Makefile: remove remnant of separate http/https/ftp helpers
[gitweb.git] / unpack-trees.c
index 5b0a8c1728b30ebe06d12cc0a1e8c1a08e6caaef..720f7a161651126872b7357173c10d69d1db7636 100644 (file)
@@ -7,6 +7,7 @@
 #include "unpack-trees.h"
 #include "progress.h"
 #include "refs.h"
+#include "attr.h"
 
 /*
  * Error messages expected by scripts out of plumbing commands such as
@@ -52,36 +53,17 @@ static void add_entry(struct unpack_trees_options *o, struct cache_entry *ce,
        add_index_entry(&o->result, new, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
 }
 
-/* Unlink the last component and attempt to remove leading
- * directories, in case this unlink is the removal of the
- * last entry in the directory -- empty directories are removed.
+/*
+ * Unlink the last component and schedule the leading directories for
+ * removal, such that empty directories get removed.
  */
 static void unlink_entry(struct cache_entry *ce)
 {
-       char *cp, *prev;
-       char *name = ce->name;
-
-       if (has_symlink_leading_path(ce_namelen(ce), ce->name))
+       if (has_symlink_or_noent_leading_path(ce->name, ce_namelen(ce)))
                return;
-       if (unlink(name))
+       if (unlink_or_warn(ce->name))
                return;
-       prev = NULL;
-       while (1) {
-               int status;
-               cp = strrchr(name, '/');
-               if (prev)
-                       *prev = '/';
-               if (!cp)
-                       break;
-
-               *cp = 0;
-               status = rmdir(name);
-               if (status) {
-                       *cp = '/';
-                       break;
-               }
-               prev = cp;
-       }
+       schedule_dir_for_removal(ce->name, ce_namelen(ce));
 }
 
 static struct checkout state;
@@ -105,6 +87,8 @@ static int check_updates(struct unpack_trees_options *o)
                cnt = 0;
        }
 
+       if (o->update)
+               git_attr_set_direction(GIT_ATTR_CHECKOUT, &o->result);
        for (i = 0; i < index->cache_nr; i++) {
                struct cache_entry *ce = index->cache[i];
 
@@ -112,11 +96,10 @@ static int check_updates(struct unpack_trees_options *o)
                        display_progress(progress, ++cnt);
                        if (o->update)
                                unlink_entry(ce);
-                       remove_index_entry_at(&o->result, i);
-                       i--;
-                       continue;
                }
        }
+       remove_marked_cache_entries(&o->result);
+       remove_scheduled_dirs();
 
        for (i = 0; i < index->cache_nr; i++) {
                struct cache_entry *ce = index->cache[i];
@@ -130,6 +113,8 @@ static int check_updates(struct unpack_trees_options *o)
                }
        }
        stop_progress(&progress);
+       if (o->update)
+               git_attr_set_direction(GIT_ATTR_CHECKIN, NULL);
        return errs != 0;
 }
 
@@ -143,7 +128,7 @@ static inline int call_unpack_fn(struct cache_entry **src, struct unpack_trees_o
 
 static int unpack_index_entry(struct cache_entry *ce, struct unpack_trees_options *o)
 {
-       struct cache_entry *src[5] = { ce, };
+       struct cache_entry *src[5] = { ce, NULL, };
 
        o->pos++;
        if (ce_stage(ce)) {
@@ -155,7 +140,7 @@ static int unpack_index_entry(struct cache_entry *ce, struct unpack_trees_option
        return call_unpack_fn(src, o);
 }
 
-int traverse_trees_recursive(int n, unsigned long dirmask, unsigned long df_conflicts, struct name_entry *names, struct traverse_info *info)
+static int traverse_trees_recursive(int n, unsigned long dirmask, unsigned long df_conflicts, struct name_entry *names, struct traverse_info *info)
 {
        int i;
        struct tree_desc t[MAX_UNPACK_TREES];
@@ -240,8 +225,11 @@ static struct cache_entry *create_ce_entry(const struct traverse_info *info, con
        return ce;
 }
 
-static int unpack_nondirectories(int n, unsigned long mask, unsigned long dirmask, struct cache_entry *src[5],
-       const struct name_entry *names, const struct traverse_info *info)
+static int unpack_nondirectories(int n, unsigned long mask,
+                                unsigned long dirmask,
+                                struct cache_entry **src,
+                                const struct name_entry *names,
+                                const struct traverse_info *info)
 {
        int i;
        struct unpack_trees_options *o = info->data;
@@ -291,7 +279,7 @@ static int unpack_nondirectories(int n, unsigned long mask, unsigned long dirmas
 
 static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, struct name_entry *names, struct traverse_info *info)
 {
-       struct cache_entry *src[5] = { NULL, };
+       struct cache_entry *src[MAX_UNPACK_TREES + 1] = { NULL, };
        struct unpack_trees_options *o = info->data;
        const struct name_entry *p = names;
 
@@ -338,6 +326,23 @@ static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, str
                        if (src[0])
                                conflicts |= 1;
                }
+
+               /* special case: "diff-index --cached" looking at a tree */
+               if (o->diff_index_cached &&
+                   n == 1 && dirmask == 1 && S_ISDIR(names->mode)) {
+                       int matches;
+                       matches = cache_tree_matches_traversal(o->src_index->cache_tree,
+                                                              names, info);
+                       /*
+                        * Everything under the name matches.  Adjust o->pos to
+                        * skip the entire hierarchy.
+                        */
+                       if (matches) {
+                               o->pos += matches;
+                               return mask;
+                       }
+               }
+
                if (traverse_trees_recursive(n, dirmask, conflicts,
                                             names, info) < 0)
                        return -1;
@@ -352,7 +357,7 @@ static int unpack_failed(struct unpack_trees_options *o, const char *message)
        discard_index(&o->result);
        if (!o->gently) {
                if (message)
-                       return error(message);
+                       return error("%s", message);
                return -1;
        }
        return -1;
@@ -376,12 +381,15 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
        state.refresh_cache = 1;
 
        memset(&o->result, 0, sizeof(o->result));
-       if (o->src_index)
-               o->result.timestamp = o->src_index->timestamp;
+       o->result.initialized = 1;
+       if (o->src_index) {
+               o->result.timestamp.sec = o->src_index->timestamp.sec;
+               o->result.timestamp.nsec = o->src_index->timestamp.nsec;
+       }
        o->merge_size = len;
 
        if (!dfc)
-               dfc = xcalloc(1, sizeof(struct cache_entry) + 1);
+               dfc = xcalloc(1, cache_entry_size(0));
        o->df_conflict_entry = dfc;
 
        if (len) {
@@ -442,7 +450,7 @@ static int verify_uptodate(struct cache_entry *ce,
 {
        struct stat st;
 
-       if (o->index_only || o->reset)
+       if (o->index_only || o->reset || ce_uptodate(ce))
                return 0;
 
        if (!lstat(ce->name, &st)) {
@@ -493,7 +501,7 @@ static int verify_clean_subdirectory(struct cache_entry *ce, const char *action,
         * anything in the existing directory there.
         */
        int namelen;
-       int pos, i;
+       int i;
        struct dir_struct d;
        char *pathbuf;
        int cnt = 0;
@@ -514,24 +522,20 @@ static int verify_clean_subdirectory(struct cache_entry *ce, const char *action,
         * in that directory.
         */
        namelen = strlen(ce->name);
-       pos = index_name_pos(o->src_index, ce->name, namelen);
-       if (0 <= pos)
-               return cnt; /* we have it as nondirectory */
-       pos = -pos - 1;
-       for (i = pos; i < o->src_index->cache_nr; i++) {
-               struct cache_entry *ce = o->src_index->cache[i];
-               int len = ce_namelen(ce);
+       for (i = o->pos; i < o->src_index->cache_nr; i++) {
+               struct cache_entry *ce2 = o->src_index->cache[i];
+               int len = ce_namelen(ce2);
                if (len < namelen ||
-                   strncmp(ce->name, ce->name, namelen) ||
-                   ce->name[namelen] != '/')
+                   strncmp(ce->name, ce2->name, namelen) ||
+                   ce2->name[namelen] != '/')
                        break;
                /*
-                * ce->name is an entry in the subdirectory.
+                * ce2->name is an entry in the subdirectory.
                 */
-               if (!ce_stage(ce)) {
-                       if (verify_uptodate(ce, o))
+               if (!ce_stage(ce2)) {
+                       if (verify_uptodate(ce2, o))
                                return -1;
-                       add_entry(o, ce, CE_REMOVE, 0);
+                       add_entry(o, ce2, CE_REMOVE, 0);
                }
                cnt++;
        }
@@ -547,7 +551,7 @@ static int verify_clean_subdirectory(struct cache_entry *ce, const char *action,
        memset(&d, 0, sizeof(d));
        if (o->dir)
                d.exclude_per_dir = o->dir->exclude_per_dir;
-       i = read_directory(&d, ce->name, pathbuf, namelen+1, NULL);
+       i = read_directory(&d, pathbuf, namelen+1, NULL);
        if (i)
                return o->gently ? -1 :
                        error(ERRORMSG(o, not_uptodate_dir), ce->name);
@@ -583,11 +587,11 @@ static int verify_absent(struct cache_entry *ce, const char *action,
        if (o->index_only || o->reset || !o->update)
                return 0;
 
-       if (has_symlink_leading_path(ce_namelen(ce), ce->name))
+       if (has_symlink_or_noent_leading_path(ce->name, ce_namelen(ce)))
                return 0;
 
        if (!lstat(ce->name, &st)) {
-               int cnt;
+               int ret;
                int dtype = ce_to_dtype(ce);
                struct cache_entry *result;
 
@@ -615,13 +619,15 @@ static int verify_absent(struct cache_entry *ce, const char *action,
                         * files that are in "foo/" we would lose
                         * it.
                         */
-                       cnt = verify_clean_subdirectory(ce, action, o);
+                       ret = verify_clean_subdirectory(ce, action, o);
+                       if (ret < 0)
+                               return ret;
 
                        /*
                         * If this removed entries from the index,
                         * what that means is:
                         *
-                        * (1) the caller unpack_trees_rec() saw path/foo
+                        * (1) the caller unpack_callback() saw path/foo
                         * in the index, and it has not removed it because
                         * it thinks it is handling 'path' as blob with
                         * D/F conflict;
@@ -634,7 +640,7 @@ static int verify_absent(struct cache_entry *ce, const char *action,
                         * We need to increment it by the number of
                         * deleted entries here.
                         */
-                       o->pos += cnt;
+                       o->pos += ret;
                        return 0;
                }
 
@@ -940,8 +946,17 @@ int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o)
                        return -1;
                }
        }
-       else if (newtree)
+       else if (newtree) {
+               if (oldtree && !o->initial_checkout) {
+                       /*
+                        * deletion of the path was staged;
+                        */
+                       if (same(oldtree, newtree))
+                               return 1;
+                       return reject_merge(oldtree, o);
+               }
                return merged_entry(newtree, current, o);
+       }
        return deleted_entry(oldtree, current, o);
 }
 
@@ -984,12 +999,12 @@ int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o)
                return error("Cannot do a oneway merge of %d trees",
                             o->merge_size);
 
-       if (!a)
+       if (!a || a == o->df_conflict_entry)
                return deleted_entry(old, old, o);
 
        if (old && same(old, a)) {
                int update = 0;
-               if (o->reset) {
+               if (o->reset && !ce_uptodate(old)) {
                        struct stat st;
                        if (lstat(old->name, &st) ||
                            ie_match_stat(o->src_index, old, &st, CE_MATCH_IGNORE_VALID))