diff options
Diffstat (limited to 'help.c')
| -rw-r--r-- | help.c | 174 |
1 files changed, 92 insertions, 82 deletions
@@ -3,28 +3,9 @@ #include "exec_cmd.h" #include "levenshtein.h" #include "help.h" - -/* most GUI terminals set COLUMNS (although some don't export it) */ -static int term_columns(void) -{ - char *col_string = getenv("COLUMNS"); - int n_cols; - - if (col_string && (n_cols = atoi(col_string)) > 0) - return n_cols; - -#ifdef TIOCGWINSZ - { - struct winsize ws; - if (!ioctl(1, TIOCGWINSZ, &ws)) { - if (ws.ws_col) - return ws.ws_col; - } - } -#endif - - return 80; -} +#include "common-cmds.h" +#include "string-list.h" +#include "column.h" void add_cmdname(struct cmdnames *cmds, const char *name, int len) { @@ -91,31 +72,25 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes) cmds->cnt = cj; } -static void pretty_print_string_list(struct cmdnames *cmds, int longest) +static void pretty_print_string_list(struct cmdnames *cmds, + unsigned int colopts) { - int cols = 1, rows; - int space = longest + 1; /* min 1 SP between words */ - int max_cols = term_columns() - 1; /* don't print *on* the edge */ - int i, j; - - if (space < max_cols) - cols = max_cols / space; - rows = DIV_ROUND_UP(cmds->cnt, cols); - - for (i = 0; i < rows; i++) { - printf(" "); + struct string_list list = STRING_LIST_INIT_NODUP; + struct column_options copts; + int i; - for (j = 0; j < cols; j++) { - int n = j * rows + i; - int size = space; - if (n >= cmds->cnt) - break; - if (j == cols-1 || n + rows >= cmds->cnt) - size = 1; - printf("%-*s", size, cmds->names[n]->name); - } - putchar('\n'); - } + for (i = 0; i < cmds->cnt; i++) + string_list_append(&list, cmds->names[i]->name); + /* + * always enable column display, we only consult column.* + * about layout strategy and stuff + */ + colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED; + memset(&copts, 0, sizeof(copts)); + copts.indent = " "; + copts.padding = 2; + print_columns(&list, colopts, &copts); + string_list_clear(&list, 0); } static int is_executable(const char *name) @@ -126,7 +101,10 @@ static int is_executable(const char *name) !S_ISREG(st.st_mode)) return 0; -#ifdef WIN32 +#if defined(WIN32) || defined(__CYGWIN__) +#if defined(__CYGWIN__) +if ((st.st_mode & S_IXUSR) == 0) +#endif { /* cannot trust the executable bit, peek into the file instead */ char buf[3] = { 0 }; int n; @@ -221,34 +199,21 @@ void load_command_list(const char *prefix, exclude_cmds(other_cmds, main_cmds); } -void list_commands(const char *title, struct cmdnames *main_cmds, - struct cmdnames *other_cmds) +void list_commands(unsigned int colopts, + struct cmdnames *main_cmds, struct cmdnames *other_cmds) { - int i, longest = 0; - - for (i = 0; i < main_cmds->cnt; i++) - if (longest < main_cmds->names[i]->len) - longest = main_cmds->names[i]->len; - for (i = 0; i < other_cmds->cnt; i++) - if (longest < other_cmds->names[i]->len) - longest = other_cmds->names[i]->len; - if (main_cmds->cnt) { const char *exec_path = git_exec_path(); - printf("available %s in '%s'\n", title, exec_path); - printf("----------------"); - mput_char('-', strlen(title) + strlen(exec_path)); + printf_ln(_("available git commands in '%s'"), exec_path); putchar('\n'); - pretty_print_string_list(main_cmds, longest); + pretty_print_string_list(main_cmds, colopts); putchar('\n'); } if (other_cmds->cnt) { - printf("%s available from elsewhere on your $PATH\n", title); - printf("---------------------------------------"); - mput_char('-', strlen(title)); + printf_ln(_("git commands available from elsewhere on your $PATH")); putchar('\n'); - pretty_print_string_list(other_cmds, longest); + pretty_print_string_list(other_cmds, colopts); putchar('\n'); } } @@ -298,7 +263,12 @@ static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old) } /* An empirically derived magic number */ -#define SIMILAR_ENOUGH(x) ((x) < 6) +#define SIMILARITY_FLOOR 7 +#define SIMILAR_ENOUGH(x) ((x) < SIMILARITY_FLOOR) + +static const char bad_interpreter_advice[] = + N_("'%s' appears to be a git command, but we were not\n" + "able to execute it. Maybe git-%s is broken?"); const char *help_unknown_cmd(const char *cmd) { @@ -319,42 +289,82 @@ const char *help_unknown_cmd(const char *cmd) sizeof(main_cmds.names), cmdname_compare); uniq(&main_cmds); - /* This reuses cmdname->len for similarity index */ - for (i = 0; i < main_cmds.cnt; ++i) + /* This abuses cmdname->len for levenshtein distance */ + for (i = 0, n = 0; i < main_cmds.cnt; i++) { + int cmp = 0; /* avoid compiler stupidity */ + const char *candidate = main_cmds.names[i]->name; + + /* + * An exact match means we have the command, but + * for some reason exec'ing it gave us ENOENT; probably + * it's a bad interpreter in the #! line. + */ + if (!strcmp(candidate, cmd)) + die(_(bad_interpreter_advice), cmd, cmd); + + /* Does the candidate appear in common_cmds list? */ + while (n < ARRAY_SIZE(common_cmds) && + (cmp = strcmp(common_cmds[n].name, candidate)) < 0) + n++; + if ((n < ARRAY_SIZE(common_cmds)) && !cmp) { + /* Yes, this is one of the common commands */ + n++; /* use the entry from common_cmds[] */ + if (!prefixcmp(candidate, cmd)) { + /* Give prefix match a very good score */ + main_cmds.names[i]->len = 0; + continue; + } + } + main_cmds.names[i]->len = - levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4); + levenshtein(cmd, candidate, 0, 2, 1, 3) + 1; + } qsort(main_cmds.names, main_cmds.cnt, sizeof(*main_cmds.names), levenshtein_compare); if (!main_cmds.cnt) - die ("Uh oh. Your system reports no Git commands at all."); - - best_similarity = main_cmds.names[0]->len; - n = 1; - while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len) - ++n; + die(_("Uh oh. Your system reports no Git commands at all.")); + + /* skip and count prefix matches */ + for (n = 0; n < main_cmds.cnt && !main_cmds.names[n]->len; n++) + ; /* still counting */ + + if (main_cmds.cnt <= n) { + /* prefix matches with everything? that is too ambiguous */ + best_similarity = SIMILARITY_FLOOR + 1; + } else { + /* count all the most similar ones */ + for (best_similarity = main_cmds.names[n++]->len; + (n < main_cmds.cnt && + best_similarity == main_cmds.names[n]->len); + n++) + ; /* still counting */ + } if (autocorrect && n == 1 && SIMILAR_ENOUGH(best_similarity)) { const char *assumed = main_cmds.names[0]->name; main_cmds.names[0] = NULL; clean_cmdnames(&main_cmds); - fprintf(stderr, "WARNING: You called a Git command named '%s', " - "which does not exist.\n" - "Continuing under the assumption that you meant '%s'\n", + fprintf_ln(stderr, + _("WARNING: You called a Git command named '%s', " + "which does not exist.\n" + "Continuing under the assumption that you meant '%s'"), cmd, assumed); if (autocorrect > 0) { - fprintf(stderr, "in %0.1f seconds automatically...\n", + fprintf_ln(stderr, _("in %0.1f seconds automatically..."), (float)autocorrect/10.0); poll(NULL, 0, autocorrect * 100); } return assumed; } - fprintf(stderr, "git: '%s' is not a git command. See 'git --help'.\n", cmd); + fprintf_ln(stderr, _("git: '%s' is not a git command. See 'git --help'."), cmd); if (SIMILAR_ENOUGH(best_similarity)) { - fprintf(stderr, "\nDid you mean %s?\n", - n < 2 ? "this": "one of these"); + fprintf_ln(stderr, + Q_("\nDid you mean this?", + "\nDid you mean one of these?", + n)); for (i = 0; i < n; i++) fprintf(stderr, "\t%s\n", main_cmds.names[i]->name); |