Add color.ui variable which globally enables colorization if set

Signed-off-by: Matthias Kestenholz <mk@spinlock.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/config.txt b/Documentation/config.txt
index f2f6a774e044e03e78d83e4e77aedcff122f5688..7b676710bab0709970abe7411d2246c0eb2b34b8 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -489,6 +489,13 @@ color.status.<slot>::
 commit.template::
        Specify a file to use as the template for new commit messages.
 
+color.ui::
+       When set to `always`, always use colors in all git commands which
+       are capable of colored output. When false (or `never`), never. When
+       set to `true` or `auto`, use colors only when the output is to the
+       terminal. When more specific variables of color.* are set, they always
+       take precedence over this setting. Defaults to false.
+
 diff.autorefreshindex::
        When using `git diff` to compare with work tree
        files, do not consider stat-only change as changed.

diff --git a/builtin-branch.c b/builtin-branch.c
index e414c8898317736d632064d6c0545d7d128c6bc8..9edf2eb8162eb7214e1b4d76dca8949c63e72847 100644 (file)
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -31,7 +31,7 @@ static unsigned char head_sha1[20];
 
 static int branch_track = 1;
 
-static int branch_use_color;
+static int branch_use_color = -1;
 static char branch_colors[][COLOR_MAXLEN] = {
        "\033[m",       /* reset */
        "",             /* PLAIN (normal) */
@@ -79,12 +79,12 @@ static int git_branch_config(const char *var, const char *value)
                branch_track = git_config_bool(var, value);
                return 0;
        }
-       return git_default_config(var, value);
+       return git_color_default_config(var, value);
 }
 
 static const char *branch_get_color(enum color_branch ix)
 {
-       if (branch_use_color)
+       if (branch_use_color > 0)
                return branch_colors[ix];
        return "";
 }
@@ -588,6 +588,10 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
        };
 
        git_config(git_branch_config);
+
+       if (branch_use_color == -1)
+               branch_use_color = git_use_color_default;
+
        track = branch_track;
        argc = parse_options(argc, argv, options, builtin_branch_usage, 0);
        if (!!delete + !!rename + !!force_create > 1)

diff --git a/builtin-commit.c b/builtin-commit.c
index 6612b4f40504fea0cd9aec4463c20d8982bfbaeb..065e1f7b7fbf426210d08062800ed81448a30d4a 100644 (file)
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -7,6 +7,7 @@
 
 #include "cache.h"
 #include "cache-tree.h"
+#include "color.h"
 #include "dir.h"
 #include "builtin.h"
 #include "diff.h"
@@ -771,6 +772,9 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 
        git_config(git_status_config);
 
+       if (wt_status_use_color == -1)
+               wt_status_use_color = git_use_color_default;
+
        argc = parse_and_validate_options(argc, argv, builtin_status_usage);
 
        index_file = prepare_index(argc, argv, prefix);

diff --git a/builtin-diff.c b/builtin-diff.c
index 8d7a5697f2b429f6240a89e28422f48ef18aee3b..8f53f52dcbe74c1fdb6b7a54a8b250537bc821ee 100644 (file)
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -4,6 +4,7 @@
  * Copyright (c) 2006 Junio C Hamano
  */
 #include "cache.h"
+#include "color.h"
 #include "commit.h"
 #include "blob.h"
 #include "tag.h"
@@ -229,6 +230,10 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
 
        prefix = setup_git_directory_gently(&nongit);
        git_config(git_diff_ui_config);
+
+       if (diff_use_color_default == -1)
+               diff_use_color_default = git_use_color_default;
+
        init_revisions(&rev, prefix);
        rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index;
 

diff --git a/builtin-log.c b/builtin-log.c
index 99d69f079132ed67e2d5bc83bf95e6e60ba22f6f..f2216d3187735799d60ddd9b9a50c783fe338f2d 100644 (file)
--- a/builtin-log.c
+++ b/builtin-log.c
@@ -5,6 +5,7 @@
  *              2006 Junio Hamano
  */
 #include "cache.h"
+#include "color.h"
 #include "commit.h"
 #include "diff.h"
 #include "revision.h"
@@ -235,6 +236,10 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix)
        struct rev_info rev;
 
        git_config(git_log_config);
+
+       if (diff_use_color_default == -1)
+               diff_use_color_default = git_use_color_default;
+
        init_revisions(&rev, prefix);
        rev.diff = 1;
        rev.simplify_history = 0;
@@ -307,6 +312,10 @@ int cmd_show(int argc, const char **argv, const char *prefix)
        int i, count, ret = 0;
 
        git_config(git_log_config);
+
+       if (diff_use_color_default == -1)
+               diff_use_color_default = git_use_color_default;
+
        init_revisions(&rev, prefix);
        rev.diff = 1;
        rev.combine_merges = 1;
@@ -367,6 +376,10 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix)
        struct rev_info rev;
 
        git_config(git_log_config);
+
+       if (diff_use_color_default == -1)
+               diff_use_color_default = git_use_color_default;
+
        init_revisions(&rev, prefix);
        init_reflog_walk(&rev.reflog_info);
        rev.abbrev_commit = 1;
@@ -395,6 +408,10 @@ int cmd_log(int argc, const char **argv, const char *prefix)
        struct rev_info rev;
 
        git_config(git_log_config);
+
+       if (diff_use_color_default == -1)
+               diff_use_color_default = git_use_color_default;
+
        init_revisions(&rev, prefix);
        rev.always_show_header = 1;
        cmd_log_init(argc, argv, prefix, &rev);

diff --git a/color.c b/color.c
index cb70340420b6285786b988d4a98d2023a37d4ffc..12a6453f90eb4ce2b39f85762bf3acd1cff2b9f2 100644 (file)
--- a/color.c
+++ b/color.c
@@ -3,6 +3,8 @@
 
 #define COLOR_RESET "\033[m"
 
+int git_use_color_default = 0;
+
 static int parse_color(const char *name, int len)
 {
        static const char * const color_names[] = {
@@ -143,6 +145,16 @@ int git_config_colorbool(const char *var, const char *value, int stdout_is_tty)
        return 0;
 }
 
+int git_color_default_config(const char *var, const char *value)
+{
+       if (!strcmp(var, "color.ui")) {
+               git_use_color_default = git_config_colorbool(var, value, -1);
+               return 0;
+       }
+
+       return git_default_config(var, value);
+}
+
 static int color_vfprintf(FILE *fp, const char *color, const char *fmt,
                va_list args, const char *trail)
 {

diff --git a/color.h b/color.h
index ff63513d39b1553e65230ef98583549506670950..ecda5569a2cccabaf16fcf0aad3bce57dfb3aca4 100644 (file)
--- a/color.h
+++ b/color.h
@@ -4,6 +4,17 @@
 /* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
 #define COLOR_MAXLEN 24
 
+/*
+ * This variable stores the value of color.ui
+ */
+extern int git_use_color_default;
+
+
+/*
+ * Use this instead of git_default_config if you need the value of color.ui.
+ */
+int git_color_default_config(const char *var, const char *value);
+
 int git_config_colorbool(const char *var, const char *value, int stdout_is_tty);
 void color_parse(const char *var, const char *value, char *dst);
 int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);

diff --git a/diff.c b/diff.c
index 58fe7750f9ca7d63192164a3ac8da27553489d11..c30c252272d51f22e66ebf1b0c531f4bfa473651 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -20,7 +20,7 @@
 
 static int diff_detect_rename_default;
 static int diff_rename_limit_default = 100;
-static int diff_use_color_default;
+int diff_use_color_default = -1;
 static const char *external_diff_cmd_cfg;
 int diff_auto_refresh_index = 1;
 
@@ -191,7 +191,7 @@ int git_diff_basic_config(const char *var, const char *value)
                }
        }
 
-       return git_default_config(var, value);
+       return git_color_default_config(var, value);
 }
 
 static char *quote_two(const char *one, const char *two)
@@ -2055,7 +2055,7 @@ void diff_setup(struct diff_options *options)
 
        options->change = diff_change;
        options->add_remove = diff_addremove;
-       if (diff_use_color_default)
+       if (diff_use_color_default > 0)
                DIFF_OPT_SET(options, COLOR_DIFF);
        else
                DIFF_OPT_CLR(options, COLOR_DIFF);

diff --git a/diff.h b/diff.h
index 073d5cbf1ba97acf527770d912870cda01195489..8e73f07d7e35cd414c0f5cf347516e39921a7dd1 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -174,6 +174,7 @@ extern void diff_unmerge(struct diff_options *,
 
 extern int git_diff_basic_config(const char *var, const char *value);
 extern int git_diff_ui_config(const char *var, const char *value);
+extern int diff_use_color_default;
 extern void diff_setup(struct diff_options *);
 extern int diff_opt_parse(struct diff_options *, const char **, int);
 extern int diff_setup_done(struct diff_options *);

diff --git a/wt-status.c b/wt-status.c
index 0b060934e218f1d6fb95777ea7dd7faef1c2dd93..32d780af1e4f6e701f75d9759dfd4ebec56e6425 100644 (file)
--- a/wt-status.c
+++ b/wt-status.c
@@ -9,7 +9,7 @@
 #include "diffcore.h"
 
 int wt_status_relative_paths = 1;
-int wt_status_use_color = 0;
+int wt_status_use_color = -1;
 static char wt_status_colors[][COLOR_MAXLEN] = {
        "",         /* WT_STATUS_HEADER: normal */
        "\033[32m", /* WT_STATUS_UPDATED: green */
@@ -40,7 +40,7 @@ static int parse_status_slot(const char *var, int offset)
 
 static const char* color(int slot)
 {
-       return wt_status_use_color ? wt_status_colors[slot] : "";
+       return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
 }
 
 void wt_status_prepare(struct wt_status *s)
@@ -401,5 +401,5 @@ int git_status_config(const char *k, const char *v)
                wt_status_relative_paths = git_config_bool(k, v);
                return 0;
        }
-       return git_default_config(k, v);
+       return git_color_default_config(k, v);
 }