diff options
Diffstat (limited to 'third_party/git/advice.c')
| -rw-r--r-- | third_party/git/advice.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/third_party/git/advice.c b/third_party/git/advice.c new file mode 100644 index 0000000000..3ee0ee2d8f --- /dev/null +++ b/third_party/git/advice.c @@ -0,0 +1,220 @@ +#include "cache.h" +#include "config.h" +#include "color.h" +#include "help.h" + +int advice_fetch_show_forced_updates = 1; +int advice_push_update_rejected = 1; +int advice_push_non_ff_current = 1; +int advice_push_non_ff_matching = 1; +int advice_push_already_exists = 1; +int advice_push_fetch_first = 1; +int advice_push_needs_force = 1; +int advice_push_unqualified_ref_name = 1; +int advice_status_hints = 1; +int advice_status_u_option = 1; +int advice_status_ahead_behind_warning = 1; +int advice_commit_before_merge = 1; +int advice_reset_quiet_warning = 1; +int advice_resolve_conflict = 1; +int advice_sequencer_in_use = 1; +int advice_implicit_identity = 1; +int advice_detached_head = 1; +int advice_set_upstream_failure = 1; +int advice_object_name_warning = 1; +int advice_amworkdir = 1; +int advice_rm_hints = 1; +int advice_add_embedded_repo = 1; +int advice_ignored_hook = 1; +int advice_waiting_for_editor = 1; +int advice_graft_file_deprecated = 1; +int advice_checkout_ambiguous_remote_branch_name = 1; +int advice_nested_tag = 1; + +static int advice_use_color = -1; +static char advice_colors[][COLOR_MAXLEN] = { + GIT_COLOR_RESET, + GIT_COLOR_YELLOW, /* HINT */ +}; + +enum color_advice { + ADVICE_COLOR_RESET = 0, + ADVICE_COLOR_HINT = 1, +}; + +static int parse_advise_color_slot(const char *slot) +{ + if (!strcasecmp(slot, "reset")) + return ADVICE_COLOR_RESET; + if (!strcasecmp(slot, "hint")) + return ADVICE_COLOR_HINT; + return -1; +} + +static const char *advise_get_color(enum color_advice ix) +{ + if (want_color_stderr(advice_use_color)) + return advice_colors[ix]; + return ""; +} + +static struct { + const char *name; + int *preference; +} advice_config[] = { + { "fetchShowForcedUpdates", &advice_fetch_show_forced_updates }, + { "pushUpdateRejected", &advice_push_update_rejected }, + { "pushNonFFCurrent", &advice_push_non_ff_current }, + { "pushNonFFMatching", &advice_push_non_ff_matching }, + { "pushAlreadyExists", &advice_push_already_exists }, + { "pushFetchFirst", &advice_push_fetch_first }, + { "pushNeedsForce", &advice_push_needs_force }, + { "pushUnqualifiedRefName", &advice_push_unqualified_ref_name }, + { "statusHints", &advice_status_hints }, + { "statusUoption", &advice_status_u_option }, + { "statusAheadBehindWarning", &advice_status_ahead_behind_warning }, + { "commitBeforeMerge", &advice_commit_before_merge }, + { "resetQuiet", &advice_reset_quiet_warning }, + { "resolveConflict", &advice_resolve_conflict }, + { "sequencerInUse", &advice_sequencer_in_use }, + { "implicitIdentity", &advice_implicit_identity }, + { "detachedHead", &advice_detached_head }, + { "setupStreamFailure", &advice_set_upstream_failure }, + { "objectNameWarning", &advice_object_name_warning }, + { "amWorkDir", &advice_amworkdir }, + { "rmHints", &advice_rm_hints }, + { "addEmbeddedRepo", &advice_add_embedded_repo }, + { "ignoredHook", &advice_ignored_hook }, + { "waitingForEditor", &advice_waiting_for_editor }, + { "graftFileDeprecated", &advice_graft_file_deprecated }, + { "checkoutAmbiguousRemoteBranchName", &advice_checkout_ambiguous_remote_branch_name }, + { "nestedTag", &advice_nested_tag }, + + /* make this an alias for backward compatibility */ + { "pushNonFastForward", &advice_push_update_rejected } +}; + +void advise(const char *advice, ...) +{ + struct strbuf buf = STRBUF_INIT; + va_list params; + const char *cp, *np; + + va_start(params, advice); + strbuf_vaddf(&buf, advice, params); + va_end(params); + + for (cp = buf.buf; *cp; cp = np) { + np = strchrnul(cp, '\n'); + fprintf(stderr, _("%shint: %.*s%s\n"), + advise_get_color(ADVICE_COLOR_HINT), + (int)(np - cp), cp, + advise_get_color(ADVICE_COLOR_RESET)); + if (*np) + np++; + } + strbuf_release(&buf); +} + +int git_default_advice_config(const char *var, const char *value) +{ + const char *k, *slot_name; + int i; + + if (!strcmp(var, "color.advice")) { + advice_use_color = git_config_colorbool(var, value); + return 0; + } + + if (skip_prefix(var, "color.advice.", &slot_name)) { + int slot = parse_advise_color_slot(slot_name); + if (slot < 0) + return 0; + if (!value) + return config_error_nonbool(var); + return color_parse(value, advice_colors[slot]); + } + + if (!skip_prefix(var, "advice.", &k)) + return 0; + + for (i = 0; i < ARRAY_SIZE(advice_config); i++) { + if (strcasecmp(k, advice_config[i].name)) + continue; + *advice_config[i].preference = git_config_bool(var, value); + return 0; + } + + return 0; +} + +void list_config_advices(struct string_list *list, const char *prefix) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(advice_config); i++) + list_config_item(list, prefix, advice_config[i].name); +} + +int error_resolve_conflict(const char *me) +{ + if (!strcmp(me, "cherry-pick")) + error(_("Cherry-picking is not possible because you have unmerged files.")); + else if (!strcmp(me, "commit")) + error(_("Committing is not possible because you have unmerged files.")); + else if (!strcmp(me, "merge")) + error(_("Merging is not possible because you have unmerged files.")); + else if (!strcmp(me, "pull")) + error(_("Pulling is not possible because you have unmerged files.")); + else if (!strcmp(me, "revert")) + error(_("Reverting is not possible because you have unmerged files.")); + else + error(_("It is not possible to %s because you have unmerged files."), + me); + + if (advice_resolve_conflict) + /* + * Message used both when 'git commit' fails and when + * other commands doing a merge do. + */ + advise(_("Fix them up in the work tree, and then use 'git add/rm <file>'\n" + "as appropriate to mark resolution and make a commit.")); + return -1; +} + +void NORETURN die_resolve_conflict(const char *me) +{ + error_resolve_conflict(me); + die(_("Exiting because of an unresolved conflict.")); +} + +void NORETURN die_conclude_merge(void) +{ + error(_("You have not concluded your merge (MERGE_HEAD exists).")); + if (advice_resolve_conflict) + advise(_("Please, commit your changes before merging.")); + die(_("Exiting because of unfinished merge.")); +} + +void detach_advice(const char *new_name) +{ + const char *fmt = + _("Note: switching to '%s'.\n" + "\n" + "You are in 'detached HEAD' state. You can look around, make experimental\n" + "changes and commit them, and you can discard any commits you make in this\n" + "state without impacting any branches by switching back to a branch.\n" + "\n" + "If you want to create a new branch to retain commits you create, you may\n" + "do so (now or later) by using -c with the switch command. Example:\n" + "\n" + " git switch -c <new-branch-name>\n" + "\n" + "Or undo this operation with:\n" + "\n" + " git switch -\n" + "\n" + "Turn off this advice by setting config variable advice.detachedHead to false\n\n"); + + fprintf(stderr, fmt, new_name); +} |