зеркало из https://github.com/microsoft/git.git
Builtin git-help.
This patch splits out git-help's functions to builtin-help.c and leaves only functions used by other builtins in help.c. First this removes git-help's functions from libgit which are not interesting for other builtins, second this makes 'git help help' work again. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Miklos Vajna
Junio C Hamano
Родитель
6e4a86d2ed
Коммит
3d78d1f18f
3
Makefile
3
Makefile
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@ -519,6 +519,7 @@ BUILTIN_OBJS += builtin-for-each-ref.o
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BUILTIN_OBJS += builtin-fsck.o
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BUILTIN_OBJS += builtin-gc.o
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BUILTIN_OBJS += builtin-grep.o
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BUILTIN_OBJS += builtin-help.o
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BUILTIN_OBJS += builtin-init-db.o
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BUILTIN_OBJS += builtin-log.o
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BUILTIN_OBJS += builtin-ls-files.o
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@ -1085,7 +1086,7 @@ git$X: git.o $(BUILTIN_OBJS) $(GITLIBS)
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$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ git.o \
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$(BUILTIN_OBJS) $(ALL_LDFLAGS) $(LIBS)
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help.o: help.c common-cmds.h GIT-CFLAGS
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builtin-help.o: builtin-help.c common-cmds.h GIT-CFLAGS
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$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) \
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'-DGIT_HTML_PATH="$(htmldir_SQ)"' \
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'-DGIT_MAN_PATH="$(mandir_SQ)"' \
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@ -0,0 +1,462 @@
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/*
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* builtin-help.c
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*
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* Builtin help command
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*/
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#include "cache.h"
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#include "builtin.h"
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#include "exec_cmd.h"
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#include "common-cmds.h"
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#include "parse-options.h"
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#include "run-command.h"
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#include "help.h"
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static struct man_viewer_list {
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struct man_viewer_list *next;
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char name[FLEX_ARRAY];
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} *man_viewer_list;
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static struct man_viewer_info_list {
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struct man_viewer_info_list *next;
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const char *info;
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char name[FLEX_ARRAY];
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} *man_viewer_info_list;
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enum help_format {
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HELP_FORMAT_MAN,
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HELP_FORMAT_INFO,
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HELP_FORMAT_WEB,
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};
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static int show_all = 0;
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static enum help_format help_format = HELP_FORMAT_MAN;
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static struct option builtin_help_options[] = {
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OPT_BOOLEAN('a', "all", &show_all, "print all available commands"),
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OPT_SET_INT('m', "man", &help_format, "show man page", HELP_FORMAT_MAN),
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OPT_SET_INT('w', "web", &help_format, "show manual in web browser",
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HELP_FORMAT_WEB),
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OPT_SET_INT('i', "info", &help_format, "show info page",
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HELP_FORMAT_INFO),
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OPT_END(),
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};
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static const char * const builtin_help_usage[] = {
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"git help [--all] [--man|--web|--info] [command]",
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NULL
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};
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static enum help_format parse_help_format(const char *format)
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{
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if (!strcmp(format, "man"))
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return HELP_FORMAT_MAN;
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if (!strcmp(format, "info"))
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return HELP_FORMAT_INFO;
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if (!strcmp(format, "web") || !strcmp(format, "html"))
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return HELP_FORMAT_WEB;
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die("unrecognized help format '%s'", format);
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}
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static const char *get_man_viewer_info(const char *name)
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{
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struct man_viewer_info_list *viewer;
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for (viewer = man_viewer_info_list; viewer; viewer = viewer->next)
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{
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if (!strcasecmp(name, viewer->name))
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return viewer->info;
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}
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return NULL;
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}
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static int check_emacsclient_version(void)
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{
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struct strbuf buffer = STRBUF_INIT;
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struct child_process ec_process;
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const char *argv_ec[] = { "emacsclient", "--version", NULL };
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int version;
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/* emacsclient prints its version number on stderr */
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memset(&ec_process, 0, sizeof(ec_process));
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ec_process.argv = argv_ec;
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ec_process.err = -1;
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ec_process.stdout_to_stderr = 1;
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if (start_command(&ec_process)) {
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fprintf(stderr, "Failed to start emacsclient.\n");
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return -1;
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}
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strbuf_read(&buffer, ec_process.err, 20);
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close(ec_process.err);
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/*
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* Don't bother checking return value, because "emacsclient --version"
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* seems to always exits with code 1.
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*/
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finish_command(&ec_process);
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if (prefixcmp(buffer.buf, "emacsclient")) {
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fprintf(stderr, "Failed to parse emacsclient version.\n");
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strbuf_release(&buffer);
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return -1;
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}
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strbuf_remove(&buffer, 0, strlen("emacsclient"));
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version = atoi(buffer.buf);
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if (version < 22) {
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fprintf(stderr,
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"emacsclient version '%d' too old (< 22).\n",
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version);
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strbuf_release(&buffer);
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return -1;
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}
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strbuf_release(&buffer);
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return 0;
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}
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static void exec_woman_emacs(const char* path, const char *page)
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{
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if (!check_emacsclient_version()) {
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/* This works only with emacsclient version >= 22. */
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struct strbuf man_page = STRBUF_INIT;
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if (!path)
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path = "emacsclient";
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strbuf_addf(&man_page, "(woman \"%s\")", page);
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execlp(path, "emacsclient", "-e", man_page.buf, NULL);
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warning("failed to exec '%s': %s", path, strerror(errno));
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}
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}
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static void exec_man_konqueror(const char* path, const char *page)
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{
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const char *display = getenv("DISPLAY");
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if (display && *display) {
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struct strbuf man_page = STRBUF_INIT;
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const char *filename = "kfmclient";
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/* It's simpler to launch konqueror using kfmclient. */
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if (path) {
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const char *file = strrchr(path, '/');
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if (file && !strcmp(file + 1, "konqueror")) {
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char *new = xstrdup(path);
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char *dest = strrchr(new, '/');
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/* strlen("konqueror") == strlen("kfmclient") */
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strcpy(dest + 1, "kfmclient");
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path = new;
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}
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if (file)
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filename = file;
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} else
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path = "kfmclient";
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strbuf_addf(&man_page, "man:%s(1)", page);
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execlp(path, filename, "newTab", man_page.buf, NULL);
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warning("failed to exec '%s': %s", path, strerror(errno));
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}
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}
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static void exec_man_man(const char* path, const char *page)
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{
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if (!path)
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path = "man";
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execlp(path, "man", page, NULL);
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warning("failed to exec '%s': %s", path, strerror(errno));
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}
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static void exec_man_cmd(const char *cmd, const char *page)
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{
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struct strbuf shell_cmd = STRBUF_INIT;
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strbuf_addf(&shell_cmd, "%s %s", cmd, page);
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execl("/bin/sh", "sh", "-c", shell_cmd.buf, NULL);
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warning("failed to exec '%s': %s", cmd, strerror(errno));
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}
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static void add_man_viewer(const char *name)
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{
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struct man_viewer_list **p = &man_viewer_list;
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size_t len = strlen(name);
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while (*p)
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p = &((*p)->next);
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*p = xcalloc(1, (sizeof(**p) + len + 1));
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strncpy((*p)->name, name, len);
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}
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static int supported_man_viewer(const char *name, size_t len)
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{
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return (!strncasecmp("man", name, len) ||
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!strncasecmp("woman", name, len) ||
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!strncasecmp("konqueror", name, len));
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}
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static void do_add_man_viewer_info(const char *name,
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size_t len,
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const char *value)
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{
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struct man_viewer_info_list *new = xcalloc(1, sizeof(*new) + len + 1);
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strncpy(new->name, name, len);
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new->info = xstrdup(value);
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new->next = man_viewer_info_list;
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man_viewer_info_list = new;
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}
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static int add_man_viewer_path(const char *name,
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size_t len,
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const char *value)
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{
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if (supported_man_viewer(name, len))
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do_add_man_viewer_info(name, len, value);
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else
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warning("'%s': path for unsupported man viewer.\n"
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"Please consider using 'man.<tool>.cmd' instead.",
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name);
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return 0;
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}
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static int add_man_viewer_cmd(const char *name,
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size_t len,
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const char *value)
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{
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if (supported_man_viewer(name, len))
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warning("'%s': cmd for supported man viewer.\n"
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"Please consider using 'man.<tool>.path' instead.",
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name);
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else
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do_add_man_viewer_info(name, len, value);
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return 0;
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}
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static int add_man_viewer_info(const char *var, const char *value)
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{
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const char *name = var + 4;
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const char *subkey = strrchr(name, '.');
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if (!subkey)
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return error("Config with no key for man viewer: %s", name);
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if (!strcmp(subkey, ".path")) {
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if (!value)
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return config_error_nonbool(var);
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return add_man_viewer_path(name, subkey - name, value);
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}
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if (!strcmp(subkey, ".cmd")) {
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if (!value)
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return config_error_nonbool(var);
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return add_man_viewer_cmd(name, subkey - name, value);
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}
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warning("'%s': unsupported man viewer sub key.", subkey);
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return 0;
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}
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static int git_help_config(const char *var, const char *value, void *cb)
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{
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if (!strcmp(var, "help.format")) {
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if (!value)
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return config_error_nonbool(var);
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help_format = parse_help_format(value);
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return 0;
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}
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if (!strcmp(var, "man.viewer")) {
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if (!value)
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return config_error_nonbool(var);
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add_man_viewer(value);
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return 0;
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}
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if (!prefixcmp(var, "man."))
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return add_man_viewer_info(var, value);
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return git_default_config(var, value, cb);
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}
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struct cmdnames main_cmds, other_cmds;
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void list_common_cmds_help(void)
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{
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int i, longest = 0;
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for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
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if (longest < strlen(common_cmds[i].name))
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longest = strlen(common_cmds[i].name);
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}
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puts("The most commonly used git commands are:");
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for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
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printf(" %s ", common_cmds[i].name);
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mput_char(' ', longest - strlen(common_cmds[i].name));
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puts(common_cmds[i].help);
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}
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}
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static int is_git_command(const char *s)
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{
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return is_in_cmdlist(&main_cmds, s) ||
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is_in_cmdlist(&other_cmds, s);
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}
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static const char *prepend(const char *prefix, const char *cmd)
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{
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size_t pre_len = strlen(prefix);
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size_t cmd_len = strlen(cmd);
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char *p = xmalloc(pre_len + cmd_len + 1);
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memcpy(p, prefix, pre_len);
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strcpy(p + pre_len, cmd);
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return p;
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}
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static const char *cmd_to_page(const char *git_cmd)
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{
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if (!git_cmd)
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return "git";
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else if (!prefixcmp(git_cmd, "git"))
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return git_cmd;
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else if (is_git_command(git_cmd))
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return prepend("git-", git_cmd);
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else
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return prepend("git", git_cmd);
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}
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static void setup_man_path(void)
|
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{
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struct strbuf new_path;
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const char *old_path = getenv("MANPATH");
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strbuf_init(&new_path, 0);
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/* We should always put ':' after our path. If there is no
|
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* old_path, the ':' at the end will let 'man' to try
|
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* system-wide paths after ours to find the manual page. If
|
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* there is old_path, we need ':' as delimiter. */
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strbuf_addstr(&new_path, GIT_MAN_PATH);
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strbuf_addch(&new_path, ':');
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if (old_path)
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strbuf_addstr(&new_path, old_path);
|
||||
|
||||
setenv("MANPATH", new_path.buf, 1);
|
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|
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strbuf_release(&new_path);
|
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}
|
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|
||||
static void exec_viewer(const char *name, const char *page)
|
||||
{
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const char *info = get_man_viewer_info(name);
|
||||
|
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if (!strcasecmp(name, "man"))
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exec_man_man(info, page);
|
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else if (!strcasecmp(name, "woman"))
|
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exec_woman_emacs(info, page);
|
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else if (!strcasecmp(name, "konqueror"))
|
||||
exec_man_konqueror(info, page);
|
||||
else if (info)
|
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exec_man_cmd(info, page);
|
||||
else
|
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warning("'%s': unknown man viewer.", name);
|
||||
}
|
||||
|
||||
static void show_man_page(const char *git_cmd)
|
||||
{
|
||||
struct man_viewer_list *viewer;
|
||||
const char *page = cmd_to_page(git_cmd);
|
||||
|
||||
setup_man_path();
|
||||
for (viewer = man_viewer_list; viewer; viewer = viewer->next)
|
||||
{
|
||||
exec_viewer(viewer->name, page); /* will return when unable */
|
||||
}
|
||||
exec_viewer("man", page);
|
||||
die("no man viewer handled the request");
|
||||
}
|
||||
|
||||
static void show_info_page(const char *git_cmd)
|
||||
{
|
||||
const char *page = cmd_to_page(git_cmd);
|
||||
setenv("INFOPATH", GIT_INFO_PATH, 1);
|
||||
execlp("info", "info", "gitman", page, NULL);
|
||||
}
|
||||
|
||||
static void get_html_page_path(struct strbuf *page_path, const char *page)
|
||||
{
|
||||
struct stat st;
|
||||
const char *html_path = system_path(GIT_HTML_PATH);
|
||||
|
||||
/* Check that we have a git documentation directory. */
|
||||
if (stat(mkpath("%s/git.html", html_path), &st)
|
||||
|| !S_ISREG(st.st_mode))
|
||||
die("'%s': not a documentation directory.", html_path);
|
||||
|
||||
strbuf_init(page_path, 0);
|
||||
strbuf_addf(page_path, "%s/%s.html", html_path, page);
|
||||
}
|
||||
|
||||
/*
|
||||
* If open_html is not defined in a platform-specific way (see for
|
||||
* example compat/mingw.h), we use the script web--browse to display
|
||||
* HTML.
|
||||
*/
|
||||
#ifndef open_html
|
||||
void open_html(const char *path)
|
||||
{
|
||||
execl_git_cmd("web--browse", "-c", "help.browser", path, NULL);
|
||||
}
|
||||
#endif
|
||||
|
||||
static void show_html_page(const char *git_cmd)
|
||||
{
|
||||
const char *page = cmd_to_page(git_cmd);
|
||||
struct strbuf page_path; /* it leaks but we exec bellow */
|
||||
|
||||
get_html_page_path(&page_path, page);
|
||||
|
||||
open_html(page_path.buf);
|
||||
}
|
||||
|
||||
int cmd_help(int argc, const char **argv, const char *prefix)
|
||||
{
|
||||
int nongit;
|
||||
const char *alias;
|
||||
unsigned int longest = load_command_list("git-", &main_cmds, &other_cmds);
|
||||
|
||||
setup_git_directory_gently(&nongit);
|
||||
git_config(git_help_config, NULL);
|
||||
|
||||
argc = parse_options(argc, argv, builtin_help_options,
|
||||
builtin_help_usage, 0);
|
||||
|
||||
if (show_all) {
|
||||
printf("usage: %s\n\n", git_usage_string);
|
||||
list_commands("git commands", longest, &main_cmds, &other_cmds);
|
||||
printf("%s\n", git_more_info_string);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!argv[0]) {
|
||||
printf("usage: %s\n\n", git_usage_string);
|
||||
list_common_cmds_help();
|
||||
printf("\n%s\n", git_more_info_string);
|
||||
return 0;
|
||||
}
|
||||
|
||||
alias = alias_lookup(argv[0]);
|
||||
if (alias && !is_git_command(argv[0])) {
|
||||
printf("`git %s' is aliased to `%s'\n", argv[0], alias);
|
||||
return 0;
|
||||
}
|
||||
|
||||
switch (help_format) {
|
||||
case HELP_FORMAT_MAN:
|
||||
show_man_page(argv[0]);
|
||||
break;
|
||||
case HELP_FORMAT_INFO:
|
||||
show_info_page(argv[0]);
|
||||
break;
|
||||
case HELP_FORMAT_WEB:
|
||||
show_html_page(argv[0]);
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
464
help.c
464
help.c
|
|
@ -1,278 +1,8 @@
|
|||
/*
|
||||
* builtin-help.c
|
||||
*
|
||||
* Builtin help-related commands (help, usage, version)
|
||||
*/
|
||||
#include "cache.h"
|
||||
#include "builtin.h"
|
||||
#include "exec_cmd.h"
|
||||
#include "common-cmds.h"
|
||||
#include "parse-options.h"
|
||||
#include "run-command.h"
|
||||
#include "help.h"
|
||||
|
||||
static struct man_viewer_list {
|
||||
struct man_viewer_list *next;
|
||||
char name[FLEX_ARRAY];
|
||||
} *man_viewer_list;
|
||||
|
||||
static struct man_viewer_info_list {
|
||||
struct man_viewer_info_list *next;
|
||||
const char *info;
|
||||
char name[FLEX_ARRAY];
|
||||
} *man_viewer_info_list;
|
||||
|
||||
enum help_format {
|
||||
HELP_FORMAT_MAN,
|
||||
HELP_FORMAT_INFO,
|
||||
HELP_FORMAT_WEB,
|
||||
};
|
||||
|
||||
static int show_all = 0;
|
||||
static enum help_format help_format = HELP_FORMAT_MAN;
|
||||
static struct option builtin_help_options[] = {
|
||||
OPT_BOOLEAN('a', "all", &show_all, "print all available commands"),
|
||||
OPT_SET_INT('m', "man", &help_format, "show man page", HELP_FORMAT_MAN),
|
||||
OPT_SET_INT('w', "web", &help_format, "show manual in web browser",
|
||||
HELP_FORMAT_WEB),
|
||||
OPT_SET_INT('i', "info", &help_format, "show info page",
|
||||
HELP_FORMAT_INFO),
|
||||
OPT_END(),
|
||||
};
|
||||
|
||||
static const char * const builtin_help_usage[] = {
|
||||
"git help [--all] [--man|--web|--info] [command]",
|
||||
NULL
|
||||
};
|
||||
|
||||
static enum help_format parse_help_format(const char *format)
|
||||
{
|
||||
if (!strcmp(format, "man"))
|
||||
return HELP_FORMAT_MAN;
|
||||
if (!strcmp(format, "info"))
|
||||
return HELP_FORMAT_INFO;
|
||||
if (!strcmp(format, "web") || !strcmp(format, "html"))
|
||||
return HELP_FORMAT_WEB;
|
||||
die("unrecognized help format '%s'", format);
|
||||
}
|
||||
|
||||
static const char *get_man_viewer_info(const char *name)
|
||||
{
|
||||
struct man_viewer_info_list *viewer;
|
||||
|
||||
for (viewer = man_viewer_info_list; viewer; viewer = viewer->next)
|
||||
{
|
||||
if (!strcasecmp(name, viewer->name))
|
||||
return viewer->info;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int check_emacsclient_version(void)
|
||||
{
|
||||
struct strbuf buffer = STRBUF_INIT;
|
||||
struct child_process ec_process;
|
||||
const char *argv_ec[] = { "emacsclient", "--version", NULL };
|
||||
int version;
|
||||
|
||||
/* emacsclient prints its version number on stderr */
|
||||
memset(&ec_process, 0, sizeof(ec_process));
|
||||
ec_process.argv = argv_ec;
|
||||
ec_process.err = -1;
|
||||
ec_process.stdout_to_stderr = 1;
|
||||
if (start_command(&ec_process)) {
|
||||
fprintf(stderr, "Failed to start emacsclient.\n");
|
||||
return -1;
|
||||
}
|
||||
strbuf_read(&buffer, ec_process.err, 20);
|
||||
close(ec_process.err);
|
||||
|
||||
/*
|
||||
* Don't bother checking return value, because "emacsclient --version"
|
||||
* seems to always exits with code 1.
|
||||
*/
|
||||
finish_command(&ec_process);
|
||||
|
||||
if (prefixcmp(buffer.buf, "emacsclient")) {
|
||||
fprintf(stderr, "Failed to parse emacsclient version.\n");
|
||||
strbuf_release(&buffer);
|
||||
return -1;
|
||||
}
|
||||
|
||||
strbuf_remove(&buffer, 0, strlen("emacsclient"));
|
||||
version = atoi(buffer.buf);
|
||||
|
||||
if (version < 22) {
|
||||
fprintf(stderr,
|
||||
"emacsclient version '%d' too old (< 22).\n",
|
||||
version);
|
||||
strbuf_release(&buffer);
|
||||
return -1;
|
||||
}
|
||||
|
||||
strbuf_release(&buffer);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void exec_woman_emacs(const char* path, const char *page)
|
||||
{
|
||||
if (!check_emacsclient_version()) {
|
||||
/* This works only with emacsclient version >= 22. */
|
||||
struct strbuf man_page = STRBUF_INIT;
|
||||
|
||||
if (!path)
|
||||
path = "emacsclient";
|
||||
strbuf_addf(&man_page, "(woman \"%s\")", page);
|
||||
execlp(path, "emacsclient", "-e", man_page.buf, NULL);
|
||||
warning("failed to exec '%s': %s", path, strerror(errno));
|
||||
}
|
||||
}
|
||||
|
||||
static void exec_man_konqueror(const char* path, const char *page)
|
||||
{
|
||||
const char *display = getenv("DISPLAY");
|
||||
if (display && *display) {
|
||||
struct strbuf man_page = STRBUF_INIT;
|
||||
const char *filename = "kfmclient";
|
||||
|
||||
/* It's simpler to launch konqueror using kfmclient. */
|
||||
if (path) {
|
||||
const char *file = strrchr(path, '/');
|
||||
if (file && !strcmp(file + 1, "konqueror")) {
|
||||
char *new = xstrdup(path);
|
||||
char *dest = strrchr(new, '/');
|
||||
|
||||
/* strlen("konqueror") == strlen("kfmclient") */
|
||||
strcpy(dest + 1, "kfmclient");
|
||||
path = new;
|
||||
}
|
||||
if (file)
|
||||
filename = file;
|
||||
} else
|
||||
path = "kfmclient";
|
||||
strbuf_addf(&man_page, "man:%s(1)", page);
|
||||
execlp(path, filename, "newTab", man_page.buf, NULL);
|
||||
warning("failed to exec '%s': %s", path, strerror(errno));
|
||||
}
|
||||
}
|
||||
|
||||
static void exec_man_man(const char* path, const char *page)
|
||||
{
|
||||
if (!path)
|
||||
path = "man";
|
||||
execlp(path, "man", page, NULL);
|
||||
warning("failed to exec '%s': %s", path, strerror(errno));
|
||||
}
|
||||
|
||||
static void exec_man_cmd(const char *cmd, const char *page)
|
||||
{
|
||||
struct strbuf shell_cmd = STRBUF_INIT;
|
||||
strbuf_addf(&shell_cmd, "%s %s", cmd, page);
|
||||
execl("/bin/sh", "sh", "-c", shell_cmd.buf, NULL);
|
||||
warning("failed to exec '%s': %s", cmd, strerror(errno));
|
||||
}
|
||||
|
||||
static void add_man_viewer(const char *name)
|
||||
{
|
||||
struct man_viewer_list **p = &man_viewer_list;
|
||||
size_t len = strlen(name);
|
||||
|
||||
while (*p)
|
||||
p = &((*p)->next);
|
||||
*p = xcalloc(1, (sizeof(**p) + len + 1));
|
||||
strncpy((*p)->name, name, len);
|
||||
}
|
||||
|
||||
static int supported_man_viewer(const char *name, size_t len)
|
||||
{
|
||||
return (!strncasecmp("man", name, len) ||
|
||||
!strncasecmp("woman", name, len) ||
|
||||
!strncasecmp("konqueror", name, len));
|
||||
}
|
||||
|
||||
static void do_add_man_viewer_info(const char *name,
|
||||
size_t len,
|
||||
const char *value)
|
||||
{
|
||||
struct man_viewer_info_list *new = xcalloc(1, sizeof(*new) + len + 1);
|
||||
|
||||
strncpy(new->name, name, len);
|
||||
new->info = xstrdup(value);
|
||||
new->next = man_viewer_info_list;
|
||||
man_viewer_info_list = new;
|
||||
}
|
||||
|
||||
static int add_man_viewer_path(const char *name,
|
||||
size_t len,
|
||||
const char *value)
|
||||
{
|
||||
if (supported_man_viewer(name, len))
|
||||
do_add_man_viewer_info(name, len, value);
|
||||
else
|
||||
warning("'%s': path for unsupported man viewer.\n"
|
||||
"Please consider using 'man.<tool>.cmd' instead.",
|
||||
name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int add_man_viewer_cmd(const char *name,
|
||||
size_t len,
|
||||
const char *value)
|
||||
{
|
||||
if (supported_man_viewer(name, len))
|
||||
warning("'%s': cmd for supported man viewer.\n"
|
||||
"Please consider using 'man.<tool>.path' instead.",
|
||||
name);
|
||||
else
|
||||
do_add_man_viewer_info(name, len, value);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int add_man_viewer_info(const char *var, const char *value)
|
||||
{
|
||||
const char *name = var + 4;
|
||||
const char *subkey = strrchr(name, '.');
|
||||
|
||||
if (!subkey)
|
||||
return error("Config with no key for man viewer: %s", name);
|
||||
|
||||
if (!strcmp(subkey, ".path")) {
|
||||
if (!value)
|
||||
return config_error_nonbool(var);
|
||||
return add_man_viewer_path(name, subkey - name, value);
|
||||
}
|
||||
if (!strcmp(subkey, ".cmd")) {
|
||||
if (!value)
|
||||
return config_error_nonbool(var);
|
||||
return add_man_viewer_cmd(name, subkey - name, value);
|
||||
}
|
||||
|
||||
warning("'%s': unsupported man viewer sub key.", subkey);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int git_help_config(const char *var, const char *value, void *cb)
|
||||
{
|
||||
if (!strcmp(var, "help.format")) {
|
||||
if (!value)
|
||||
return config_error_nonbool(var);
|
||||
help_format = parse_help_format(value);
|
||||
return 0;
|
||||
}
|
||||
if (!strcmp(var, "man.viewer")) {
|
||||
if (!value)
|
||||
return config_error_nonbool(var);
|
||||
add_man_viewer(value);
|
||||
return 0;
|
||||
}
|
||||
if (!prefixcmp(var, "man."))
|
||||
return add_man_viewer_info(var, value);
|
||||
|
||||
return git_default_config(var, value, cb);
|
||||
}
|
||||
|
||||
/* most GUI terminals set COLUMNS (although some don't export it) */
|
||||
static int term_columns(void)
|
||||
{
|
||||
|
|
@ -295,14 +25,6 @@ static int term_columns(void)
|
|||
return 80;
|
||||
}
|
||||
|
||||
static inline void mput_char(char c, unsigned int num)
|
||||
{
|
||||
while(num--)
|
||||
putchar(c);
|
||||
}
|
||||
|
||||
struct cmdnames main_cmds, other_cmds;
|
||||
|
||||
void add_cmdname(struct cmdnames *cmds, const char *name, int len)
|
||||
{
|
||||
struct cmdname *ent = xmalloc(sizeof(*ent) + len + 1);
|
||||
|
|
@ -526,23 +248,6 @@ void list_commands(const char *title, unsigned int longest,
|
|||
}
|
||||
}
|
||||
|
||||
void list_common_cmds_help(void)
|
||||
{
|
||||
int i, longest = 0;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
|
||||
if (longest < strlen(common_cmds[i].name))
|
||||
longest = strlen(common_cmds[i].name);
|
||||
}
|
||||
|
||||
puts("The most commonly used git commands are:");
|
||||
for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
|
||||
printf(" %s ", common_cmds[i].name);
|
||||
mput_char(' ', longest - strlen(common_cmds[i].name));
|
||||
puts(common_cmds[i].help);
|
||||
}
|
||||
}
|
||||
|
||||
int is_in_cmdlist(struct cmdnames *c, const char *s)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -552,128 +257,6 @@ int is_in_cmdlist(struct cmdnames *c, const char *s)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int is_git_command(const char *s)
|
||||
{
|
||||
return is_in_cmdlist(&main_cmds, s) ||
|
||||
is_in_cmdlist(&other_cmds, s);
|
||||
}
|
||||
|
||||
static const char *prepend(const char *prefix, const char *cmd)
|
||||
{
|
||||
size_t pre_len = strlen(prefix);
|
||||
size_t cmd_len = strlen(cmd);
|
||||
char *p = xmalloc(pre_len + cmd_len + 1);
|
||||
memcpy(p, prefix, pre_len);
|
||||
strcpy(p + pre_len, cmd);
|
||||
return p;
|
||||
}
|
||||
|
||||
static const char *cmd_to_page(const char *git_cmd)
|
||||
{
|
||||
if (!git_cmd)
|
||||
return "git";
|
||||
else if (!prefixcmp(git_cmd, "git"))
|
||||
return git_cmd;
|
||||
else if (is_git_command(git_cmd))
|
||||
return prepend("git-", git_cmd);
|
||||
else
|
||||
return prepend("git", git_cmd);
|
||||
}
|
||||
|
||||
static void setup_man_path(void)
|
||||
{
|
||||
struct strbuf new_path;
|
||||
const char *old_path = getenv("MANPATH");
|
||||
|
||||
strbuf_init(&new_path, 0);
|
||||
|
||||
/* We should always put ':' after our path. If there is no
|
||||
* old_path, the ':' at the end will let 'man' to try
|
||||
* system-wide paths after ours to find the manual page. If
|
||||
* there is old_path, we need ':' as delimiter. */
|
||||
strbuf_addstr(&new_path, GIT_MAN_PATH);
|
||||
strbuf_addch(&new_path, ':');
|
||||
if (old_path)
|
||||
strbuf_addstr(&new_path, old_path);
|
||||
|
||||
setenv("MANPATH", new_path.buf, 1);
|
||||
|
||||
strbuf_release(&new_path);
|
||||
}
|
||||
|
||||
static void exec_viewer(const char *name, const char *page)
|
||||
{
|
||||
const char *info = get_man_viewer_info(name);
|
||||
|
||||
if (!strcasecmp(name, "man"))
|
||||
exec_man_man(info, page);
|
||||
else if (!strcasecmp(name, "woman"))
|
||||
exec_woman_emacs(info, page);
|
||||
else if (!strcasecmp(name, "konqueror"))
|
||||
exec_man_konqueror(info, page);
|
||||
else if (info)
|
||||
exec_man_cmd(info, page);
|
||||
else
|
||||
warning("'%s': unknown man viewer.", name);
|
||||
}
|
||||
|
||||
static void show_man_page(const char *git_cmd)
|
||||
{
|
||||
struct man_viewer_list *viewer;
|
||||
const char *page = cmd_to_page(git_cmd);
|
||||
|
||||
setup_man_path();
|
||||
for (viewer = man_viewer_list; viewer; viewer = viewer->next)
|
||||
{
|
||||
exec_viewer(viewer->name, page); /* will return when unable */
|
||||
}
|
||||
exec_viewer("man", page);
|
||||
die("no man viewer handled the request");
|
||||
}
|
||||
|
||||
static void show_info_page(const char *git_cmd)
|
||||
{
|
||||
const char *page = cmd_to_page(git_cmd);
|
||||
setenv("INFOPATH", GIT_INFO_PATH, 1);
|
||||
execlp("info", "info", "gitman", page, NULL);
|
||||
}
|
||||
|
||||
static void get_html_page_path(struct strbuf *page_path, const char *page)
|
||||
{
|
||||
struct stat st;
|
||||
const char *html_path = system_path(GIT_HTML_PATH);
|
||||
|
||||
/* Check that we have a git documentation directory. */
|
||||
if (stat(mkpath("%s/git.html", html_path), &st)
|
||||
|| !S_ISREG(st.st_mode))
|
||||
die("'%s': not a documentation directory.", html_path);
|
||||
|
||||
strbuf_init(page_path, 0);
|
||||
strbuf_addf(page_path, "%s/%s.html", html_path, page);
|
||||
}
|
||||
|
||||
/*
|
||||
* If open_html is not defined in a platform-specific way (see for
|
||||
* example compat/mingw.h), we use the script web--browse to display
|
||||
* HTML.
|
||||
*/
|
||||
#ifndef open_html
|
||||
void open_html(const char *path)
|
||||
{
|
||||
execl_git_cmd("web--browse", "-c", "help.browser", path, NULL);
|
||||
}
|
||||
#endif
|
||||
|
||||
static void show_html_page(const char *git_cmd)
|
||||
{
|
||||
const char *page = cmd_to_page(git_cmd);
|
||||
struct strbuf page_path; /* it leaks but we exec bellow */
|
||||
|
||||
get_html_page_path(&page_path, page);
|
||||
|
||||
open_html(page_path.buf);
|
||||
}
|
||||
|
||||
void help_unknown_cmd(const char *cmd)
|
||||
{
|
||||
fprintf(stderr, "git: '%s' is not a git-command. See 'git --help'.\n", cmd);
|
||||
|
|
@ -685,50 +268,3 @@ int cmd_version(int argc, const char **argv, const char *prefix)
|
|||
printf("git version %s\n", git_version_string);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cmd_help(int argc, const char **argv, const char *prefix)
|
||||
{
|
||||
int nongit;
|
||||
const char *alias;
|
||||
unsigned int longest = load_command_list("git-", &main_cmds, &other_cmds);
|
||||
|
||||
setup_git_directory_gently(&nongit);
|
||||
git_config(git_help_config, NULL);
|
||||
|
||||
argc = parse_options(argc, argv, builtin_help_options,
|
||||
builtin_help_usage, 0);
|
||||
|
||||
if (show_all) {
|
||||
printf("usage: %s\n\n", git_usage_string);
|
||||
list_commands("git commands", longest, &main_cmds, &other_cmds);
|
||||
printf("%s\n", git_more_info_string);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!argv[0]) {
|
||||
printf("usage: %s\n\n", git_usage_string);
|
||||
list_common_cmds_help();
|
||||
printf("\n%s\n", git_more_info_string);
|
||||
return 0;
|
||||
}
|
||||
|
||||
alias = alias_lookup(argv[0]);
|
||||
if (alias && !is_git_command(argv[0])) {
|
||||
printf("`git %s' is aliased to `%s'\n", argv[0], alias);
|
||||
return 0;
|
||||
}
|
||||
|
||||
switch (help_format) {
|
||||
case HELP_FORMAT_MAN:
|
||||
show_man_page(argv[0]);
|
||||
break;
|
||||
case HELP_FORMAT_INFO:
|
||||
show_info_page(argv[0]);
|
||||
break;
|
||||
case HELP_FORMAT_WEB:
|
||||
show_html_page(argv[0]);
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
6
help.h
6
help.h
|
|
@ -10,6 +10,12 @@ struct cmdnames {
|
|||
} **names;
|
||||
};
|
||||
|
||||
static inline void mput_char(char c, unsigned int num)
|
||||
{
|
||||
while(num--)
|
||||
putchar(c);
|
||||
}
|
||||
|
||||
unsigned int load_command_list(const char *prefix,
|
||||
struct cmdnames *main_cmds,
|
||||
struct cmdnames *other_cmds);
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче