Andrew's git / gitweb.git / wt-status.c
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wt-status.con commit git-svn: add tests for command-line usage of init and clone commands (41337e2)
   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";
  25
  26static int parse_status_slot(const char *var, int offset)
  27{
  28        if (!strcasecmp(var+offset, "header"))
  29                return WT_STATUS_HEADER;
  30        if (!strcasecmp(var+offset, "updated")
  31                || !strcasecmp(var+offset, "added"))
  32                return WT_STATUS_UPDATED;
  33        if (!strcasecmp(var+offset, "changed"))
  34                return WT_STATUS_CHANGED;
  35        if (!strcasecmp(var+offset, "untracked"))
  36                return WT_STATUS_UNTRACKED;
  37        die("bad config variable '%s'", var);
  38}
  39
  40static const char* color(int slot)
  41{
  42        return wt_status_use_color ? wt_status_colors[slot] : "";
  43}
  44
  45void wt_status_prepare(struct wt_status *s)
  46{
  47        unsigned char sha1[20];
  48        const char *head;
  49
  50        memset(s, 0, sizeof(*s));
  51        head = resolve_ref("HEAD", sha1, 0, NULL);
  52        s->branch = head ? xstrdup(head) : NULL;
  53        s->reference = "HEAD";
  54        s->fp = stdout;
  55        s->index_file = get_index_file();
  56}
  57
  58static void wt_status_print_cached_header(struct wt_status *s)
  59{
  60        const char *c = color(WT_STATUS_HEADER);
  61        color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  62        if (s->reference) {
  63                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  64        } else {
  65                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  66        }
  67        color_fprintf_ln(s->fp, c, "#");
  68}
  69
  70static void wt_status_print_header(struct wt_status *s,
  71                                   const char *main, const char *sub)
  72{
  73        const char *c = color(WT_STATUS_HEADER);
  74        color_fprintf_ln(s->fp, c, "# %s:", main);
  75        color_fprintf_ln(s->fp, c, "#   (%s)", sub);
  76        color_fprintf_ln(s->fp, c, "#");
  77}
  78
  79static void wt_status_print_trailer(struct wt_status *s)
  80{
  81        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
  82}
  83
  84static const char *quote_crlf(const char *in, char *buf, size_t sz)
  85{
  86        const char *scan;
  87        char *out;
  88        const char *ret = in;
  89
  90        for (scan = in, out = buf; *scan; scan++) {
  91                int ch = *scan;
  92                int quoted;
  93
  94                switch (ch) {
  95                case '\n':
  96                        quoted = 'n';
  97                        break;
  98                case '\r':
  99                        quoted = 'r';
 100                        break;
 101                default:
 102                        *out++ = ch;
 103                        continue;
 104                }
 105                *out++ = '\\';
 106                *out++ = quoted;
 107                ret = buf;
 108        }
 109        *out = '\0';
 110        return ret;
 111}
 112
 113static void wt_status_print_filepair(struct wt_status *s,
 114                                     int t, struct diff_filepair *p)
 115{
 116        const char *c = color(t);
 117        const char *one, *two;
 118        char onebuf[PATH_MAX], twobuf[PATH_MAX];
 119
 120        one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
 121        two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
 122
 123        color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 124        switch (p->status) {
 125        case DIFF_STATUS_ADDED:
 126                color_fprintf(s->fp, c, "new file:   %s", one);
 127                break;
 128        case DIFF_STATUS_COPIED:
 129                color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 130                break;
 131        case DIFF_STATUS_DELETED:
 132                color_fprintf(s->fp, c, "deleted:    %s", one);
 133                break;
 134        case DIFF_STATUS_MODIFIED:
 135                color_fprintf(s->fp, c, "modified:   %s", one);
 136                break;
 137        case DIFF_STATUS_RENAMED:
 138                color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 139                break;
 140        case DIFF_STATUS_TYPE_CHANGED:
 141                color_fprintf(s->fp, c, "typechange: %s", one);
 142                break;
 143        case DIFF_STATUS_UNKNOWN:
 144                color_fprintf(s->fp, c, "unknown:    %s", one);
 145                break;
 146        case DIFF_STATUS_UNMERGED:
 147                color_fprintf(s->fp, c, "unmerged:   %s", one);
 148                break;
 149        default:
 150                die("bug: unhandled diff status %c", p->status);
 151        }
 152        fprintf(s->fp, "\n");
 153}
 154
 155static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 156                struct diff_options *options,
 157                void *data)
 158{
 159        struct wt_status *s = data;
 160        int shown_header = 0;
 161        int i;
 162        for (i = 0; i < q->nr; i++) {
 163                if (q->queue[i]->status == 'U')
 164                        continue;
 165                if (!shown_header) {
 166                        wt_status_print_cached_header(s);
 167                        s->commitable = 1;
 168                        shown_header = 1;
 169                }
 170                wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 171        }
 172        if (shown_header)
 173                wt_status_print_trailer(s);
 174}
 175
 176static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 177                        struct diff_options *options,
 178                        void *data)
 179{
 180        struct wt_status *s = data;
 181        int i;
 182        if (q->nr) {
 183                const char *msg = use_add_msg;
 184                s->workdir_dirty = 1;
 185                for (i = 0; i < q->nr; i++)
 186                        if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 187                                msg = use_add_rm_msg;
 188                                break;
 189                        }
 190                wt_status_print_header(s, "Changed but not updated", msg);
 191        }
 192        for (i = 0; i < q->nr; i++)
 193                wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 194        if (q->nr)
 195                wt_status_print_trailer(s);
 196}
 197
 198static void wt_read_cache(struct wt_status *s)
 199{
 200        discard_cache();
 201        read_cache_from(s->index_file);
 202}
 203
 204static void wt_status_print_initial(struct wt_status *s)
 205{
 206        int i;
 207        char buf[PATH_MAX];
 208
 209        wt_read_cache(s);
 210        if (active_nr) {
 211                s->commitable = 1;
 212                wt_status_print_cached_header(s);
 213        }
 214        for (i = 0; i < active_nr; i++) {
 215                color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 216                color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 217                                quote_crlf(active_cache[i]->name,
 218                                           buf, sizeof(buf)));
 219        }
 220        if (active_nr)
 221                wt_status_print_trailer(s);
 222}
 223
 224static void wt_status_print_updated(struct wt_status *s)
 225{
 226        struct rev_info rev;
 227        init_revisions(&rev, NULL);
 228        setup_revisions(0, NULL, &rev, s->reference);
 229        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 230        rev.diffopt.format_callback = wt_status_print_updated_cb;
 231        rev.diffopt.format_callback_data = s;
 232        rev.diffopt.detect_rename = 1;
 233        rev.diffopt.rename_limit = 100;
 234        wt_read_cache(s);
 235        run_diff_index(&rev, 1);
 236}
 237
 238static void wt_status_print_changed(struct wt_status *s)
 239{
 240        struct rev_info rev;
 241        init_revisions(&rev, "");
 242        setup_revisions(0, NULL, &rev, NULL);
 243        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 244        rev.diffopt.format_callback = wt_status_print_changed_cb;
 245        rev.diffopt.format_callback_data = s;
 246        wt_read_cache(s);
 247        run_diff_files(&rev, 0);
 248}
 249
 250static void wt_status_print_untracked(struct wt_status *s)
 251{
 252        struct dir_struct dir;
 253        int i;
 254        int shown_header = 0;
 255
 256        memset(&dir, 0, sizeof(dir));
 257
 258        if (!s->untracked) {
 259                dir.show_other_directories = 1;
 260                dir.hide_empty_directories = 1;
 261        }
 262        setup_standard_excludes(&dir);
 263
 264        read_directory(&dir, ".", "", 0, NULL);
 265        for(i = 0; i < dir.nr; i++) {
 266                /* check for matching entry, which is unmerged; lifted from
 267                 * builtin-ls-files:show_other_files */
 268                struct dir_entry *ent = dir.entries[i];
 269                int pos = cache_name_pos(ent->name, ent->len);
 270                struct cache_entry *ce;
 271                if (0 <= pos)
 272                        die("bug in wt_status_print_untracked");
 273                pos = -pos - 1;
 274                if (pos < active_nr) {
 275                        ce = active_cache[pos];
 276                        if (ce_namelen(ce) == ent->len &&
 277                            !memcmp(ce->name, ent->name, ent->len))
 278                                continue;
 279                }
 280                if (!shown_header) {
 281                        s->workdir_untracked = 1;
 282                        wt_status_print_header(s, "Untracked files",
 283                                               use_add_to_include_msg);
 284                        shown_header = 1;
 285                }
 286                color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 287                color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%.*s",
 288                                ent->len, ent->name);
 289        }
 290}
 291
 292static void wt_status_print_verbose(struct wt_status *s)
 293{
 294        struct rev_info rev;
 295        init_revisions(&rev, NULL);
 296        setup_revisions(0, NULL, &rev, s->reference);
 297        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 298        rev.diffopt.detect_rename = 1;
 299        wt_read_cache(s);
 300        run_diff_index(&rev, 1);
 301}
 302
 303void wt_status_print(struct wt_status *s)
 304{
 305        unsigned char sha1[20];
 306        s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 307
 308        if (s->branch) {
 309                const char *on_what = "On branch ";
 310                const char *branch_name = s->branch;
 311                if (!prefixcmp(branch_name, "refs/heads/"))
 312                        branch_name += 11;
 313                else if (!strcmp(branch_name, "HEAD")) {
 314                        branch_name = "";
 315                        on_what = "Not currently on any branch.";
 316                }
 317                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
 318                        "# %s%s", on_what, branch_name);
 319        }
 320
 321        if (s->is_initial) {
 322                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 323                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 324                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 325                wt_status_print_initial(s);
 326        }
 327        else {
 328                wt_status_print_updated(s);
 329        }
 330
 331        wt_status_print_changed(s);
 332        wt_status_print_untracked(s);
 333
 334        if (s->verbose && !s->is_initial)
 335                wt_status_print_verbose(s);
 336        if (!s->commitable) {
 337                if (s->amend)
 338                        fprintf(s->fp, "# No changes\n");
 339                else if (s->workdir_dirty)
 340                        printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 341                else if (s->workdir_untracked)
 342                        printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 343                else if (s->is_initial)
 344                        printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 345                else
 346                        printf("nothing to commit (working directory clean)\n");
 347        }
 348}
 349
 350int git_status_config(const char *k, const char *v)
 351{
 352        if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 353                wt_status_use_color = git_config_colorbool(k, v);
 354                return 0;
 355        }
 356        if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 357                int slot = parse_status_slot(k, 13);
 358                color_parse(v, k, wt_status_colors[slot]);
 359        }
 360        return git_default_config(k, v);
 361}