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};
  18static const char* use_add_msg = "use \"git add <file>...\" to incrementally add content to commit";
  19
  20static int parse_status_slot(const char *var, int offset)
  21{
  22        if (!strcasecmp(var+offset, "header"))
  23                return WT_STATUS_HEADER;
  24        if (!strcasecmp(var+offset, "updated")
  25                || !strcasecmp(var+offset, "added"))
  26                return WT_STATUS_UPDATED;
  27        if (!strcasecmp(var+offset, "changed"))
  28                return WT_STATUS_CHANGED;
  29        if (!strcasecmp(var+offset, "untracked"))
  30                return WT_STATUS_UNTRACKED;
  31        die("bad config variable '%s'", var);
  32}
  33
  34static const char* color(int slot)
  35{
  36        return wt_status_use_color ? wt_status_colors[slot] : "";
  37}
  38
  39void wt_status_prepare(struct wt_status *s)
  40{
  41        unsigned char sha1[20];
  42        const char *head;
  43
  44        head = resolve_ref("HEAD", sha1, 0, NULL);
  45        s->branch = head ? xstrdup(head) : NULL;
  46
  47        s->reference = "HEAD";
  48        s->amend = 0;
  49        s->verbose = 0;
  50        s->untracked = 0;
  51
  52        s->commitable = 0;
  53        s->workdir_dirty = 0;
  54        s->workdir_untracked = 0;
  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                s->workdir_dirty = 1;
 181                wt_status_print_header("Changed but not added", use_add_msg);
 182        }
 183        for (i = 0; i < q->nr; i++)
 184                wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
 185        if (q->nr)
 186                wt_status_print_trailer();
 187}
 188
 189void wt_status_print_initial(struct wt_status *s)
 190{
 191        int i;
 192        char buf[PATH_MAX];
 193
 194        read_cache();
 195        if (active_nr) {
 196                s->commitable = 1;
 197                wt_status_print_cached_header(NULL);
 198        }
 199        for (i = 0; i < active_nr; i++) {
 200                color_printf(color(WT_STATUS_HEADER), "#\t");
 201                color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
 202                                quote_crlf(active_cache[i]->name,
 203                                           buf, sizeof(buf)));
 204        }
 205        if (active_nr)
 206                wt_status_print_trailer();
 207}
 208
 209static void wt_status_print_updated(struct wt_status *s)
 210{
 211        struct rev_info rev;
 212        init_revisions(&rev, NULL);
 213        setup_revisions(0, NULL, &rev, s->reference);
 214        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 215        rev.diffopt.format_callback = wt_status_print_updated_cb;
 216        rev.diffopt.format_callback_data = s;
 217        rev.diffopt.detect_rename = 1;
 218        run_diff_index(&rev, 1);
 219}
 220
 221static void wt_status_print_changed(struct wt_status *s)
 222{
 223        struct rev_info rev;
 224        init_revisions(&rev, "");
 225        setup_revisions(0, NULL, &rev, NULL);
 226        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 227        rev.diffopt.format_callback = wt_status_print_changed_cb;
 228        rev.diffopt.format_callback_data = s;
 229        run_diff_files(&rev, 0);
 230}
 231
 232static void wt_status_print_untracked(struct wt_status *s)
 233{
 234        struct dir_struct dir;
 235        const char *x;
 236        int i;
 237        int shown_header = 0;
 238
 239        memset(&dir, 0, sizeof(dir));
 240
 241        dir.exclude_per_dir = ".gitignore";
 242        if (!s->untracked) {
 243                dir.show_other_directories = 1;
 244                dir.hide_empty_directories = 1;
 245        }
 246        x = git_path("info/exclude");
 247        if (file_exists(x))
 248                add_excludes_from_file(&dir, x);
 249
 250        read_directory(&dir, ".", "", 0);
 251        for(i = 0; i < dir.nr; i++) {
 252                /* check for matching entry, which is unmerged; lifted from
 253                 * builtin-ls-files:show_other_files */
 254                struct dir_entry *ent = dir.entries[i];
 255                int pos = cache_name_pos(ent->name, ent->len);
 256                struct cache_entry *ce;
 257                if (0 <= pos)
 258                        die("bug in wt_status_print_untracked");
 259                pos = -pos - 1;
 260                if (pos < active_nr) {
 261                        ce = active_cache[pos];
 262                        if (ce_namelen(ce) == ent->len &&
 263                            !memcmp(ce->name, ent->name, ent->len))
 264                                continue;
 265                }
 266                if (!shown_header) {
 267                        s->workdir_untracked = 1;
 268                        wt_status_print_header("Untracked files", use_add_msg);
 269                        shown_header = 1;
 270                }
 271                color_printf(color(WT_STATUS_HEADER), "#\t");
 272                color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
 273                                ent->len, ent->name);
 274        }
 275}
 276
 277static void wt_status_print_verbose(struct wt_status *s)
 278{
 279        struct rev_info rev;
 280        init_revisions(&rev, NULL);
 281        setup_revisions(0, NULL, &rev, s->reference);
 282        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 283        rev.diffopt.detect_rename = 1;
 284        run_diff_index(&rev, 1);
 285}
 286
 287void wt_status_print(struct wt_status *s)
 288{
 289        unsigned char sha1[20];
 290        s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 291
 292        if (s->branch)
 293                color_printf_ln(color(WT_STATUS_HEADER),
 294                        "# On branch %s", s->branch);
 295
 296        if (s->is_initial) {
 297                color_printf_ln(color(WT_STATUS_HEADER), "#");
 298                color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
 299                color_printf_ln(color(WT_STATUS_HEADER), "#");
 300                wt_status_print_initial(s);
 301        }
 302        else {
 303                wt_status_print_updated(s);
 304                discard_cache();
 305        }
 306
 307        wt_status_print_changed(s);
 308        wt_status_print_untracked(s);
 309
 310        if (s->verbose && !s->is_initial)
 311                wt_status_print_verbose(s);
 312        if (!s->commitable) {
 313                if (s->amend)
 314                        printf("# No changes\n");
 315                else if (s->workdir_dirty)
 316                        printf("no changes added to commit (use \"git add\" and/or \"git commit [-a|-i|-o]\")\n");
 317                else if (s->workdir_untracked)
 318                        printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 319                else if (s->is_initial)
 320                        printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 321                else
 322                        printf("nothing to commit (working directory clean)\n");
 323        }
 324}
 325
 326int git_status_config(const char *k, const char *v)
 327{
 328        if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 329                wt_status_use_color = git_config_colorbool(k, v);
 330                return 0;
 331        }
 332        if (!strncmp(k, "status.color.", 13) || !strncmp(k, "color.status", 13)) {
 333                int slot = parse_status_slot(k, 13);
 334                color_parse(v, k, wt_status_colors[slot]);
 335        }
 336        return git_default_config(k, v);
 337}