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Consolidate and improve table implementations

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Implement both the VerbosePkgList and the summary message with the same
table.

Improve VerbosePkgList by caching attributes and cell's lengths instead
of recaculating them.

Right align every cell that containing a file size in both the
VerbosePkgList and the summary.

Simplify the printf statements and the alignment application.

Signed-off-by: Simon Gomizelj <simongmzlj@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Simon Gomizelj 2013-07-03 22:34:14 -04:00 committed by Allan McRae
parent dcb3b9f85f
commit 7b8f8753b1
1 changed files with 121 additions and 114 deletions
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235
src/pacman/util.c
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@ -47,9 +47,17 @@
#include "callback.h"
struct table_row_t {
const char *label;
off_t size;
struct table_cell_t {
char *label;
size_t len;
int mode;
};
enum {
CELL_NORMAL = 0,
CELL_TITLE = (1 << 0),
CELL_RIGHT_ALIGN = (1 << 1),
CELL_FREE = (1 << 3)
};
int trans_init(alpm_transflag_t flags, int check_valid)
@ -424,6 +432,58 @@ static size_t string_length(const char *s)
return len;
}
static void add_table_cell(alpm_list_t **row, char *label, int mode)
{
struct table_cell_t *cell = malloc(sizeof(struct table_cell_t));
cell->label = label;
cell->mode = mode;
cell->len = string_length(label);
*row = alpm_list_add(*row, cell);
}
static void table_free_cell(void *ptr)
{
struct table_cell_t *cell = ptr;
if(cell) {
if(cell->mode & CELL_FREE) {
free(cell->label);
}
free(cell);
}
}
static void table_free(alpm_list_t *headers, alpm_list_t *rows)
{
alpm_list_t *i;
alpm_list_free_inner(headers, table_free_cell);
for(i = rows; i; i = alpm_list_next(i)) {
alpm_list_free_inner(i->data, table_free_cell);
alpm_list_free(i->data);
}
alpm_list_free(headers);
alpm_list_free(rows);
}
static void add_transaction_sizes_row(alpm_list_t **rows, char *label, int size)
{
alpm_list_t *row = NULL;
char *str;
const char *units;
double s = humanize_size(size, 'M', 2, &units);
pm_asprintf(&str, "%.2f %s", s, units);
add_table_cell(&row, label, CELL_TITLE);
add_table_cell(&row, str, CELL_RIGHT_ALIGN | CELL_FREE);
*rows = alpm_list_add(*rows, row);
}
void string_display(const char *title, const char *string, unsigned short cols)
{
if(title) {
@ -442,43 +502,30 @@ void string_display(const char *title, const char *string, unsigned short cols)
static void table_print_line(const alpm_list_t *line, short col_padding,
size_t colcount, size_t *widths, int *has_data)
{
size_t i, lastcol = 0;
size_t i;
int need_padding = 0;
const alpm_list_t *curcell;
for(i = colcount; i > 0; i--) {
if(has_data[i - 1]) {
lastcol = i - 1;
break;
}
}
for(i = 0, curcell = line; curcell && i < colcount;
i++, curcell = alpm_list_next(curcell)) {
const char *value;
int cell_padding;
const struct table_cell_t *cell = curcell->data;
const char *str = (cell->label ? cell->label : "");
int cell_width;
if(!has_data[i]) {
continue;
}
value = curcell->data;
if(!value) {
value = "";
}
/* silly printf requires padding size to be an int */
cell_padding = (int)widths[i] - (int)string_length(value);
if(cell_padding < 0) {
cell_padding = 0;
}
cell_width = (cell->mode & CELL_RIGHT_ALIGN ? (int)widths[i] : -(int)widths[i]);
if(need_padding) {
printf("%*s", col_padding, "");
}
/* left-align all but the last column */
if(i != lastcol) {
printf("%s%*s", value, cell_padding, "");
if(cell->mode & CELL_TITLE) {
printf("%s%*s%s", config->colstr.title, cell_width, str, config->colstr.nocolor);
} else {
printf("%*s%s", cell_padding, "", value);
printf("%*s", cell_width, str);
}
need_padding = 1;
}
@ -487,7 +534,6 @@ static void table_print_line(const alpm_list_t *line, short col_padding,
}
/**
* Find the max string width of each column. Also determines whether values
* exist in the column and sets the value in has_data accordingly.
@ -522,7 +568,8 @@ static size_t table_calc_widths(const alpm_list_t *header,
}
/* header determines column count and initial values of longest_strs */
for(i = header, curcol = 0; i; i = alpm_list_next(i), curcol++) {
colwidths[curcol] = string_length(i->data);
const struct table_cell_t *row = i->data;
colwidths[curcol] = row->len;
/* note: header does not determine whether column has data */
}
@ -531,8 +578,8 @@ static size_t table_calc_widths(const alpm_list_t *header,
/* grab first column of each row and iterate through columns */
const alpm_list_t *j = i->data;
for(curcol = 0; j; j = alpm_list_next(j), curcol++) {
const char *str = j->data;
size_t str_len = string_length(str);
const struct table_cell_t *cell = j->data;
size_t str_len = cell ? cell->len : 0;
if(str_len > colwidths[curcol]) {
colwidths[curcol] = str_len;
@ -571,20 +618,24 @@ static size_t table_calc_widths(const alpm_list_t *header,
* @param cols the number of columns available in the terminal
* @return -1 if not enough terminal cols available, else 0
*/
static int table_display(const char *title, const alpm_list_t *header,
static int table_display(const alpm_list_t *header,
const alpm_list_t *rows, unsigned short cols)
{
const unsigned short padding = 2;
const alpm_list_t *i;
const alpm_list_t *i, *first;
size_t *widths = NULL, totalcols, totalwidth;
int *has_data = NULL;
if(rows == NULL || header == NULL) {
if(rows == NULL) {
return 0;
}
totalcols = alpm_list_count(header);
totalwidth = table_calc_widths(header, rows, padding, totalcols,
/* we want the first row. if no headers are provided, use the first
* entry of the rows array. */
first = header ? header : rows->data;
totalcols = alpm_list_count(first);
totalwidth = table_calc_widths(first, rows, padding, totalcols,
&widths, &has_data);
/* return -1 if terminal is not wide enough */
if(totalwidth > cols) {
@ -596,13 +647,11 @@ static int table_display(const char *title, const alpm_list_t *header,
return -1;
}
if(title != NULL) {
printf("%s\n\n", title);
if (header) {
table_print_line(header, padding, totalcols, widths, has_data);
printf("\n");
}
table_print_line(header, padding, totalcols, widths, has_data);
printf("\n");
for(i = rows; i; i = alpm_list_next(i)) {
table_print_line(i->data, padding, totalcols, widths, has_data);
}
@ -759,23 +808,20 @@ void signature_display(const char *title, alpm_siglist_t *siglist,
}
/* creates a header row for use with table_display */
static alpm_list_t *create_verbose_header(void)
static alpm_list_t *create_verbose_header(size_t count)
{
alpm_list_t *res = NULL;
char *str;
alpm_list_t *ret = NULL;
str = _("Name");
res = alpm_list_add(res, str);
str = _("Old Version");
res = alpm_list_add(res, str);
str = _("New Version");
res = alpm_list_add(res, str);
str = _("Net Change");
res = alpm_list_add(res, str);
str = _("Download Size");
res = alpm_list_add(res, str);
char *header;
pm_asprintf(&header, "%s (%zd)", _("Package"), count);
return res;
add_table_cell(&ret, header, CELL_TITLE | CELL_FREE);
add_table_cell(&ret, _("Old Version"), CELL_TITLE);
add_table_cell(&ret, _("New Version"), CELL_TITLE);
add_table_cell(&ret, _("Net Change"), CELL_TITLE);
add_table_cell(&ret, _("Download Size"), CELL_TITLE);
return ret;
}
/* returns package info as list of strings */
@ -798,23 +844,23 @@ static alpm_list_t *create_verbose_row(pm_target_t *target)
} else {
pm_asprintf(&str, "%s", alpm_pkg_get_name(target->remove));
}
ret = alpm_list_add(ret, str);
add_table_cell(&ret, str, CELL_NORMAL);
/* old and new versions */
pm_asprintf(&str, "%s",
target->remove != NULL ? alpm_pkg_get_version(target->remove) : "");
ret = alpm_list_add(ret, str);
add_table_cell(&ret, str, CELL_NORMAL);
pm_asprintf(&str, "%s",
target->install != NULL ? alpm_pkg_get_version(target->install) : "");
ret = alpm_list_add(ret, str);
add_table_cell(&ret, str, CELL_NORMAL);
/* and size */
size -= target->remove ? alpm_pkg_get_isize(target->remove) : 0;
size += target->install ? alpm_pkg_get_isize(target->install) : 0;
human_size = humanize_size(size, 'M', 2, &label);
pm_asprintf(&str, "%.2f %s", human_size, label);
ret = alpm_list_add(ret, str);
add_table_cell(&ret, str, CELL_RIGHT_ALIGN);
size = target->install ? alpm_pkg_download_size(target->install) : 0;
if(size != 0) {
@ -823,55 +869,18 @@ static alpm_list_t *create_verbose_row(pm_target_t *target)
} else {
str = NULL;
}
ret = alpm_list_add(ret, str);
add_table_cell(&ret, str, CELL_RIGHT_ALIGN);
return ret;
}
static void add_transaction_sizes_row(alpm_list_t **table, const char *label, off_t size)
{
struct table_row_t *row = malloc(sizeof(struct table_row_t));
row->label = label;
row->size = size;
*table = alpm_list_add(*table, row);
}
static void display_transaction_sizes(alpm_list_t *table)
{
alpm_list_t *i;
int max_len = 0;
for(i = table; i; i = alpm_list_next(i)) {
struct table_row_t *row = i->data;
int len = string_length(row->label);
if(len > max_len) {
max_len = len;
}
}
max_len += 2;
for(i = table; i; i = alpm_list_next(i)) {
struct table_row_t *row = i->data;
const char *units;
const colstr_t *colstr = &config->colstr;
double s = humanize_size(row->size, 'M', 2, &units);
printf("%s%-*s%s %.2f %s\n", colstr->title, max_len, row->label,
colstr->nocolor, s, units);
}
}
/* prepare a list of pkgs to display */
static void _display_targets(alpm_list_t *targets, int verbose)
{
char *str;
off_t isize = 0, rsize = 0, dlsize = 0;
unsigned short cols;
alpm_list_t *i, *rows = NULL, *names = NULL, *table = NULL;
alpm_list_t *i, *names = NULL, *header = NULL, *rows = NULL;
if(!targets) {
return;
@ -895,7 +904,10 @@ static void _display_targets(alpm_list_t *targets, int verbose)
for(i = targets; i; i = alpm_list_next(i)) {
pm_target_t *target = i->data;
rows = alpm_list_add(rows, create_verbose_row(target));
if(verbose) {
rows = alpm_list_add(rows, create_verbose_row(target));
}
if(target->install) {
pm_asprintf(&str, "%s-%s", alpm_pkg_get_name(target->install),
alpm_pkg_get_version(target->install));
@ -910,48 +922,43 @@ static void _display_targets(alpm_list_t *targets, int verbose)
}
/* print to screen */
pm_asprintf(&str, "%s (%zd):", _("Packages"), alpm_list_count(targets));
pm_asprintf(&str, "%s (%zd)", _("Packages"), alpm_list_count(targets));
printf("\n");
cols = getcols(fileno(stdout));
if(verbose) {
alpm_list_t *header = create_verbose_header();
if(table_display(str, header, rows, cols) != 0) {
header = create_verbose_header(alpm_list_count(targets));
if(table_display(header, rows, cols) != 0) {
/* fallback to list display if table wouldn't fit */
list_display(str, names, cols);
}
alpm_list_free(header);
} else {
list_display(str, names, cols);
}
printf("\n");
/* rows is a list of lists of strings, free inner lists here */
for(i = rows; i; i = alpm_list_next(i)) {
alpm_list_t *lp = i->data;
FREELIST(lp);
}
alpm_list_free(rows);
table_free(header, rows);
FREELIST(names);
free(str);
rows = NULL;
if(dlsize > 0 || config->op_s_downloadonly) {
add_transaction_sizes_row(&table, _("Total Download Size:"), dlsize);
add_transaction_sizes_row(&rows, _("Total Download Size:"), dlsize);
}
if(!config->op_s_downloadonly) {
if(isize > 0) {
add_transaction_sizes_row(&table, _("Total Installed Size:"), isize);
add_transaction_sizes_row(&rows, _("Total Installed Size:"), isize);
}
if(rsize > 0 && isize == 0) {
add_transaction_sizes_row(&table, _("Total Removed Size:"), rsize);
add_transaction_sizes_row(&rows, _("Total Removed Size:"), rsize);
}
/* only show this net value if different from raw installed size */
if(isize > 0 && rsize > 0) {
add_transaction_sizes_row(&table, _("Net Upgrade Size:"), isize - rsize);
add_transaction_sizes_row(&rows, _("Net Upgrade Size:"), isize - rsize);
}
}
display_transaction_sizes(table);
FREELIST(table);
table_display(NULL, rows, cols);
table_free(NULL, rows);
}
static int target_cmp(const void *p1, const void *p2)