Add support for launching git-mergetool from the status view

[tig] / tig.c

diff --git a/tig.c b/tig.c
index b9fd89c7f20c44a9c1830235eded41cd8f5f8180..1cffb040f7aff7826e0ba6140e2fecab2ce84445 100644 (file)
--- a/tig.c
+++ b/tig.c
@@ -352,6 +352,7 @@ sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
        REQ_(TOGGLE_LINENO,     "Toggle line numbers"), \
        REQ_(TOGGLE_REV_GRAPH,  "Toggle revision graph visualization"), \
        REQ_(STATUS_UPDATE,     "Update file status"), \
+       REQ_(STATUS_MERGE,      "Merge file using external tool"), \
        REQ_(EDIT,              "Open in editor"), \
        REQ_(CHERRY_PICK,       "Cherry-pick commit to current branch")
 
@@ -787,6 +788,7 @@ static struct keybinding default_keybindings[] = {
        { 'g',          REQ_TOGGLE_REV_GRAPH },
        { ':',          REQ_PROMPT },
        { 'u',          REQ_STATUS_UPDATE },
+       { 'M',          REQ_STATUS_MERGE },
        { 'e',          REQ_EDIT },
        { 'C',          REQ_CHERRY_PICK },
 
@@ -2157,6 +2159,18 @@ open_external_viewer(const char *cmd)
        redraw_display();
 }
 
+static void
+open_mergetool(const char *file)
+{
+       char cmd[SIZEOF_STR];
+       char file_sq[SIZEOF_STR];
+
+       if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
+           string_format(cmd, "git mergetool %s", file_sq)) {
+               open_external_viewer(cmd);
+       }
+}
+
 static void
 open_editor(bool from_root, const char *file)
 {
@@ -2989,6 +3003,7 @@ static bool
 status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
 {
        struct status *file = NULL;
+       struct status *unmerged = NULL;
        char buf[SIZEOF_STR * 4];
        size_t bufsize = 0;
        FILE *pipe;
@@ -3038,6 +3053,23 @@ status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
                                if (!sep)
                                        break;
                                sepsize = sep - buf + 1;
+
+                               /* Collapse all 'M'odified entries that
+                                * follow a associated 'U'nmerged entry.
+                                */
+                               if (file->status == 'U') {
+                                       unmerged = file;
+
+                               } else if (unmerged) {
+                                       int collapse = !strcmp(buf, unmerged->name);
+
+                                       unmerged = NULL;
+                                       if (collapse) {
+                                               free(file);
+                                               view->lines--;
+                                               continue;
+                                       }
+                               }
                        }
 
                        /* git-ls-files just delivers a NUL separated
@@ -3063,7 +3095,8 @@ error_out:
        return TRUE;
 }
 
-#define STATUS_DIFF_INDEX_CMD "git diff-index -z --cached HEAD"
+/* Don't show unmerged entries in the staged section. */
+#define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached HEAD"
 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
 #define STATUS_LIST_OTHER_CMD \
        "git ls-files -z --others --exclude-per-directory=.gitignore"
@@ -3342,6 +3375,11 @@ status_request(struct view *view, enum request request, struct line *line)
                status_update(view);
                break;
 
+       case REQ_STATUS_MERGE:
+               open_mergetool(status->name);
+               open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
+               break;
+
        case REQ_EDIT:
                if (!status)
                        return request;
@@ -3371,6 +3409,7 @@ status_select(struct view *view, struct line *line)
        struct status *status = line->data;
        char file[SIZEOF_STR] = "all files";
        char *text;
+       char *key;
 
        if (status && !string_format(file, "'%s'", status->name))
                return;
@@ -3399,7 +3438,15 @@ status_select(struct view *view, struct line *line)
                die("w00t");
        }
 
-       string_format(view->ref, text, get_key(REQ_STATUS_UPDATE), file);
+       if (status && status->status == 'U') {
+               text = "Press %s to resolve conflict in %s";
+               key = get_key(REQ_STATUS_MERGE);
+
+       } else {
+               key = get_key(REQ_STATUS_UPDATE);
+       }
+
+       string_format(view->ref, text, key, file);
 }
 
 static bool