what do lines starting with double-slash '//' mean in a .npmrc?










1















I'd naively assumed that .npmrc lines with double slash ('//') indicate a comment, but that's clearly not the case, because when I delete them, I'm unable to publish to my local registry.



Example:





registry=https://npm.myregistry.io/
//email=me@mydomain.com
//npm.myregistry.io/:_authToken="Pgwb34F123EQdHqE7OoZA=="


If I remove the above // lines, publish results in



npm ERR! code ENEEDAUTH
npm ERR! need auth auth required for publishing
npm ERR! need auth You need to authorize this machine using `npm adduser`


I can't find any reference to this syntax in npmrc documentation or the ini module parser documentation. I'm assuming it has something to do with synthesized properties?










share|improve this question




























    1















    I'd naively assumed that .npmrc lines with double slash ('//') indicate a comment, but that's clearly not the case, because when I delete them, I'm unable to publish to my local registry.



    Example:





    registry=https://npm.myregistry.io/
    //email=me@mydomain.com
    //npm.myregistry.io/:_authToken="Pgwb34F123EQdHqE7OoZA=="


    If I remove the above // lines, publish results in



    npm ERR! code ENEEDAUTH
    npm ERR! need auth auth required for publishing
    npm ERR! need auth You need to authorize this machine using `npm adduser`


    I can't find any reference to this syntax in npmrc documentation or the ini module parser documentation. I'm assuming it has something to do with synthesized properties?










    share|improve this question


























      1












      1








      1


      1






      I'd naively assumed that .npmrc lines with double slash ('//') indicate a comment, but that's clearly not the case, because when I delete them, I'm unable to publish to my local registry.



      Example:





      registry=https://npm.myregistry.io/
      //email=me@mydomain.com
      //npm.myregistry.io/:_authToken="Pgwb34F123EQdHqE7OoZA=="


      If I remove the above // lines, publish results in



      npm ERR! code ENEEDAUTH
      npm ERR! need auth auth required for publishing
      npm ERR! need auth You need to authorize this machine using `npm adduser`


      I can't find any reference to this syntax in npmrc documentation or the ini module parser documentation. I'm assuming it has something to do with synthesized properties?










      share|improve this question
















      I'd naively assumed that .npmrc lines with double slash ('//') indicate a comment, but that's clearly not the case, because when I delete them, I'm unable to publish to my local registry.



      Example:





      registry=https://npm.myregistry.io/
      //email=me@mydomain.com
      //npm.myregistry.io/:_authToken="Pgwb34F123EQdHqE7OoZA=="


      If I remove the above // lines, publish results in



      npm ERR! code ENEEDAUTH
      npm ERR! need auth auth required for publishing
      npm ERR! need auth You need to authorize this machine using `npm adduser`


      I can't find any reference to this syntax in npmrc documentation or the ini module parser documentation. I'm assuming it has something to do with synthesized properties?







      node.js npm






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 13 '18 at 12:58









      Josh Lee

      119k26214241




      119k26214241










      asked Nov 12 '18 at 18:15









      Jolly RogerJolly Roger

      2,57121719




      2,57121719






















          1 Answer
          1






          active

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          2














          // has no special meaning in .npmrc or any other .ini file.



          The ini syntax is key = value. So in this case the key is //npm.myregistry.io/:_authToken.



          This is a Protocol-relative URL, meaning an URL that will take the protocol automatically from the current page (you can actually type //google.com in the browser, and it should take you to https://google.com)



          Note that this may not necessarily be the URL used by npm for authentication. It's just a format chosen by the developers to hold the authToken (or other values) in the same string with the registry URL.






          share|improve this answer




















          • 1





            Good explanation @mihai. However, why is the key name //npm.myregistry.io/:_authToken instead of npm.myregistry.io/:_authToken (i.e. without // prefix)? Why use a Protocol-relative URL for a key name in this context of a .npmrc? Seems to me that a Protocol-relative URL would make more sense as a value and not a key.

            – RobC
            Nov 13 '18 at 14:18






          • 1





            For me, when typing //google.com in the browser (FF, Safari, and Chrome) it resolves to file:////google.com

            – RobC
            Nov 13 '18 at 14:25






          • 1





            @RobC it probably has to do with the internal logic of npm. What's stored in the .npmrc is not necessarily the URL used for authentification, it's just a way to hold the authToken in a format that also contains the registry URL. Here is where the token is read in the source code.

            – mihai
            Nov 13 '18 at 14:38






          • 1





            Thanks for feedback. In the docs for .npmrc it says files are parsed by npm/ini. However I couldn't find any obvious indication of how // is parsed in the source code and it's many RegExp's.

            – RobC
            Nov 13 '18 at 14:50






          • 1





            Ok, protocol-relative URLs are plausible, except that other entries also have a // that don't seem to be URIs, i.e. in my example above, there's //email=

            – Jolly Roger
            Nov 15 '18 at 0:45











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          1 Answer
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          active

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          2














          // has no special meaning in .npmrc or any other .ini file.



          The ini syntax is key = value. So in this case the key is //npm.myregistry.io/:_authToken.



          This is a Protocol-relative URL, meaning an URL that will take the protocol automatically from the current page (you can actually type //google.com in the browser, and it should take you to https://google.com)



          Note that this may not necessarily be the URL used by npm for authentication. It's just a format chosen by the developers to hold the authToken (or other values) in the same string with the registry URL.






          share|improve this answer




















          • 1





            Good explanation @mihai. However, why is the key name //npm.myregistry.io/:_authToken instead of npm.myregistry.io/:_authToken (i.e. without // prefix)? Why use a Protocol-relative URL for a key name in this context of a .npmrc? Seems to me that a Protocol-relative URL would make more sense as a value and not a key.

            – RobC
            Nov 13 '18 at 14:18






          • 1





            For me, when typing //google.com in the browser (FF, Safari, and Chrome) it resolves to file:////google.com

            – RobC
            Nov 13 '18 at 14:25






          • 1





            @RobC it probably has to do with the internal logic of npm. What's stored in the .npmrc is not necessarily the URL used for authentification, it's just a way to hold the authToken in a format that also contains the registry URL. Here is where the token is read in the source code.

            – mihai
            Nov 13 '18 at 14:38






          • 1





            Thanks for feedback. In the docs for .npmrc it says files are parsed by npm/ini. However I couldn't find any obvious indication of how // is parsed in the source code and it's many RegExp's.

            – RobC
            Nov 13 '18 at 14:50






          • 1





            Ok, protocol-relative URLs are plausible, except that other entries also have a // that don't seem to be URIs, i.e. in my example above, there's //email=

            – Jolly Roger
            Nov 15 '18 at 0:45
















          2














          // has no special meaning in .npmrc or any other .ini file.



          The ini syntax is key = value. So in this case the key is //npm.myregistry.io/:_authToken.



          This is a Protocol-relative URL, meaning an URL that will take the protocol automatically from the current page (you can actually type //google.com in the browser, and it should take you to https://google.com)



          Note that this may not necessarily be the URL used by npm for authentication. It's just a format chosen by the developers to hold the authToken (or other values) in the same string with the registry URL.






          share|improve this answer




















          • 1





            Good explanation @mihai. However, why is the key name //npm.myregistry.io/:_authToken instead of npm.myregistry.io/:_authToken (i.e. without // prefix)? Why use a Protocol-relative URL for a key name in this context of a .npmrc? Seems to me that a Protocol-relative URL would make more sense as a value and not a key.

            – RobC
            Nov 13 '18 at 14:18






          • 1





            For me, when typing //google.com in the browser (FF, Safari, and Chrome) it resolves to file:////google.com

            – RobC
            Nov 13 '18 at 14:25






          • 1





            @RobC it probably has to do with the internal logic of npm. What's stored in the .npmrc is not necessarily the URL used for authentification, it's just a way to hold the authToken in a format that also contains the registry URL. Here is where the token is read in the source code.

            – mihai
            Nov 13 '18 at 14:38






          • 1





            Thanks for feedback. In the docs for .npmrc it says files are parsed by npm/ini. However I couldn't find any obvious indication of how // is parsed in the source code and it's many RegExp's.

            – RobC
            Nov 13 '18 at 14:50






          • 1





            Ok, protocol-relative URLs are plausible, except that other entries also have a // that don't seem to be URIs, i.e. in my example above, there's //email=

            – Jolly Roger
            Nov 15 '18 at 0:45














          2












          2








          2







          // has no special meaning in .npmrc or any other .ini file.



          The ini syntax is key = value. So in this case the key is //npm.myregistry.io/:_authToken.



          This is a Protocol-relative URL, meaning an URL that will take the protocol automatically from the current page (you can actually type //google.com in the browser, and it should take you to https://google.com)



          Note that this may not necessarily be the URL used by npm for authentication. It's just a format chosen by the developers to hold the authToken (or other values) in the same string with the registry URL.






          share|improve this answer















          // has no special meaning in .npmrc or any other .ini file.



          The ini syntax is key = value. So in this case the key is //npm.myregistry.io/:_authToken.



          This is a Protocol-relative URL, meaning an URL that will take the protocol automatically from the current page (you can actually type //google.com in the browser, and it should take you to https://google.com)



          Note that this may not necessarily be the URL used by npm for authentication. It's just a format chosen by the developers to hold the authToken (or other values) in the same string with the registry URL.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 13 '18 at 18:02

























          answered Nov 13 '18 at 12:54









          mihaimihai

          24.4k74069




          24.4k74069







          • 1





            Good explanation @mihai. However, why is the key name //npm.myregistry.io/:_authToken instead of npm.myregistry.io/:_authToken (i.e. without // prefix)? Why use a Protocol-relative URL for a key name in this context of a .npmrc? Seems to me that a Protocol-relative URL would make more sense as a value and not a key.

            – RobC
            Nov 13 '18 at 14:18






          • 1





            For me, when typing //google.com in the browser (FF, Safari, and Chrome) it resolves to file:////google.com

            – RobC
            Nov 13 '18 at 14:25






          • 1





            @RobC it probably has to do with the internal logic of npm. What's stored in the .npmrc is not necessarily the URL used for authentification, it's just a way to hold the authToken in a format that also contains the registry URL. Here is where the token is read in the source code.

            – mihai
            Nov 13 '18 at 14:38






          • 1





            Thanks for feedback. In the docs for .npmrc it says files are parsed by npm/ini. However I couldn't find any obvious indication of how // is parsed in the source code and it's many RegExp's.

            – RobC
            Nov 13 '18 at 14:50






          • 1





            Ok, protocol-relative URLs are plausible, except that other entries also have a // that don't seem to be URIs, i.e. in my example above, there's //email=

            – Jolly Roger
            Nov 15 '18 at 0:45













          • 1





            Good explanation @mihai. However, why is the key name //npm.myregistry.io/:_authToken instead of npm.myregistry.io/:_authToken (i.e. without // prefix)? Why use a Protocol-relative URL for a key name in this context of a .npmrc? Seems to me that a Protocol-relative URL would make more sense as a value and not a key.

            – RobC
            Nov 13 '18 at 14:18






          • 1





            For me, when typing //google.com in the browser (FF, Safari, and Chrome) it resolves to file:////google.com

            – RobC
            Nov 13 '18 at 14:25






          • 1





            @RobC it probably has to do with the internal logic of npm. What's stored in the .npmrc is not necessarily the URL used for authentification, it's just a way to hold the authToken in a format that also contains the registry URL. Here is where the token is read in the source code.

            – mihai
            Nov 13 '18 at 14:38






          • 1





            Thanks for feedback. In the docs for .npmrc it says files are parsed by npm/ini. However I couldn't find any obvious indication of how // is parsed in the source code and it's many RegExp's.

            – RobC
            Nov 13 '18 at 14:50






          • 1





            Ok, protocol-relative URLs are plausible, except that other entries also have a // that don't seem to be URIs, i.e. in my example above, there's //email=

            – Jolly Roger
            Nov 15 '18 at 0:45








          1




          1





          Good explanation @mihai. However, why is the key name //npm.myregistry.io/:_authToken instead of npm.myregistry.io/:_authToken (i.e. without // prefix)? Why use a Protocol-relative URL for a key name in this context of a .npmrc? Seems to me that a Protocol-relative URL would make more sense as a value and not a key.

          – RobC
          Nov 13 '18 at 14:18





          Good explanation @mihai. However, why is the key name //npm.myregistry.io/:_authToken instead of npm.myregistry.io/:_authToken (i.e. without // prefix)? Why use a Protocol-relative URL for a key name in this context of a .npmrc? Seems to me that a Protocol-relative URL would make more sense as a value and not a key.

          – RobC
          Nov 13 '18 at 14:18




          1




          1





          For me, when typing //google.com in the browser (FF, Safari, and Chrome) it resolves to file:////google.com

          – RobC
          Nov 13 '18 at 14:25





          For me, when typing //google.com in the browser (FF, Safari, and Chrome) it resolves to file:////google.com

          – RobC
          Nov 13 '18 at 14:25




          1




          1





          @RobC it probably has to do with the internal logic of npm. What's stored in the .npmrc is not necessarily the URL used for authentification, it's just a way to hold the authToken in a format that also contains the registry URL. Here is where the token is read in the source code.

          – mihai
          Nov 13 '18 at 14:38





          @RobC it probably has to do with the internal logic of npm. What's stored in the .npmrc is not necessarily the URL used for authentification, it's just a way to hold the authToken in a format that also contains the registry URL. Here is where the token is read in the source code.

          – mihai
          Nov 13 '18 at 14:38




          1




          1





          Thanks for feedback. In the docs for .npmrc it says files are parsed by npm/ini. However I couldn't find any obvious indication of how // is parsed in the source code and it's many RegExp's.

          – RobC
          Nov 13 '18 at 14:50





          Thanks for feedback. In the docs for .npmrc it says files are parsed by npm/ini. However I couldn't find any obvious indication of how // is parsed in the source code and it's many RegExp's.

          – RobC
          Nov 13 '18 at 14:50




          1




          1





          Ok, protocol-relative URLs are plausible, except that other entries also have a // that don't seem to be URIs, i.e. in my example above, there's //email=

          – Jolly Roger
          Nov 15 '18 at 0:45






          Ok, protocol-relative URLs are plausible, except that other entries also have a // that don't seem to be URIs, i.e. in my example above, there's //email=

          – Jolly Roger
          Nov 15 '18 at 0:45




















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