+ "%s%.*s", comment_line_string,
+ (int)(ep - cp), cp);
+ if (s->display_comment_prefix)
+ color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
+ comment_line_char);
+ else
+ fprintf_ln(s->fp, "");
+}
+
+static int has_unmerged(struct wt_status *s)
+{
+ int i;
+
+ for (i = 0; i < s->change.nr; i++) {
+ struct wt_status_change_data *d;
+ d = s->change.items[i].util;
+ if (d->stagemask)
+ return 1;
+ }
+ return 0;
+}
+
+static void show_merge_in_progress(struct wt_status *s,
+ struct wt_status_state *state,
+ const char *color)
+{
+ if (has_unmerged(s)) {
+ status_printf_ln(s, color, _("You have unmerged paths."));
+ if (s->hints)
+ status_printf_ln(s, color,
+ _(" (fix conflicts and run \"git commit\")"));
+ } else {
+ status_printf_ln(s, color,
+ _("All conflicts fixed but you are still merging."));
+ if (s->hints)
+ status_printf_ln(s, color,
+ _(" (use \"git commit\" to conclude merge)"));
+ }
+ wt_status_print_trailer(s);
+}
+
+static void show_am_in_progress(struct wt_status *s,
+ struct wt_status_state *state,
+ const char *color)
+{
+ status_printf_ln(s, color,
+ _("You are in the middle of an am session."));
+ if (state->am_empty_patch)
+ status_printf_ln(s, color,
+ _("The current patch is empty."));
+ if (s->hints) {
+ if (!state->am_empty_patch)
+ status_printf_ln(s, color,
+ _(" (fix conflicts and then run \"git am --continue\")"));
+ status_printf_ln(s, color,
+ _(" (use \"git am --skip\" to skip this patch)"));
+ status_printf_ln(s, color,
+ _(" (use \"git am --abort\" to restore the original branch)"));
+ }
+ wt_status_print_trailer(s);
+}
+
+static char *read_line_from_git_path(const char *filename)
+{
+ struct strbuf buf = STRBUF_INIT;
+ FILE *fp = fopen(git_path("%s", filename), "r");
+ if (!fp) {
+ strbuf_release(&buf);
+ return NULL;
+ }
+ strbuf_getline(&buf, fp, '\n');
+ if (!fclose(fp)) {
+ return strbuf_detach(&buf, NULL);
+ } else {
+ strbuf_release(&buf);
+ return NULL;
+ }
+}
+
+static int split_commit_in_progress(struct wt_status *s)
+{
+ int split_in_progress = 0;
+ char *head = read_line_from_git_path("HEAD");
+ char *orig_head = read_line_from_git_path("ORIG_HEAD");
+ char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
+ char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
+
+ if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
+ !s->branch || strcmp(s->branch, "HEAD"))
+ return split_in_progress;
+
+ if (!strcmp(rebase_amend, rebase_orig_head)) {
+ if (strcmp(head, rebase_amend))
+ split_in_progress = 1;
+ } else if (strcmp(orig_head, rebase_orig_head)) {
+ split_in_progress = 1;
+ }
+
+ if (!s->amend && !s->nowarn && !s->workdir_dirty)
+ split_in_progress = 0;
+
+ free(head);
+ free(orig_head);
+ free(rebase_amend);
+ free(rebase_orig_head);
+ return split_in_progress;
+}
+
+static void show_rebase_in_progress(struct wt_status *s,
+ struct wt_status_state *state,
+ const char *color)
+{
+ struct stat st;
+
+ if (has_unmerged(s)) {
+ if (state->branch)
+ status_printf_ln(s, color,
+ _("You are currently rebasing branch '%s' on '%s'."),
+ state->branch,
+ state->onto);
+ else
+ status_printf_ln(s, color,
+ _("You are currently rebasing."));
+ if (s->hints) {
+ status_printf_ln(s, color,
+ _(" (fix conflicts and then run \"git rebase --continue\")"));
+ status_printf_ln(s, color,
+ _(" (use \"git rebase --skip\" to skip this patch)"));
+ status_printf_ln(s, color,
+ _(" (use \"git rebase --abort\" to check out the original branch)"));
+ }
+ } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
+ if (state->branch)
+ status_printf_ln(s, color,
+ _("You are currently rebasing branch '%s' on '%s'."),
+ state->branch,
+ state->onto);
+ else
+ status_printf_ln(s, color,
+ _("You are currently rebasing."));
+ if (s->hints)
+ status_printf_ln(s, color,
+ _(" (all conflicts fixed: run \"git rebase --continue\")"));
+ } else if (split_commit_in_progress(s)) {
+ if (state->branch)
+ status_printf_ln(s, color,
+ _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
+ state->branch,
+ state->onto);
+ else
+ status_printf_ln(s, color,
+ _("You are currently splitting a commit during a rebase."));
+ if (s->hints)
+ status_printf_ln(s, color,
+ _(" (Once your working directory is clean, run \"git rebase --continue\")"));
+ } else {
+ if (state->branch)
+ status_printf_ln(s, color,
+ _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
+ state->branch,
+ state->onto);
+ else
+ status_printf_ln(s, color,
+ _("You are currently editing a commit during a rebase."));
+ if (s->hints && !s->amend) {
+ status_printf_ln(s, color,
+ _(" (use \"git commit --amend\" to amend the current commit)"));
+ status_printf_ln(s, color,
+ _(" (use \"git rebase --continue\" once you are satisfied with your changes)"));
+ }
+ }
+ wt_status_print_trailer(s);
+}
+
+static void show_cherry_pick_in_progress(struct wt_status *s,
+ struct wt_status_state *state,
+ const char *color)
+{
+ status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
+ find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
+ if (s->hints) {
+ if (has_unmerged(s))
+ status_printf_ln(s, color,
+ _(" (fix conflicts and run \"git cherry-pick --continue\")"));
+ else
+ status_printf_ln(s, color,
+ _(" (all conflicts fixed: run \"git cherry-pick --continue\")"));
+ status_printf_ln(s, color,
+ _(" (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
+ }
+ wt_status_print_trailer(s);
+}
+
+static void show_revert_in_progress(struct wt_status *s,
+ struct wt_status_state *state,
+ const char *color)
+{
+ status_printf_ln(s, color, _("You are currently reverting commit %s."),
+ find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
+ if (s->hints) {
+ if (has_unmerged(s))
+ status_printf_ln(s, color,
+ _(" (fix conflicts and run \"git revert --continue\")"));
+ else
+ status_printf_ln(s, color,
+ _(" (all conflicts fixed: run \"git revert --continue\")"));
+ status_printf_ln(s, color,
+ _(" (use \"git revert --abort\" to cancel the revert operation)"));
+ }
+ wt_status_print_trailer(s);
+}
+
+static void show_bisect_in_progress(struct wt_status *s,
+ struct wt_status_state *state,
+ const char *color)
+{
+ if (state->branch)
+ status_printf_ln(s, color,
+ _("You are currently bisecting, started from branch '%s'."),
+ state->branch);
+ else
+ status_printf_ln(s, color,
+ _("You are currently bisecting."));
+ if (s->hints)
+ status_printf_ln(s, color,
+ _(" (use \"git bisect reset\" to get back to the original branch)"));
+ wt_status_print_trailer(s);
+}
+
+/*
+ * Extract branch information from rebase/bisect
+ */
+static char *read_and_strip_branch(const char *path)
+{
+ struct strbuf sb = STRBUF_INIT;
+ unsigned char sha1[20];
+
+ if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
+ goto got_nothing;
+
+ while (&sb.len && sb.buf[sb.len - 1] == '\n')
+ strbuf_setlen(&sb, sb.len - 1);
+ if (!sb.len)
+ goto got_nothing;
+ if (starts_with(sb.buf, "refs/heads/"))
+ strbuf_remove(&sb,0, strlen("refs/heads/"));
+ else if (starts_with(sb.buf, "refs/"))
+ ;
+ else if (!get_sha1_hex(sb.buf, sha1)) {
+ const char *abbrev;
+ abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
+ strbuf_reset(&sb);
+ strbuf_addstr(&sb, abbrev);
+ } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
+ goto got_nothing;
+ else /* bisect */
+ ;
+ return strbuf_detach(&sb, NULL);
+
+got_nothing:
+ strbuf_release(&sb);
+ return NULL;
+}
+
+struct grab_1st_switch_cbdata {
+ struct strbuf buf;
+ unsigned char nsha1[20];
+};
+
+static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
+ const char *email, unsigned long timestamp, int tz,
+ const char *message, void *cb_data)
+{
+ struct grab_1st_switch_cbdata *cb = cb_data;
+ const char *target = NULL, *end;
+
+ if (!starts_with(message, "checkout: moving from "))
+ return 0;
+ message += strlen("checkout: moving from ");
+ target = strstr(message, " to ");
+ if (!target)
+ return 0;
+ target += strlen(" to ");
+ strbuf_reset(&cb->buf);
+ hashcpy(cb->nsha1, nsha1);
+ for (end = target; *end && *end != '\n'; end++)
+ ;
+ strbuf_add(&cb->buf, target, end - target);
+ return 1;
+}
+
+static void wt_status_get_detached_from(struct wt_status_state *state)
+{
+ struct grab_1st_switch_cbdata cb;
+ struct commit *commit;
+ unsigned char sha1[20];
+ char *ref = NULL;
+
+ strbuf_init(&cb.buf, 0);
+ if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
+ strbuf_release(&cb.buf);
+ return;
+ }
+
+ if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
+ /* sha1 is a commit? match without further lookup */
+ (!hashcmp(cb.nsha1, sha1) ||
+ /* perhaps sha1 is a tag, try to dereference to a commit */
+ ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
+ !hashcmp(cb.nsha1, commit->object.sha1)))) {
+ int ofs;
+ if (starts_with(ref, "refs/tags/"))
+ ofs = strlen("refs/tags/");
+ else if (starts_with(ref, "refs/remotes/"))
+ ofs = strlen("refs/remotes/");
+ else
+ ofs = 0;
+ state->detached_from = xstrdup(ref + ofs);
+ } else
+ state->detached_from =
+ xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
+ hashcpy(state->detached_sha1, cb.nsha1);
+
+ free(ref);
+ strbuf_release(&cb.buf);
+}
+
+void wt_status_get_state(struct wt_status_state *state,
+ int get_detached_from)
+{
+ struct stat st;
+ unsigned char sha1[20];
+
+ if (!stat(git_path("MERGE_HEAD"), &st)) {
+ state->merge_in_progress = 1;
+ } else if (!stat(git_path("rebase-apply"), &st)) {
+ if (!stat(git_path("rebase-apply/applying"), &st)) {
+ state->am_in_progress = 1;
+ if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
+ state->am_empty_patch = 1;
+ } else {
+ state->rebase_in_progress = 1;
+ state->branch = read_and_strip_branch("rebase-apply/head-name");
+ state->onto = read_and_strip_branch("rebase-apply/onto");
+ }
+ } else if (!stat(git_path("rebase-merge"), &st)) {
+ if (!stat(git_path("rebase-merge/interactive"), &st))
+ state->rebase_interactive_in_progress = 1;
+ else
+ state->rebase_in_progress = 1;
+ state->branch = read_and_strip_branch("rebase-merge/head-name");
+ state->onto = read_and_strip_branch("rebase-merge/onto");
+ } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
+ !get_sha1("CHERRY_PICK_HEAD", sha1)) {
+ state->cherry_pick_in_progress = 1;
+ hashcpy(state->cherry_pick_head_sha1, sha1);
+ }
+ if (!stat(git_path("BISECT_LOG"), &st)) {
+ state->bisect_in_progress = 1;
+ state->branch = read_and_strip_branch("BISECT_START");
+ }
+ if (!stat(git_path("REVERT_HEAD"), &st) &&
+ !get_sha1("REVERT_HEAD", sha1)) {
+ state->revert_in_progress = 1;
+ hashcpy(state->revert_head_sha1, sha1);
+ }
+
+ if (get_detached_from)
+ wt_status_get_detached_from(state);
+}
+
+static void wt_status_print_state(struct wt_status *s,
+ struct wt_status_state *state)
+{
+ const char *state_color = color(WT_STATUS_HEADER, s);
+ if (state->merge_in_progress)
+ show_merge_in_progress(s, state, state_color);
+ else if (state->am_in_progress)
+ show_am_in_progress(s, state, state_color);
+ else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
+ show_rebase_in_progress(s, state, state_color);
+ else if (state->cherry_pick_in_progress)
+ show_cherry_pick_in_progress(s, state, state_color);
+ else if (state->revert_in_progress)
+ show_revert_in_progress(s, state, state_color);
+ if (state->bisect_in_progress)
+ show_bisect_in_progress(s, state, state_color);