git.oblomov.eu Git - git/blob - notes-utils.c

   1 #include "cache.h"
   2 #include "commit.h"
   3 #include "refs.h"
   4 #include "notes-utils.h"
   5 #include "notes-merge.h" /* for create_notes_commit() */
   6
   7 void commit_notes(struct notes_tree *t, const char *msg)
   8 {
   9         struct strbuf buf = STRBUF_INIT;
  10         unsigned char commit_sha1[20];
  11
  12         if (!t)
  13                 t = &default_notes_tree;
  14         if (!t->initialized || !t->ref || !*t->ref)
  15                 die(_("Cannot commit uninitialized/unreferenced notes tree"));
  16         if (!t->dirty)
  17                 return; /* don't have to commit an unchanged tree */
  18
  19         /* Prepare commit message and reflog message */
  20         strbuf_addstr(&buf, msg);
  21         if (buf.buf[buf.len - 1] != '\n')
  22                 strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */
  23
  24         create_notes_commit(t, NULL, &buf, commit_sha1);
  25         strbuf_insert(&buf, 0, "notes: ", 7); /* commit message starts at index 7 */
  26         update_ref(buf.buf, t->ref, commit_sha1, NULL, 0, DIE_ON_ERR);
  27
  28         strbuf_release(&buf);
  29 }
  30
  31 static combine_notes_fn parse_combine_notes_fn(const char *v)
  32 {
  33         if (!strcasecmp(v, "overwrite"))
  34                 return combine_notes_overwrite;
  35         else if (!strcasecmp(v, "ignore"))
  36                 return combine_notes_ignore;
  37         else if (!strcasecmp(v, "concatenate"))
  38                 return combine_notes_concatenate;
  39         else if (!strcasecmp(v, "cat_sort_uniq"))
  40                 return combine_notes_cat_sort_uniq;
  41         else
  42                 return NULL;
  43 }
  44
  45 static int notes_rewrite_config(const char *k, const char *v, void *cb)
  46 {
  47         struct notes_rewrite_cfg *c = cb;
  48         if (!prefixcmp(k, "notes.rewrite.") && !strcmp(k+14, c->cmd)) {
  49                 c->enabled = git_config_bool(k, v);
  50                 return 0;
  51         } else if (!c->mode_from_env && !strcmp(k, "notes.rewritemode")) {
  52                 if (!v)
  53                         config_error_nonbool(k);
  54                 c->combine = parse_combine_notes_fn(v);
  55                 if (!c->combine) {
  56                         error(_("Bad notes.rewriteMode value: '%s'"), v);
  57                         return 1;
  58                 }
  59                 return 0;
  60         } else if (!c->refs_from_env && !strcmp(k, "notes.rewriteref")) {
  61                 /* note that a refs/ prefix is implied in the
  62                  * underlying for_each_glob_ref */
  63                 if (!prefixcmp(v, "refs/notes/"))
  64                         string_list_add_refs_by_glob(c->refs, v);
  65                 else
  66                         warning(_("Refusing to rewrite notes in %s"
  67                                 " (outside of refs/notes/)"), v);
  68                 return 0;
  69         }
  70
  71         return 0;
  72 }
  73
  74
  75 struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd)
  76 {
  77         struct notes_rewrite_cfg *c = xmalloc(sizeof(struct notes_rewrite_cfg));
  78         const char *rewrite_mode_env = getenv(GIT_NOTES_REWRITE_MODE_ENVIRONMENT);
  79         const char *rewrite_refs_env = getenv(GIT_NOTES_REWRITE_REF_ENVIRONMENT);
  80         c->cmd = cmd;
  81         c->enabled = 1;
  82         c->combine = combine_notes_concatenate;
  83         c->refs = xcalloc(1, sizeof(struct string_list));
  84         c->refs->strdup_strings = 1;
  85         c->refs_from_env = 0;
  86         c->mode_from_env = 0;
  87         if (rewrite_mode_env) {
  88                 c->mode_from_env = 1;
  89                 c->combine = parse_combine_notes_fn(rewrite_mode_env);
  90                 if (!c->combine)
  91                         /* TRANSLATORS: The first %s is the name of the
  92                            environment variable, the second %s is its value */
  93                         error(_("Bad %s value: '%s'"), GIT_NOTES_REWRITE_MODE_ENVIRONMENT,
  94                                         rewrite_mode_env);
  95         }
  96         if (rewrite_refs_env) {
  97                 c->refs_from_env = 1;
  98                 string_list_add_refs_from_colon_sep(c->refs, rewrite_refs_env);
  99         }
 100         git_config(notes_rewrite_config, c);
 101         if (!c->enabled || !c->refs->nr) {
 102                 string_list_clear(c->refs, 0);
 103                 free(c->refs);
 104                 free(c);
 105                 return NULL;
 106         }
 107         c->trees = load_notes_trees(c->refs);
 108         string_list_clear(c->refs, 0);
 109         free(c->refs);
 110         return c;
 111 }
 112
 113 int copy_note_for_rewrite(struct notes_rewrite_cfg *c,
 114                           const unsigned char *from_obj, const unsigned char *to_obj)
 115 {
 116         int ret = 0;
 117         int i;
 118         for (i = 0; c->trees[i]; i++)
 119                 ret = copy_note(c->trees[i], from_obj, to_obj, 1, c->combine) || ret;
 120         return ret;
 121 }
 122
 123 void finish_copy_notes_for_rewrite(struct notes_rewrite_cfg *c, const char *msg)
 124 {
 125         int i;
 126         for (i = 0; c->trees[i]; i++) {
 127                 commit_notes(c->trees[i], msg);
 128                 free_notes(c->trees[i]);
 129         }
 130         free(c->trees);
 131         free(c);
 132 }