diff options
Diffstat (limited to 'revision.c')
| -rw-r--r-- | revision.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/revision.c b/revision.c index 18f300d455..335f77fa98 100644 --- a/revision.c +++ b/revision.c @@ -2304,6 +2304,24 @@ static timestamp_t parse_age(const char *arg) return num; } +static void overwrite_argv(int *argc, const char **argv, + const char **value, + const struct setup_revision_opt *opt) +{ + /* + * Detect the case when we are overwriting ourselves. The assignment + * itself would be a noop either way, but this lets us avoid corner + * cases around the free() and NULL operations. + */ + if (*value != argv[*argc]) { + if (opt && opt->free_removed_argv_elements) + free((char *)argv[*argc]); + argv[*argc] = *value; + *value = NULL; + } + (*argc)++; +} + static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv, int *unkc, const char **unkv, const struct setup_revision_opt* opt) @@ -2325,7 +2343,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg starts_with(arg, "--branches=") || starts_with(arg, "--tags=") || starts_with(arg, "--remotes=") || starts_with(arg, "--no-walk=")) { - unkv[(*unkc)++] = arg; + overwrite_argv(unkc, unkv, &argv[0], opt); return 1; } @@ -2689,7 +2707,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg } else { int opts = diff_opt_parse(&revs->diffopt, argv, argc, revs->prefix); if (!opts) - unkv[(*unkc)++] = arg; + overwrite_argv(unkc, unkv, &argv[0], opt); return opts; } @@ -3001,7 +3019,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s if (!strcmp(arg, "--stdin")) { if (revs->disable_stdin) { - argv[left++] = arg; + overwrite_argv(&left, argv, &argv[i], opt); continue; } if (revs->read_from_stdin++) |