[PATCH] Cleanup: git-verify-tag-script
[gitweb.git] / ls-files.c
index c63c7aa4b79d9c00c331068c6390058f8795e346..c6c32d94b0755550a97544708ce71885c02a4b68 100644 (file)
@@ -16,8 +16,15 @@ static int show_others = 0;
 static int show_ignored = 0;
 static int show_stage = 0;
 static int show_unmerged = 0;
+static int show_killed = 0;
 static int line_terminator = '\n';
 
+static const char *tag_cached = "";
+static const char *tag_unmerged = "";
+static const char *tag_removed = "";
+static const char *tag_other = "";
+static const char *tag_killed = "";
+
 static int nr_excludes;
 static const char **excludes;
 static int excludes_alloc;
@@ -82,30 +89,37 @@ static int excluded(const char *pathname)
        return 0;
 }
 
-static const char **dir;
+struct nond_on_fs {
+       int len;
+       char name[0];
+};
+
+static struct nond_on_fs **dir;
 static int nr_dir;
 static int dir_alloc;
 
 static void add_name(const char *pathname, int len)
 {
-       char *name;
+       struct nond_on_fs *ent;
 
        if (cache_name_pos(pathname, len) >= 0)
                return;
 
        if (nr_dir == dir_alloc) {
                dir_alloc = alloc_nr(dir_alloc);
-               dir = xrealloc(dir, dir_alloc*sizeof(char *));
+               dir = xrealloc(dir, dir_alloc*sizeof(ent));
        }
-       name = xmalloc(len + 1);
-       memcpy(name, pathname, len + 1);
-       dir[nr_dir++] = name;
+       ent = xmalloc(sizeof(*ent) + len + 1);
+       ent->len = len;
+       memcpy(ent->name, pathname, len);
+       dir[nr_dir++] = ent;
 }
 
 /*
  * Read a directory tree. We currently ignore anything but
- * directories and regular files. That's because git doesn't
- * handle them at all yet. Maybe that will change some day.
+ * directories, regular files and symlinks. That's because git
+ * doesn't handle them at all yet. Maybe that will change some
+ * day.
  *
  * Also, we currently ignore all names starting with a dot.
  * That likely will not change.
@@ -122,7 +136,10 @@ static void read_directory(const char *path, const char *base, int baselen)
                while ((de = readdir(dir)) != NULL) {
                        int len;
 
-                       if (de->d_name[0] == '.')
+                       if ((de->d_name[0] == '.') &&
+                           (de->d_name[1] == 0 ||
+                            !strcmp(de->d_name + 1, ".") ||
+                            !strcmp(de->d_name + 1, "git")))
                                continue;
                        if (excluded(de->d_name) != show_ignored)
                                continue;
@@ -136,16 +153,18 @@ static void read_directory(const char *path, const char *base, int baselen)
                        case DT_UNKNOWN:
                                if (lstat(fullname, &st))
                                        continue;
-                               if (S_ISREG(st.st_mode))
+                               if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
                                        break;
                                if (!S_ISDIR(st.st_mode))
                                        continue;
                                /* fallthrough */
                        case DT_DIR:
                                memcpy(fullname + baselen + len, "/", 2);
-                               read_directory(fullname, fullname, baselen + len + 1);
+                               read_directory(fullname, fullname,
+                                              baselen + len + 1);
                                continue;
                        case DT_REG:
+                       case DT_LNK:
                                break;
                        }
                        add_name(fullname, baselen + len);
@@ -156,11 +175,62 @@ static void read_directory(const char *path, const char *base, int baselen)
 
 static int cmp_name(const void *p1, const void *p2)
 {
-       const char *n1 = *(const char **)p1;
-       const char *n2 = *(const char **)p2;
-       int l1 = strlen(n1), l2 = strlen(n2);
+       const struct nond_on_fs *e1 = *(const struct nond_on_fs **)p1;
+       const struct nond_on_fs *e2 = *(const struct nond_on_fs **)p2;
+
+       return cache_name_compare(e1->name, e1->len,
+                                 e2->name, e2->len);
+}
+
+static void show_killed_files(void)
+{
+       int i;
+       for (i = 0; i < nr_dir; i++) {
+               struct nond_on_fs *ent = dir[i];
+               char *cp, *sp;
+               int pos, len, killed = 0;
 
-       return cache_name_compare(n1, l1, n2, l2);
+               for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
+                       sp = strchr(cp, '/');
+                       if (!sp) {
+                               /* If ent->name is prefix of an entry in the
+                                * cache, it will be killed.
+                                */
+                               pos = cache_name_pos(ent->name, ent->len);
+                               if (0 <= pos)
+                                       die("bug in show-killed-files");
+                               pos = -pos - 1;
+                               while (pos < active_nr &&
+                                      ce_stage(active_cache[pos]))
+                                       pos++; /* skip unmerged */
+                               if (active_nr <= pos)
+                                       break;
+                               /* pos points at a name immediately after
+                                * ent->name in the cache.  Does it expect
+                                * ent->name to be a directory?
+                                */
+                               len = ce_namelen(active_cache[pos]);
+                               if ((ent->len < len) &&
+                                   !strncmp(active_cache[pos]->name,
+                                            ent->name, ent->len) &&
+                                   active_cache[pos]->name[ent->len] == '/')
+                                       killed = 1;
+                               break;
+                       }
+                       if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
+                               /* If any of the leading directories in
+                                * ent->name is registered in the cache,
+                                * ent->name will be killed.
+                                */
+                               killed = 1;
+                               break;
+                       }
+               }
+               if (killed)
+                       printf("%s%.*s%c", tag_killed,
+                              dir[i]->len, dir[i]->name,
+                              line_terminator);
+       }
 }
 
 static void show_files(void)
@@ -168,11 +238,16 @@ static void show_files(void)
        int i;
 
        /* For cached/deleted files we don't need to even do the readdir */
-       if (show_others) {
+       if (show_others || show_killed) {
                read_directory(".", "", 0);
-               qsort(dir, nr_dir, sizeof(char *), cmp_name);
-               for (i = 0; i < nr_dir; i++)
-                       printf("%s%c", dir[i], line_terminator);
+               qsort(dir, nr_dir, sizeof(struct nond_on_fs *), cmp_name);
+               if (show_others)
+                       for (i = 0; i < nr_dir; i++)
+                               printf("%s%.*s%c", tag_other,
+                                      dir[i]->len, dir[i]->name,
+                                      line_terminator);
+               if (show_killed)
+                       show_killed_files();
        }
        if (show_cached | show_stage) {
                for (i = 0; i < active_nr; i++) {
@@ -182,14 +257,17 @@ static void show_files(void)
                        if (show_unmerged && !ce_stage(ce))
                                continue;
                        if (!show_stage)
-                               printf("%s%c", ce->name, line_terminator);
+                               printf("%s%s%c",
+                                      ce_stage(ce) ? tag_unmerged :
+                                      tag_cached,
+                                      ce->name, line_terminator);
                        else
-                               printf(/* "%06o %s %d %10d %s%c", */
-                                      "%06o %s %d %s%c",
+                               printf("%s%06o %s %d\t%s%c",
+                                      ce_stage(ce) ? tag_unmerged :
+                                      tag_cached,
                                       ntohl(ce->ce_mode),
                                       sha1_to_hex(ce->sha1),
                                       ce_stage(ce),
-                                      /* ntohl(ce->ce_size), */
                                       ce->name, line_terminator); 
                }
        }
@@ -199,15 +277,16 @@ static void show_files(void)
                        struct stat st;
                        if (excluded(ce->name) != show_ignored)
                                continue;
-                       if (!stat(ce->name, &st))
+                       if (!lstat(ce->name, &st))
                                continue;
-                       printf("%s%c", ce->name, line_terminator);
+                       printf("%s%s%c", tag_removed, ce->name,
+                              line_terminator);
                }
        }
 }
 
-static const char *show_files_usage =
-       "show-files [-z] (--[cached|deleted|others|stage|unmerged])* "
+static const char *ls_files_usage =
+       "git-ls-files [-z] [-t] (--[cached|deleted|others|stage|unmerged|killed])* "
        "[ --ignored [--exclude=<pattern>] [--exclude-from=<file>) ]";
 
 int main(int argc, char **argv)
@@ -219,6 +298,12 @@ int main(int argc, char **argv)
 
                if (!strcmp(arg, "-z")) {
                        line_terminator = 0;
+               } else if (!strcmp(arg, "-t")) {
+                       tag_cached = "H ";
+                       tag_unmerged = "M ";
+                       tag_removed = "R ";
+                       tag_other = "? ";
+                       tag_killed = "K ";
                } else if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
                        show_cached = 1;
                } else if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
@@ -229,8 +314,12 @@ int main(int argc, char **argv)
                        show_ignored = 1;
                } else if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
                        show_stage = 1;
+               } else if (!strcmp(arg, "-k") || !strcmp(arg, "--killed")) {
+                       show_killed = 1;
                } else if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
-                       // There's no point in showing unmerged unless you also show the stage information
+                       /* There's no point in showing unmerged unless
+                        * you also show the stage information.
+                        */
                        show_stage = 1;
                        show_unmerged = 1;
                } else if (!strcmp(arg, "-x") && i+1 < argc) {
@@ -242,16 +331,17 @@ int main(int argc, char **argv)
                } else if (!strncmp(arg, "--exclude-from=", 15)) {
                        add_excludes_from_file(arg+15);
                } else
-                       usage(show_files_usage);
+                       usage(ls_files_usage);
        }
 
        if (show_ignored && !nr_excludes) {
-               fprintf(stderr, "%s: --ignored needs some exclude pattern\n", argv[0]);
+               fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
+                       argv[0]);
                exit(1);
        }
 
        /* With no flags, we default to showing the cached files */
-       if (!(show_stage | show_deleted | show_others | show_unmerged))
+       if (!(show_stage | show_deleted | show_others | show_unmerged | show_killed))
                show_cached = 1;
 
        read_cache();