diff options
author | Junio C Hamano <gitster@pobox.com> | 2020-10-06 00:01:55 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2020-10-06 00:01:55 +0300 |
commit | 5f8c70a14836c730c78533e35401db8269a96aa2 (patch) | |
tree | 05f23b5e5601d70987193ec29d8f79c8de935ec7 /builtin/log.c | |
parent | 7da656f1e083b065400c4ab92405c6332481eb7a (diff) | |
parent | 7efba5fa39fa1608fccea51a849b36b0f85825bb (diff) |
Merge branch 'jk/format-auto-base-when-able'
"git format-patch" learns to take "whenAble" as a possible value
for the format.useAutoBase configuration variable to become no-op
when the automatically computed base does not make sense.
* jk/format-auto-base-when-able:
format-patch: teach format.useAutoBase "whenAble" option
Diffstat (limited to 'builtin/log.c')
-rw-r--r-- | builtin/log.c | 130 |
1 files changed, 105 insertions, 25 deletions
diff --git a/builtin/log.c b/builtin/log.c index 7f27e9eca1..0a7ed4bef9 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -805,9 +805,15 @@ enum cover_from_description { COVER_FROM_AUTO }; +enum auto_base_setting { + AUTO_BASE_NEVER, + AUTO_BASE_ALWAYS, + AUTO_BASE_WHEN_ABLE +}; + static enum thread_level thread; static int do_signoff; -static int base_auto; +static enum auto_base_setting auto_base; static char *from; static const char *signature = git_version_string; static const char *signature_file; @@ -906,7 +912,11 @@ static int git_format_config(const char *var, const char *value, void *cb) if (!strcmp(var, "format.outputdirectory")) return git_config_string(&config_output_directory, var, value); if (!strcmp(var, "format.useautobase")) { - base_auto = git_config_bool(var, value); + if (value && !strcasecmp(value, "whenAble")) { + auto_base = AUTO_BASE_WHEN_ABLE; + return 0; + } + auto_base = git_config_bool(var, value) ? AUTO_BASE_ALWAYS : AUTO_BASE_NEVER; return 0; } if (!strcmp(var, "format.from")) { @@ -1425,6 +1435,23 @@ static int from_callback(const struct option *opt, const char *arg, int unset) return 0; } +static int base_callback(const struct option *opt, const char *arg, int unset) +{ + const char **base_commit = opt->value; + + if (unset) { + auto_base = AUTO_BASE_NEVER; + *base_commit = NULL; + } else if (!strcmp(arg, "auto")) { + auto_base = AUTO_BASE_ALWAYS; + *base_commit = NULL; + } else { + auto_base = AUTO_BASE_NEVER; + *base_commit = arg; + } + return 0; +} + struct base_tree_info { struct object_id base_commit; int nr_patch_id, alloc_patch_id; @@ -1437,13 +1464,36 @@ static struct commit *get_base_commit(const char *base_commit, { struct commit *base = NULL; struct commit **rev; - int i = 0, rev_nr = 0; + int i = 0, rev_nr = 0, auto_select, die_on_failure; - if (base_commit && strcmp(base_commit, "auto")) { + switch (auto_base) { + case AUTO_BASE_NEVER: + if (base_commit) { + auto_select = 0; + die_on_failure = 1; + } else { + /* no base information is requested */ + return NULL; + } + break; + case AUTO_BASE_ALWAYS: + case AUTO_BASE_WHEN_ABLE: + if (base_commit) { + BUG("requested automatic base selection but a commit was provided"); + } else { + auto_select = 1; + die_on_failure = auto_base == AUTO_BASE_ALWAYS; + } + break; + default: + BUG("unexpected automatic base selection method"); + } + + if (!auto_select) { base = lookup_commit_reference_by_name(base_commit); if (!base) die(_("unknown commit %s"), base_commit); - } else if ((base_commit && !strcmp(base_commit, "auto"))) { + } else { struct branch *curr_branch = branch_get(NULL); const char *upstream = branch_get_upstream(curr_branch, NULL); if (upstream) { @@ -1451,19 +1501,32 @@ static struct commit *get_base_commit(const char *base_commit, struct commit *commit; struct object_id oid; - if (get_oid(upstream, &oid)) - die(_("failed to resolve '%s' as a valid ref"), upstream); + if (get_oid(upstream, &oid)) { + if (die_on_failure) + die(_("failed to resolve '%s' as a valid ref"), upstream); + else + return NULL; + } commit = lookup_commit_or_die(&oid, "upstream base"); base_list = get_merge_bases_many(commit, total, list); /* There should be one and only one merge base. */ - if (!base_list || base_list->next) - die(_("could not find exact merge base")); + if (!base_list || base_list->next) { + if (die_on_failure) { + die(_("could not find exact merge base")); + } else { + free_commit_list(base_list); + return NULL; + } + } base = base_list->item; free_commit_list(base_list); } else { - die(_("failed to get upstream, if you want to record base commit automatically,\n" - "please use git branch --set-upstream-to to track a remote branch.\n" - "Or you could specify base commit by --base=<base-commit-id> manually")); + if (die_on_failure) + die(_("failed to get upstream, if you want to record base commit automatically,\n" + "please use git branch --set-upstream-to to track a remote branch.\n" + "Or you could specify base commit by --base=<base-commit-id> manually")); + else + return NULL; } } @@ -1480,8 +1543,14 @@ static struct commit *get_base_commit(const char *base_commit, for (i = 0; i < rev_nr / 2; i++) { struct commit_list *merge_base; merge_base = get_merge_bases(rev[2 * i], rev[2 * i + 1]); - if (!merge_base || merge_base->next) - die(_("failed to find exact merge base")); + if (!merge_base || merge_base->next) { + if (die_on_failure) { + die(_("failed to find exact merge base")); + } else { + free(rev); + return NULL; + } + } rev[i] = merge_base->item; } @@ -1491,12 +1560,24 @@ static struct commit *get_base_commit(const char *base_commit, rev_nr = DIV_ROUND_UP(rev_nr, 2); } - if (!in_merge_bases(base, rev[0])) - die(_("base commit should be the ancestor of revision list")); + if (!in_merge_bases(base, rev[0])) { + if (die_on_failure) { + die(_("base commit should be the ancestor of revision list")); + } else { + free(rev); + return NULL; + } + } for (i = 0; i < total; i++) { - if (base == list[i]) - die(_("base commit shouldn't be in revision list")); + if (base == list[i]) { + if (die_on_failure) { + die(_("base commit shouldn't be in revision list")); + } else { + free(rev); + return NULL; + } + } } free(rev); @@ -1639,6 +1720,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) char *branch_name = NULL; char *base_commit = NULL; struct base_tree_info bases; + struct commit *base; int show_progress = 0; struct progress *progress = NULL; struct oid_array idiff_prev = OID_ARRAY_INIT; @@ -1715,8 +1797,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) PARSE_OPT_OPTARG, thread_callback), OPT_STRING(0, "signature", &signature, N_("signature"), N_("add a signature")), - OPT_STRING(0, "base", &base_commit, N_("base-commit"), - N_("add prerequisite tree info to the patch series")), + OPT_CALLBACK_F(0, "base", &base_commit, N_("base-commit"), + N_("add prerequisite tree info to the patch series"), + 0, base_callback), OPT_FILENAME(0, "signature-file", &signature_file, N_("add a signature from a file")), OPT__QUIET(&quiet, N_("don't print the patch filenames")), @@ -1753,9 +1836,6 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) s_r_opt.def = "HEAD"; s_r_opt.revarg_opt = REVARG_COMMITTISH; - if (base_auto) - base_commit = "auto"; - if (default_attach) { rev.mime_boundary = default_attach; rev.no_inline = 1; @@ -2019,8 +2099,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) } memset(&bases, 0, sizeof(bases)); - if (base_commit) { - struct commit *base = get_base_commit(base_commit, list, nr); + base = get_base_commit(base_commit, list, nr); + if (base) { reset_revision_walk(); clear_object_flags(UNINTERESTING); prepare_bases(&bases, base, list, nr); |