diff options
Diffstat (limited to 'third_party/git/builtin/patch-id.c')
| -rw-r--r-- | third_party/git/builtin/patch-id.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/third_party/git/builtin/patch-id.c b/third_party/git/builtin/patch-id.c deleted file mode 100644 index 822ffff51fbd..000000000000 --- a/third_party/git/builtin/patch-id.c +++ /dev/null @@ -1,180 +0,0 @@ -#include "cache.h" -#include "builtin.h" -#include "config.h" -#include "diff.h" - -static void flush_current_id(int patchlen, struct object_id *id, struct object_id *result) -{ - if (patchlen) - printf("%s %s\n", oid_to_hex(result), oid_to_hex(id)); -} - -static int remove_space(char *line) -{ - char *src = line; - char *dst = line; - unsigned char c; - - while ((c = *src++) != '\0') { - if (!isspace(c)) - *dst++ = c; - } - return dst - line; -} - -static int scan_hunk_header(const char *p, int *p_before, int *p_after) -{ - static const char digits[] = "0123456789"; - const char *q, *r; - int n; - - q = p + 4; - n = strspn(q, digits); - if (q[n] == ',') { - q += n + 1; - n = strspn(q, digits); - } - if (n == 0 || q[n] != ' ' || q[n+1] != '+') - return 0; - - r = q + n + 2; - n = strspn(r, digits); - if (r[n] == ',') { - r += n + 1; - n = strspn(r, digits); - } - if (n == 0) - return 0; - - *p_before = atoi(q); - *p_after = atoi(r); - return 1; -} - -static int get_one_patchid(struct object_id *next_oid, struct object_id *result, - struct strbuf *line_buf, int stable) -{ - int patchlen = 0, found_next = 0; - int before = -1, after = -1; - git_hash_ctx ctx; - - the_hash_algo->init_fn(&ctx); - oidclr(result); - - while (strbuf_getwholeline(line_buf, stdin, '\n') != EOF) { - char *line = line_buf->buf; - const char *p = line; - int len; - - if (!skip_prefix(line, "diff-tree ", &p) && - !skip_prefix(line, "commit ", &p) && - !skip_prefix(line, "From ", &p) && - starts_with(line, "\\ ") && 12 < strlen(line)) - continue; - - if (!get_oid_hex(p, next_oid)) { - found_next = 1; - break; - } - - /* Ignore commit comments */ - if (!patchlen && !starts_with(line, "diff ")) - continue; - - /* Parsing diff header? */ - if (before == -1) { - if (starts_with(line, "index ")) - continue; - else if (starts_with(line, "--- ")) - before = after = 1; - else if (!isalpha(line[0])) - break; - } - - /* Looking for a valid hunk header? */ - if (before == 0 && after == 0) { - if (starts_with(line, "@@ -")) { - /* Parse next hunk, but ignore line numbers. */ - scan_hunk_header(line, &before, &after); - continue; - } - - /* Split at the end of the patch. */ - if (!starts_with(line, "diff ")) - break; - - /* Else we're parsing another header. */ - if (stable) - flush_one_hunk(result, &ctx); - before = after = -1; - } - - /* If we get here, we're inside a hunk. */ - if (line[0] == '-' || line[0] == ' ') - before--; - if (line[0] == '+' || line[0] == ' ') - after--; - - /* Compute the sha without whitespace */ - len = remove_space(line); - patchlen += len; - the_hash_algo->update_fn(&ctx, line, len); - } - - if (!found_next) - oidclr(next_oid); - - flush_one_hunk(result, &ctx); - - return patchlen; -} - -static void generate_id_list(int stable) -{ - struct object_id oid, n, result; - int patchlen; - struct strbuf line_buf = STRBUF_INIT; - - oidclr(&oid); - while (!feof(stdin)) { - patchlen = get_one_patchid(&n, &result, &line_buf, stable); - flush_current_id(patchlen, &oid, &result); - oidcpy(&oid, &n); - } - strbuf_release(&line_buf); -} - -static const char patch_id_usage[] = "git patch-id [--stable | --unstable]"; - -static int git_patch_id_config(const char *var, const char *value, void *cb) -{ - int *stable = cb; - - if (!strcmp(var, "patchid.stable")) { - *stable = git_config_bool(var, value); - return 0; - } - - return git_default_config(var, value, cb); -} - -int cmd_patch_id(int argc, const char **argv, const char *prefix) -{ - int stable = -1; - - git_config(git_patch_id_config, &stable); - - /* If nothing is set, default to unstable. */ - if (stable < 0) - stable = 0; - - if (argc == 2 && !strcmp(argv[1], "--stable")) - stable = 1; - else if (argc == 2 && !strcmp(argv[1], "--unstable")) - stable = 0; - else if (argc != 1) - usage(patch_id_usage); - - generate_id_list(stable); - return 0; -} |