(wrong-type-argument number-or-marker-p nil) in gh-url-response-init because url-http-end-of-headers does not seem to be properly available

[colonelpanic8]

Here is a full traceback:

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  #f(compiled-function (resp buffer) #<bytecode 0x1f9363d>)(#<gh-api-paged-response gh-api-paged-response> #<buffer  *http api.github.com:443*>)
  apply(#f(compiled-function (resp buffer) #<bytecode 0x1f9363d>) (#<gh-api-paged-response gh-api-paged-response> #<buffer  *http api.github.com:443*>))
  #f(compiled-function (cl-cnm resp buffer) #<bytecode 0x1da4aed>)(#f(compiled-function (&rest cnm-args) #<bytecode 0x2109df5>) #<gh-api-paged-response gh-api-paged-response> #<buffer  *http api.github.com:443*>)
  apply(#f(compiled-function (cl-cnm resp buffer) #<bytecode 0x1da4aed>) #f(compiled-function (&rest cnm-args) #<bytecode 0x2109df5>) (#<gh-api-paged-response gh-api-paged-response> #<buffer  *http api.github.com:443*>))
  #f(compiled-function (&rest args) #<bytecode 0x195bfa1>)(#<gh-api-paged-response gh-api-paged-response> #<buffer  *http api.github.com:443*>)
  apply(#f(compiled-function (&rest args) #<bytecode 0x195bfa1>) #<gh-api-paged-response gh-api-paged-response> #<buffer  *http api.github.com:443*>)
  gh-url-response-init(#<gh-api-paged-response gh-api-paged-response> #<buffer  *http api.github.com:443*>)
  gh-url-set-response(nil (#<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>))
  #f(compiled-function (req &optional resp) #<bytecode 0x221e4a1>)(#<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>)
  apply(#f(compiled-function (req &optional resp) #<bytecode 0x221e4a1>) (#<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>))
  #f(compiled-function (cl-cnm req &optional resp) #<bytecode 0x1cd4041>)(#f(compiled-function (&rest cnm-args) #<bytecode 0x2250935>) #<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>)
  apply(#f(compiled-function (cl-cnm req &optional resp) #<bytecode 0x1cd4041>) #f(compiled-function (&rest cnm-args) #<bytecode 0x2250935>) (#<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>))
  #f(compiled-function (&rest args) #<bytecode 0x1cff1d9>)(#<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>)
  apply(#f(compiled-function (&rest args) #<bytecode 0x1cff1d9>) #<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>)
  gh-url-run-request(#<gh-api-paged-request gh-api-paged-request> #<gh-api-paged-response gh-api-paged-response>)
  #f(compiled-function (api transformer method resource &optional data params page-limit) #<bytecode 0x1ccf4f9>)(#<gh-search-api gh-search-api> #f(compiled-function (&rest args2) #<bytecode 0x22507f1>) "GET" "/search/repositories" nil ((q . "lens")) 1)
  apply(#f(compiled-function (api transformer method resource &optional data params page-limit) #<bytecode 0x1ccf4f9>) (#<gh-search-api gh-search-api> #f(compiled-function (&rest args2) #<bytecode 0x22507f1>) "GET" "/search/repositories" nil ((q . "lens")) 1))
  #f(compiled-function (cl-cnm api transformer method resource &optional data params page-limit) #<bytecode 0x135fde5>)(#f(compiled-function (&rest cnm-args) #<bytecode 0x225080d>) #<gh-search-api gh-search-api> #f(compiled-function (&rest args2) #<bytecode 0x22507f1>) "GET" "/search/repositories" nil ((q . "lens")) 1)
  apply(#f(compiled-function (cl-cnm api transformer method resource &optional data params page-limit) #<bytecode 0x135fde5>) #f(compiled-function (&rest cnm-args) #<bytecode 0x225080d>) (#<gh-search-api gh-search-api> #f(compiled-function (&rest args2) #<bytecode 0x22507f1>) "GET" "/search/repositories" nil ((q . "lens")) 1))
  #f(compiled-function (&rest args) #<bytecode 0x225731d>)(#<gh-search-api gh-search-api> #f(compiled-function (&rest args2) #<bytecode 0x22507f1>) "GET" "/search/repositories" nil ((q . "lens")) 1)
  apply(#f(compiled-function (&rest args) #<bytecode 0x225731d>) #<gh-search-api gh-search-api> (#f(compiled-function (&rest args2) #<bytecode 0x22507f1>) "GET" "/search/repositories" nil ((q . "lens")) 1))
  gh-api-authenticated-request(#<gh-search-api gh-search-api> #f(compiled-function (&rest args2) #<bytecode 0x22507f1>) "GET" "/search/repositories" nil ((q . "lens")) 1)
  #f(compiled-function (search-api query-string &optional page-limit &rest additional-arguments) #<bytecode 0x19586a9>)(#<gh-search-api gh-search-api> "lens" 1)
  apply(#f(compiled-function (search-api query-string &optional page-limit &rest additional-arguments) #<bytecode 0x19586a9>) (#<gh-search-api gh-search-api> "lens" 1))
  #f(compiled-function (cl-cnm search-api query-string &optional page-limit &rest additional-arguments) #<bytecode 0x1c211d1>)(#f(compiled-function (&rest cnm-args) #<bytecode 0x2250799>) #<gh-search-api gh-search-api> "lens" 1)
  apply(#f(compiled-function (cl-cnm search-api query-string &optional page-limit &rest additional-arguments) #<bytecode 0x1c211d1>) #f(compiled-function (&rest cnm-args) #<bytecode 0x2250799>) (#<gh-search-api gh-search-api> "lens" 1))
  #f(compiled-function (&rest args) #<bytecode 0x2257245>)(#<gh-search-api gh-search-api> "lens" 1)
  apply(#f(compiled-function (&rest args) #<bytecode 0x2257245>) #<gh-search-api gh-search-api> ("lens" 1))
  gh-search-repos(#<gh-search-api gh-search-api> "lens" 1)
  github-search-for-completion("lens" 1)
  github-search-clone-repo("lens")
  funcall-interactively(github-search-clone-repo "lens")
  call-interactively(github-search-clone-repo record nil)
  command-execute(github-search-clone-repo record)
  helm-M-x(nil #("github-search-clone-repo" 0 24 (match-part "github-search-clone-repo")))
  funcall-interactively(helm-M-x nil #("github-search-clone-repo" 0 24 (match-part "github-search-clone-repo")))
  call-interactively(helm-M-x nil nil)
  command-execute(helm-M-x)

Can't say I fully understand what is going on, but it seems that gh is expecting the url-http-end-of-headers variable to be populated, but this isn't happening for some reason.

[colonelpanic8]

Possibly related to magit/ghub#81

[colonelpanic8]

Wow, this is really strange. When I use edebug to break in
url-http-wait-for-headers-change-function, which is where url-http-end-of-headers seems to get set, the issue magically goes away for me. This is getting to the limits of my emacs fu, and seems like it could be an issue with emacs itself and the weird sort of variable being used for url-http-end-of-headers

[colonelpanic8]

Ahh, magit/ghub#81 (comment) seems to explain why this is the case. "Adding sleeps before the point where we send the http request consisntently fixes the issue for me"

[colonelpanic8]

Okay, so here is the bug report we should look at: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34341

[colonelpanic8]

For now setting

(setq gnutls-algorithm-priority "NORMAL:-VERS-TLS1.3")

fixes the issue. This should get fixed in newer versions of emacs though.

[vv111y]

Thank You @IvanMalison , this was not easy to find.