3272 findunref should support git

*** 74,85 ****
          const char      *name;
          checkscm_func_t *checkfunc;
          chdirscm_func_t *chdirfunc;
  } scm_t;
  
! static checkscm_func_t check_tw, check_hg;
! static chdirscm_func_t chdir_hg;
  static int      pnset_add(pnset_t *, const char *);
  static int      pnset_check(const pnset_t *, const char *);
  static void     pnset_empty(pnset_t *);
  static void     pnset_free(pnset_t *);
  static int      checkpath(const char *, const struct stat *, int, struct FTW *);
--- 74,85 ----
          const char      *name;
          checkscm_func_t *checkfunc;
          chdirscm_func_t *chdirfunc;
  } scm_t;
  
! static checkscm_func_t check_tw, check_hg, check_git;
! static chdirscm_func_t chdir_hg, chdir_git;
  static int      pnset_add(pnset_t *, const char *);
  static int      pnset_check(const pnset_t *, const char *);
  static void     pnset_empty(pnset_t *);
  static void     pnset_free(pnset_t *);
  static int      checkpath(const char *, const struct stat *, int, struct FTW *);
*** 90,104 ****
--- 90,106 ----
  static const scm_t scms[] = {
          { "tw",         check_tw,       NULL            },
          { "teamware",   check_tw,       NULL            },
          { "hg",         check_hg,       chdir_hg        },
          { "mercurial",  check_hg,       chdir_hg        },
+         { "git",        check_git,      chdir_git       },
          { NULL,         NULL,           NULL            }
  };
  
  static const scm_t      *scm;
  static hgdata_t         hgdata;
+ static pnset_t          *gitmanifest = NULL;
  static time_t           tstamp;         /* timestamp to compare files to */
  static pnset_t          *exsetp;        /* pathname globs to ignore */
  static const char       *progname;
  
  int
*** 148,158 ****
          argc -= optind;
          argv += optind;
  
          if (argc != 2) {
  usage:          (void) fprintf(stderr, "usage: %s [-s <subtree>] "
!                     "[-t <tstampfile>] [-S hg|tw] <srcroot> <exceptfile>\n",
                      progname);
                  return (EXIT_FAILURE);
          }
  
          /*
--- 150,160 ----
          argc -= optind;
          argv += optind;
  
          if (argc != 2) {
  usage:          (void) fprintf(stderr, "usage: %s [-s <subtree>] "
!                     "[-t <tstampfile>] [-S hg|tw|git] <srcroot> <exceptfile>\n",
                      progname);
                  return (EXIT_FAILURE);
          }
  
          /*
*** 199,209 ****
          pnset_t *pnsetp;
          char    path[MAXPATHLEN];
  
          pnsetp = calloc(sizeof (pnset_t), 1);
          if (pnsetp == NULL ||
!             asprintf(&hgcmd, "/usr/bin/hg manifest -R %s", hgroot) == -1)
                  goto fail;
  
          fp = popen(hgcmd, "r");
          if (fp == NULL)
                  goto fail;
--- 201,211 ----
          pnset_t *pnsetp;
          char    path[MAXPATHLEN];
  
          pnsetp = calloc(sizeof (pnset_t), 1);
          if (pnsetp == NULL ||
!             asprintf(&hgcmd, "hg manifest -R %s", hgroot) == -1)
                  goto fail;
  
          fp = popen(hgcmd, "r");
          if (fp == NULL)
                  goto fail;
*** 227,236 ****
--- 229,277 ----
          free(hgcmd);
          pnset_free(pnsetp);
          return (NULL);
  }
  
+ static void
+ chdir_git(const char *path)
+ {
+         FILE *fp = NULL;
+         char *gitcmd = NULL;
+         char *newline;
+         char fn[MAXPATHLEN];
+         pnset_t *pnsetp;
+ 
+         pnsetp = calloc(sizeof (pnset_t), 1);
+         if ((pnsetp == NULL) ||
+             (asprintf(&gitcmd, "git ls-files %s", path) == -1))
+                 goto fail;
+ 
+         if ((fp = popen(gitcmd, "r")) == NULL)
+                 goto fail;
+ 
+         while (fgets(fn, sizeof (fn), fp) != NULL) {
+                 if ((newline = strrchr(fn, '\n')) != NULL)
+                         *newline = '\0';
+ 
+                 if (pnset_add(pnsetp, fn) == 0)
+                         goto fail;
+         }
+ 
+         (void) pclose(fp);
+         free(gitcmd);
+         gitmanifest = pnsetp;
+         return;
+ fail:
+         warn("cannot load git manifest");
+         if (fp != NULL)
+                 (void) pclose(fp);
+         if (pnsetp != NULL)
+                 free(pnsetp);
+         if (gitcmd != NULL)
+                 free(gitcmd);
+ }
+ 
  /*
   * If necessary, change our active manifest to be appropriate for `path'.
   */
  static void
  chdir_hg(const char *path)
*** 306,315 ****
--- 347,363 ----
           */
          path += hgdata.rootlen;
  
          return (hgdata.manifest != NULL && pnset_check(hgdata.manifest, path));
  }
+ /* ARGSUSED */
+ static int
+ check_git(const char *path, const struct FTW *ftwp)
+ {
+         path += 2;              /* Skip "./" */
+         return (gitmanifest != NULL && pnset_check(gitmanifest, path));
+ }
  
  /*
   * Check if a file is under TeamWare control by checking for its corresponding
   * SCCS "s-dot" file.
   */