AIUI, the version number output by `consul version` is not specified by Go, but by the consul source itself. As far as Go is concerned, it's just be a string constant (or maybe even a dynamically assembled string from integer constants or.... Anything really). As such, there is no really reliable way to do what you want.
Go provides version information via the `go version -m` command pointed out by others - as long as the binary is built using modules, which is the only case *Go* knows anything about versions at all. If that doesn't work for you, I don't think there is anything as far as Go is concerned. On Wed, Aug 19, 2020, 10:36 thatipelli santhosh < santhoshthatipelli...@gmail.com> wrote: > Hi Guys > > Thank you for your response. > > Consul is go executable. I can get version using /bin/consul version > command but I need to find the version using string search in executable > file data. > > > I noticed some pattern in executables > > 1.8.312345156252160h3100043191500ms781258760h94105:***@ => 1.8.3 > > 1.8.212345156252160h3100043191500ms781258760h94105:***@ => 1.8.2 > > 1.8.112345156252160h3100043191500ms781258760h94105:***@ => 1.8.1 > > 1.8.012345156252160h3100043191500ms781258760h94105:***@ > > 1.7.712345156252160h3100043191500ms781258760h94105:***@ > > 1.7.612345156252160h3100043191500ms781258760h94105:***@ > > 1.7.412345156252160h3100043191500ms781258760h94105:***@ > > 1.7.312345156252160h3100043191500ms781258760h94105:***@ > > 1.7.212345156252160h3100043191500ms781258760h94105:***@ > > 1.6.812345156252160h3100043191500ms781258760h94105:***@ > > > the first 3 digits are version number in above strings which we found them > executable but I don't find this string in all versions of consul > > > So does go use any specific delimiter before or after adding version > numbers in executable file (compiled file)? > > do you have any idea to get version number from go executable without > executing it which is common for all? > > Note: Attached screenshot method is not working for all versions > > > > On Thu, Aug 13, 2020 at 6:35 PM Sathish VJ <sathis...@gmail.com> wrote: > >> Maybe you are asking how to get build version information into the >> executable. If yes, then use -ldflags. >> https://pmcgrath.net/include-version-information-in-golang-app >> >> On Thursday, 13 August 2020 at 15:12:36 UTC+5:30 seank...@gmail.com >> wrote: >> >>> go version -m <executable> >>> >>> On Thursday, August 13, 2020 at 10:30:56 AM UTC+2 >>> santhoshth...@gmail.com wrote: >>> >>>> Hi All, >>>> >>>> What is best way to know a executable version without executing it >>>> through golang? >>>> >>>> I tried with reading the executable file through a scanner and matching >>>> every line with regex (like ngnix regx) but this is not working for all >>>> executables. >>>> >>>> Do you have any idea? >>>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/golang-nuts/eac6fad2-edcf-47c2-8b0e-e1f2d2dd6d56n%40googlegroups.com >> <https://groups.google.com/d/msgid/golang-nuts/eac6fad2-edcf-47c2-8b0e-e1f2d2dd6d56n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/CAN1Sb7wuBOxEFxO3KJnrDo9B6WuZcwCvnjsSHgZzKOMZ5OWO%3DQ%40mail.gmail.com > <https://groups.google.com/d/msgid/golang-nuts/CAN1Sb7wuBOxEFxO3KJnrDo9B6WuZcwCvnjsSHgZzKOMZ5OWO%3DQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAEkBMfEq_DBbRnNtwHioZ18fEYs1%3DjKZDaoTm3Ktp4cdhY8haQ%40mail.gmail.com.
