sha1_name: convert get_sha1* to get_oid*

[thirdparty/git.git] / apply.c

diff --git a/apply.c b/apply.c
index b963d7d8fb7ee81300d4383b7bc007fc74af84c5..9889b47d6a51c42f00a4da712d99683d904405e6 100644 (file)
--- a/apply.c
+++ b/apply.c
@@ -211,6 +211,7 @@ struct patch {
        unsigned ws_rule;
        int lines_added, lines_deleted;
        int score;
+       int extension_linenr; /* first line specifying delete/new/rename/copy */
        unsigned int is_toplevel_relative:1;
        unsigned int inaccurate_eof:1;
        unsigned int is_binary:1;
@@ -961,13 +962,12 @@ static int gitdiff_verify_name(struct apply_state *state,
        }
 
        if (*name) {
-               int len = strlen(*name);
                char *another;
                if (isnull)
                        return error(_("git apply: bad git-diff - expected /dev/null, got %s on line %d"),
                                     *name, state->linenr);
                another = find_name(state, line, NULL, state->p_value, TERM_TAB);
-               if (!another || memcmp(another, *name, len + 1)) {
+               if (!another || strcmp(another, *name)) {
                        free(another);
                        return error((side == DIFF_NEW_NAME) ?
                            _("git apply: bad git-diff - inconsistent new filename on line %d") :
@@ -975,8 +975,7 @@ static int gitdiff_verify_name(struct apply_state *state,
                }
                free(another);
        } else {
-               /* expect "/dev/null" */
-               if (memcmp("/dev/null", line, 9) || line[9] != '\n')
+               if (!starts_with(line, "/dev/null\n"))
                        return error(_("git apply: bad git-diff - expected /dev/null on line %d"), state->linenr);
        }
 
@@ -1001,20 +1000,27 @@ static int gitdiff_newname(struct apply_state *state,
                                   DIFF_NEW_NAME);
 }
 
+static int parse_mode_line(const char *line, int linenr, unsigned int *mode)
+{
+       char *end;
+       *mode = strtoul(line, &end, 8);
+       if (end == line || !isspace(*end))
+               return error(_("invalid mode on line %d: %s"), linenr, line);
+       return 0;
+}
+
 static int gitdiff_oldmode(struct apply_state *state,
                           const char *line,
                           struct patch *patch)
 {
-       patch->old_mode = strtoul(line, NULL, 8);
-       return 0;
+       return parse_mode_line(line, state->linenr, &patch->old_mode);
 }
 
 static int gitdiff_newmode(struct apply_state *state,
                           const char *line,
                           struct patch *patch)
 {
-       patch->new_mode = strtoul(line, NULL, 8);
-       return 0;
+       return parse_mode_line(line, state->linenr, &patch->new_mode);
 }
 
 static int gitdiff_delete(struct apply_state *state,
@@ -1128,7 +1134,7 @@ static int gitdiff_index(struct apply_state *state,
        memcpy(patch->new_sha1_prefix, line, len);
        patch->new_sha1_prefix[len] = 0;
        if (*ptr == ' ')
-               patch->old_mode = strtoul(ptr+1, NULL, 8);
+               return gitdiff_oldmode(state, ptr + 1, patch);
        return 0;
 }
 
@@ -1312,6 +1318,18 @@ static char *git_header_name(struct apply_state *state,
        }
 }
 
+static int check_header_line(struct apply_state *state, struct patch *patch)
+{
+       int extensions = (patch->is_delete == 1) + (patch->is_new == 1) +
+                        (patch->is_rename == 1) + (patch->is_copy == 1);
+       if (extensions > 1)
+               return error(_("inconsistent header lines %d and %d"),
+                            patch->extension_linenr, state->linenr);
+       if (extensions && !patch->extension_linenr)
+               patch->extension_linenr = state->linenr;
+       return 0;
+}
+
 /* Verify that we recognize the lines following a git header */
 static int parse_git_header(struct apply_state *state,
                            const char *line,
@@ -1378,6 +1396,8 @@ static int parse_git_header(struct apply_state *state,
                        res = p->fn(state, line + oplen, patch);
                        if (res < 0)
                                return -1;
+                       if (check_header_line(state, patch))
+                               return -1;
                        if (res > 0)
                                return offset;
                        break;
@@ -1575,7 +1595,8 @@ static int find_header(struct apply_state *state,
                                patch->old_name = xstrdup(patch->def_name);
                                patch->new_name = xstrdup(patch->def_name);
                        }
-                       if (!patch->is_delete && !patch->new_name) {
+                       if ((!patch->new_name && !patch->is_delete) ||
+                           (!patch->old_name && !patch->is_new)) {
                                error(_("git diff header lacks filename information "
                                             "(line %d)"), state->linenr);
                                return -128;
@@ -2078,7 +2099,7 @@ static int use_patch(struct apply_state *state, struct patch *p)
        /* See if it matches any of exclude/include rule */
        for (i = 0; i < state->limit_by_name.nr; i++) {
                struct string_list_item *it = &state->limit_by_name.items[i];
-               if (!wildmatch(it->string, pathname, 0, NULL))
+               if (!wildmatch(it->string, pathname, 0))
                        return (it->util != NULL);
        }
 
@@ -3530,7 +3551,7 @@ static int try_threeway(struct apply_state *state,
        /* Preimage the patch was prepared for */
        if (patch->is_new)
                write_sha1_file("", 0, blob_type, pre_oid.hash);
-       else if (get_sha1(patch->old_sha1_prefix, pre_oid.hash) ||
+       else if (get_oid(patch->old_sha1_prefix, &pre_oid) ||
                 read_blob_object(&buf, &pre_oid, patch->old_mode))
                return error(_("repository lacks the necessary blob to fall back on 3-way merge."));
 
@@ -4054,7 +4075,7 @@ static int build_fake_ancestor(struct apply_state *state, struct patch *list)
                        else
                                return error(_("sha1 information is lacking or "
                                               "useless for submodule %s"), name);
-               } else if (!get_sha1_blob(patch->old_sha1_prefix, oid.hash)) {
+               } else if (!get_oid_blob(patch->old_sha1_prefix, &oid)) {
                        ; /* ok */
                } else if (!patch->lines_added && !patch->lines_deleted) {
                        /* mode-only change: update the current */