Andrew's git - gitweb.git/blob

   1#include "builtin.h"
   2#include "cache.h"
   3#include "dir.h"
   4#include "parse-options.h"
   5#include "string-list.h"
   6#include "rerere.h"
   7#include "xdiff/xdiff.h"
   8#include "xdiff-interface.h"
   9#include "pathspec.h"
  10
  11static const char * const rerere_usage[] = {
  12        N_("git rerere [clear | forget <path>... | status | remaining | diff | gc]"),
  13        NULL,
  14};
  15
  16static int outf(void *dummy, mmbuffer_t *ptr, int nbuf)
  17{
  18        int i;
  19        for (i = 0; i < nbuf; i++)
  20                if (write_in_full(1, ptr[i].ptr, ptr[i].size) != ptr[i].size)
  21                        return -1;
  22        return 0;
  23}
  24
  25static int diff_two(const char *file1, const char *label1,
  26                const char *file2, const char *label2)
  27{
  28        xpparam_t xpp;
  29        xdemitconf_t xecfg;
  30        xdemitcb_t ecb;
  31        mmfile_t minus, plus;
  32
  33        if (read_mmfile(&minus, file1) || read_mmfile(&plus, file2))
  34                return 1;
  35
  36        printf("--- a/%s\n+++ b/%s\n", label1, label2);
  37        fflush(stdout);
  38        memset(&xpp, 0, sizeof(xpp));
  39        xpp.flags = 0;
  40        memset(&xecfg, 0, sizeof(xecfg));
  41        xecfg.ctxlen = 3;
  42        ecb.outf = outf;
  43        xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb);
  44
  45        free(minus.ptr);
  46        free(plus.ptr);
  47        return 0;
  48}
  49
  50int cmd_rerere(int argc, const char **argv, const char *prefix)
  51{
  52        struct string_list merge_rr = STRING_LIST_INIT_DUP;
  53        int i, autoupdate = -1, flags = 0;
  54
  55        struct option options[] = {
  56                OPT_SET_INT(0, "rerere-autoupdate", &autoupdate,
  57                        N_("register clean resolutions in index"), 1),
  58                OPT_END(),
  59        };
  60
  61        argc = parse_options(argc, argv, prefix, options, rerere_usage, 0);
  62
  63        git_config(git_xmerge_config, NULL);
  64
  65        if (autoupdate == 1)
  66                flags = RERERE_AUTOUPDATE;
  67        if (autoupdate == 0)
  68                flags = RERERE_NOAUTOUPDATE;
  69
  70        if (argc < 1)
  71                return rerere(flags);
  72
  73        if (!strcmp(argv[0], "forget")) {
  74                struct pathspec pathspec;
  75                if (argc < 2)
  76                        warning("'git rerere forget' without paths is deprecated");
  77                parse_pathspec(&pathspec, 0, PATHSPEC_PREFER_CWD,
  78                               prefix, argv + 1);
  79                return rerere_forget(&pathspec);
  80        }
  81
  82        if (!strcmp(argv[0], "clear")) {
  83                rerere_clear(&merge_rr);
  84        } else if (!strcmp(argv[0], "gc"))
  85                rerere_gc(&merge_rr);
  86        else if (!strcmp(argv[0], "status")) {
  87                if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0)
  88                        return 0;
  89                for (i = 0; i < merge_rr.nr; i++)
  90                        printf("%s\n", merge_rr.items[i].string);
  91        } else if (!strcmp(argv[0], "remaining")) {
  92                rerere_remaining(&merge_rr);
  93                for (i = 0; i < merge_rr.nr; i++) {
  94                        if (merge_rr.items[i].util != RERERE_RESOLVED)
  95                                printf("%s\n", merge_rr.items[i].string);
  96                        else
  97                                /* prepare for later call to
  98                                 * string_list_clear() */
  99                                merge_rr.items[i].util = NULL;
 100                }
 101        } else if (!strcmp(argv[0], "diff")) {
 102                if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0)
 103                        return 0;
 104                for (i = 0; i < merge_rr.nr; i++) {
 105                        const char *path = merge_rr.items[i].string;
 106                        const char *name = (const char *)merge_rr.items[i].util;
 107                        diff_two(rerere_path(name, "preimage"), path, path, path);
 108                }
 109        } else
 110                usage_with_options(rerere_usage, options);
 111
 112        string_list_clear(&merge_rr, 1);
 113        return 0;
 114}