diff options
Diffstat (limited to 'third_party/git/column.c')
-rw-r--r-- | third_party/git/column.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/third_party/git/column.c b/third_party/git/column.c deleted file mode 100644 index 1261e18a72e9..000000000000 --- a/third_party/git/column.c +++ /dev/null @@ -1,405 +0,0 @@ -#include "cache.h" -#include "config.h" -#include "column.h" -#include "string-list.h" -#include "parse-options.h" -#include "run-command.h" -#include "utf8.h" - -#define XY2LINEAR(d, x, y) (COL_LAYOUT((d)->colopts) == COL_COLUMN ? \ - (x) * (d)->rows + (y) : \ - (y) * (d)->cols + (x)) - -struct column_data { - const struct string_list *list; - unsigned int colopts; - struct column_options opts; - - int rows, cols; - int *len; /* cell length */ - int *width; /* index to the longest row in column */ -}; - -/* return length of 's' in letters, ANSI escapes stripped */ -static int item_length(const char *s) -{ - return utf8_strnwidth(s, -1, 1); -} - -/* - * Calculate cell width, rows and cols for a table of equal cells, given - * table width and how many spaces between cells. - */ -static void layout(struct column_data *data, int *width) -{ - int i; - - *width = 0; - for (i = 0; i < data->list->nr; i++) - if (*width < data->len[i]) - *width = data->len[i]; - - *width += data->opts.padding; - - data->cols = (data->opts.width - strlen(data->opts.indent)) / *width; - if (data->cols == 0) - data->cols = 1; - - data->rows = DIV_ROUND_UP(data->list->nr, data->cols); -} - -static void compute_column_width(struct column_data *data) -{ - int i, x, y; - for (x = 0; x < data->cols; x++) { - data->width[x] = XY2LINEAR(data, x, 0); - for (y = 0; y < data->rows; y++) { - i = XY2LINEAR(data, x, y); - if (i < data->list->nr && - data->len[data->width[x]] < data->len[i]) - data->width[x] = i; - } - } -} - -/* - * Shrink all columns by shortening them one row each time (and adding - * more columns along the way). Hopefully the longest cell will be - * moved to the next column, column is shrunk so we have more space - * for new columns. The process ends when the whole thing no longer - * fits in data->total_width. - */ -static void shrink_columns(struct column_data *data) -{ - REALLOC_ARRAY(data->width, data->cols); - while (data->rows > 1) { - int x, total_width, cols, rows; - rows = data->rows; - cols = data->cols; - - data->rows--; - data->cols = DIV_ROUND_UP(data->list->nr, data->rows); - if (data->cols != cols) - REALLOC_ARRAY(data->width, data->cols); - compute_column_width(data); - - total_width = strlen(data->opts.indent); - for (x = 0; x < data->cols; x++) { - total_width += data->len[data->width[x]]; - total_width += data->opts.padding; - } - if (total_width > data->opts.width) { - data->rows = rows; - data->cols = cols; - break; - } - } - compute_column_width(data); -} - -/* 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); -} - -/* Print a cell to stdout with all necessary leading/trailing space */ -static int display_cell(struct column_data *data, int initial_width, - const char *empty_cell, int x, int y) -{ - int i, len, newline; - - i = XY2LINEAR(data, x, y); - if (i >= data->list->nr) - return -1; - - len = data->len[i]; - if (data->width && data->len[data->width[x]] < initial_width) { - /* - * empty_cell has initial_width chars, if real column - * is narrower, increase len a bit so we fill less - * space. - */ - len += initial_width - data->len[data->width[x]]; - len -= data->opts.padding; - } - - if (COL_LAYOUT(data->colopts) == COL_COLUMN) - newline = i + data->rows >= data->list->nr; - else - newline = x == data->cols - 1 || i == data->list->nr - 1; - - printf("%s%s%s", - x == 0 ? data->opts.indent : "", - data->list->items[i].string, - newline ? data->opts.nl : empty_cell + len); - return 0; -} - -/* Display COL_COLUMN or COL_ROW */ -static void display_table(const struct string_list *list, - unsigned int colopts, - const struct column_options *opts) -{ - struct column_data data; - int x, y, i, initial_width; - char *empty_cell; - - memset(&data, 0, sizeof(data)); - data.list = list; - data.colopts = colopts; - data.opts = *opts; - - ALLOC_ARRAY(data.len, list->nr); - for (i = 0; i < list->nr; i++) - data.len[i] = item_length(list->items[i].string); - - layout(&data, &initial_width); - - if (colopts & COL_DENSE) - shrink_columns(&data); - - empty_cell = xmallocz(initial_width); - memset(empty_cell, ' ', initial_width); - for (y = 0; y < data.rows; y++) { - for (x = 0; x < data.cols; x++) - if (display_cell(&data, initial_width, empty_cell, x, y)) - break; - } - - free(data.len); - free(data.width); - free(empty_cell); -} - -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; - case COL_ROW: - case COL_COLUMN: - display_table(list, colopts, &nopts); - break; - default: - 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 || pager_in_use()) - *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 }, - { "column", COL_COLUMN, COL_LAYOUT_MASK }, - { "row", COL_ROW, COL_LAYOUT_MASK }, - { "dense", COL_DENSE, 0 }, - }; - int i; - - for (i = 0; i < ARRAY_SIZE(opts); i++) { - int set = 1, arg_len = len, name_len; - const char *arg_str = arg; - - if (!opts[i].mask) { - if (arg_len > 2 && !strncmp(arg_str, "no", 2)) { - arg_str += 2; - arg_len -= 2; - set = 0; - } - } - - 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; - else { - if (set) - *colopts |= opts[i].value; - else - *colopts &= ~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); - } - /* - * If none of "always", "never", and "auto" is specified, then setting - * layout implies "always". - * - * 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; - - if (!skip_prefix(var, "column.", &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; -} - -static int fd_out = -1; -static struct child_process column_process = CHILD_PROCESS_INIT; - -int run_column_filter(int colopts, const struct column_options *opts) -{ - struct strvec *argv; - - if (fd_out != -1) - return -1; - - child_process_init(&column_process); - argv = &column_process.args; - - strvec_push(argv, "column"); - strvec_pushf(argv, "--raw-mode=%d", colopts); - if (opts && opts->width) - strvec_pushf(argv, "--width=%d", opts->width); - if (opts && opts->indent) - strvec_pushf(argv, "--indent=%s", opts->indent); - if (opts && opts->padding) - strvec_pushf(argv, "--padding=%d", opts->padding); - - fflush(stdout); - column_process.in = -1; - column_process.out = dup(1); - column_process.git_cmd = 1; - - if (start_command(&column_process)) - return -2; - - fd_out = dup(1); - close(1); - dup2(column_process.in, 1); - close(column_process.in); - return 0; -} - -int stop_column_filter(void) -{ - if (fd_out == -1) - return -1; - - fflush(stdout); - close(1); - finish_command(&column_process); - dup2(fd_out, 1); - close(fd_out); - fd_out = -1; - return 0; -} |