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_use_color = 0;
  12static char wt_status_colors[][COLOR_MAXLEN] = {
  13        "",         /* WT_STATUS_HEADER: normal */
  14        "\033[32m", /* WT_STATUS_UPDATED: green */
  15        "\033[31m", /* WT_STATUS_CHANGED: red */
  16        "\033[31m", /* WT_STATUS_UNTRACKED: red */
  17};
  18
  19static const char use_add_msg[] =
  20"use \"git add <file>...\" to update what will be committed";
  21static const char use_add_rm_msg[] =
  22"use \"git add/rm <file>...\" to update what will be committed";
  23static const char use_add_to_include_msg[] =
  24"use \"git add <file>...\" to include in what will be committed";
  25static const char *excludes_file;
  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}
  56
  57static void wt_status_print_cached_header(const char *reference)
  58{
  59        const char *c = color(WT_STATUS_HEADER);
  60        color_printf_ln(c, "# Changes to be committed:");
  61        if (reference) {
  62                color_printf_ln(c, "#   (use \"git reset %s <file>...\" to unstage)", reference);
  63        } else {
  64                color_printf_ln(c, "#   (use \"git rm --cached <file>...\" to unstage)");
  65        }
  66        color_printf_ln(c, "#");
  67}
  68
  69static void wt_status_print_header(const char *main, const char *sub)
  70{
  71        const char *c = color(WT_STATUS_HEADER);
  72        color_printf_ln(c, "# %s:", main);
  73        color_printf_ln(c, "#   (%s)", sub);
  74        color_printf_ln(c, "#");
  75}
  76
  77static void wt_status_print_trailer(void)
  78{
  79        color_printf_ln(color(WT_STATUS_HEADER), "#");
  80}
  81
  82static const char *quote_crlf(const char *in, char *buf, size_t sz)
  83{
  84        const char *scan;
  85        char *out;
  86        const char *ret = in;
  87
  88        for (scan = in, out = buf; *scan; scan++) {
  89                int ch = *scan;
  90                int quoted;
  91
  92                switch (ch) {
  93                case '\n':
  94                        quoted = 'n';
  95                        break;
  96                case '\r':
  97                        quoted = 'r';
  98                        break;
  99                default:
 100                        *out++ = ch;
 101                        continue;
 102                }
 103                *out++ = '\\';
 104                *out++ = quoted;
 105                ret = buf;
 106        }
 107        *out = '\0';
 108        return ret;
 109}
 110
 111static void wt_status_print_filepair(int t, struct diff_filepair *p)
 112{
 113        const char *c = color(t);
 114        const char *one, *two;
 115        char onebuf[PATH_MAX], twobuf[PATH_MAX];
 116
 117        one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
 118        two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
 119
 120        color_printf(color(WT_STATUS_HEADER), "#\t");
 121        switch (p->status) {
 122        case DIFF_STATUS_ADDED:
 123                color_printf(c, "new file:   %s", one);
 124                break;
 125        case DIFF_STATUS_COPIED:
 126                color_printf(c, "copied:     %s -> %s", one, two);
 127                break;
 128        case DIFF_STATUS_DELETED:
 129                color_printf(c, "deleted:    %s", one);
 130                break;
 131        case DIFF_STATUS_MODIFIED:
 132                color_printf(c, "modified:   %s", one);
 133                break;
 134        case DIFF_STATUS_RENAMED:
 135                color_printf(c, "renamed:    %s -> %s", one, two);
 136                break;
 137        case DIFF_STATUS_TYPE_CHANGED:
 138                color_printf(c, "typechange: %s", one);
 139                break;
 140        case DIFF_STATUS_UNKNOWN:
 141                color_printf(c, "unknown:    %s", one);
 142                break;
 143        case DIFF_STATUS_UNMERGED:
 144                color_printf(c, "unmerged:   %s", one);
 145                break;
 146        default:
 147                die("bug: unhandled diff status %c", p->status);
 148        }
 149        printf("\n");
 150}
 151
 152static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 153                struct diff_options *options,
 154                void *data)
 155{
 156        struct wt_status *s = data;
 157        int shown_header = 0;
 158        int i;
 159        for (i = 0; i < q->nr; i++) {
 160                if (q->queue[i]->status == 'U')
 161                        continue;
 162                if (!shown_header) {
 163                        wt_status_print_cached_header(s->reference);
 164                        s->commitable = 1;
 165                        shown_header = 1;
 166                }
 167                wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
 168        }
 169        if (shown_header)
 170                wt_status_print_trailer();
 171}
 172
 173static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 174                        struct diff_options *options,
 175                        void *data)
 176{
 177        struct wt_status *s = data;
 178        int i;
 179        if (q->nr) {
 180                const char *msg = use_add_msg;
 181                s->workdir_dirty = 1;
 182                for (i = 0; i < q->nr; i++)
 183                        if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 184                                msg = use_add_rm_msg;
 185                                break;
 186                        }
 187                wt_status_print_header("Changed but not updated", msg);
 188        }
 189        for (i = 0; i < q->nr; i++)
 190                wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
 191        if (q->nr)
 192                wt_status_print_trailer();
 193}
 194
 195static void wt_read_cache(struct wt_status *s)
 196{
 197        discard_cache();
 198        read_cache();
 199}
 200
 201static void wt_status_print_initial(struct wt_status *s)
 202{
 203        int i;
 204        char buf[PATH_MAX];
 205
 206        wt_read_cache(s);
 207        if (active_nr) {
 208                s->commitable = 1;
 209                wt_status_print_cached_header(NULL);
 210        }
 211        for (i = 0; i < active_nr; i++) {
 212                color_printf(color(WT_STATUS_HEADER), "#\t");
 213                color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
 214                                quote_crlf(active_cache[i]->name,
 215                                           buf, sizeof(buf)));
 216        }
 217        if (active_nr)
 218                wt_status_print_trailer();
 219}
 220
 221static void wt_status_print_updated(struct wt_status *s)
 222{
 223        struct rev_info rev;
 224        init_revisions(&rev, NULL);
 225        setup_revisions(0, NULL, &rev, s->reference);
 226        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 227        rev.diffopt.format_callback = wt_status_print_updated_cb;
 228        rev.diffopt.format_callback_data = s;
 229        rev.diffopt.detect_rename = 1;
 230        wt_read_cache(s);
 231        run_diff_index(&rev, 1);
 232}
 233
 234static void wt_status_print_changed(struct wt_status *s)
 235{
 236        struct rev_info rev;
 237        init_revisions(&rev, "");
 238        setup_revisions(0, NULL, &rev, NULL);
 239        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 240        rev.diffopt.format_callback = wt_status_print_changed_cb;
 241        rev.diffopt.format_callback_data = s;
 242        wt_read_cache(s);
 243        run_diff_files(&rev, 0);
 244}
 245
 246static void wt_status_print_untracked(struct wt_status *s)
 247{
 248        struct dir_struct dir;
 249        const char *x;
 250        int i;
 251        int shown_header = 0;
 252
 253        memset(&dir, 0, sizeof(dir));
 254
 255        dir.exclude_per_dir = ".gitignore";
 256        if (!s->untracked) {
 257                dir.show_other_directories = 1;
 258                dir.hide_empty_directories = 1;
 259        }
 260        x = git_path("info/exclude");
 261        if (file_exists(x))
 262                add_excludes_from_file(&dir, x);
 263        if (excludes_file && file_exists(excludes_file))
 264                add_excludes_from_file(&dir, excludes_file);
 265
 266        read_directory(&dir, ".", "", 0, NULL);
 267        for(i = 0; i < dir.nr; i++) {
 268                /* check for matching entry, which is unmerged; lifted from
 269                 * builtin-ls-files:show_other_files */
 270                struct dir_entry *ent = dir.entries[i];
 271                int pos = cache_name_pos(ent->name, ent->len);
 272                struct cache_entry *ce;
 273                if (0 <= pos)
 274                        die("bug in wt_status_print_untracked");
 275                pos = -pos - 1;
 276                if (pos < active_nr) {
 277                        ce = active_cache[pos];
 278                        if (ce_namelen(ce) == ent->len &&
 279                            !memcmp(ce->name, ent->name, ent->len))
 280                                continue;
 281                }
 282                if (!shown_header) {
 283                        s->workdir_untracked = 1;
 284                        wt_status_print_header("Untracked files",
 285                                               use_add_to_include_msg);
 286                        shown_header = 1;
 287                }
 288                color_printf(color(WT_STATUS_HEADER), "#\t");
 289                color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
 290                                ent->len, ent->name);
 291        }
 292}
 293
 294static void wt_status_print_verbose(struct wt_status *s)
 295{
 296        struct rev_info rev;
 297        init_revisions(&rev, NULL);
 298        setup_revisions(0, NULL, &rev, s->reference);
 299        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 300        rev.diffopt.detect_rename = 1;
 301        wt_read_cache(s);
 302        run_diff_index(&rev, 1);
 303}
 304
 305void wt_status_print(struct wt_status *s)
 306{
 307        unsigned char sha1[20];
 308        s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 309
 310        if (s->branch) {
 311                const char *on_what = "On branch ";
 312                const char *branch_name = s->branch;
 313                if (!prefixcmp(branch_name, "refs/heads/"))
 314                        branch_name += 11;
 315                else if (!strcmp(branch_name, "HEAD")) {
 316                        branch_name = "";
 317                        on_what = "Not currently on any branch.";
 318                }
 319                color_printf_ln(color(WT_STATUS_HEADER),
 320                        "# %s%s", on_what, branch_name);
 321        }
 322
 323        if (s->is_initial) {
 324                color_printf_ln(color(WT_STATUS_HEADER), "#");
 325                color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
 326                color_printf_ln(color(WT_STATUS_HEADER), "#");
 327                wt_status_print_initial(s);
 328        }
 329        else {
 330                wt_status_print_updated(s);
 331        }
 332
 333        wt_status_print_changed(s);
 334        wt_status_print_untracked(s);
 335
 336        if (s->verbose && !s->is_initial)
 337                wt_status_print_verbose(s);
 338        if (!s->commitable) {
 339                if (s->amend)
 340                        printf("# No changes\n");
 341                else if (s->workdir_dirty)
 342                        printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 343                else if (s->workdir_untracked)
 344                        printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 345                else if (s->is_initial)
 346                        printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 347                else
 348                        printf("nothing to commit (working directory clean)\n");
 349        }
 350}
 351
 352int git_status_config(const char *k, const char *v)
 353{
 354        if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 355                wt_status_use_color = git_config_colorbool(k, v);
 356                return 0;
 357        }
 358        if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 359                int slot = parse_status_slot(k, 13);
 360                color_parse(v, k, wt_status_colors[slot]);
 361        }
 362        if (!strcmp(k, "core.excludesfile")) {
 363                if (!v)
 364                        die("core.excludesfile without value");
 365                excludes_file = xstrdup(v);
 366                return 0;
 367        }
 368        return git_default_config(k, v);
 369}