diff options
Diffstat (limited to 'config.c')
| -rw-r--r-- | config.c | 86 |
1 files changed, 84 insertions, 2 deletions
@@ -14,6 +14,11 @@ struct config_source { struct config_source *prev; union { FILE *file; + struct config_buf { + const char *buf; + size_t len; + size_t pos; + } buf; } u; const char *name; int linenr; @@ -45,6 +50,28 @@ static long config_file_ftell(struct config_source *conf) return ftell(conf->u.file); } + +static int config_buf_fgetc(struct config_source *conf) +{ + if (conf->u.buf.pos < conf->u.buf.len) + return conf->u.buf.buf[conf->u.buf.pos++]; + + return EOF; +} + +static int config_buf_ungetc(int c, struct config_source *conf) +{ + if (conf->u.buf.pos > 0) + return conf->u.buf.buf[--conf->u.buf.pos]; + + return EOF; +} + +static long config_buf_ftell(struct config_source *conf) +{ + return conf->u.buf.pos; +} + #define MAX_INCLUDE_DEPTH 10 static const char include_depth_advice[] = "exceeded maximum include depth (%d) while including\n" @@ -961,6 +988,57 @@ int git_config_from_file(config_fn_t fn, const char *filename, void *data) return ret; } +int git_config_from_buf(config_fn_t fn, const char *name, const char *buf, + size_t len, void *data) +{ + struct config_source top; + + top.u.buf.buf = buf; + top.u.buf.len = len; + top.u.buf.pos = 0; + top.name = name; + top.fgetc = config_buf_fgetc; + top.ungetc = config_buf_ungetc; + top.ftell = config_buf_ftell; + + return do_config_from(&top, fn, data); +} + +static int git_config_from_blob_sha1(config_fn_t fn, + const char *name, + const unsigned char *sha1, + void *data) +{ + enum object_type type; + char *buf; + unsigned long size; + int ret; + + buf = read_sha1_file(sha1, &type, &size); + if (!buf) + return error("unable to load config blob object '%s'", name); + if (type != OBJ_BLOB) { + free(buf); + return error("reference '%s' does not point to a blob", name); + } + + ret = git_config_from_buf(fn, name, buf, size, data); + free(buf); + + return ret; +} + +static int git_config_from_blob_ref(config_fn_t fn, + const char *name, + void *data) +{ + unsigned char sha1[20]; + + if (get_sha1(name, sha1) < 0) + return error("unable to resolve config blob '%s'", name); + return git_config_from_blob_sha1(fn, name, sha1, data); +} + const char *git_etc_gitconfig(void) { static const char *system_wide; @@ -1026,7 +1104,9 @@ int git_config_early(config_fn_t fn, void *data, const char *repo_config) } int git_config_with_options(config_fn_t fn, void *data, - const char *filename, int respect_includes) + const char *filename, + const char *blob_ref, + int respect_includes) { char *repo_config = NULL; int ret; @@ -1045,6 +1125,8 @@ int git_config_with_options(config_fn_t fn, void *data, */ if (filename) return git_config_from_file(fn, filename, data); + else if (blob_ref) + return git_config_from_blob_ref(fn, blob_ref, data); repo_config = git_pathdup("config"); ret = git_config_early(fn, data, repo_config); @@ -1055,7 +1137,7 @@ int git_config_with_options(config_fn_t fn, void *data, int git_config(config_fn_t fn, void *data) { - return git_config_with_options(fn, data, NULL, 1); + return git_config_with_options(fn, data, NULL, NULL, 1); } /* |