From: Nguyễn Thái Ngọc Duy Date: Sat, 21 Apr 2012 04:44:32 +0000 (+0700) Subject: Add column layout skeleton and git-column X-Git-Tag: v1.7.11-rc0~60^2~9 X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=7e29b8254f08af820b2f0c3770836638ffe517ab;p=git.git Add column layout skeleton and git-column A column option string consists of many token separated by either a space or a comma. A token belongs to one of three groups: - enabling: always, never and auto - layout mode: currently plain (which does not layout at all) - other future tuning flags git-column can be used to pipe output to from a command that wants column layout, but not to mess with its own output code. Simpler output code can be changed to use column layout code directly. Thanks-to: Ramsay Jones Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- diff --git a/.gitignore b/.gitignore index 87fcc5f6f..25402643f 100644 --- a/.gitignore +++ b/.gitignore @@ -26,6 +26,7 @@ /git-cherry-pick /git-clean /git-clone +/git-column /git-commit /git-commit-tree /git-config diff --git a/Documentation/config.txt b/Documentation/config.txt index e55dae180..9aabef124 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -836,6 +836,24 @@ color.ui:: `never` if you prefer git commands not to use color unless enabled explicitly with some other configuration or the `--color` option. +column.ui:: + Specify whether supported commands should output in columns. + This variable consists of a list of tokens separated by spaces + or commas: ++ +-- +`always`;; + always show in columns +`never`;; + never show in columns +`auto`;; + show in columns if the output is to the terminal +`plain`;; + show in one column +-- ++ + This option defaults to 'never'. + commit.status:: A boolean to enable/disable inclusion of status information in the commit message template when using an editor to prepare the commit diff --git a/Documentation/git-column.txt b/Documentation/git-column.txt new file mode 100644 index 000000000..9be16eea0 --- /dev/null +++ b/Documentation/git-column.txt @@ -0,0 +1,53 @@ +git-column(1) +============= + +NAME +---- +git-column - Display data in columns + +SYNOPSIS +-------- +[verse] +'git column' [--command=] [--[raw-]mode=] [--width=] + [--indent=] [--nl=] [--pading=] + +DESCRIPTION +----------- +This command formats its input into multiple columns. + +OPTIONS +------- +--command=:: + Look up layout mode using configuration variable column. and + column.ui. + +--mode=:: + Specify layout mode. See configuration variable column.ui for option + syntax. + +--raw-mode=:: + Same as --mode but take mode encoded as a number. This is mainly used + by other commands that have already parsed layout mode. + +--width=:: + Specify the terminal width. By default 'git column' will detect the + terminal width, or fall back to 80 if it is unable to do so. + +--indent=:: + String to be printed at the beginning of each line. + +--nl=:: + String to be printed at the end of each line, + including newline character. + +--padding=:: + The number of spaces between columns. One space by default. + + +Author +------ +Written by Nguyen Thai Ngoc Duy + +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Makefile b/Makefile index 1fb170531..b579b6b7d 100644 --- a/Makefile +++ b/Makefile @@ -646,6 +646,7 @@ LIB_OBJS += bulk-checkin.o LIB_OBJS += bundle.o LIB_OBJS += cache-tree.o LIB_OBJS += color.o +LIB_OBJS += column.o LIB_OBJS += combine-diff.o LIB_OBJS += commit.o LIB_OBJS += compat/obstack.o @@ -774,6 +775,7 @@ BUILTIN_OBJS += builtin/checkout-index.o BUILTIN_OBJS += builtin/checkout.o BUILTIN_OBJS += builtin/clean.o BUILTIN_OBJS += builtin/clone.o +BUILTIN_OBJS += builtin/column.o BUILTIN_OBJS += builtin/commit-tree.o BUILTIN_OBJS += builtin/commit.o BUILTIN_OBJS += builtin/config.o @@ -2166,6 +2168,7 @@ builtin/prune.o builtin/reflog.o reachable.o: reachable.h builtin/commit.o builtin/revert.o wt-status.o: wt-status.h builtin/tar-tree.o archive-tar.o: tar.h connect.o transport.o url.o http-backend.o: url.h +column.o help.o pager.o: column.h http-fetch.o http-walker.o remote-curl.o transport.o walker.o: walker.h http.o http-walker.o http-push.o http-fetch.o remote-curl.o: http.h url.h diff --git a/builtin.h b/builtin.h index 857b9c8aa..338f540e3 100644 --- a/builtin.h +++ b/builtin.h @@ -61,6 +61,7 @@ extern int cmd_cherry(int argc, const char **argv, const char *prefix); extern int cmd_cherry_pick(int argc, const char **argv, const char *prefix); extern int cmd_clone(int argc, const char **argv, const char *prefix); extern int cmd_clean(int argc, const char **argv, const char *prefix); +extern int cmd_column(int argc, const char **argv, const char *prefix); extern int cmd_commit(int argc, const char **argv, const char *prefix); extern int cmd_commit_tree(int argc, const char **argv, const char *prefix); extern int cmd_config(int argc, const char **argv, const char *prefix); diff --git a/builtin/column.c b/builtin/column.c new file mode 100644 index 000000000..5ea798a7c --- /dev/null +++ b/builtin/column.c @@ -0,0 +1,59 @@ +#include "builtin.h" +#include "cache.h" +#include "strbuf.h" +#include "parse-options.h" +#include "string-list.h" +#include "column.h" + +static const char * const builtin_column_usage[] = { + "git column [options]", + NULL +}; +static unsigned int colopts; + +static int column_config(const char *var, const char *value, void *cb) +{ + return git_column_config(var, value, cb, &colopts); +} + +int cmd_column(int argc, const char **argv, const char *prefix) +{ + struct string_list list = STRING_LIST_INIT_DUP; + struct strbuf sb = STRBUF_INIT; + struct column_options copts; + const char *command = NULL, *real_command = NULL; + struct option options[] = { + OPT_STRING(0, "command", &real_command, "name", "lookup config vars"), + OPT_COLUMN(0, "mode", &colopts, "layout to use"), + OPT_INTEGER(0, "raw-mode", &colopts, "layout to use"), + OPT_INTEGER(0, "width", &copts.width, "Maximum width"), + OPT_STRING(0, "indent", &copts.indent, "string", "Padding space on left border"), + OPT_INTEGER(0, "nl", &copts.nl, "Padding space on right border"), + OPT_INTEGER(0, "padding", &copts.padding, "Padding space between columns"), + OPT_END() + }; + + /* This one is special and must be the first one */ + if (argc > 1 && !prefixcmp(argv[1], "--command=")) { + command = argv[1] + 10; + git_config(column_config, (void *)command); + } else + git_config(column_config, NULL); + + memset(&copts, 0, sizeof(copts)); + copts.width = term_columns(); + copts.padding = 1; + argc = parse_options(argc, argv, "", options, builtin_column_usage, 0); + if (argc) + usage_with_options(builtin_column_usage, options); + if (real_command || command) { + if (!real_command || !command || strcmp(real_command, command)) + die(_("--command must be the first argument")); + } + finalize_colopts(&colopts, -1); + while (!strbuf_getline(&sb, stdin, '\n')) + string_list_append(&list, sb.buf); + + print_columns(&list, colopts, &copts); + return 0; +} diff --git a/column.c b/column.c new file mode 100644 index 000000000..3349f5855 --- /dev/null +++ b/column.c @@ -0,0 +1,169 @@ +#include "cache.h" +#include "column.h" +#include "string-list.h" +#include "parse-options.h" + +/* Display without layout when not enabled */ +static void display_plain(const struct string_list *list, + const char *indent, const char *nl) +{ + int i; + + for (i = 0; i < list->nr; i++) + printf("%s%s%s", indent, list->items[i].string, nl); +} + +void print_columns(const struct string_list *list, unsigned int colopts, + const struct column_options *opts) +{ + struct column_options nopts; + + if (!list->nr) + return; + assert((colopts & COL_ENABLE_MASK) != COL_AUTO); + + memset(&nopts, 0, sizeof(nopts)); + nopts.indent = opts && opts->indent ? opts->indent : ""; + nopts.nl = opts && opts->nl ? opts->nl : "\n"; + nopts.padding = opts ? opts->padding : 1; + nopts.width = opts && opts->width ? opts->width : term_columns() - 1; + if (!column_active(colopts)) { + display_plain(list, "", "\n"); + return; + } + switch (COL_LAYOUT(colopts)) { + case COL_PLAIN: + display_plain(list, nopts.indent, nopts.nl); + break; + default: + die("BUG: invalid layout mode %d", COL_LAYOUT(colopts)); + } +} + +int finalize_colopts(unsigned int *colopts, int stdout_is_tty) +{ + if ((*colopts & COL_ENABLE_MASK) == COL_AUTO) { + if (stdout_is_tty < 0) + stdout_is_tty = isatty(1); + *colopts &= ~COL_ENABLE_MASK; + if (stdout_is_tty) + *colopts |= COL_ENABLED; + } + return 0; +} + +struct colopt { + const char *name; + unsigned int value; + unsigned int mask; +}; + +#define LAYOUT_SET 1 +#define ENABLE_SET 2 + +static int parse_option(const char *arg, int len, unsigned int *colopts, + int *group_set) +{ + struct colopt opts[] = { + { "always", COL_ENABLED, COL_ENABLE_MASK }, + { "never", COL_DISABLED, COL_ENABLE_MASK }, + { "auto", COL_AUTO, COL_ENABLE_MASK }, + { "plain", COL_PLAIN, COL_LAYOUT_MASK }, + }; + int i; + + for (i = 0; i < ARRAY_SIZE(opts); i++) { + int arg_len = len, name_len; + const char *arg_str = arg; + + name_len = strlen(opts[i].name); + if (arg_len != name_len || + strncmp(arg_str, opts[i].name, name_len)) + continue; + + switch (opts[i].mask) { + case COL_ENABLE_MASK: + *group_set |= ENABLE_SET; + break; + case COL_LAYOUT_MASK: + *group_set |= LAYOUT_SET; + break; + } + + if (opts[i].mask) + *colopts = (*colopts & ~opts[i].mask) | opts[i].value; + return 0; + } + + return error("unsupported option '%s'", arg); +} + +static int parse_config(unsigned int *colopts, const char *value) +{ + const char *sep = " ,"; + int group_set = 0; + + while (*value) { + int len = strcspn(value, sep); + if (len) { + if (parse_option(value, len, colopts, &group_set)) + return -1; + + value += len; + } + value += strspn(value, sep); + } + /* + * Setting layout implies "always" if neither always, never + * nor auto is specified. + * + * Current value in COL_ENABLE_MASK is disregarded. This means if + * you set column.ui = auto and pass --column=row, then "auto" + * will become "always". + */ + if ((group_set & LAYOUT_SET) && !(group_set & ENABLE_SET)) + *colopts = (*colopts & ~COL_ENABLE_MASK) | COL_ENABLED; + return 0; +} + +static int column_config(const char *var, const char *value, + const char *key, unsigned int *colopts) +{ + if (!value) + return config_error_nonbool(var); + if (parse_config(colopts, value)) + return error("invalid column.%s mode %s", key, value); + return 0; +} + +int git_column_config(const char *var, const char *value, + const char *command, unsigned int *colopts) +{ + const char *it = skip_prefix(var, "column."); + if (!it) + return 0; + + if (!strcmp(it, "ui")) + return column_config(var, value, "ui", colopts); + + if (command && !strcmp(it, command)) + return column_config(var, value, it, colopts); + + return 0; +} + +int parseopt_column_callback(const struct option *opt, + const char *arg, int unset) +{ + unsigned int *colopts = opt->value; + *colopts |= COL_PARSEOPT; + *colopts &= ~COL_ENABLE_MASK; + if (unset) /* --no-column == never */ + return 0; + /* --column == always unless "arg" states otherwise */ + *colopts |= COL_ENABLED; + if (arg) + return parse_config(colopts, arg); + + return 0; +} diff --git a/column.h b/column.h new file mode 100644 index 000000000..b8719b397 --- /dev/null +++ b/column.h @@ -0,0 +1,38 @@ +#ifndef COLUMN_H +#define COLUMN_H + +#define COL_LAYOUT_MASK 0x000F +#define COL_ENABLE_MASK 0x0030 /* always, never or auto */ +#define COL_PARSEOPT 0x0040 /* --column is given from cmdline */ + +#define COL_DISABLED 0x0000 /* must be zero */ +#define COL_ENABLED 0x0010 +#define COL_AUTO 0x0020 + +#define COL_LAYOUT(c) ((c) & COL_LAYOUT_MASK) +#define COL_PLAIN 15 /* one column */ + +#define explicitly_enable_column(c) \ + (((c) & COL_PARSEOPT) && column_active(c)) + +struct column_options { + int width; + int padding; + const char *indent; + const char *nl; +}; + +struct option; +extern int parseopt_column_callback(const struct option *, const char *, int); +extern int git_column_config(const char *var, const char *value, + const char *command, unsigned int *colopts); +extern int finalize_colopts(unsigned int *colopts, int stdout_is_tty); +static inline int column_active(unsigned int colopts) +{ + return (colopts & COL_ENABLE_MASK) == COL_ENABLED; +} + +extern void print_columns(const struct string_list *list, unsigned int colopts, + const struct column_options *opts); + +#endif diff --git a/command-list.txt b/command-list.txt index a36ee9b01..fe06f158f 100644 --- a/command-list.txt +++ b/command-list.txt @@ -20,6 +20,7 @@ git-cherry-pick mainporcelain git-citool mainporcelain git-clean mainporcelain git-clone mainporcelain common +git-column purehelpers git-commit mainporcelain common git-commit-tree plumbingmanipulators git-config ancillarymanipulators diff --git a/git.c b/git.c index 380561663..ee727cbe1 100644 --- a/git.c +++ b/git.c @@ -348,6 +348,7 @@ static void handle_internal_command(int argc, const char **argv) { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, { "clone", cmd_clone }, + { "column", cmd_column, RUN_SETUP_GENTLY }, { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, { "commit-tree", cmd_commit_tree, RUN_SETUP }, { "config", cmd_config, RUN_SETUP_GENTLY }, diff --git a/parse-options.h b/parse-options.h index 2e811dc7d..56fcafda5 100644 --- a/parse-options.h +++ b/parse-options.h @@ -238,5 +238,7 @@ extern int parse_opt_noop_cb(const struct option *, const char *, int); PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 } #define OPT__COLOR(var, h) \ OPT_COLOR_FLAG(0, "color", (var), (h)) +#define OPT_COLUMN(s, l, v, h) \ + { OPTION_CALLBACK, (s), (l), (v), "style", (h), PARSE_OPT_OPTARG, parseopt_column_callback } #endif diff --git a/t/t9002-column.sh b/t/t9002-column.sh new file mode 100755 index 000000000..a7f3cd928 --- /dev/null +++ b/t/t9002-column.sh @@ -0,0 +1,45 @@ +#!/bin/sh + +test_description='git column' +. ./test-lib.sh + +test_expect_success 'setup' ' + cat >lista <<\EOF +one +two +three +four +five +six +seven +eight +nine +ten +eleven +EOF +' + +test_expect_success 'never' ' + git column --indent=Z --mode=never actual && + test_cmp lista actual +' + +test_expect_success 'always' ' + cat >expected <<\EOF && +Zone +Ztwo +Zthree +Zfour +Zfive +Zsix +Zseven +Zeight +Znine +Zten +Zeleven +EOF + git column --indent=Z --mode=plain actual && + test_cmp expected actual +' + +test_done