From 49e61479be913f67e66bb3fdf8de9475c41b58bd Mon Sep 17 00:00:00 2001 From: "brian m. carlson" Date: Sun, 15 Oct 2017 22:07:09 +0000 Subject: [PATCH] refs: convert resolve_ref_unsafe to struct object_id Convert resolve_ref_unsafe to take a pointer to struct object_id by converting one remaining caller to use struct object_id, removing the temporary NULL pointer check in expand_ref, converting the declaration and definition, and applying the following semantic patch: @@ expression E1, E2, E3, E4; @@ - resolve_ref_unsafe(E1, E2, E3.hash, E4) + resolve_ref_unsafe(E1, E2, &E3, E4) @@ expression E1, E2, E3, E4; @@ - resolve_ref_unsafe(E1, E2, E3->hash, E4) + resolve_ref_unsafe(E1, E2, E3, E4) Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano --- blame.c | 4 ++-- builtin/fsck.c | 2 +- refs.c | 29 ++++++++++++++--------------- refs.h | 14 +++++++------- refs/files-backend.c | 8 ++++---- sequencer.c | 2 +- t/helper/test-ref-store.c | 6 +++--- transport-helper.c | 7 +++---- worktree.c | 2 +- 9 files changed, 36 insertions(+), 38 deletions(-) diff --git a/blame.c b/blame.c index f575e9cbf4..c3060de2f8 100644 --- a/blame.c +++ b/blame.c @@ -166,7 +166,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, commit->date = now; parent_tail = &commit->parents; - if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL)) + if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL)) die("no such ref: HEAD"); parent_tail = append_parent(parent_tail, &head_oid); @@ -1689,7 +1689,7 @@ static struct commit *dwim_reverse_initial(struct rev_info *revs, return NULL; /* Do we have HEAD? */ - if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL)) + if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL)) return NULL; head_commit = lookup_commit_reference_gently(&head_oid, 1); if (!head_commit) diff --git a/builtin/fsck.c b/builtin/fsck.c index 56afe405b8..5f91116d73 100644 --- a/builtin/fsck.c +++ b/builtin/fsck.c @@ -555,7 +555,7 @@ static int fsck_head_link(void) if (verbose) fprintf(stderr, "Checking HEAD link\n"); - head_points_at = resolve_ref_unsafe("HEAD", 0, head_oid.hash, NULL); + head_points_at = resolve_ref_unsafe("HEAD", 0, &head_oid, NULL); if (!head_points_at) { errors_found |= ERROR_REFS; return error("Invalid HEAD"); diff --git a/refs.c b/refs.c index 90219d6e13..72c45a513b 100644 --- a/refs.c +++ b/refs.c @@ -199,7 +199,7 @@ char *refs_resolve_refdup(struct ref_store *refs, const char *result; result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, - oid->hash, flags); + oid, flags); return xstrdup_or_null(result); } @@ -221,7 +221,7 @@ struct ref_filter { int refs_read_ref_full(struct ref_store *refs, const char *refname, int resolve_flags, struct object_id *oid, int *flags) { - if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid->hash, flags)) + if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid, flags)) return 0; return -1; } @@ -480,8 +480,7 @@ int expand_ref(const char *str, int len, struct object_id *oid, char **ref) strbuf_reset(&fullref); strbuf_addf(&fullref, *p, len, str); r = resolve_ref_unsafe(fullref.buf, RESOLVE_REF_READING, - this_result ? this_result->hash : NULL, - &flag); + this_result, &flag); if (r) { if (!refs_found++) *ref = xstrdup(r); @@ -512,7 +511,7 @@ int dwim_log(const char *str, int len, struct object_id *oid, char **log) strbuf_reset(&path); strbuf_addf(&path, *p, len, str); ref = resolve_ref_unsafe(path.buf, RESOLVE_REF_READING, - hash.hash, NULL); + &hash, NULL); if (!ref) continue; if (reflog_exists(path.buf)) @@ -1393,15 +1392,15 @@ int refs_read_raw_ref(struct ref_store *ref_store, const char *refs_resolve_ref_unsafe(struct ref_store *refs, const char *refname, int resolve_flags, - unsigned char *sha1, int *flags) + struct object_id *oid, int *flags) { static struct strbuf sb_refname = STRBUF_INIT; struct object_id unused_oid; int unused_flags; int symref_count; - if (!sha1) - sha1 = unused_oid.hash; + if (!oid) + oid = &unused_oid; if (!flags) flags = &unused_flags; @@ -1429,7 +1428,7 @@ const char *refs_resolve_ref_unsafe(struct ref_store *refs, unsigned int read_flags = 0; if (refs_read_raw_ref(refs, refname, - sha1, &sb_refname, &read_flags)) { + oid->hash, &sb_refname, &read_flags)) { *flags |= read_flags; /* In reading mode, refs must eventually resolve */ @@ -1446,7 +1445,7 @@ const char *refs_resolve_ref_unsafe(struct ref_store *refs, errno != ENOTDIR) return NULL; - hashclr(sha1); + oidclr(oid); if (*flags & REF_BAD_NAME) *flags |= REF_ISBROKEN; return refname; @@ -1456,7 +1455,7 @@ const char *refs_resolve_ref_unsafe(struct ref_store *refs, if (!(read_flags & REF_ISSYMREF)) { if (*flags & REF_BAD_NAME) { - hashclr(sha1); + oidclr(oid); *flags |= REF_ISBROKEN; } return refname; @@ -1464,7 +1463,7 @@ const char *refs_resolve_ref_unsafe(struct ref_store *refs, refname = sb_refname.buf; if (resolve_flags & RESOLVE_REF_NO_RECURSE) { - hashclr(sha1); + oidclr(oid); return refname; } if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { @@ -1491,10 +1490,10 @@ int refs_init_db(struct strbuf *err) } const char *resolve_ref_unsafe(const char *refname, int resolve_flags, - unsigned char *sha1, int *flags) + struct object_id *oid, int *flags) { return refs_resolve_ref_unsafe(get_main_ref_store(), refname, - resolve_flags, sha1, flags); + resolve_flags, oid, flags); } int resolve_gitlink_ref(const char *submodule, const char *refname, @@ -1508,7 +1507,7 @@ int resolve_gitlink_ref(const char *submodule, const char *refname, if (!refs) return -1; - if (!refs_resolve_ref_unsafe(refs, refname, 0, oid->hash, &flags) || + if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || is_null_oid(oid)) return -1; return 0; diff --git a/refs.h b/refs.h index ee07a457af..15fd419c7d 100644 --- a/refs.h +++ b/refs.h @@ -14,22 +14,22 @@ struct worktree; * at the resolved object name. The return value, if not NULL, is a * pointer into either a static buffer or the input ref. * - * If sha1 is non-NULL, store the referred-to object's name in it. + * If oid is non-NULL, store the referred-to object's name in it. * * If the reference cannot be resolved to an object, the behavior * depends on the RESOLVE_REF_READING flag: * * - If RESOLVE_REF_READING is set, return NULL. * - * - If RESOLVE_REF_READING is not set, clear sha1 and return the name of + * - If RESOLVE_REF_READING is not set, clear oid and return the name of * the last reference name in the chain, which will either be a non-symbolic * reference or an undefined reference. If this is a prelude to * "writing" to the ref, the return value is the name of the ref * that will actually be created or changed. * * If the RESOLVE_REF_NO_RECURSE flag is passed, only resolves one - * level of symbolic reference. The value stored in sha1 for a symbolic - * reference will always be null_sha1 in this case, and the return + * level of symbolic reference. The value stored in oid for a symbolic + * reference will always be null_oid in this case, and the return * value is the reference that the symref refers to directly. * * If flags is non-NULL, set the value that it points to the @@ -46,7 +46,7 @@ struct worktree; * * RESOLVE_REF_ALLOW_BAD_NAME allows resolving refs even when their * name is invalid according to git-check-ref-format(1). If the name - * is bad then the value stored in sha1 will be null_sha1 and the two + * is bad then the value stored in oid will be null_oid and the two * flags REF_ISBROKEN and REF_BAD_NAME will be set. * * Even with RESOLVE_REF_ALLOW_BAD_NAME, names that escape the refs/ @@ -62,10 +62,10 @@ struct worktree; const char *refs_resolve_ref_unsafe(struct ref_store *refs, const char *refname, int resolve_flags, - unsigned char *sha1, + struct object_id *oid, int *flags); const char *resolve_ref_unsafe(const char *refname, int resolve_flags, - unsigned char *sha1, int *flags); + struct object_id *oid, int *flags); char *refs_resolve_refdup(struct ref_store *refs, const char *refname, int resolve_flags, diff --git a/refs/files-backend.c b/refs/files-backend.c index 3ff5dc5b1c..8bf2ef8a77 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -189,7 +189,7 @@ static void loose_fill_ref_dir(struct ref_store *ref_store, if (!refs_resolve_ref_unsafe(&refs->base, refname.buf, RESOLVE_REF_READING, - oid.hash, &flag)) { + &oid, &flag)) { oidclr(&oid); flag |= REF_ISBROKEN; } else if (is_null_oid(&oid)) { @@ -855,7 +855,7 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs, files_ref_path(refs, &ref_file, refname); resolved = !!refs_resolve_ref_unsafe(&refs->base, refname, resolve_flags, - lock->old_oid.hash, type); + &lock->old_oid, type); if (!resolved && errno == EISDIR) { /* * we are trying to lock foo but we used to @@ -874,7 +874,7 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs, } resolved = !!refs_resolve_ref_unsafe(&refs->base, refname, resolve_flags, - lock->old_oid.hash, type); + &lock->old_oid, type); } if (!resolved) { last_errno = errno; @@ -1251,7 +1251,7 @@ static int files_copy_or_rename_ref(struct ref_store *ref_store, if (!refs_resolve_ref_unsafe(&refs->base, oldrefname, RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE, - orig_oid.hash, &flag)) { + &orig_oid, &flag)) { ret = error("refname %s not found", oldrefname); goto out; } diff --git a/sequencer.c b/sequencer.c index 3031e7364d..0d20ac760a 100644 --- a/sequencer.c +++ b/sequencer.c @@ -489,7 +489,7 @@ static int is_index_unchanged(void) struct object_id head_oid; struct commit *head_commit; - if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL)) + if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL)) return error(_("could not resolve HEAD commit\n")); head_commit = lookup_commit(&head_oid); diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c index cea3285ada..d846c88ed2 100644 --- a/t/helper/test-ref-store.c +++ b/t/helper/test-ref-store.c @@ -127,15 +127,15 @@ static int cmd_for_each_ref(struct ref_store *refs, const char **argv) static int cmd_resolve_ref(struct ref_store *refs, const char **argv) { - unsigned char sha1[20]; + struct object_id oid; const char *refname = notnull(*argv++, "refname"); int resolve_flags = arg_flags(*argv++, "resolve-flags"); int flags; const char *ref; ref = refs_resolve_ref_unsafe(refs, refname, resolve_flags, - sha1, &flags); - printf("%s %s 0x%x\n", sha1_to_hex(sha1), ref, flags); + &oid, &flags); + printf("%s %s 0x%x\n", oid_to_hex(&oid), ref, flags); return ref ? 0 : 1; } diff --git a/transport-helper.c b/transport-helper.c index 640ce5a492..bf05a2dcf1 100644 --- a/transport-helper.c +++ b/transport-helper.c @@ -942,10 +942,9 @@ static int push_refs_with_export(struct transport *transport, int flag; /* Follow symbolic refs (mainly for HEAD). */ - name = resolve_ref_unsafe( - ref->peer_ref->name, - RESOLVE_REF_READING, - oid.hash, &flag); + name = resolve_ref_unsafe(ref->peer_ref->name, + RESOLVE_REF_READING, + &oid, &flag); if (!name || !(flag & REF_ISSYMREF)) name = ref->peer_ref->name; diff --git a/worktree.c b/worktree.c index cb35db03fa..2799abd555 100644 --- a/worktree.c +++ b/worktree.c @@ -31,7 +31,7 @@ static void add_head_info(struct worktree *wt) target = refs_resolve_ref_unsafe(get_worktree_ref_store(wt), "HEAD", 0, - wt->head_oid.hash, &flags); + &wt->head_oid, &flags); if (!target) return; -- 2.43.2