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