From f9ee2fcdfa05586b6a4476c7aa5f4f0162e48455 Mon Sep 17 00:00:00 2001 From: Brandon Williams Date: Wed, 2 Aug 2017 12:49:23 -0700 Subject: grep: recurse in-process using 'struct repository' Convert grep to use 'struct repository' which enables recursing into submodules to be handled in-process. Signed-off-by: Brandon Williams Signed-off-by: Junio C Hamano --- Documentation/git-grep.txt | 7 - builtin/grep.c | 396 ++++++++++----------------------------------- cache.h | 1 - git.c | 2 +- grep.c | 13 -- grep.h | 1 - setup.c | 12 +- 7 files changed, 88 insertions(+), 344 deletions(-) diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt index 5033483db4..720c7850e2 100644 --- a/Documentation/git-grep.txt +++ b/Documentation/git-grep.txt @@ -95,13 +95,6 @@ OPTIONS option the prefix of all submodule output will be the name of the parent project's object. ---parent-basename :: - For internal use only. In order to produce uniform output with the - --recurse-submodules option, this option can be used to provide the - basename of a parent's object to a submodule so the submodule - can prefix its output with the parent's name rather than the SHA1 of - the submodule. - -a:: --text:: Process binary files as if they were text. diff --git a/builtin/grep.c b/builtin/grep.c index 7e79eb1a75..cd0e51f3c0 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -28,13 +28,7 @@ static char const * const grep_usage[] = { NULL }; -static const char *super_prefix; static int recurse_submodules; -static struct argv_array submodule_options = ARGV_ARRAY_INIT; -static const char *parent_basename; - -static int grep_submodule_launch(struct grep_opt *opt, - const struct grep_source *gs); #define GREP_NUM_THREADS_DEFAULT 8 static int num_threads; @@ -186,10 +180,7 @@ static void *run(void *arg) break; opt->output_priv = w; - if (w->source.type == GREP_SOURCE_SUBMODULE) - hit |= grep_submodule_launch(opt, &w->source); - else - hit |= grep_source(opt, &w->source); + hit |= grep_source(opt, &w->source); grep_source_clear_data(&w->source); work_done(w); } @@ -327,21 +318,13 @@ static int grep_oid(struct grep_opt *opt, const struct object_id *oid, { struct strbuf pathbuf = STRBUF_INIT; - if (super_prefix) { - strbuf_add(&pathbuf, filename, tree_name_len); - strbuf_addstr(&pathbuf, super_prefix); - strbuf_addstr(&pathbuf, filename + tree_name_len); + if (opt->relative && opt->prefix_length) { + quote_path_relative(filename + tree_name_len, opt->prefix, &pathbuf); + strbuf_insert(&pathbuf, 0, filename, tree_name_len); } else { strbuf_addstr(&pathbuf, filename); } - if (opt->relative && opt->prefix_length) { - char *name = strbuf_detach(&pathbuf, NULL); - quote_path_relative(name + tree_name_len, opt->prefix, &pathbuf); - strbuf_insert(&pathbuf, 0, name, tree_name_len); - free(name); - } - #ifndef NO_PTHREADS if (num_threads) { add_work(opt, GREP_SOURCE_OID, pathbuf.buf, path, oid); @@ -366,15 +349,10 @@ static int grep_file(struct grep_opt *opt, const char *filename) { struct strbuf buf = STRBUF_INIT; - if (super_prefix) - strbuf_addstr(&buf, super_prefix); - strbuf_addstr(&buf, filename); - - if (opt->relative && opt->prefix_length) { - char *name = strbuf_detach(&buf, NULL); - quote_path_relative(name, opt->prefix, &buf); - free(name); - } + if (opt->relative && opt->prefix_length) + quote_path_relative(filename, opt->prefix, &buf); + else + strbuf_addstr(&buf, filename); #ifndef NO_PTHREADS if (num_threads) { @@ -421,284 +399,89 @@ static void run_pager(struct grep_opt *opt, const char *prefix) exit(status); } -static void compile_submodule_options(const struct grep_opt *opt, - const char **argv, - int cached, int untracked, - int opt_exclude, int use_index, - int pattern_type_arg) -{ - struct grep_pat *pattern; - - if (recurse_submodules) - argv_array_push(&submodule_options, "--recurse-submodules"); - - if (cached) - argv_array_push(&submodule_options, "--cached"); - if (!use_index) - argv_array_push(&submodule_options, "--no-index"); - if (untracked) - argv_array_push(&submodule_options, "--untracked"); - if (opt_exclude > 0) - argv_array_push(&submodule_options, "--exclude-standard"); - - if (opt->invert) - argv_array_push(&submodule_options, "-v"); - if (opt->ignore_case) - argv_array_push(&submodule_options, "-i"); - if (opt->word_regexp) - argv_array_push(&submodule_options, "-w"); - switch (opt->binary) { - case GREP_BINARY_NOMATCH: - argv_array_push(&submodule_options, "-I"); - break; - case GREP_BINARY_TEXT: - argv_array_push(&submodule_options, "-a"); - break; - default: - break; - } - if (opt->allow_textconv) - argv_array_push(&submodule_options, "--textconv"); - if (opt->max_depth != -1) - argv_array_pushf(&submodule_options, "--max-depth=%d", - opt->max_depth); - if (opt->linenum) - argv_array_push(&submodule_options, "-n"); - if (!opt->pathname) - argv_array_push(&submodule_options, "-h"); - if (!opt->relative) - argv_array_push(&submodule_options, "--full-name"); - if (opt->name_only) - argv_array_push(&submodule_options, "-l"); - if (opt->unmatch_name_only) - argv_array_push(&submodule_options, "-L"); - if (opt->null_following_name) - argv_array_push(&submodule_options, "-z"); - if (opt->count) - argv_array_push(&submodule_options, "-c"); - if (opt->file_break) - argv_array_push(&submodule_options, "--break"); - if (opt->heading) - argv_array_push(&submodule_options, "--heading"); - if (opt->pre_context) - argv_array_pushf(&submodule_options, "--before-context=%d", - opt->pre_context); - if (opt->post_context) - argv_array_pushf(&submodule_options, "--after-context=%d", - opt->post_context); - if (opt->funcname) - argv_array_push(&submodule_options, "-p"); - if (opt->funcbody) - argv_array_push(&submodule_options, "-W"); - if (opt->all_match) - argv_array_push(&submodule_options, "--all-match"); - if (opt->debug) - argv_array_push(&submodule_options, "--debug"); - if (opt->status_only) - argv_array_push(&submodule_options, "-q"); - - switch (pattern_type_arg) { - case GREP_PATTERN_TYPE_BRE: - argv_array_push(&submodule_options, "-G"); - break; - case GREP_PATTERN_TYPE_ERE: - argv_array_push(&submodule_options, "-E"); - break; - case GREP_PATTERN_TYPE_FIXED: - argv_array_push(&submodule_options, "-F"); - break; - case GREP_PATTERN_TYPE_PCRE: - argv_array_push(&submodule_options, "-P"); - break; - case GREP_PATTERN_TYPE_UNSPECIFIED: - break; - default: - die("BUG: Added a new grep pattern type without updating switch statement"); - } - - for (pattern = opt->pattern_list; pattern != NULL; - pattern = pattern->next) { - switch (pattern->token) { - case GREP_PATTERN: - argv_array_pushf(&submodule_options, "-e%s", - pattern->pattern); - break; - case GREP_AND: - case GREP_OPEN_PAREN: - case GREP_CLOSE_PAREN: - case GREP_NOT: - case GREP_OR: - argv_array_push(&submodule_options, pattern->pattern); - break; - /* BODY and HEAD are not used by git-grep */ - case GREP_PATTERN_BODY: - case GREP_PATTERN_HEAD: - break; - } - } - - /* - * Limit number of threads for child process to use. - * This is to prevent potential fork-bomb behavior of git-grep as each - * submodule process has its own thread pool. - */ - argv_array_pushf(&submodule_options, "--threads=%d", - DIV_ROUND_UP(num_threads, 2)); - - /* Add Pathspecs */ - argv_array_push(&submodule_options, "--"); - for (; *argv; argv++) - argv_array_push(&submodule_options, *argv); -} +static int grep_cache(struct grep_opt *opt, struct repository *repo, + const struct pathspec *pathspec, int cached); +static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, + struct tree_desc *tree, struct strbuf *base, int tn_len, + int check_attr, struct repository *repo); -/* - * Launch child process to grep contents of a submodule - */ -static int grep_submodule_launch(struct grep_opt *opt, - const struct grep_source *gs) +static int grep_submodule(struct grep_opt *opt, struct repository *superproject, + const struct pathspec *pathspec, + const struct object_id *oid, + const char *filename, const char *path) { - struct child_process cp = CHILD_PROCESS_INIT; - int status, i; - const char *end_of_base; - const char *name; - struct strbuf child_output = STRBUF_INIT; - - end_of_base = strchr(gs->name, ':'); - if (gs->identifier && end_of_base) - name = end_of_base + 1; - else - name = gs->name; + struct repository submodule; + int hit; - prepare_submodule_repo_env(&cp.env_array); - argv_array_push(&cp.env_array, GIT_DIR_ENVIRONMENT); + if (!is_submodule_active(superproject, path)) + return 0; - if (opt->relative && opt->prefix_length) - argv_array_pushf(&cp.env_array, "%s=%s", - GIT_TOPLEVEL_PREFIX_ENVIRONMENT, - opt->prefix); + if (repo_submodule_init(&submodule, superproject, path)) + return 0; - /* Add super prefix */ - argv_array_pushf(&cp.args, "--super-prefix=%s%s/", - super_prefix ? super_prefix : "", - name); - argv_array_push(&cp.args, "grep"); + repo_read_gitmodules(&submodule); /* - * Add basename of parent project - * When performing grep on a tree object the filename is prefixed - * with the object's name: 'tree-name:filename'. In order to - * provide uniformity of output we want to pass the name of the - * parent project's object name to the submodule so the submodule can - * prefix its output with the parent's name and not its own OID. + * NEEDSWORK: This adds the submodule's object directory to the list of + * alternates for the single in-memory object store. This has some bad + * consequences for memory (processed objects will never be freed) and + * performance (this increases the number of pack files git has to pay + * attention to, to the sum of the number of pack files in all the + * repositories processed so far). This can be removed once the object + * store is no longer global and instead is a member of the repository + * object. */ - if (gs->identifier && end_of_base) - argv_array_pushf(&cp.args, "--parent-basename=%.*s", - (int) (end_of_base - gs->name), - gs->name); + add_to_alternates_memory(submodule.objectdir); - /* Add options */ - for (i = 0; i < submodule_options.argc; i++) { - /* - * If there is a tree identifier for the submodule, add the - * rev after adding the submodule options but before the - * pathspecs. To do this we listen for the '--' and insert the - * oid before pushing the '--' onto the child process argv - * array. - */ - if (gs->identifier && - !strcmp("--", submodule_options.argv[i])) { - argv_array_push(&cp.args, oid_to_hex(gs->identifier)); - } + if (oid) { + struct object *object; + struct tree_desc tree; + void *data; + unsigned long size; + struct strbuf base = STRBUF_INIT; - argv_array_push(&cp.args, submodule_options.argv[i]); - } + object = parse_object_or_die(oid, oid_to_hex(oid)); - cp.git_cmd = 1; - cp.dir = gs->path; + grep_read_lock(); + data = read_object_with_reference(object->oid.hash, tree_type, + &size, NULL); + grep_read_unlock(); - /* - * Capture output to output buffer and check the return code from the - * child process. A '0' indicates a hit, a '1' indicates no hit and - * anything else is an error. - */ - status = capture_command(&cp, &child_output, 0); - if (status && (status != 1)) { - /* flush the buffer */ - write_or_die(1, child_output.buf, child_output.len); - die("process for submodule '%s' failed with exit code: %d", - gs->name, status); - } + if (!data) + die(_("unable to read tree (%s)"), oid_to_hex(&object->oid)); - opt->output(opt, child_output.buf, child_output.len); - strbuf_release(&child_output); - /* invert the return code to make a hit equal to 1 */ - return !status; -} + strbuf_addstr(&base, filename); + strbuf_addch(&base, '/'); -/* - * Prep grep structures for a submodule grep - * oid: the oid of the submodule or NULL if using the working tree - * filename: name of the submodule including tree name of parent - * path: location of the submodule - */ -static int grep_submodule(struct grep_opt *opt, const struct object_id *oid, - const char *filename, const char *path) -{ - if (!is_submodule_active(the_repository, path)) - return 0; - if (!is_submodule_populated_gently(path, NULL)) { - /* - * If searching history, check for the presence of the - * submodule's gitdir before skipping the submodule. - */ - if (oid) { - const struct submodule *sub = - submodule_from_path(null_sha1, path); - if (sub) - path = git_path("modules/%s", sub->name); - - if (!(is_directory(path) && is_git_directory(path))) - return 0; - } else { - return 0; - } + init_tree_desc(&tree, data, size); + hit = grep_tree(opt, pathspec, &tree, &base, base.len, + object->type == OBJ_COMMIT, &submodule); + strbuf_release(&base); + free(data); + } else { + hit = grep_cache(opt, &submodule, pathspec, 1); } -#ifndef NO_PTHREADS - if (num_threads) { - add_work(opt, GREP_SOURCE_SUBMODULE, filename, path, oid); - return 0; - } else -#endif - { - struct grep_source gs; - int hit; - - grep_source_init(&gs, GREP_SOURCE_SUBMODULE, - filename, path, oid); - hit = grep_submodule_launch(opt, &gs); - - grep_source_clear(&gs); - return hit; - } + repo_clear(&submodule); + return hit; } -static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, - int cached) +static int grep_cache(struct grep_opt *opt, struct repository *repo, + const struct pathspec *pathspec, int cached) { int hit = 0; int nr; struct strbuf name = STRBUF_INIT; int name_base_len = 0; - if (super_prefix) { - name_base_len = strlen(super_prefix); - strbuf_addstr(&name, super_prefix); + if (repo->submodule_prefix) { + name_base_len = strlen(repo->submodule_prefix); + strbuf_addstr(&name, repo->submodule_prefix); } - read_cache(); + repo_read_index(repo); - for (nr = 0; nr < active_nr; nr++) { - const struct cache_entry *ce = active_cache[nr]; + for (nr = 0; nr < repo->index->cache_nr; nr++) { + const struct cache_entry *ce = repo->index->cache[nr]; strbuf_setlen(&name, name_base_len); strbuf_addstr(&name, ce->name); @@ -715,14 +498,14 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, ce_skip_worktree(ce)) { if (ce_stage(ce) || ce_intent_to_add(ce)) continue; - hit |= grep_oid(opt, &ce->oid, ce->name, - 0, ce->name); + hit |= grep_oid(opt, &ce->oid, name.buf, + 0, name.buf); } else { - hit |= grep_file(opt, ce->name); + hit |= grep_file(opt, name.buf); } } else if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && submodule_path_match(pathspec, name.buf, NULL)) { - hit |= grep_submodule(opt, NULL, ce->name, ce->name); + hit |= grep_submodule(opt, repo, pathspec, NULL, ce->name, ce->name); } else { continue; } @@ -730,8 +513,8 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, if (ce_stage(ce)) { do { nr++; - } while (nr < active_nr && - !strcmp(ce->name, active_cache[nr]->name)); + } while (nr < repo->index->cache_nr && + !strcmp(ce->name, repo->index->cache[nr]->name)); nr--; /* compensate for loop control */ } if (hit && opt->status_only) @@ -744,7 +527,7 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, struct tree_desc *tree, struct strbuf *base, int tn_len, - int check_attr) + int check_attr, struct repository *repo) { int hit = 0; enum interesting match = entry_not_interesting; @@ -752,8 +535,8 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, int old_baselen = base->len; struct strbuf name = STRBUF_INIT; int name_base_len = 0; - if (super_prefix) { - strbuf_addstr(&name, super_prefix); + if (repo->submodule_prefix) { + strbuf_addstr(&name, repo->submodule_prefix); name_base_len = name.len; } @@ -791,11 +574,11 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, strbuf_addch(base, '/'); init_tree_desc(&sub, data, size); hit |= grep_tree(opt, pathspec, &sub, base, tn_len, - check_attr); + check_attr, repo); free(data); } else if (recurse_submodules && S_ISGITLINK(entry.mode)) { - hit |= grep_submodule(opt, entry.oid, base->buf, - base->buf + tn_len); + hit |= grep_submodule(opt, repo, pathspec, entry.oid, + base->buf, base->buf + tn_len); } strbuf_setlen(base, old_baselen); @@ -809,7 +592,8 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, } static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, - struct object *obj, const char *name, const char *path) + struct object *obj, const char *name, const char *path, + struct repository *repo) { if (obj->type == OBJ_BLOB) return grep_oid(opt, &obj->oid, name, 0, path); @@ -828,10 +612,6 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, if (!data) die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid)); - /* Use parent's name as base when recursing submodules */ - if (recurse_submodules && parent_basename) - name = parent_basename; - len = name ? strlen(name) : 0; strbuf_init(&base, PATH_MAX + len + 1); if (len) { @@ -840,7 +620,7 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, } init_tree_desc(&tree, data, size); hit = grep_tree(opt, pathspec, &tree, &base, base.len, - obj->type == OBJ_COMMIT); + obj->type == OBJ_COMMIT, repo); strbuf_release(&base); free(data); return hit; @@ -849,6 +629,7 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, } static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, + struct repository *repo, const struct object_array *list) { unsigned int i; @@ -864,7 +645,8 @@ static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, submodule_free(); gitmodules_config_sha1(real_obj->oid.hash); } - if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path)) { + if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path, + repo)) { hit = 1; if (opt->status_only) break; @@ -1005,9 +787,6 @@ int cmd_grep(int argc, const char **argv, const char *prefix) N_("ignore files specified via '.gitignore'"), 1), OPT_BOOL(0, "recurse-submodules", &recurse_submodules, N_("recursively search in each submodule")), - OPT_STRING(0, "parent-basename", &parent_basename, - N_("basename"), - N_("prepend parent project's basename to output")), OPT_GROUP(""), OPT_BOOL('v', "invert-match", &opt.invert, N_("show non-matching lines")), @@ -1112,7 +891,6 @@ int cmd_grep(int argc, const char **argv, const char *prefix) init_grep_defaults(); git_config(grep_cmd_config, NULL); grep_init(&opt, prefix); - super_prefix = get_super_prefix(); /* * If there is no -- then the paths must exist in the working @@ -1272,9 +1050,6 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (recurse_submodules) { gitmodules_config(); - compile_submodule_options(&opt, argv + i, cached, untracked, - opt_exclude, use_index, - pattern_type_arg); } if (show_in_pager && (cached || list.nr)) @@ -1318,11 +1093,12 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (!cached) setup_work_tree(); - hit = grep_cache(&opt, &pathspec, cached); + hit = grep_cache(&opt, the_repository, &pathspec, cached); } else { if (cached) die(_("both --cached and trees are given.")); - hit = grep_objects(&opt, &pathspec, &list); + + hit = grep_objects(&opt, &pathspec, the_repository, &list); } if (num_threads) diff --git a/cache.h b/cache.h index d59f767e2e..c221434b23 100644 --- a/cache.h +++ b/cache.h @@ -417,7 +417,6 @@ static inline enum object_type object_type(unsigned int mode) #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE" #define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX" #define GIT_SUPER_PREFIX_ENVIRONMENT "GIT_INTERNAL_SUPER_PREFIX" -#define GIT_TOPLEVEL_PREFIX_ENVIRONMENT "GIT_INTERNAL_TOPLEVEL_PREFIX" #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" diff --git a/git.c b/git.c index 489aab4d83..9dd9aead6a 100644 --- a/git.c +++ b/git.c @@ -392,7 +392,7 @@ static struct cmd_struct commands[] = { { "fsck-objects", cmd_fsck, RUN_SETUP }, { "gc", cmd_gc, RUN_SETUP }, { "get-tar-commit-id", cmd_get_tar_commit_id }, - { "grep", cmd_grep, RUN_SETUP_GENTLY | SUPPORT_SUPER_PREFIX }, + { "grep", cmd_grep, RUN_SETUP_GENTLY }, { "hash-object", cmd_hash_object }, { "help", cmd_help }, { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY }, diff --git a/grep.c b/grep.c index 2efec0e182..45acd333b0 100644 --- a/grep.c +++ b/grep.c @@ -1927,16 +1927,6 @@ void grep_source_init(struct grep_source *gs, enum grep_source_type type, case GREP_SOURCE_FILE: gs->identifier = xstrdup(identifier); break; - case GREP_SOURCE_SUBMODULE: - if (!identifier) { - gs->identifier = NULL; - break; - } - /* - * FALL THROUGH - * If the identifier is non-NULL (in the submodule case) it - * will be a SHA1 that needs to be copied. - */ case GREP_SOURCE_OID: gs->identifier = oiddup(identifier); break; @@ -1959,7 +1949,6 @@ void grep_source_clear_data(struct grep_source *gs) switch (gs->type) { case GREP_SOURCE_FILE: case GREP_SOURCE_OID: - case GREP_SOURCE_SUBMODULE: FREE_AND_NULL(gs->buf); gs->size = 0; break; @@ -2030,8 +2019,6 @@ static int grep_source_load(struct grep_source *gs) return grep_source_load_oid(gs); case GREP_SOURCE_BUF: return gs->buf ? 0 : -1; - case GREP_SOURCE_SUBMODULE: - break; } die("BUG: invalid grep_source type to load"); } diff --git a/grep.h b/grep.h index 0c091e5104..52aecfab6e 100644 --- a/grep.h +++ b/grep.h @@ -193,7 +193,6 @@ struct grep_source { GREP_SOURCE_OID, GREP_SOURCE_FILE, GREP_SOURCE_BUF, - GREP_SOURCE_SUBMODULE, } type; void *identifier; diff --git a/setup.c b/setup.c index 860507e1fd..23950173fc 100644 --- a/setup.c +++ b/setup.c @@ -1027,7 +1027,7 @@ const char *setup_git_directory_gently(int *nongit_ok) { static struct strbuf cwd = STRBUF_INIT; struct strbuf dir = STRBUF_INIT, gitdir = STRBUF_INIT; - const char *prefix, *env_prefix; + const char *prefix; /* * We may have read an incomplete configuration before @@ -1085,16 +1085,6 @@ const char *setup_git_directory_gently(int *nongit_ok) die("BUG: unhandled setup_git_directory_1() result"); } - /* - * NEEDSWORK: This was a hack in order to get ls-files and grep to have - * properly formated output when recursing submodules. Once ls-files - * and grep have been changed to perform this recursing in-process this - * needs to be removed. - */ - env_prefix = getenv(GIT_TOPLEVEL_PREFIX_ENVIRONMENT); - if (env_prefix) - prefix = env_prefix; - if (prefix) setenv(GIT_PREFIX_ENVIRONMENT, prefix, 1); else -- cgit v1.2.3