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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "git2/mailmap.h"
#include "blob.h"
#include "commit.h"
#include "git2/common.h"
#include "git2/repository.h"
#include "git2/revparse.h"
#include "git2/sys/commit.h"
struct mailmap_entry {
char* to_name;
char* to_email;
char* from_name;
char* from_email;
};
struct git_mailmap {
git_vector lines;
};
// Returns -1 on failure, length of the string scanned successfully on success,
// guaranteed to be less that `length`.
ssize_t parse_name_and_email(
const char *line,
size_t length,
const char** name,
size_t* name_len,
const char** email,
size_t* email_len,
bool allow_empty_email)
{
const char* email_start;
const char* email_end;
const char* name_start;
const char* name_end;
email_start = memchr(line, '<', length);
if (!email_start)
return -1;
email_end = memchr(email_start, '>', length - (email_start - line));
if (!email_end)
return -1;
assert(email_end > email_start);
*email_len = email_end - email_start - 1;
*email = email_start + 1;
if (*email == email_end && !allow_empty_email)
return -1;
// Now look for the name.
name_start = line;
while (name_start < email_start && isspace(*name_start))
++name_start;
*name = name_start;
name_end = email_start;
while (name_end > name_start && isspace(*(name_end - 1)))
name_end--;
assert(name_end >= name_start);
*name_len = name_end - name_start;
return email_end - line;
}
static void git_mailmap_parse_line(
git_mailmap* mailmap,
const char* contents,
size_t size)
{
struct mailmap_entry* entry;
const char* to_name;
size_t to_name_length;
const char* to_email;
size_t to_email_length;
const char* from_name;
size_t from_name_length;
const char* from_email;
size_t from_email_length;
ssize_t ret;
if (!size)
return;
if (contents[0] == '#')
return;
ret = parse_name_and_email(
contents,
size,
&to_name,
&to_name_length,
&to_email,
&to_email_length,
false);
if (ret < 0)
return;
ret = parse_name_and_email(
contents + ret + 1,
size - ret - 1,
&from_name,
&from_name_length,
&from_email,
&from_email_length,
true);
if (ret < 0)
return;
entry = git__malloc(sizeof(struct mailmap_entry));
entry->to_name = git__strndup(to_name, to_name_length);
entry->to_email = git__strndup(to_email, to_email_length);
entry->from_name = git__strndup(from_name, from_name_length);
entry->from_email = git__strndup(from_email, from_email_length);
printf("%s <%s> \"%s\" <%s>\n",
entry->to_name,
entry->to_email,
entry->from_name,
entry->from_email);
git_vector_insert(&mailmap->lines, entry);
}
static void git_mailmap_parse(
git_mailmap* mailmap,
const char* contents,
size_t size)
{
size_t start = 0;
size_t i;
for (i = 0; i < size; ++i) {
if (contents[i] != '\n')
continue;
git_mailmap_parse_line(mailmap, contents + start, i - start);
start = i + 1;
}
}
int git_mailmap_create(git_mailmap** mailmap, git_repository* repo)
{
git_commit* head = NULL;
git_blob* mailmap_blob = NULL;
git_off_t size = 0;
const char* contents = NULL;
int ret;
*mailmap = git__malloc(sizeof(struct git_mailmap));
git_vector_init(&(*mailmap)->lines, 0, NULL);
ret = git_revparse_single((git_object **)&head, repo, "HEAD");
if (ret)
goto error;
ret = git_object_lookup_bypath(
(git_object**) &mailmap_blob,
(const git_object*) head,
".mailmap",
GIT_OBJ_BLOB);
if (ret)
goto error;
contents = git_blob_rawcontent(mailmap_blob);
size = git_blob_rawsize(mailmap_blob);
git_mailmap_parse(*mailmap, contents, size);
return 0;
error:
assert(ret);
if (mailmap_blob)
git_blob_free(mailmap_blob);
if (head)
git_commit_free(head);
git_mailmap_free(*mailmap);
return ret;
}
void git_mailmap_free(struct git_mailmap* mailmap)
{
size_t i;
struct mailmap_entry* line;
git_vector_foreach(&mailmap->lines, i, line) {
git__free((char*)line->to_name);
git__free((char*)line->to_email);
git__free((char*)line->from_name);
git__free((char*)line->from_email);
git__free(line);
}
git_vector_clear(&mailmap->lines);
git__free(mailmap);
}