Joel Nothman <joel.noth...@gmail.com> writes:
> Git help --all had listed all git commands, but no configured aliases.
> This includes aliases as a separate listing, after commands in the main
> git directory and other $PATH directories.
... and why is this a good thing?
>
> Signed-off-by: Joel Nothman <joel.nothman <at> gmail.com>
> ---
> Documentation/git-help.txt | 4 +--
> builtin/help.c | 7 ++---
> help.c | 64
> +++++++++++++++++++++++++++++++++++-----------
> help.h | 7 ++++-
> 4 files changed, 61 insertions(+), 21 deletions(-)
>
> diff --git a/Documentation/git-help.txt b/Documentation/git-help.txt
> index b21e9d7..c9fe791 100644
> --- a/Documentation/git-help.txt
> +++ b/Documentation/git-help.txt
> @@ -40,8 +40,8 @@ OPTIONS
> -------
> -a::
> --all::
> - Prints all the available commands on the standard output. This
> - option overrides any given command or guide name.
> + Prints all the available commands and aliases on the standard output.
> + This option overrides any given command or guide name.
>
> -g::
> --guides::
> diff --git a/builtin/help.c b/builtin/help.c
> index 1fdefeb..d1dfecd 100644
> --- a/builtin/help.c
> +++ b/builtin/help.c
> @@ -38,7 +38,7 @@ static int show_guides = 0;
> static unsigned int colopts;
> static enum help_format help_format = HELP_FORMAT_NONE;
> static struct option builtin_help_options[] = {
> - OPT_BOOL('a', "all", &show_all, N_("print all available commands")),
> + OPT_BOOL('a', "all", &show_all, N_("print all available commands and
> aliases")),
> OPT_BOOL('g', "guides", &show_guides, N_("print list of useful
> guides")),
> OPT_SET_INT('m', "man", &help_format, N_("show man page"),
> HELP_FORMAT_MAN),
> OPT_SET_INT('w', "web", &help_format, N_("show manual in web browser"),
> @@ -453,6 +453,7 @@ int cmd_help(int argc, const char **argv, const char
> *prefix)
> int nongit;
> const char *alias;
> enum help_format parsed_help_format;
> + struct cmdnames alias_cmds;
>
> argc = parse_options(argc, argv, prefix, builtin_help_options,
> builtin_help_usage, 0);
> @@ -461,8 +462,8 @@ int cmd_help(int argc, const char **argv, const char
> *prefix)
> if (show_all) {
> git_config(git_help_config, NULL);
> printf(_("usage: %s%s"), _(git_usage_string), "\n\n");
> - load_command_list("git-", &main_cmds, &other_cmds);
> - list_commands(colopts, &main_cmds, &other_cmds);
> + load_commands_and_aliases("git-", &main_cmds, &other_cmds,
> &alias_cmds);
> + list_commands(colopts, &main_cmds, &other_cmds, &alias_cmds);
> }
>
> if (show_guides)
> diff --git a/help.c b/help.c
> index df7d16d..3c14af4 100644
> --- a/help.c
> +++ b/help.c
> @@ -86,7 +86,7 @@ static void pretty_print_string_list(struct cmdnames *cmds,
> int i;
>
> for (i = 0; i < cmds->cnt; i++)
> - string_list_append(&list, cmds->names[i]->name);
> + string_list_append(&list, cmds->names[i]->name);
> /*
> * always enable column display, we only consult column.*
> * about layout strategy and stuff
> @@ -202,8 +202,48 @@ void load_command_list(const char *prefix,
> exclude_cmds(other_cmds, main_cmds);
> }
>
> +static struct cmdnames aliases;
> +
> +static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
> +{
> + int i;
> + ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
> +
> + for (i = 0; i < old->cnt; i++)
> + cmds->names[cmds->cnt++] = old->names[i];
> + free(old->names);
> + old->cnt = 0;
> + old->names = NULL;
> +}
> +
> +static int load_aliases_cb(const char *var, const char *value, void *cb)
> +{
> + if (starts_with(var, "alias."))
> + add_cmdname(&aliases, var + 6, strlen(var + 6));
> + return 0;
> +}
> +
> +void load_commands_and_aliases(const char *prefix,
> + struct cmdnames *main_cmds,
> + struct cmdnames *other_cmds,
> + struct cmdnames *alias_cmds)
> +{
> + load_command_list(prefix, main_cmds, other_cmds);
> +
> + /* reuses global aliases from unknown command functionality */
> + git_config(load_aliases_cb, NULL);
> +
> + add_cmd_list(alias_cmds, &aliases);
> + qsort(alias_cmds->names, alias_cmds->cnt,
> + sizeof(*alias_cmds->names), cmdname_compare);
> + uniq(alias_cmds);
> + exclude_cmds(alias_cmds, main_cmds);
> + exclude_cmds(alias_cmds, other_cmds);
> +}
> +
> void list_commands(unsigned int colopts,
> - struct cmdnames *main_cmds, struct cmdnames *other_cmds)
> + struct cmdnames *main_cmds, struct cmdnames *other_cmds,
> + struct cmdnames *alias_cmds)
> {
> if (main_cmds->cnt) {
> const char *exec_path = git_exec_path();
> @@ -219,6 +259,13 @@ void list_commands(unsigned int colopts,
> pretty_print_string_list(other_cmds, colopts);
> putchar('\n');
> }
> +
> + if (alias_cmds->cnt) {
> + printf_ln(_("aliases defined in git configuration"));
> + putchar('\n');
> + pretty_print_string_list(alias_cmds, colopts);
> + putchar('\n');
> + }
> }
>
> void list_common_cmds_help(void)
> @@ -248,7 +295,6 @@ int is_in_cmdlist(struct cmdnames *c, const char *s)
> }
>
> static int autocorrect;
> -static struct cmdnames aliases;
>
> static int git_unknown_cmd_config(const char *var, const char *value, void
> *cb)
> {
> @@ -270,18 +316,6 @@ static int levenshtein_compare(const void *p1, const
> void *p2)
> return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
> }
>
> -static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
> -{
> - int i;
> - ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
> -
> - for (i = 0; i < old->cnt; i++)
> - cmds->names[cmds->cnt++] = old->names[i];
> - free(old->names);
> - old->cnt = 0;
> - old->names = NULL;
> -}
> -
> /* An empirically derived magic number */
> #define SIMILARITY_FLOOR 7
> #define SIMILAR_ENOUGH(x) ((x) < SIMILARITY_FLOOR)
> diff --git a/help.h b/help.h
> index b21d7c9..3939bc6 100644
> --- a/help.h
> +++ b/help.h
> @@ -21,11 +21,16 @@ extern const char *help_unknown_cmd(const char *cmd);
> extern void load_command_list(const char *prefix,
> struct cmdnames *main_cmds,
> struct cmdnames *other_cmds);
> +extern void load_commands_and_aliases(const char *prefix,
> + struct cmdnames *main_cmds,
> + struct cmdnames *other_cmds,
> + struct cmdnames *alias_cmds);
> extern void add_cmdname(struct cmdnames *cmds, const char *name, int len);
> /* Here we require that excludes is a sorted list. */
> extern void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes);
> extern int is_in_cmdlist(struct cmdnames *cmds, const char *name);
> -extern void list_commands(unsigned int colopts, struct cmdnames *main_cmds,
> struct cmdnames *other_cmds);
> +extern void list_commands(unsigned int colopts, struct cmdnames *main_cmds,
> + struct cmdnames *other_cmds, struct cmdnames
> *alias_cmds);
>
> /*
> * call this to die(), when it is suspected that the user mistyped a
--
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