diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 34 |
1 files changed, 34 insertions, 0 deletions
@@ -36,6 +36,7 @@ static int diff_no_prefix; static int diff_stat_graph_width; static int diff_dirstat_permille_default = 30; static struct diff_options default_diff_options; +static long diff_algorithm; static char diff_colors[][COLOR_MAXLEN] = { GIT_COLOR_RESET, @@ -143,6 +144,21 @@ static int git_config_rename(const char *var, const char *value) return git_config_bool(var,value) ? DIFF_DETECT_RENAME : 0; } +long parse_algorithm_value(const char *value) +{ + if (!value) + return -1; + else if (!strcasecmp(value, "myers") || !strcasecmp(value, "default")) + return 0; + else if (!strcasecmp(value, "minimal")) + return XDF_NEED_MINIMAL; + else if (!strcasecmp(value, "patience")) + return XDF_PATIENCE_DIFF; + else if (!strcasecmp(value, "histogram")) + return XDF_HISTOGRAM_DIFF; + return -1; +} + /* * These are to give UI layer defaults. * The core-level commands such as git-diff-files should @@ -196,6 +212,13 @@ int git_diff_ui_config(const char *var, const char *value, void *cb) return 0; } + if (!strcmp(var, "diff.algorithm")) { + diff_algorithm = parse_algorithm_value(value); + if (diff_algorithm < 0) + return -1; + return 0; + } + if (git_color_config(var, value, cb) < 0) return -1; @@ -3163,6 +3186,7 @@ void diff_setup(struct diff_options *options) options->add_remove = diff_addremove; options->use_color = diff_use_color_default; options->detect_rename = diff_detect_rename_default; + options->xdl_opts |= diff_algorithm; if (diff_no_prefix) { options->a_prefix = options->b_prefix = ""; @@ -3560,6 +3584,16 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); else if (!strcmp(arg, "--histogram")) options->xdl_opts = DIFF_WITH_ALG(options, HISTOGRAM_DIFF); + else if (!prefixcmp(arg, "--diff-algorithm=")) { + long value = parse_algorithm_value(arg+17); + if (value < 0) + return error("option diff-algorithm accepts \"myers\", " + "\"minimal\", \"patience\" and \"histogram\""); + /* clear out previous settings */ + DIFF_XDL_CLR(options, NEED_MINIMAL); + options->xdl_opts &= ~XDF_DIFF_ALGORITHM_MASK; + options->xdl_opts |= value; + } /* flags options */ else if (!strcmp(arg, "--binary")) { |