated, &st);
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return updated;
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2005-04-10 18:32:54 +00:00
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}
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2005-05-02 04:07:40 +00:00
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static int refresh_cache(void)
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2005-04-10 18:32:54 +00:00
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{
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int i;
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2005-05-02 04:07:40 +00:00
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int has_errors = 0;
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2005-04-10 18:32:54 +00:00
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2005-04-11 16:39:21 +00:00
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for (i = 0; i < active_nr; i++) {
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2005-04-18 17:42:48 +00:00
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struct cache_entry *ce, *new;
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ce = active_cache[i];
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if (ce_stage(ce)) {
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while ((i < active_nr) &&
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! strcmp(active_cache[i]->name, ce->name))
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i++;
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i--;
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2005-10-01 20:24:27 +00:00
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if (allow_unmerged)
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continue;
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printf("%s: needs merge\n", ce->name);
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has_errors = 1;
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2005-04-18 17:42:48 +00:00
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continue;
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}
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2005-04-11 16:39:21 +00:00
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2005-04-18 17:42:48 +00:00
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new = refresh_entry(ce);
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2005-10-01 20:24:27 +00:00
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if (!new)
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continue;
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2005-04-24 22:14:16 +00:00
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if (IS_ERR(new)) {
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2005-06-21 04:18:54 +00:00
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if (not_new && PTR_ERR(new) == -ENOENT)
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continue;
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if (quiet)
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continue;
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printf("%s: needs update\n", ce->name);
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has_errors = 1;
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2005-04-11 16:39:21 +00:00
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continue;
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}
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2005-05-06 23:48:43 +00:00
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active_cache_changed = 1;
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2005-04-17 21:34:51 +00:00
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/* You can NOT just free active_cache[i] here, since it
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* might not be necessarily malloc()ed but can also come
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* from mmap(). */
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2005-04-11 16:39:21 +00:00
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active_cache[i] = new;
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}
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2005-05-02 04:07:40 +00:00
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return has_errors;
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2005-04-07 22:13:13 +00:00
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}
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/*
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* We fundamentally don't like some paths: we don't want
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2005-05-24 21:40:28 +00:00
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* dot or dot-dot anywhere, and for obvious reasons don't
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* want to recurse into ".git" either.
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2005-04-07 22:13:13 +00:00
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*
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* Also, we don't want double slashes or slashes at the
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2005-04-12 18:36:26 +00:00
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* end that can make pathnames ambiguous.
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2005-04-07 22:13:13 +00:00
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*/
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2005-05-24 21:40:28 +00:00
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static int verify_dotfile(const char *rest)
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{
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/*
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* The first character was '.', but that
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* has already been discarded, we now test
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* the rest.
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*/
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switch (*rest) {
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/* "." is not allowed */
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case '\0': case '/':
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return 0;
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/*
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* ".git" followed by NUL or slash is bad. This
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* shares the path end test with the ".." case.
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*/
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case 'g':
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if (rest[1] != 'i')
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break;
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if (rest[2] != 't')
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break;
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rest += 2;
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/* fallthrough */
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case '.':
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if (rest[1] == '\0' || rest[1] == '/')
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return 0;
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}
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return 1;
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}
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2005-09-21 07:00:47 +00:00
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static int verify_path(const char *path)
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2005-04-07 22:13:13 +00:00
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{
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char c;
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goto inside;
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for (;;) {
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if (!c)
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return 1;
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if (c == '/') {
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inside:
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c = *path++;
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2005-05-24 21:40:28 +00:00
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switch (c) {
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default:
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2005-04-07 22:13:13 +00:00
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continue;
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2005-05-24 21:40:28 +00:00
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case '/': case '\0':
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break;
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case '.':
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if (verify_dotfile(path))
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continue;
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}
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2005-04-07 22:13:13 +00:00
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return 0;
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}
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c = *path++;
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}
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}
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2005-09-21 07:00:47 +00:00
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static int add_cacheinfo(const char *arg1, const char *arg2, const char *arg3)
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2005-04-15 18:08:33 +00:00
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{
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2005-05-08 04:55:21 +00:00
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int size, len, option;
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2005-04-15 18:08:33 +00:00
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unsigned int mode;
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unsigned char sha1[20];
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struct cache_entry *ce;
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if (sscanf(arg1, "%o", &mode) != 1)
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return -1;
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if (get_sha1_hex(arg2, sha1))
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return -1;
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if (!verify_path(arg3))
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return -1;
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len = strlen(arg3);
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size = cache_entry_size(len);
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2005-04-26 19:00:58 +00:00
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ce = xmalloc(size);
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2005-04-15 18:08:33 +00:00
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memset(ce, 0, size);
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memcpy(ce->sha1, sha1, 20);
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memcpy(ce->name, arg3, len);
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2005-04-16 04:45:38 +00:00
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ce->ce_flags = htons(len);
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2005-04-17 05:26:31 +00:00
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ce->ce_mode = create_ce_mode(mode);
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2005-05-08 04:55:21 +00:00
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option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
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option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
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2005-10-15 04:56:46 +00:00
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if (add_cache_entry(ce, option))
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return error("%s: cannot add to the index - missing --add option?",
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arg3);
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report("add '%s'", arg3);
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return 0;
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2005-04-15 18:08:33 +00:00
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}
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2005-10-12 01:45:33 +00:00
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static int chmod_path(int flip, const char *path)
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{
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int pos;
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struct cache_entry *ce;
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unsigned int mode;
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2005-04-26 18:55:42 +00:00
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2005-10-12 01:45:33 +00:00
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pos = cache_name_pos(path, strlen(path));
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if (pos < 0)
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return -1;
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ce = active_cache[pos];
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mode = ntohl(ce->ce_mode);
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if (!S_ISREG(mode))
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return -1;
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switch (flip) {
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case '+':
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ce->ce_mode |= htonl(0111); break;
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case '-':
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ce->ce_mode &= htonl(~0111); break;
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default:
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return -1;
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}
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active_cache_changed = 1;
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return 0;
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}
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static struct cache_file cache_file;
|
2005-09-27 01:13:08 +00:00
|
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static void update_one(const char *path, const char *prefix, int prefix_length)
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|
{
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const char *p = prefix_path(prefix, prefix_length, path);
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if (!verify_path(p)) {
|
|
|
|
fprintf(stderr, "Ignoring path %s\n", path);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (force_remove) {
|
|
|
|
if (remove_file_from_cache(p))
|
|
|
|
die("git-update-index: unable to remove %s", path);
|
2005-10-15 04:56:46 +00:00
|
|
|
report("remove '%s'", path);
|
2005-09-27 01:13:08 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (add_file_to_cache(p))
|
|
|
|
die("Unable to process file %s", path);
|
2005-10-15 04:56:46 +00:00
|
|
|
report("add '%s'", path);
|
2005-09-27 01:13:08 +00:00
|
|
|
}
|
|
|
|
|
2005-10-07 10:42:00 +00:00
|
|
|
static void read_index_info(int line_termination)
|
|
|
|
{
|
|
|
|
struct strbuf buf;
|
|
|
|
strbuf_init(&buf);
|
|
|
|
while (1) {
|
|
|
|
char *ptr;
|
2005-10-16 07:39:07 +00:00
|
|
|
char *path_name;
|
2005-10-07 10:42:00 +00:00
|
|
|
unsigned char sha1[20];
|
|
|
|
unsigned int mode;
|
|
|
|
|
|
|
|
read_line(&buf, stdin, line_termination);
|
|
|
|
if (buf.eof)
|
|
|
|
break;
|
|
|
|
|
|
|
|
mode = strtoul(buf.buf, &ptr, 8);
|
|
|
|
if (ptr == buf.buf || *ptr != ' ' ||
|
|
|
|
get_sha1_hex(ptr + 1, sha1) ||
|
|
|
|
ptr[41] != '\t')
|
|
|
|
goto bad_line;
|
|
|
|
|
|
|
|
ptr += 42;
|
2005-10-16 07:39:07 +00:00
|
|
|
|
|
|
|
if (line_termination && ptr[0] == '"')
|
|
|
|
path_name = unquote_c_style(ptr, NULL);
|
|
|
|
else
|
|
|
|
path_name = ptr;
|
|
|
|
|
|
|
|
if (!verify_path(path_name)) {
|
|
|
|
fprintf(stderr, "Ignoring path %s\n", path_name);
|
|
|
|
if (path_name != ptr)
|
|
|
|
free(path_name);
|
2005-10-07 10:42:00 +00:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!mode) {
|
|
|
|
/* mode == 0 means there is no such path -- remove */
|
2005-10-16 07:39:07 +00:00
|
|
|
if (remove_file_from_cache(path_name))
|
2005-10-07 10:42:00 +00:00
|
|
|
die("git-update-index: unable to remove %s",
|
|
|
|
ptr);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
/* mode ' ' sha1 '\t' name
|
|
|
|
* ptr[-1] points at tab,
|
|
|
|
* ptr[-41] is at the beginning of sha1
|
|
|
|
*/
|
|
|
|
ptr[-42] = ptr[-1] = 0;
|
2005-10-16 07:39:07 +00:00
|
|
|
if (add_cacheinfo(buf.buf, ptr-41, path_name))
|
2005-10-07 10:42:00 +00:00
|
|
|
die("git-update-index: unable to update %s",
|
2005-10-16 07:39:07 +00:00
|
|
|
path_name);
|
2005-10-07 10:42:00 +00:00
|
|
|
}
|
2005-10-16 07:39:07 +00:00
|
|
|
if (path_name != ptr)
|
|
|
|
free(path_name);
|
2005-10-07 10:42:00 +00:00
|
|
|
continue;
|
|
|
|
|
|
|
|
bad_line:
|
|
|
|
die("malformed index info %s", buf.buf);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-09-21 07:00:47 +00:00
|
|
|
int main(int argc, const char **argv)
|
2005-04-07 22:13:13 +00:00
|
|
|
{
|
2005-09-27 01:13:08 +00:00
|
|
|
int i, newfd, entries, has_errors = 0, line_termination = '\n';
|
2005-04-10 18:32:54 +00:00
|
|
|
int allow_options = 1;
|
2005-09-27 01:13:08 +00:00
|
|
|
int read_from_stdin = 0;
|
2005-08-17 20:32:22 +00:00
|
|
|
const char *prefix = setup_git_directory();
|
2005-09-27 01:13:08 +00:00
|
|
|
int prefix_length = prefix ? strlen(prefix) : 0;
|
2005-04-21 17:55:18 +00:00
|
|
|
|
2005-10-12 01:45:33 +00:00
|
|
|
git_config(git_default_config);
|
|
|
|
|
2005-05-15 21:23:12 +00:00
|
|
|
newfd = hold_index_file_for_update(&cache_file, get_index_file());
|
2005-04-11 22:39:26 +00:00
|
|
|
if (newfd < 0)
|
2005-04-13 09:28:48 +00:00
|
|
|
die("unable to create new cachefile");
|
2005-04-11 22:39:26 +00:00
|
|
|
|
2005-04-07 22:13:13 +00:00
|
|
|
entries = read_cache();
|
2005-04-11 22:39:26 +00:00
|
|
|
if (entries < 0)
|
2005-04-13 09:28:48 +00:00
|
|
|
die("cache corrupted");
|
2005-04-07 22:13:13 +00:00
|
|
|
|
|
|
|
for (i = 1 ; i < argc; i++) {
|
2005-09-21 07:00:47 +00:00
|
|
|
const char *path = argv[i];
|
2005-04-10 18:32:54 +00:00
|
|
|
|
|
|
|
if (allow_options && *path == '-') {
|
|
|
|
if (!strcmp(path, "--")) {
|
|
|
|
allow_options = 0;
|
|
|
|
continue;
|
|
|
|
}
|
2005-06-21 04:18:54 +00:00
|
|
|
if (!strcmp(path, "-q")) {
|
|
|
|
quiet = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-04-10 18:32:54 +00:00
|
|
|
if (!strcmp(path, "--add")) {
|
|
|
|
allow_add = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-05-08 04:55:21 +00:00
|
|
|
if (!strcmp(path, "--replace")) {
|
|
|
|
allow_replace = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-04-10 18:32:54 +00:00
|
|
|
if (!strcmp(path, "--remove")) {
|
|
|
|
allow_remove = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-10-01 20:24:27 +00:00
|
|
|
if (!strcmp(path, "--unmerged")) {
|
|
|
|
allow_unmerged = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-04-10 18:32:54 +00:00
|
|
|
if (!strcmp(path, "--refresh")) {
|
2005-05-02 04:07:40 +00:00
|
|
|
has_errors |= refresh_cache();
|
2005-04-10 18:32:54 +00:00
|
|
|
continue;
|
|
|
|
}
|
2005-04-15 18:08:33 +00:00
|
|
|
if (!strcmp(path, "--cacheinfo")) {
|
2005-05-08 22:31:33 +00:00
|
|
|
if (i+3 >= argc)
|
2005-09-08 00:26:23 +00:00
|
|
|
die("git-update-index: --cacheinfo <mode> <sha1> <path>");
|
2005-05-08 22:31:33 +00:00
|
|
|
if (add_cacheinfo(argv[i+1], argv[i+2], argv[i+3]))
|
2005-09-08 00:26:23 +00:00
|
|
|
die("git-update-index: --cacheinfo cannot add %s", argv[i+3]);
|
2005-04-15 18:08:33 +00:00
|
|
|
i += 3;
|
|
|
|
continue;
|
|
|
|
}
|
2005-10-12 01:45:33 +00:00
|
|
|
if (!strcmp(path, "--chmod=-x") ||
|
|
|
|
!strcmp(path, "--chmod=+x")) {
|
|
|
|
if (argc <= i+1)
|
|
|
|
die("git-update-index: %s <path>", path);
|
|
|
|
if (chmod_path(path[8], argv[++i]))
|
|
|
|
die("git-update-index: %s cannot chmod %s", path, argv[i]);
|
|
|
|
continue;
|
|
|
|
}
|
2005-07-08 23:52:12 +00:00
|
|
|
if (!strcmp(path, "--info-only")) {
|
|
|
|
info_only = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-05-02 06:50:51 +00:00
|
|
|
if (!strcmp(path, "--force-remove")) {
|
2005-05-31 16:52:43 +00:00
|
|
|
force_remove = 1;
|
2005-05-02 06:50:51 +00:00
|
|
|
continue;
|
|
|
|
}
|
2005-09-27 01:13:08 +00:00
|
|
|
if (!strcmp(path, "-z")) {
|
|
|
|
line_termination = 0;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
if (!strcmp(path, "--stdin")) {
|
|
|
|
if (i != argc - 1)
|
|
|
|
die("--stdin must be at the end");
|
|
|
|
read_from_stdin = 1;
|
|
|
|
break;
|
|
|
|
}
|
2005-10-07 10:42:00 +00:00
|
|
|
if (!strcmp(path, "--index-info")) {
|
|
|
|
allow_add = allow_replace = allow_remove = 1;
|
|
|
|
read_index_info(line_termination);
|
|
|
|
continue;
|
|
|
|
}
|
2005-04-24 22:14:16 +00:00
|
|
|
if (!strcmp(path, "--ignore-missing")) {
|
|
|
|
not_new = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-10-15 04:56:46 +00:00
|
|
|
if (!strcmp(path, "--verbose")) {
|
|
|
|
verbose = 1;
|
|
|
|
continue;
|
|
|
|
}
|
2005-04-13 09:28:48 +00:00
|
|
|
die("unknown option %s", path);
|
2005-04-10 18:32:54 +00:00
|
|
|
}
|
2005-09-27 01:13:08 +00:00
|
|
|
update_one(path, prefix, prefix_length);
|
|
|
|
}
|
|
|
|
if (read_from_stdin) {
|
|
|
|
struct strbuf buf;
|
|
|
|
strbuf_init(&buf);
|
|
|
|
while (1) {
|
|
|
|
read_line(&buf, stdin, line_termination);
|
|
|
|
if (buf.eof)
|
|
|
|
break;
|
|
|
|
update_one(buf.buf, prefix, prefix_length);
|
2005-05-31 16:52:43 +00:00
|
|
|
}
|
2005-04-07 22:13:13 +00:00
|
|
|
}
|
2005-10-01 20:39:47 +00:00
|
|
|
if (active_cache_changed) {
|
|
|
|
if (write_cache(newfd, active_cache, active_nr) ||
|
|
|
|
commit_index_file(&cache_file))
|
|
|
|
die("Unable to write new cachefile");
|
|
|
|
}
|
2005-04-11 22:39:26 +00:00
|
|
|
|
2005-05-05 22:29:06 +00:00
|
|
|
return has_errors ? 1 : 0;
|
2005-04-07 22:13:13 +00:00
|
|
|
}
|