diff --git a/Documentation/config.txt b/Documentation/config.txt index 50a2288999..0e206759fd 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -1521,6 +1521,14 @@ mailmap.file:: subdirectory, or somewhere outside of the repository itself. See linkgit:git-shortlog[1] and linkgit:git-blame[1]. +mailmap.blob:: + Like `mailmap.file`, but consider the value as a reference to a + blob in the repository. If both `mailmap.file` and + `mailmap.blob` are given, both are parsed, with entries from + `mailmap.file` taking precedence. In a bare repository, this + defaults to `HEAD:.mailmap`. In a non-bare repository, it + defaults to empty. + man.viewer:: Specify the programs that may be used to display help in the 'man' format. See linkgit:git-help[1]. diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt index 585dac40ba..08a185db7f 100644 --- a/Documentation/git-log.txt +++ b/Documentation/git-log.txt @@ -167,7 +167,7 @@ log.showroot:: `git log -p` output would be shown without a diff attached. The default is `true`. -mailmap.file:: +mailmap.*:: See linkgit:git-shortlog[1]. notes.displayRef:: diff --git a/Documentation/mailmap.txt b/Documentation/mailmap.txt index dd89fca3f8..4a8c276529 100644 --- a/Documentation/mailmap.txt +++ b/Documentation/mailmap.txt @@ -1,5 +1,6 @@ If the file `.mailmap` exists at the toplevel of the repository, or at -the location pointed to by the mailmap.file configuration option, it +the location pointed to by the mailmap.file or mailmap.blob +configuration options, it is used to map author and committer names and email addresses to canonical real names and email addresses. diff --git a/cache.h b/cache.h index 8f89f17a0c..8ceb6b8e8d 100644 --- a/cache.h +++ b/cache.h @@ -1164,6 +1164,7 @@ extern int author_ident_sufficiently_given(void); extern const char *git_commit_encoding; extern const char *git_log_output_encoding; extern const char *git_mailmap_file; +extern const char *git_mailmap_blob; /* IO helper functions */ extern void maybe_flush_or_die(FILE *, const char *); diff --git a/config.c b/config.c index fb3f8681ee..97364c03fc 100644 --- a/config.c +++ b/config.c @@ -839,6 +839,8 @@ static int git_default_mailmap_config(const char *var, const char *value) { if (!strcmp(var, "mailmap.file")) return git_config_string(&git_mailmap_file, var, value); + if (!strcmp(var, "mailmap.blob")) + return git_config_string(&git_mailmap_blob, var, value); /* Add other config variables here and to Documentation/config.txt. */ return 0; diff --git a/mailmap.c b/mailmap.c index ea4b471ede..b16542febe 100644 --- a/mailmap.c +++ b/mailmap.c @@ -10,6 +10,7 @@ static inline void debug_mm(const char *format, ...) {} #endif const char *git_mailmap_file; +const char *git_mailmap_blob; struct mailmap_info { char *name; @@ -129,54 +130,119 @@ static char *parse_name_and_email(char *buffer, char **name, return (*right == '\0' ? NULL : right); } -static int read_single_mailmap(struct string_list *map, const char *filename, char **repo_abbrev) +static void read_mailmap_line(struct string_list *map, char *buffer, + char **repo_abbrev) +{ + char *name1 = NULL, *email1 = NULL, *name2 = NULL, *email2 = NULL; + if (buffer[0] == '#') { + static const char abbrev[] = "# repo-abbrev:"; + int abblen = sizeof(abbrev) - 1; + int len = strlen(buffer); + + if (!repo_abbrev) + return; + + if (len && buffer[len - 1] == '\n') + buffer[--len] = 0; + if (!strncmp(buffer, abbrev, abblen)) { + char *cp; + + if (repo_abbrev) + free(*repo_abbrev); + *repo_abbrev = xmalloc(len); + + for (cp = buffer + abblen; isspace(*cp); cp++) + ; /* nothing */ + strcpy(*repo_abbrev, cp); + } + return; + } + if ((name2 = parse_name_and_email(buffer, &name1, &email1, 0)) != NULL) + parse_name_and_email(name2, &name2, &email2, 1); + + if (email1) + add_mapping(map, name1, email1, name2, email2); +} + +static int read_mailmap_file(struct string_list *map, const char *filename, + char **repo_abbrev) { char buffer[1024]; - FILE *f = (filename == NULL ? NULL : fopen(filename, "r")); + FILE *f; - if (f == NULL) - return 1; - while (fgets(buffer, sizeof(buffer), f) != NULL) { - char *name1 = NULL, *email1 = NULL, *name2 = NULL, *email2 = NULL; - if (buffer[0] == '#') { - static const char abbrev[] = "# repo-abbrev:"; - int abblen = sizeof(abbrev) - 1; - int len = strlen(buffer); + if (!filename) + return 0; - if (!repo_abbrev) - continue; - - if (len && buffer[len - 1] == '\n') - buffer[--len] = 0; - if (!strncmp(buffer, abbrev, abblen)) { - char *cp; - - if (repo_abbrev) - free(*repo_abbrev); - *repo_abbrev = xmalloc(len); - - for (cp = buffer + abblen; isspace(*cp); cp++) - ; /* nothing */ - strcpy(*repo_abbrev, cp); - } - continue; - } - if ((name2 = parse_name_and_email(buffer, &name1, &email1, 0)) != NULL) - parse_name_and_email(name2, &name2, &email2, 1); - - if (email1) - add_mapping(map, name1, email1, name2, email2); + f = fopen(filename, "r"); + if (!f) { + if (errno == ENOENT) + return 0; + return error("unable to open mailmap at %s: %s", + filename, strerror(errno)); } + + while (fgets(buffer, sizeof(buffer), f) != NULL) + read_mailmap_line(map, buffer, repo_abbrev); fclose(f); return 0; } +static void read_mailmap_buf(struct string_list *map, + const char *buf, unsigned long len, + char **repo_abbrev) +{ + while (len) { + const char *end = strchrnul(buf, '\n'); + unsigned long linelen = end - buf + 1; + char *line = xmemdupz(buf, linelen); + + read_mailmap_line(map, line, repo_abbrev); + + free(line); + buf += linelen; + len -= linelen; + } +} + +static int read_mailmap_blob(struct string_list *map, + const char *name, + char **repo_abbrev) +{ + unsigned char sha1[20]; + char *buf; + unsigned long size; + enum object_type type; + + if (!name) + return 0; + if (get_sha1(name, sha1) < 0) + return 0; + + buf = read_sha1_file(sha1, &type, &size); + if (!buf) + return error("unable to read mailmap object at %s", name); + if (type != OBJ_BLOB) + return error("mailmap is not a blob: %s", name); + + read_mailmap_buf(map, buf, size, repo_abbrev); + + free(buf); + return 0; +} + int read_mailmap(struct string_list *map, char **repo_abbrev) { + int err = 0; + map->strdup_strings = 1; - /* each failure returns 1, so >1 means both calls failed */ - return read_single_mailmap(map, ".mailmap", repo_abbrev) + - read_single_mailmap(map, git_mailmap_file, repo_abbrev) > 1; + + if (!git_mailmap_blob && is_bare_repository()) + git_mailmap_blob = "HEAD:.mailmap"; + + err |= read_mailmap_file(map, ".mailmap", repo_abbrev); + err |= read_mailmap_blob(map, git_mailmap_blob, repo_abbrev); + err |= read_mailmap_file(map, git_mailmap_file, repo_abbrev); + return err; } void clear_mailmap(struct string_list *map) diff --git a/t/t4203-mailmap.sh b/t/t4203-mailmap.sh index 1f182f612c..aae30d97b1 100755 --- a/t/t4203-mailmap.sh +++ b/t/t4203-mailmap.sh @@ -149,6 +149,104 @@ test_expect_success 'No mailmap files, but configured' ' test_cmp expect actual ' +test_expect_success 'setup mailmap blob tests' ' + git checkout -b map && + test_when_finished "git checkout master" && + cat >just-bugs <<-\EOF && + Blob Guy + EOF + cat >both <<-\EOF && + Blob Guy + Blob Guy + EOF + git add just-bugs both && + git commit -m "my mailmaps" && + echo "Repo Guy " >.mailmap && + echo "Internal Guy " >internal.map +' + +test_expect_success 'mailmap.blob set' ' + cat >expect <<-\EOF && + Blob Guy (1): + second + + Repo Guy (1): + initial + + EOF + git -c mailmap.blob=map:just-bugs shortlog HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'mailmap.blob overrides .mailmap' ' + cat >expect <<-\EOF && + Blob Guy (2): + initial + second + + EOF + git -c mailmap.blob=map:both shortlog HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'mailmap.file overrides mailmap.blob' ' + cat >expect <<-\EOF && + Blob Guy (1): + second + + Internal Guy (1): + initial + + EOF + git \ + -c mailmap.blob=map:both \ + -c mailmap.file=internal.map \ + shortlog HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'mailmap.blob can be missing' ' + cat >expect <<-\EOF && + Repo Guy (1): + initial + + nick1 (1): + second + + EOF + git -c mailmap.blob=map:nonexistent shortlog HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'mailmap.blob defaults to off in non-bare repo' ' + git init non-bare && + ( + cd non-bare && + test_commit one .mailmap "Fake Name " && + echo " 1 Fake Name" >expect && + git shortlog -ns HEAD >actual && + test_cmp expect actual && + rm .mailmap && + echo " 1 A U Thor" >expect && + git shortlog -ns HEAD >actual && + test_cmp expect actual + ) +' + +test_expect_success 'mailmap.blob defaults to HEAD:.mailmap in bare repo' ' + git clone --bare non-bare bare && + ( + cd bare && + echo " 1 Fake Name" >expect && + git shortlog -ns HEAD >actual && + test_cmp expect actual + ) +' + +test_expect_success 'cleanup after mailmap.blob tests' ' + rm -f .mailmap +' + # Extended mailmap configurations should give us the following output for shortlog cat >expect <<\EOF A U Thor (1):