"Force Charlie via GitGitGadget" <gitgitgad...@gmail.com> writes:

> From: Force Charlie <charli...@outlook.com>
>
> Signed-off-by: Force Charlie <charli...@outlook.com>
> ---
>  http.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/http.c b/http.c
> index 3dc8c560d6..99cb04faba 100644
> --- a/http.c
> +++ b/http.c
> @@ -48,6 +48,7 @@ char curl_errorstr[CURL_ERROR_SIZE];
>  
>  static int curl_ssl_verify = -1;
>  static int curl_ssl_try;
> +static int curl_http_version = 11;

Is there any reason that we need to have this variable's value to be
"int"?  I _think_ in this patch, the variable is used to choose
between the default and "HTTP/2", and I do not think the updated
code can choose any other new value that may be supported by an even
newer cURL library without further update, i.e. we'd need a variant of
"if the configuration asks HTTP/2 then use CURLOPT_HTTP_VERSION with
CURL_HTTP_VERSION_2" for the new choice.

So I'd think it would not add much value to force end users use a
rather cryptic "20" (vs "11") to choose between "2" and "1.1".  Why
not use spell it out, e.g. using the official name of the protocol
"HTTP/2" (vs "HTTP/1.1"), with a "const char *" instead?

The new configuration variable and the possible values it can take
must be documented, of course.  I think it would make the description
far less embarrassing if we say "HTTP/2" etc. rather than "20",
"11", etc.

> @@ -284,6 +285,10 @@ static void process_curl_messages(void)
>  
>  static int http_options(const char *var, const char *value, void *cb)
>  {
> +     if (!strcmp("http.version",var)) {
> +             curl_http_version=git_config_int(var,value);

STYLE.  Missing SP after comma, and around assignment.

> +             return 0;
> +     }
>       if (!strcmp("http.sslverify", var)) {
>               curl_ssl_verify = git_config_bool(var, value);
>               return 0;
> @@ -806,6 +811,13 @@ static CURL *get_curl_handle(void)
>               curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
>       }
>  
> +#if LIBCURL_VERSION_NUM >= 0x073100
> +     if(curl_http_version == 20){

STYLE. Missing SP before opening paren and after closing paren.

> +             /* CURL Enable HTTP2*/

STYLE. Missing SP before closing asterisk-slash.

> +             curl_easy_setopt(result, 
> CURLOPT_HTTP_VERSION,CURL_HTTP_VERSION_2);
> +     }
> +#endif

Shouldn't this block also handle the other values, e.g. "11"?

I _think_ the curl_http_version variable (be it an deci-int, or a
const char *) should be initialized to a value that you can use to
notice that the configuration did not specify any, and then this
part should become more like

        if (curl_http_version &&
            !get_curl_http_version_opt(curl_http_version, &opt))
                curl_easy_setopt(result, CURL_HTTP_VERSION, opt);

with a helper function like this:

static int get_curl_http_version_opt(const char *version_string, long *opt)
{               
        int i;
        static struct {
                const char *name;
                lnog opt_token;
        } choice[] = {
                { "HTTP/1.1", CURL_HTTP_VERSION_1_1 },
                { "HTTP/2", CURL_HTTP_VERSION_2 },
        };

        for (i = 0; i < ARRAY_SIZE(choice); i++) {
                if (!strcmp(version_string, choice[i].name)) {
                        *opt = choice[i].opt_token;
                        return 0;
                }
        }

        return -1; /* not found */
}

which would make it trivial to support new values later.

>  #if LIBCURL_VERSION_NUM >= 0x070907
>       curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
>  #endif

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