# Help creating git alias 15 messages from 2013-10-30 to 2013-10-31. Participants: Eugene Sajine, Andrew Ardill, Ralf Thielow, Junio C Hamano, David Aguilar. Thread: https://gitlist.dev/t/35249 ## Eugene Sajine, 2013-10-30 19:34 Subject: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAPZPVFbiSx8n0W1kcczCdC6ioVuWpwuUQ_pc9T%3D7i4X_FuZNhg%40mail.gmail.com ``` Hi, I need some advice about creating the git command alias: I have this as the command: git log --pretty=format:"%h %ad %ae %s" --date=short | sed 's/@\S*//g' The purpose is to cut off the email domain and keep only username. I'm trying to create this as the alias: lg = !sh -c 'git log --pretty=format:"%h %ad %ae %s" --date=short | sed 's/@\S*//g'' - but it complains about the \S and i'm failing to come up with the escape sequence to make it work right. I know i can work around that by creating shell alias, but it is not what i would like to have. Any ideas? Thanks! ``` ## Andrew Ardill, 2013-10-30 19:47 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAH5451kcTCYaXK4tqsCkHFNLxE0z8tv%3Dn6h6QS_VkMpnWAsdGA%40mail.gmail.com In-Reply-To: ``` Have you tried backslash escaping the backslash? double escaping? I don't know how many are required, but I would try first \S, then \\S, then \\\\S, etc Regards, Andrew Ardill On 30 October 2013 12:34, Eugene Sajine wrote: > Hi, > > I need some advice about creating the git command alias: > > I have this as the command: > > git log --pretty=format:"%h %ad %ae %s" --date=short | sed 's/@\S*//g' > > > The purpose is to cut off the email domain and keep only username. > > I'm trying to create this as the alias: > > > lg = !sh -c 'git log --pretty=format:"%h %ad %ae %s" --date=short | > sed 's/@\S*//g'' - > > but it complains about the \S and i'm failing to come up with the > escape sequence to make it work right. > > I know i can work around that by creating shell alias, but it is not > what i would like to have. > > Any ideas? > > Thanks! > -- > To unsubscribe from this list: send the line "unsubscribe git" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html ``` ## Eugene Sajine, 2013-10-30 19:53 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAPZPVFaDyjxw_vQG_4wo0opw5KEX9sKMJnVNXGUJnCQGnBrB2g%40mail.gmail.com In-Reply-To: ``` On Wed, Oct 30, 2013 at 3:47 PM, Andrew Ardill wrote: > Have you tried backslash escaping the backslash? double escaping? > > I don't know how many are required, but I would try first \S, then > \\S, then \\\\S, etc > Regards, > > Andrew Ardill When i do that it stops understanding \S* as regexp so it removes only "@", while i need to remove from @ to the next whitespace Thanks, Eugene > > On 30 October 2013 12:34, Eugene Sajine wrote: >> Hi, >> >> I need some advice about creating the git command alias: >> >> I have this as the command: >> >> git log --pretty=format:"%h %ad %ae %s" --date=short | sed 's/@\S*//g' >> >> >> The purpose is to cut off the email domain and keep only username. >> >> I'm trying to create this as the alias: >> >> >> lg = !sh -c 'git log --pretty=format:"%h %ad %ae %s" --date=short | >> sed 's/@\S*//g'' - >> >> but it complains about the \S and i'm failing to come up with the >> escape sequence to make it work right. >> >> I know i can work around that by creating shell alias, but it is not >> what i would like to have. >> >> Any ideas? >> >> Thanks! >> -- >> To unsubscribe from this list: send the line "unsubscribe git" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html ``` ## Ralf Thielow, 2013-10-30 19:57 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAN0XMOKMF235S-23QcMj5cBup%2BLh4vQs7QcOqXQ-MgafsAMKNg%40mail.gmail.com In-Reply-To: ``` lg=!git log --pretty=format:'%h %ad %ae %s' --date=short | sed 's/@\\S*//g' should work. On Wed, Oct 30, 2013 at 8:34 PM, Eugene Sajine wrote: > Hi, > > I need some advice about creating the git command alias: > > I have this as the command: > > git log --pretty=format:"%h %ad %ae %s" --date=short | sed 's/@\S*//g' > > > The purpose is to cut off the email domain and keep only username. > > I'm trying to create this as the alias: > > > lg = !sh -c 'git log --pretty=format:"%h %ad %ae %s" --date=short | > sed 's/@\S*//g'' - > > but it complains about the \S and i'm failing to come up with the > escape sequence to make it work right. > > I know i can work around that by creating shell alias, but it is not > what i would like to have. > > Any ideas? > > Thanks! > -- > To unsubscribe from this list: send the line "unsubscribe git" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html ``` ## Eugene Sajine, 2013-10-30 20:10 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAPZPVFZ9WujUCQ1O9VfV83XUu_6g7Vp_MmYRCCO%2BGptOoSyvcg%40mail.gmail.com In-Reply-To: ``` On Wed, Oct 30, 2013 at 3:57 PM, Ralf Thielow wrote: > lg=!git log --pretty=format:'%h %ad %ae %s' --date=short | sed 's/@\\S*//g' > > should work. It did! thanks! I didn't know that "!sh -c" is not needed > > On Wed, Oct 30, 2013 at 8:34 PM, Eugene Sajine wrote: >> Hi, >> >> I need some advice about creating the git command alias: >> >> I have this as the command: >> >> git log --pretty=format:"%h %ad %ae %s" --date=short | sed 's/@\S*//g' >> >> >> The purpose is to cut off the email domain and keep only username. >> >> I'm trying to create this as the alias: >> >> >> lg = !sh -c 'git log --pretty=format:"%h %ad %ae %s" --date=short | >> sed 's/@\S*//g'' - >> >> but it complains about the \S and i'm failing to come up with the >> escape sequence to make it work right. >> >> I know i can work around that by creating shell alias, but it is not >> what i would like to have. >> >> Any ideas? >> >> Thanks! >> -- >> To unsubscribe from this list: send the line "unsubscribe git" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html ``` ## Junio C Hamano, 2013-10-30 21:02 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/xmqq61sebhh3.fsf%40gitster.dls.corp.google.com In-Reply-To: ``` Eugene Sajine writes: > On Wed, Oct 30, 2013 at 3:57 PM, Ralf Thielow wrote: >> lg=!git log --pretty=format:'%h %ad %ae %s' --date=short | sed 's/@\\S*//g' >> >> should work. > > > It did! thanks! I didn't know that "!sh -c" is not needed "sh -c" is often used when you pass arguments to your scriptlets, e.g. to allow git lg master..next you would want sh -c 'git log ... "$@" | sed ...' - so that git lg master..next turns into sh -c 'git log ... "$@" | sed ...' - master..next which makes $1="master..next" and fed to "git log". ``` ## Eugene Sajine, 2013-10-31 01:26 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAPZPVFarK_jKpM2f62mErAmL%2Bmck6EN1QPfHDHqqfJbJ2AfzXg%40mail.gmail.com In-Reply-To: ``` On Wed, Oct 30, 2013 at 5:02 PM, Junio C Hamano wrote: > Eugene Sajine writes: > >> On Wed, Oct 30, 2013 at 3:57 PM, Ralf Thielow wrote: >>> lg=!git log --pretty=format:'%h %ad %ae %s' --date=short | sed 's/@\\S*//g' >>> >>> should work. >> >> >> It did! thanks! I didn't know that "!sh -c" is not needed > > "sh -c" is often used when you pass arguments to your scriptlets, > e.g. to allow > > git lg master..next > > you would want > > sh -c 'git log ... "$@" | sed ...' - > > so that > > git lg master..next > > turns into > > sh -c 'git log ... "$@" | sed ...' - master..next > > which makes $1="master..next" and fed to "git log". Junio, That was my initial intention, because I would like to be able to pass parameters like to git log or git blame correctly without the explicit use of $1. Could you please advise about how to make it work with the !sh -c ? Because the same exact (sed 's/@\\S*//') syntax didn't work with "sh -c". Thanks, Eugene ``` ## Junio C Hamano, 2013-10-31 03:54 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/xmqqk3gu9jst.fsf%40gitster.dls.corp.google.com In-Reply-To: ``` Eugene Sajine writes: > That was my initial intention, because I would like to be able to pass > parameters like to git log or git blame correctly without the explicit > use of $1. Could you please advise about how to make it work with the > !sh -c ? > > Because the same exact (sed 's/@\\S*//') syntax didn't work with "sh -c". You can make it work if you think step-by-step. First, this is what you want to run: sh -c 'git log --format="..." "$@" | sed "s/@\S*//"' - so that "git euguess master..next" would turn into sh -c 'git log --format="..." "$@" | sed "s/@\S*//"' - master..next Now, you want to wrap it into an alias, i.e. [alias] euguess = "!sh -c ..." That ... part is read by our configuration reader, so you need to quote the double quotes and backslashes with backslash, which would give you something like: [alias] euguess = "!sh -c 'git log --format=\"%h %ae %s\" --date=short \"$@\" | sed \"s/@\\S*//\"' -" ``` ## Eugene Sajine, 2013-10-31 15:36 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAPZPVFYFSBRHThO08LmuN_0fc55gYX-A%2BY3%3DyA_MESko1t6fXQ%40mail.gmail.com In-Reply-To: ``` On Wed, Oct 30, 2013 at 11:54 PM, Junio C Hamano wrote: > Eugene Sajine writes: > >> That was my initial intention, because I would like to be able to pass >> parameters like to git log or git blame correctly without the explicit >> use of $1. Could you please advise about how to make it work with the >> !sh -c ? >> >> Because the same exact (sed 's/@\\S*//') syntax didn't work with "sh -c". > > You can make it work if you think step-by-step. First, this is what > you want to run: > > sh -c 'git log --format="..." "$@" | sed "s/@\S*//"' - > > so that "git euguess master..next" would turn into > > sh -c 'git log --format="..." "$@" | sed "s/@\S*//"' - master..next > > Now, you want to wrap it into an alias, i.e. > > [alias] > euguess = "!sh -c ..." > > That ... part is read by our configuration reader, so you need to > quote the double quotes and backslashes with backslash, which would > give you something like: > > [alias] > euguess = "!sh -c 'git log --format=\"%h %ae %s\" --date=short \"$@\" | sed \"s/@\\S*//\"' -" > > Junio, Thanks for taking the time - I appreciate that a lot. It does work properly now except there is some difference between the required pathnames: when i'm in a subfolder in git repo i can say git log filename But it seems that if the alias is used i need to specify full path from the root of the repo no matter where i am. git log a/b/c/filename the difference is obviously in the working directory when i add an alias: pd = "!sh -c 'pwd'" i get this: $ git pd /home/users/euguess/repo $ pwd /home/users/euguess/repo/a/b/c Is there any way to help that situation? Thanks, Eugene Thanks, Eugene ``` ## David Aguilar, 2013-10-31 17:40 Subject: Re: Help creating git alias Message-ID: <20131031174008.GA39079@gmail.com> URL: https://gitlist.dev/e/20131031174008.GA39079%40gmail.com In-Reply-To: ``` On Thu, Oct 31, 2013 at 11:36:59AM -0400, Eugene Sajine wrote: > On Wed, Oct 30, 2013 at 11:54 PM, Junio C Hamano wrote: > > Eugene Sajine writes: > > > >> That was my initial intention, because I would like to be able to pass > >> parameters like to git log or git blame correctly without the explicit > >> use of $1. Could you please advise about how to make it work with the > >> !sh -c ? > >> > >> Because the same exact (sed 's/@\\S*//') syntax didn't work with "sh -c". > > > > You can make it work if you think step-by-step. First, this is what > > you want to run: > > > > sh -c 'git log --format="..." "$@" | sed "s/@\S*//"' - > > > > so that "git euguess master..next" would turn into > > > > sh -c 'git log --format="..." "$@" | sed "s/@\S*//"' - master..next > > > > Now, you want to wrap it into an alias, i.e. > > > > [alias] > > euguess = "!sh -c ..." > > > > That ... part is read by our configuration reader, so you need to > > quote the double quotes and backslashes with backslash, which would > > give you something like: > > > > [alias] > > euguess = "!sh -c 'git log --format=\"%h %ae %s\" --date=short \"$@\" | sed \"s/@\\S*//\"' -" > > > > > > Junio, > > Thanks for taking the time - I appreciate that a lot. > It does work properly now except there is some difference between the > required pathnames: > > when i'm in a subfolder in git repo i can say > > git log filename > > But it seems that if the alias is used i need to specify full path > from the root of the repo no matter where i am. > > git log a/b/c/filename > > the difference is obviously in the working directory > > when i add an alias: > > pd = "!sh -c 'pwd'" > > i get this: > > $ git pd > /home/users/euguess/repo > > $ pwd > /home/users/euguess/repo/a/b/c > > Is there any way to help that situation? Here's the relevant details from Documentation/config.txt: """ If the alias expansion is prefixed with an exclamation point, it will be treated as a shell command. For example, defining "alias.new = !gitk --all --not ORIG_HEAD", the invocation "git new" is equivalent to running the shell command "gitk --all --not ORIG_HEAD". Note that shell commands will be executed from the top-level directory of a repository, which may not necessarily be the current directory. 'GIT_PREFIX' is set as returned by running 'git rev-parse --show-prefix' from the original current directory. See linkgit:git-rev-parse[1]. """ The $GIT_PREFIX variable should be available to the alias; it is a path relative to the root which corresponds to the current directory. That doesn't quite play well with these aliases because they use "$@", though. One way to do it is to add another layer of indirection. Maybe someone else on this list has a better suggestion, but this should do the trick... Create a shell script to contain your alias, and then point your alias at it. e.g. [alias] example = "!/path/to/alias-script \"$@\"" and then the script can look like: #!/bin/sh unset CDPATH if test -n "$GIT_PREFIX" then cd "$GIT_PREFIX" fi git log --format='%h %ae %s' --date=short "$@" | sed 's/@\\S*//' ...or something like that. I hope that helps. I'm also curious if there's a way to avoid needing the extra script... ... A-ha.. I think adding the chdir to alias is possible using a function. [alias] example = "!f() { cd \"${GIT_PREFIX:-.}\" && git log \"$@\"; }; f" Does that work for you? I hope that helps. cheers, -- David ``` ## Junio C Hamano, 2013-10-31 18:07 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/xmqqd2ml8gbs.fsf%40gitster.dls.corp.google.com In-Reply-To: <20131031174008.GA39079@gmail.com> ``` David Aguilar writes: > A-ha.. I think adding the chdir to alias is possible using a function. You do not have to use a function to do so, no? ``` ## David Aguilar, 2013-10-31 18:15 Subject: Re: Help creating git alias Message-ID: <20131031181509.GB39079@gmail.com> URL: https://gitlist.dev/e/20131031181509.GB39079%40gmail.com In-Reply-To: ``` On Thu, Oct 31, 2013 at 11:07:19AM -0700, Junio C Hamano wrote: > David Aguilar writes: > > > A-ha.. I think adding the chdir to alias is possible using a function. > > You do not have to use a function to do so, no? Right, of course. So something like: [alias] example = "!cd ${GIT_PREFIX:-.} && git log \"$@\"" should do the trick. -- David ``` ## Eugene Sajine, 2013-10-31 19:31 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAPZPVFYWf3_xtxKkdw4_gzqKagVsbNvj73cb%3DRvX1Zm0C1h8pQ%40mail.gmail.com In-Reply-To: <20131031181509.GB39079@gmail.com> ``` On Thu, Oct 31, 2013 at 2:15 PM, David Aguilar wrote: > On Thu, Oct 31, 2013 at 11:07:19AM -0700, Junio C Hamano wrote: >> David Aguilar writes: >> >> > A-ha.. I think adding the chdir to alias is possible using a function. >> >> You do not have to use a function to do so, no? > > Right, of course. > > So something like: > > [alias] > example = "!cd ${GIT_PREFIX:-.} && git log \"$@\"" > > should do the trick. > -- > David Awesome! It does work! One note: i tried the ${GIT_PREFIX:-.} and ${GIT_PREFIX} and it seems to give the same results. What is the expected difference here? Thank you! ``` ## Junio C Hamano, 2013-10-31 19:41 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/xmqq7gct5iu1.fsf%40gitster.dls.corp.google.com In-Reply-To: ``` Eugene Sajine writes: > One note: i tried the ${GIT_PREFIX:-.} and ${GIT_PREFIX} and it seems > to give the same results. What is the expected difference here? GIT_PREFIX may be an empty string when you run from the top-level, in which case you would end up with "cd && ..." and end up working in your $HOME. ``` ## Eugene Sajine, 2013-10-31 20:06 Subject: Re: Help creating git alias Message-ID: URL: https://gitlist.dev/e/CAPZPVFaFQrEdr7EN3a%3Dds2T_C87sct6ksH2SbjEg%3D43-ZNt6Jg%40mail.gmail.com In-Reply-To: ``` On Thu, Oct 31, 2013 at 3:41 PM, Junio C Hamano wrote: > Eugene Sajine writes: > >> One note: i tried the ${GIT_PREFIX:-.} and ${GIT_PREFIX} and it seems >> to give the same results. What is the expected difference here? > > GIT_PREFIX may be an empty string when you run from the top-level, > in which case you would end up with "cd && ..." and end up working > in your $HOME. > got it! thank you! Eugene ```