Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2#include "wt-status.h"
   3#include "color.h"
   4#include "object.h"
   5#include "dir.h"
   6#include "commit.h"
   7#include "diff.h"
   8#include "revision.h"
   9#include "diffcore.h"
  10
  11int wt_status_relative_paths = 1;
  12int wt_status_use_color = 0;
  13static char wt_status_colors[][COLOR_MAXLEN] = {
  14        "",         /* WT_STATUS_HEADER: normal */
  15        "\033[32m", /* WT_STATUS_UPDATED: green */
  16        "\033[31m", /* WT_STATUS_CHANGED: red */
  17        "\033[31m", /* WT_STATUS_UNTRACKED: red */
  18};
  19
  20static const char use_add_msg[] =
  21"use \"git add <file>...\" to update what will be committed";
  22static const char use_add_rm_msg[] =
  23"use \"git add/rm <file>...\" to update what will be committed";
  24static const char use_add_to_include_msg[] =
  25"use \"git add <file>...\" to include in what will be committed";
  26
  27static int parse_status_slot(const char *var, int offset)
  28{
  29        if (!strcasecmp(var+offset, "header"))
  30                return WT_STATUS_HEADER;
  31        if (!strcasecmp(var+offset, "updated")
  32                || !strcasecmp(var+offset, "added"))
  33                return WT_STATUS_UPDATED;
  34        if (!strcasecmp(var+offset, "changed"))
  35                return WT_STATUS_CHANGED;
  36        if (!strcasecmp(var+offset, "untracked"))
  37                return WT_STATUS_UNTRACKED;
  38        die("bad config variable '%s'", var);
  39}
  40
  41static const char* color(int slot)
  42{
  43        return wt_status_use_color ? wt_status_colors[slot] : "";
  44}
  45
  46void wt_status_prepare(struct wt_status *s)
  47{
  48        unsigned char sha1[20];
  49        const char *head;
  50
  51        memset(s, 0, sizeof(*s));
  52        head = resolve_ref("HEAD", sha1, 0, NULL);
  53        s->branch = head ? xstrdup(head) : NULL;
  54        s->reference = "HEAD";
  55        s->fp = stdout;
  56        s->index_file = get_index_file();
  57}
  58
  59static void wt_status_print_cached_header(struct wt_status *s)
  60{
  61        const char *c = color(WT_STATUS_HEADER);
  62        color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  63        if (!s->is_initial) {
  64                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  65        } else {
  66                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  67        }
  68        color_fprintf_ln(s->fp, c, "#");
  69}
  70
  71static void wt_status_print_header(struct wt_status *s,
  72                                   const char *main, const char *sub)
  73{
  74        const char *c = color(WT_STATUS_HEADER);
  75        color_fprintf_ln(s->fp, c, "# %s:", main);
  76        color_fprintf_ln(s->fp, c, "#   (%s)", sub);
  77        color_fprintf_ln(s->fp, c, "#");
  78}
  79
  80static void wt_status_print_trailer(struct wt_status *s)
  81{
  82        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
  83}
  84
  85static char *quote_path(const char *in, int len,
  86                        struct strbuf *out, const char *prefix)
  87{
  88        if (len < 0)
  89                len = strlen(in);
  90
  91        strbuf_grow(out, len);
  92        strbuf_setlen(out, 0);
  93        if (prefix) {
  94                int off = 0;
  95                while (prefix[off] && off < len && prefix[off] == in[off])
  96                        if (prefix[off] == '/') {
  97                                prefix += off + 1;
  98                                in += off + 1;
  99                                len -= off + 1;
 100                                off = 0;
 101                        } else
 102                                off++;
 103
 104                for (; *prefix; prefix++)
 105                        if (*prefix == '/')
 106                                strbuf_addstr(out, "../");
 107        }
 108
 109        for ( ; len > 0; in++, len--) {
 110                int ch = *in;
 111
 112                switch (ch) {
 113                case '\n':
 114                        strbuf_addstr(out, "\\n");
 115                        break;
 116                case '\r':
 117                        strbuf_addstr(out, "\\r");
 118                        break;
 119                default:
 120                        strbuf_addch(out, ch);
 121                        continue;
 122                }
 123        }
 124
 125        if (!out->len)
 126                strbuf_addstr(out, "./");
 127
 128        return out->buf;
 129}
 130
 131static void wt_status_print_filepair(struct wt_status *s,
 132                                     int t, struct diff_filepair *p)
 133{
 134        const char *c = color(t);
 135        const char *one, *two;
 136        struct strbuf onebuf, twobuf;
 137
 138        strbuf_init(&onebuf, 0);
 139        strbuf_init(&twobuf, 0);
 140        one = quote_path(p->one->path, -1, &onebuf, s->prefix);
 141        two = quote_path(p->two->path, -1, &twobuf, s->prefix);
 142
 143        color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 144        switch (p->status) {
 145        case DIFF_STATUS_ADDED:
 146                color_fprintf(s->fp, c, "new file:   %s", one);
 147                break;
 148        case DIFF_STATUS_COPIED:
 149                color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 150                break;
 151        case DIFF_STATUS_DELETED:
 152                color_fprintf(s->fp, c, "deleted:    %s", one);
 153                break;
 154        case DIFF_STATUS_MODIFIED:
 155                color_fprintf(s->fp, c, "modified:   %s", one);
 156                break;
 157        case DIFF_STATUS_RENAMED:
 158                color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 159                break;
 160        case DIFF_STATUS_TYPE_CHANGED:
 161                color_fprintf(s->fp, c, "typechange: %s", one);
 162                break;
 163        case DIFF_STATUS_UNKNOWN:
 164                color_fprintf(s->fp, c, "unknown:    %s", one);
 165                break;
 166        case DIFF_STATUS_UNMERGED:
 167                color_fprintf(s->fp, c, "unmerged:   %s", one);
 168                break;
 169        default:
 170                die("bug: unhandled diff status %c", p->status);
 171        }
 172        fprintf(s->fp, "\n");
 173        strbuf_release(&onebuf);
 174        strbuf_release(&twobuf);
 175}
 176
 177static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 178                struct diff_options *options,
 179                void *data)
 180{
 181        struct wt_status *s = data;
 182        int shown_header = 0;
 183        int i;
 184        for (i = 0; i < q->nr; i++) {
 185                if (q->queue[i]->status == 'U')
 186                        continue;
 187                if (!shown_header) {
 188                        wt_status_print_cached_header(s);
 189                        s->commitable = 1;
 190                        shown_header = 1;
 191                }
 192                wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 193        }
 194        if (shown_header)
 195                wt_status_print_trailer(s);
 196}
 197
 198static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 199                        struct diff_options *options,
 200                        void *data)
 201{
 202        struct wt_status *s = data;
 203        int i;
 204        if (q->nr) {
 205                const char *msg = use_add_msg;
 206                s->workdir_dirty = 1;
 207                for (i = 0; i < q->nr; i++)
 208                        if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 209                                msg = use_add_rm_msg;
 210                                break;
 211                        }
 212                wt_status_print_header(s, "Changed but not updated", msg);
 213        }
 214        for (i = 0; i < q->nr; i++)
 215                wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 216        if (q->nr)
 217                wt_status_print_trailer(s);
 218}
 219
 220static void wt_status_print_initial(struct wt_status *s)
 221{
 222        int i;
 223        struct strbuf buf;
 224
 225        strbuf_init(&buf, 0);
 226        if (active_nr) {
 227                s->commitable = 1;
 228                wt_status_print_cached_header(s);
 229        }
 230        for (i = 0; i < active_nr; i++) {
 231                color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 232                color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 233                                quote_path(active_cache[i]->name, -1,
 234                                           &buf, s->prefix));
 235        }
 236        if (active_nr)
 237                wt_status_print_trailer(s);
 238        strbuf_release(&buf);
 239}
 240
 241static void wt_status_print_updated(struct wt_status *s)
 242{
 243        struct rev_info rev;
 244        init_revisions(&rev, NULL);
 245        setup_revisions(0, NULL, &rev, s->reference);
 246        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 247        rev.diffopt.format_callback = wt_status_print_updated_cb;
 248        rev.diffopt.format_callback_data = s;
 249        rev.diffopt.detect_rename = 1;
 250        rev.diffopt.rename_limit = 100;
 251        rev.diffopt.break_opt = 0;
 252        run_diff_index(&rev, 1);
 253}
 254
 255static void wt_status_print_changed(struct wt_status *s)
 256{
 257        struct rev_info rev;
 258        init_revisions(&rev, "");
 259        setup_revisions(0, NULL, &rev, NULL);
 260        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 261        rev.diffopt.format_callback = wt_status_print_changed_cb;
 262        rev.diffopt.format_callback_data = s;
 263        run_diff_files(&rev, 0);
 264}
 265
 266static void wt_status_print_untracked(struct wt_status *s)
 267{
 268        struct dir_struct dir;
 269        int i;
 270        int shown_header = 0;
 271        struct strbuf buf;
 272
 273        strbuf_init(&buf, 0);
 274        memset(&dir, 0, sizeof(dir));
 275
 276        if (!s->untracked) {
 277                dir.show_other_directories = 1;
 278                dir.hide_empty_directories = 1;
 279        }
 280        setup_standard_excludes(&dir);
 281
 282        read_directory(&dir, ".", "", 0, NULL);
 283        for(i = 0; i < dir.nr; i++) {
 284                /* check for matching entry, which is unmerged; lifted from
 285                 * builtin-ls-files:show_other_files */
 286                struct dir_entry *ent = dir.entries[i];
 287                int pos = cache_name_pos(ent->name, ent->len);
 288                struct cache_entry *ce;
 289                if (0 <= pos)
 290                        die("bug in wt_status_print_untracked");
 291                pos = -pos - 1;
 292                if (pos < active_nr) {
 293                        ce = active_cache[pos];
 294                        if (ce_namelen(ce) == ent->len &&
 295                            !memcmp(ce->name, ent->name, ent->len))
 296                                continue;
 297                }
 298                if (!shown_header) {
 299                        s->workdir_untracked = 1;
 300                        wt_status_print_header(s, "Untracked files",
 301                                               use_add_to_include_msg);
 302                        shown_header = 1;
 303                }
 304                color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 305                color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 306                                quote_path(ent->name, ent->len,
 307                                        &buf, s->prefix));
 308        }
 309        strbuf_release(&buf);
 310}
 311
 312static void wt_status_print_verbose(struct wt_status *s)
 313{
 314        struct rev_info rev;
 315        int saved_stdout;
 316
 317        fflush(s->fp);
 318
 319        /* Sigh, the entire diff machinery is hardcoded to output to
 320         * stdout.  Do the dup-dance...*/
 321        saved_stdout = dup(STDOUT_FILENO);
 322        if (saved_stdout < 0 ||dup2(fileno(s->fp), STDOUT_FILENO) < 0)
 323                die("couldn't redirect stdout\n");
 324
 325        init_revisions(&rev, NULL);
 326        setup_revisions(0, NULL, &rev, s->reference);
 327        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 328        rev.diffopt.detect_rename = 1;
 329        run_diff_index(&rev, 1);
 330
 331        fflush(stdout);
 332
 333        if (dup2(saved_stdout, STDOUT_FILENO) < 0)
 334                die("couldn't restore stdout\n");
 335        close(saved_stdout);
 336}
 337
 338void wt_status_print(struct wt_status *s)
 339{
 340        unsigned char sha1[20];
 341        s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 342
 343        if (s->branch) {
 344                const char *on_what = "On branch ";
 345                const char *branch_name = s->branch;
 346                if (!prefixcmp(branch_name, "refs/heads/"))
 347                        branch_name += 11;
 348                else if (!strcmp(branch_name, "HEAD")) {
 349                        branch_name = "";
 350                        on_what = "Not currently on any branch.";
 351                }
 352                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
 353                        "# %s%s", on_what, branch_name);
 354        }
 355
 356        if (s->is_initial) {
 357                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 358                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 359                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 360                wt_status_print_initial(s);
 361        }
 362        else {
 363                wt_status_print_updated(s);
 364        }
 365
 366        wt_status_print_changed(s);
 367        wt_status_print_untracked(s);
 368
 369        if (s->verbose && !s->is_initial)
 370                wt_status_print_verbose(s);
 371        if (!s->commitable) {
 372                if (s->amend)
 373                        fprintf(s->fp, "# No changes\n");
 374                else if (s->nowarn)
 375                        ; /* nothing */
 376                else if (s->workdir_dirty)
 377                        printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 378                else if (s->workdir_untracked)
 379                        printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 380                else if (s->is_initial)
 381                        printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 382                else
 383                        printf("nothing to commit (working directory clean)\n");
 384        }
 385}
 386
 387int git_status_config(const char *k, const char *v)
 388{
 389        if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 390                wt_status_use_color = git_config_colorbool(k, v, -1);
 391                return 0;
 392        }
 393        if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 394                int slot = parse_status_slot(k, 13);
 395                if (!v)
 396                        return config_error_nonbool(k);
 397                color_parse(v, k, wt_status_colors[slot]);
 398                return 0;
 399        }
 400        if (!strcmp(k, "status.relativepaths")) {
 401                wt_status_relative_paths = git_config_bool(k, v);
 402                return 0;
 403        }
 404        return git_default_config(k, v);
 405}