diff options
Diffstat (limited to 'commit.c')
| -rw-r--r-- | commit.c | 170 |
1 files changed, 155 insertions, 15 deletions
@@ -7,6 +7,9 @@ #include "revision.h" #include "notes.h" #include "gpg-interface.h" +#include "mergesort.h" + +static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **); int save_commit_buffer = 1; @@ -67,7 +70,7 @@ struct commit *lookup_commit_reference_by_name(const char *name) unsigned char sha1[20]; struct commit *commit; - if (get_sha1(name, sha1)) + if (get_sha1_committish(name, sha1)) return NULL; commit = lookup_commit_reference(sha1); if (!commit || parse_commit(commit)) @@ -390,15 +393,31 @@ struct commit_list * commit_list_insert_by_date(struct commit *item, struct comm return commit_list_insert(item, pp); } +static int commit_list_compare_by_date(const void *a, const void *b) +{ + unsigned long a_date = ((const struct commit_list *)a)->item->date; + unsigned long b_date = ((const struct commit_list *)b)->item->date; + if (a_date < b_date) + return 1; + if (a_date > b_date) + return -1; + return 0; +} + +static void *commit_list_get_next(const void *a) +{ + return ((const struct commit_list *)a)->next; +} + +static void commit_list_set_next(void *a, void *next) +{ + ((struct commit_list *)a)->next = next; +} void commit_list_sort_by_date(struct commit_list **list) { - struct commit_list *ret = NULL; - while (*list) { - commit_list_insert_by_date((*list)->item, &ret); - *list = (*list)->next; - } - *list = ret; + *list = llist_mergesort(*list, commit_list_get_next, commit_list_set_next, + commit_list_compare_by_date); } struct commit *pop_most_recent_commit(struct commit_list **list, @@ -422,7 +441,8 @@ struct commit *pop_most_recent_commit(struct commit_list **list, return ret; } -void clear_commit_marks(struct commit *commit, unsigned int mark) +static void clear_commit_marks_1(struct commit_list **plist, + struct commit *commit, unsigned int mark) { while (commit) { struct commit_list *parents; @@ -437,12 +457,20 @@ void clear_commit_marks(struct commit *commit, unsigned int mark) return; while ((parents = parents->next)) - clear_commit_marks(parents->item, mark); + commit_list_insert(parents->item, plist); commit = commit->parents->item; } } +void clear_commit_marks(struct commit *commit, unsigned int mark) +{ + struct commit_list *list = NULL; + commit_list_insert(commit, &list); + while (list) + clear_commit_marks_1(&list, pop_commit(&list), mark); +} + void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark) { struct object *object; @@ -1052,8 +1080,9 @@ static int excluded_header_field(const char *field, size_t len, const char **exc return 0; } -struct commit_extra_header *read_commit_extra_header_lines(const char *buffer, size_t size, - const char **exclude) +static struct commit_extra_header *read_commit_extra_header_lines( + const char *buffer, size_t size, + const char **exclude) { struct commit_extra_header *extra = NULL, **tail = &extra, *it = NULL; const char *line, *next, *eof, *eob; @@ -1120,8 +1149,92 @@ int commit_tree(const struct strbuf *msg, unsigned char *tree, return result; } +static int find_invalid_utf8(const char *buf, int len) +{ + int offset = 0; + + while (len) { + unsigned char c = *buf++; + int bytes, bad_offset; + + len--; + offset++; + + /* Simple US-ASCII? No worries. */ + if (c < 0x80) + continue; + + bad_offset = offset-1; + + /* + * Count how many more high bits set: that's how + * many more bytes this sequence should have. + */ + bytes = 0; + while (c & 0x40) { + c <<= 1; + bytes++; + } + + /* Must be between 1 and 5 more bytes */ + if (bytes < 1 || bytes > 5) + return bad_offset; + + /* Do we *have* that many bytes? */ + if (len < bytes) + return bad_offset; + + offset += bytes; + len -= bytes; + + /* And verify that they are good continuation bytes */ + do { + if ((*buf++ & 0xc0) != 0x80) + return bad_offset; + } while (--bytes); + + /* We could/should check the value and length here too */ + } + return -1; +} + +/* + * This verifies that the buffer is in proper utf8 format. + * + * If it isn't, it assumes any non-utf8 characters are Latin1, + * and does the conversion. + * + * Fixme: we should probably also disallow overlong forms and + * invalid characters. But we don't do that currently. + */ +static int verify_utf8(struct strbuf *buf) +{ + int ok = 1; + long pos = 0; + + for (;;) { + int bad; + unsigned char c; + unsigned char replace[2]; + + bad = find_invalid_utf8(buf->buf + pos, buf->len - pos); + if (bad < 0) + return ok; + pos += bad; + ok = 0; + c = buf->buf[pos]; + strbuf_remove(buf, pos, 1); + + /* We know 'c' must be in the range 128-255 */ + replace[0] = 0xc0 + (c >> 6); + replace[1] = 0x80 + (c & 0x3f); + strbuf_insert(buf, pos, replace, 2); + pos += 2; + } +} + static const char commit_utf8_warn[] = -"Warning: commit message does not conform to UTF-8.\n" +"Warning: commit message did not conform to UTF-8.\n" "You may want to amend it after fixing the message, or set the config\n" "variable i18n.commitencoding to the encoding your project uses.\n"; @@ -1162,9 +1275,9 @@ int commit_tree_extended(const struct strbuf *msg, unsigned char *tree, /* Person/date information */ if (!author) - author = git_author_info(IDENT_ERROR_ON_NO_NAME); + author = git_author_info(IDENT_STRICT); strbuf_addf(&buffer, "author %s\n", author); - strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME)); + strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_STRICT)); if (!encoding_is_utf8) strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding); @@ -1178,7 +1291,7 @@ int commit_tree_extended(const struct strbuf *msg, unsigned char *tree, strbuf_addbuf(&buffer, msg); /* And check the encoding */ - if (encoding_is_utf8 && !is_utf8(buffer.buf)) + if (encoding_is_utf8 && !verify_utf8(&buffer)) fprintf(stderr, commit_utf8_warn); if (sign_commit && do_sign_commit(&buffer, sign_commit)) @@ -1207,3 +1320,30 @@ struct commit *get_merge_parent(const char *name) } return commit; } + +/* + * Append a commit to the end of the commit_list. + * + * next starts by pointing to the variable that holds the head of an + * empty commit_list, and is updated to point to the "next" field of + * the last item on the list as new commits are appended. + * + * Usage example: + * + * struct commit_list *list; + * struct commit_list **next = &list; + * + * next = commit_list_append(c1, next); + * next = commit_list_append(c2, next); + * assert(commit_list_count(list) == 2); + * return list; + */ +struct commit_list **commit_list_append(struct commit *commit, + struct commit_list **next) +{ + struct commit_list *new = xmalloc(sizeof(struct commit_list)); + new->item = commit; + *next = new; + new->next = NULL; + return &new->next; +} |