From 4002ec3dcf0f89db46fbdf56549218c573a9c0f2 Mon Sep 17 00:00:00 2001 From: Ævar Arnfjörð Bjarmason Date: Tue, 20 Dec 2022 13:39:56 +0100 Subject: read-tree: add "--super-prefix" option, eliminate global MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The "--super-prefix" option to "git" was initially added in [1] for use with "ls-files"[2], and shortly thereafter "submodule--helper"[3] and "grep"[4]. It wasn't until [5] that "read-tree" made use of it. At the time [5] made sense, but since then we've made "ls-files" recurse in-process in [6], "grep" in [7], and finally "submodule--helper" in the preceding commits. Let's also remove it from "read-tree", which allows us to remove the option to "git" itself. We can do this because the only remaining user of it is the submodule API, which will now invoke "read-tree" with its new "--super-prefix" option. It will only do so when the "submodule_move_head()" function is called. That "submodule_move_head()" function was then only invoked by "read-tree" itself, but now rather than setting an environment variable to pass "--super-prefix" between cmd_read_tree() we: - Set a new "super_prefix" in "struct unpack_trees_options". The "super_prefixed()" function in "unpack-trees.c" added in [5] will now use this, rather than get_super_prefix() looking up the environment variable we set earlier in the same process. - Add the same field to the "struct checkout", which is only needed to ferry the "super_prefix" in the "struct unpack_trees_options" all the way down to the "entry.c" callers of "submodule_move_head()". Those calls which used the super prefix all originated in "cmd_read_tree()". The only other caller is the "unlink_entry()" caller in "builtin/checkout.c", which now passes a "NULL". 1. 74866d75793 (git: make super-prefix option, 2016-10-07) 2. e77aa336f11 (ls-files: optionally recurse into submodules, 2016-10-07) 3. 89c86265576 (submodule helper: support super prefix, 2016-12-08) 4. 0281e487fd9 (grep: optionally recurse into submodules, 2016-12-16) 5. 3d415425c7b (unpack-trees: support super-prefix option, 2017-01-17) 6. 188dce131fa (ls-files: use repository object, 2017-06-22) 7. f9ee2fcdfa0 (grep: recurse in-process using 'struct repository', 2017-08-02) Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- entry.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'entry.c') diff --git a/entry.c b/entry.c index 616e4f073c..971ab26871 100644 --- a/entry.c +++ b/entry.c @@ -383,7 +383,7 @@ static int write_entry(struct cache_entry *ce, char *path, struct conv_attrs *ca return error("cannot create submodule directory %s", path); sub = submodule_from_ce(ce); if (sub) - return submodule_move_head(ce->name, + return submodule_move_head(ce->name, state->super_prefix, NULL, oid_to_hex(&ce->oid), state->force ? SUBMODULE_MOVE_HEAD_FORCE : 0); break; @@ -476,7 +476,7 @@ int checkout_entry_ca(struct cache_entry *ce, struct conv_attrs *ca, * no pathname to return. */ BUG("Can't remove entry to a path"); - unlink_entry(ce); + unlink_entry(ce, state->super_prefix); return 0; } @@ -510,10 +510,10 @@ int checkout_entry_ca(struct cache_entry *ce, struct conv_attrs *ca, if (!(st.st_mode & S_IFDIR)) unlink_or_warn(ce->name); - return submodule_move_head(ce->name, + return submodule_move_head(ce->name, state->super_prefix, NULL, oid_to_hex(&ce->oid), 0); } else - return submodule_move_head(ce->name, + return submodule_move_head(ce->name, state->super_prefix, "HEAD", oid_to_hex(&ce->oid), state->force ? SUBMODULE_MOVE_HEAD_FORCE : 0); } @@ -560,12 +560,12 @@ int checkout_entry_ca(struct cache_entry *ce, struct conv_attrs *ca, return write_entry(ce, path.buf, ca, state, 0, nr_checkouts); } -void unlink_entry(const struct cache_entry *ce) +void unlink_entry(const struct cache_entry *ce, const char *super_prefix) { const struct submodule *sub = submodule_from_ce(ce); if (sub) { /* state.force is set at the caller. */ - submodule_move_head(ce->name, "HEAD", NULL, + submodule_move_head(ce->name, super_prefix, "HEAD", NULL, SUBMODULE_MOVE_HEAD_FORCE); } if (check_leading_path(ce->name, ce_namelen(ce), 1) >= 0) -- cgit v1.3