| #include "git-compat-util.h" |
| #include "diff-merges.h" |
| |
| #include "gettext.h" |
| #include "revision.h" |
| |
| typedef void (*diff_merges_setup_func_t)(struct rev_info *); |
| static void set_separate(struct rev_info *revs); |
| |
| static diff_merges_setup_func_t set_to_default = set_separate; |
| static int suppress_m_parsing; |
| |
| static void suppress(struct rev_info *revs) |
| { |
| revs->separate_merges = 0; |
| revs->first_parent_merges = 0; |
| revs->combine_merges = 0; |
| revs->dense_combined_merges = 0; |
| revs->combined_all_paths = 0; |
| revs->merges_imply_patch = 0; |
| revs->merges_need_diff = 0; |
| revs->remerge_diff = 0; |
| } |
| |
| static void common_setup(struct rev_info *revs) |
| { |
| suppress(revs); |
| revs->merges_need_diff = 1; |
| } |
| |
| static void set_none(struct rev_info *revs) |
| { |
| suppress(revs); |
| } |
| |
| static void set_separate(struct rev_info *revs) |
| { |
| common_setup(revs); |
| revs->separate_merges = 1; |
| revs->simplify_history = 0; |
| } |
| |
| static void set_first_parent(struct rev_info *revs) |
| { |
| set_separate(revs); |
| revs->first_parent_merges = 1; |
| } |
| |
| static void set_combined(struct rev_info *revs) |
| { |
| common_setup(revs); |
| revs->combine_merges = 1; |
| revs->dense_combined_merges = 0; |
| } |
| |
| static void set_dense_combined(struct rev_info *revs) |
| { |
| common_setup(revs); |
| revs->combine_merges = 1; |
| revs->dense_combined_merges = 1; |
| } |
| |
| static void set_remerge_diff(struct rev_info *revs) |
| { |
| common_setup(revs); |
| revs->remerge_diff = 1; |
| revs->simplify_history = 0; |
| } |
| |
| static diff_merges_setup_func_t func_by_opt(const char *optarg) |
| { |
| if (!strcmp(optarg, "off") || !strcmp(optarg, "none")) |
| return set_none; |
| if (!strcmp(optarg, "1") || !strcmp(optarg, "first-parent")) |
| return set_first_parent; |
| if (!strcmp(optarg, "separate")) |
| return set_separate; |
| if (!strcmp(optarg, "c") || !strcmp(optarg, "combined")) |
| return set_combined; |
| if (!strcmp(optarg, "cc") || !strcmp(optarg, "dense-combined")) |
| return set_dense_combined; |
| if (!strcmp(optarg, "r") || !strcmp(optarg, "remerge")) |
| return set_remerge_diff; |
| if (!strcmp(optarg, "m") || !strcmp(optarg, "on")) |
| return set_to_default; |
| return NULL; |
| } |
| |
| static void set_diff_merges(struct rev_info *revs, const char *optarg) |
| { |
| diff_merges_setup_func_t func = func_by_opt(optarg); |
| |
| if (!func) |
| die(_("invalid value for '%s': '%s'"), "--diff-merges", optarg); |
| |
| func(revs); |
| } |
| |
| /* |
| * Public functions. They are in the order they are called. |
| */ |
| |
| int diff_merges_config(const char *value) |
| { |
| diff_merges_setup_func_t func = func_by_opt(value); |
| |
| if (!func) |
| return -1; |
| |
| set_to_default = func; |
| return 0; |
| } |
| |
| void diff_merges_suppress_m_parsing(void) |
| { |
| suppress_m_parsing = 1; |
| } |
| |
| int diff_merges_parse_opts(struct rev_info *revs, const char **argv) |
| { |
| int argcount = 1; |
| const char *optarg; |
| const char *arg = argv[0]; |
| |
| if (!suppress_m_parsing && !strcmp(arg, "-m")) { |
| set_to_default(revs); |
| revs->merges_need_diff = 0; |
| } else if (!strcmp(arg, "-c")) { |
| set_combined(revs); |
| revs->merges_imply_patch = 1; |
| } else if (!strcmp(arg, "--cc")) { |
| set_dense_combined(revs); |
| revs->merges_imply_patch = 1; |
| } else if (!strcmp(arg, "--remerge-diff")) { |
| set_remerge_diff(revs); |
| revs->merges_imply_patch = 1; |
| } else if (!strcmp(arg, "--no-diff-merges")) { |
| set_none(revs); |
| } else if (!strcmp(arg, "--combined-all-paths")) { |
| revs->combined_all_paths = 1; |
| } else if ((argcount = parse_long_opt("diff-merges", argv, &optarg))) { |
| set_diff_merges(revs, optarg); |
| } else |
| return 0; |
| |
| revs->explicit_diff_merges = 1; |
| return argcount; |
| } |
| |
| void diff_merges_suppress(struct rev_info *revs) |
| { |
| set_none(revs); |
| } |
| |
| void diff_merges_default_to_first_parent(struct rev_info *revs) |
| { |
| if (!revs->explicit_diff_merges) |
| revs->separate_merges = 1; |
| if (revs->separate_merges) |
| revs->first_parent_merges = 1; |
| } |
| |
| void diff_merges_default_to_dense_combined(struct rev_info *revs) |
| { |
| if (!revs->explicit_diff_merges) |
| set_dense_combined(revs); |
| } |
| |
| void diff_merges_set_dense_combined_if_unset(struct rev_info *revs) |
| { |
| if (!revs->combine_merges) |
| set_dense_combined(revs); |
| } |
| |
| void diff_merges_setup_revs(struct rev_info *revs) |
| { |
| if (revs->combine_merges == 0) |
| revs->dense_combined_merges = 0; |
| if (revs->separate_merges == 0) |
| revs->first_parent_merges = 0; |
| if (revs->combined_all_paths && !revs->combine_merges) |
| die("--combined-all-paths makes no sense without -c or --cc"); |
| if (revs->merges_imply_patch) |
| revs->diff = 1; |
| if (revs->merges_imply_patch || revs->merges_need_diff) { |
| if (!revs->diffopt.output_format) |
| revs->diffopt.output_format = DIFF_FORMAT_PATCH; |
| } |
| } |