Remove M2_HOME setup from download page instructions
Hi, Any objection to remove the need to setup M2_HOME env variable at maven download page? Thanks -Dan https://jira.codehaus.org/browse/MNGSITE-223
Re: Remove M2_HOME setup from download page instructions
Dan, go ahead, I have not set this variable for years. Regards Mirko -- Sent from my mobile On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > Hi, > > Any objection to remove the need to setup M2_HOME env variable at maven > download page? > > > Thanks > > -Dan > > https://jira.codehaus.org/browse/MNGSITE-223 >
Re: Remove M2_HOME setup from download page instructions
I would still suggest to make sure its documented somewhere. I find it incredibly useful to just change M2_HOME to simply switch Maven versions. manfred Mirko Friedenhagen wrote on 26.01.2015 21:40: > Dan, go ahead, I have not set this variable for years. > > Regards > Mirko > -- > Sent from my mobile > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > >> Hi, >> >> Any objection to remove the need to setup M2_HOME env variable at maven >> download page? >> >> >> Thanks >> >> -Dan >> >> https://jira.codehaus.org/browse/MNGSITE-223 >> > - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
> I would still suggest to make sure its documented somewhere. I find it > incredibly useful to just change M2_HOME to simply switch Maven versions. > +1, very useful but I guess it doesn't require the name M2_HOME. /Anders > > manfred > > Mirko Friedenhagen wrote on 26.01.2015 21:40: > > > Dan, go ahead, I have not set this variable for years. > > > > Regards > > Mirko > > -- > > Sent from my mobile > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > > > >> Hi, > >> > >> Any objection to remove the need to setup M2_HOME env variable at maven > >> download page? > >> > >> > >> Thanks > >> > >> -Dan > >> > >> https://jira.codehaus.org/browse/MNGSITE-223 > >> > > > > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
I seem to recall Benson ran into a case with either release or site where it was still required no too long ago ? Kristian 2015-01-27 7:19 GMT+01:00 Anders Hammar : >> I would still suggest to make sure its documented somewhere. I find it >> incredibly useful to just change M2_HOME to simply switch Maven versions. >> > > +1, very useful but I guess it doesn't require the name M2_HOME. > > /Anders > >> >> manfred >> >> Mirko Friedenhagen wrote on 26.01.2015 21:40: >> >> > Dan, go ahead, I have not set this variable for years. >> > >> > Regards >> > Mirko >> > -- >> > Sent from my mobile >> > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >> > >> >> Hi, >> >> >> >> Any objection to remove the need to setup M2_HOME env variable at maven >> >> download page? >> >> >> >> >> >> Thanks >> >> >> >> -Dan >> >> >> >> https://jira.codehaus.org/browse/MNGSITE-223 >> >> >> > >> >> >> - >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
IMO, M2_HOME is no longer a required env starting 2.2.1, and there for it is used mainly for the exact use case that Manfred mentioned. I myself use a set a wrapper scripts ( mvn221, mvn311, etc) since it is much easier to remember. I also got bitten a number of times where user had M2_HOME set, and install new version of Maven without reset M2_HOME, and fail mysteriously (support call) here is the link to Benson's issue, it is not conclusive http://maven.40175.n5.nabble.com/VOTE-Release-Apache-Maven-Release-Plugin-version-2-5-1-td5805498.html -Dan On Mon, Jan 26, 2015 at 10:47 PM, Kristian Rosenvold < kristian.rosenv...@gmail.com> wrote: > I seem to recall Benson ran into a case with either release or site > where it was still required no too long ago ? > > Kristian > > > 2015-01-27 7:19 GMT+01:00 Anders Hammar : > >> I would still suggest to make sure its documented somewhere. I find it > >> incredibly useful to just change M2_HOME to simply switch Maven > versions. > >> > > > > +1, very useful but I guess it doesn't require the name M2_HOME. > > > > /Anders > > > >> > >> manfred > >> > >> Mirko Friedenhagen wrote on 26.01.2015 21:40: > >> > >> > Dan, go ahead, I have not set this variable for years. > >> > > >> > Regards > >> > Mirko > >> > -- > >> > Sent from my mobile > >> > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > >> > > >> >> Hi, > >> >> > >> >> Any objection to remove the need to setup M2_HOME env variable at > maven > >> >> download page? > >> >> > >> >> > >> >> Thanks > >> >> > >> >> -Dan > >> >> > >> >> https://jira.codehaus.org/browse/MNGSITE-223 > >> >> > >> > > >> > >> > >> - > >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >> For additional commands, e-mail: dev-h...@maven.apache.org > >> > >> > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
-1 it's a problematic variable, removing it is a good idea IMO, and changing mvn version is indeed just a matter of updating your path. I've been hit many a time by an updated PATH pointing to a different mvn version than the one referenced by M2_HOME, which ends with NoClassDefFoundError or something like that IIRC. That's why I've personally been advising maven users I encounter to never ever set that variable for years. Cheers 2015-01-27 7:19 GMT+01:00 Anders Hammar : > > I would still suggest to make sure its documented somewhere. I find it > > incredibly useful to just change M2_HOME to simply switch Maven versions. > > > > +1, very useful but I guess it doesn't require the name M2_HOME. > > /Anders > > > > > manfred > > > > Mirko Friedenhagen wrote on 26.01.2015 21:40: > > > > > Dan, go ahead, I have not set this variable for years. > > > > > > Regards > > > Mirko > > > -- > > > Sent from my mobile > > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > > > > > >> Hi, > > >> > > >> Any objection to remove the need to setup M2_HOME env variable at > maven > > >> download page? > > >> > > >> > > >> Thanks > > >> > > >> -Dan > > >> > > >> https://jira.codehaus.org/browse/MNGSITE-223 > > >> > > > > > > > > > - > > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > > For additional commands, e-mail: dev-h...@maven.apache.org > > > > > > -- > Baptiste MATHUS - http://batmat.net > Sauvez un arbre, > Mangez un castor ! > nbsp;! >
Re: Remove M2_HOME setup from download page instructions
I know of two cases where it comes up. 1: some of our own ITs. Those aren't a reason for comprehensive doc. 2: an application I wrote for Aether :-) On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus wrote: > -1 it's a problematic variable, removing it is a good idea IMO, and > changing mvn version is indeed just a matter of updating your path. > > I've been hit many a time by an updated PATH pointing to a different mvn > version than the one referenced by M2_HOME, which ends with > NoClassDefFoundError or something like that IIRC. > That's why I've personally been advising maven users I encounter to never > ever set that variable for years. > > Cheers > > 2015-01-27 7:19 GMT+01:00 Anders Hammar : > >> > I would still suggest to make sure its documented somewhere. I find it >> > incredibly useful to just change M2_HOME to simply switch Maven versions. >> > >> >> +1, very useful but I guess it doesn't require the name M2_HOME. >> >> /Anders >> >> > >> > manfred >> > >> > Mirko Friedenhagen wrote on 26.01.2015 21:40: >> > >> > > Dan, go ahead, I have not set this variable for years. >> > > >> > > Regards >> > > Mirko >> > > -- >> > > Sent from my mobile >> > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >> > > >> > >> Hi, >> > >> >> > >> Any objection to remove the need to setup M2_HOME env variable at >> maven >> > >> download page? >> > >> >> > >> >> > >> Thanks >> > >> >> > >> -Dan >> > >> >> > >> https://jira.codehaus.org/browse/MNGSITE-223 >> > >> >> > > >> > >> > >> > - >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> > For additional commands, e-mail: dev-h...@maven.apache.org >> > >> > >> >> -- >> Baptiste MATHUS - http://batmat.net >> Sauvez un arbre, >> Mangez un castor ! >> nbsp;! >> - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
@Baptiste, so I guess your vote is actually +1 to remove it from documentation, right? M2_HOME is automatically set by the shell or batch script. The M2_HOME variable is here used to easily switch between different Maven distributions. But with this name this can indeed cause NoClassDefFoundErrors. For the majority of the community it's not interesting to have multiple versions of Maven and to switch often. So this M2_HOME might be confusing. Instead just add apache-maven-3.x.x/bin to your path. You have my +1 for this change. Also, there's no need to add JAVA_HOME/bin to the path. Maven picks it up as an environment variable, it won't scan the path searching for the java executable. So I'd like to see that removed as well. thanks, Robert Op Tue, 27 Jan 2015 10:04:28 +0100 schreef Baptiste Mathus : -1 it's a problematic variable, removing it is a good idea IMO, and changing mvn version is indeed just a matter of updating your path. I've been hit many a time by an updated PATH pointing to a different mvn version than the one referenced by M2_HOME, which ends with NoClassDefFoundError or something like that IIRC. That's why I've personally been advising maven users I encounter to never ever set that variable for years. Cheers 2015-01-27 7:19 GMT+01:00 Anders Hammar : > I would still suggest to make sure its documented somewhere. I find it > incredibly useful to just change M2_HOME to simply switch Maven versions. > +1, very useful but I guess it doesn't require the name M2_HOME. /Anders > > manfred > > Mirko Friedenhagen wrote on 26.01.2015 21:40: > > > Dan, go ahead, I have not set this variable for years. > > > > Regards > > Mirko > > -- > > Sent from my mobile > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > > > >> Hi, > >> > >> Any objection to remove the need to setup M2_HOME env variable at maven > >> download page? > >> > >> > >> Thanks > >> > >> -Dan > >> > >> https://jira.codehaus.org/browse/MNGSITE-223 > >> > > > > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > > -- Baptiste MATHUS - http://batmat.net Sauvez un arbre, Mangez un castor ! nbsp;! - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
Hi Benson, What is your verdict? Thanks -D On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies wrote: > I know of two cases where it comes up. > > 1: some of our own ITs. Those aren't a reason for comprehensive doc. > > 2: an application I wrote for Aether :-) > > > > On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus wrote: > > -1 it's a problematic variable, removing it is a good idea IMO, and > > changing mvn version is indeed just a matter of updating your path. > > > > I've been hit many a time by an updated PATH pointing to a different mvn > > version than the one referenced by M2_HOME, which ends with > > NoClassDefFoundError or something like that IIRC. > > That's why I've personally been advising maven users I encounter to never > > ever set that variable for years. > > > > Cheers > > > > 2015-01-27 7:19 GMT+01:00 Anders Hammar : > > > >> > I would still suggest to make sure its documented somewhere. I find it > >> > incredibly useful to just change M2_HOME to simply switch Maven > versions. > >> > > >> > >> +1, very useful but I guess it doesn't require the name M2_HOME. > >> > >> /Anders > >> > >> > > >> > manfred > >> > > >> > Mirko Friedenhagen wrote on 26.01.2015 21:40: > >> > > >> > > Dan, go ahead, I have not set this variable for years. > >> > > > >> > > Regards > >> > > Mirko > >> > > -- > >> > > Sent from my mobile > >> > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > >> > > > >> > >> Hi, > >> > >> > >> > >> Any objection to remove the need to setup M2_HOME env variable at > >> maven > >> > >> download page? > >> > >> > >> > >> > >> > >> Thanks > >> > >> > >> > >> -Dan > >> > >> > >> > >> https://jira.codehaus.org/browse/MNGSITE-223 > >> > >> > >> > > > >> > > >> > > >> > - > >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >> > For additional commands, e-mail: dev-h...@maven.apache.org > >> > > >> > > >> > >> -- > >> Baptiste MATHUS - http://batmat.net > >> Sauvez un arbre, > >> Mangez un castor ! > >> nbsp;! > >> > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
On Tue, Jan 27, 2015 at 1:16 PM, Dan Tran wrote: > Hi Benson, > > What is your verdict? I vote for removing it from the publically facing doc. is there also a thought of removing it from the code? I guess if someone makes sure that all our many tests pass without it, fine with me. I should explain my passing reference to Aether. I wrote a little OSGi utility that uses Aether to fetch some dependencies, and I wanted it to get mirror definitions out of, well, $M2_HOME/conf/settings.xml. That probably counts as acute sloth on my part. > > Thanks > > -D > > On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies > wrote: > >> I know of two cases where it comes up. >> >> 1: some of our own ITs. Those aren't a reason for comprehensive doc. >> >> 2: an application I wrote for Aether :-) >> >> >> >> On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus wrote: >> > -1 it's a problematic variable, removing it is a good idea IMO, and >> > changing mvn version is indeed just a matter of updating your path. >> > >> > I've been hit many a time by an updated PATH pointing to a different mvn >> > version than the one referenced by M2_HOME, which ends with >> > NoClassDefFoundError or something like that IIRC. >> > That's why I've personally been advising maven users I encounter to never >> > ever set that variable for years. >> > >> > Cheers >> > >> > 2015-01-27 7:19 GMT+01:00 Anders Hammar : >> > >> >> > I would still suggest to make sure its documented somewhere. I find it >> >> > incredibly useful to just change M2_HOME to simply switch Maven >> versions. >> >> > >> >> >> >> +1, very useful but I guess it doesn't require the name M2_HOME. >> >> >> >> /Anders >> >> >> >> > >> >> > manfred >> >> > >> >> > Mirko Friedenhagen wrote on 26.01.2015 21:40: >> >> > >> >> > > Dan, go ahead, I have not set this variable for years. >> >> > > >> >> > > Regards >> >> > > Mirko >> >> > > -- >> >> > > Sent from my mobile >> >> > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >> >> > > >> >> > >> Hi, >> >> > >> >> >> > >> Any objection to remove the need to setup M2_HOME env variable at >> >> maven >> >> > >> download page? >> >> > >> >> >> > >> >> >> > >> Thanks >> >> > >> >> >> > >> -Dan >> >> > >> >> >> > >> https://jira.codehaus.org/browse/MNGSITE-223 >> >> > >> >> >> > > >> >> > >> >> > >> >> > - >> >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> > For additional commands, e-mail: dev-h...@maven.apache.org >> >> > >> >> > >> >> >> >> -- >> >> Baptiste MATHUS - http://batmat.net >> >> Sauvez un arbre, >> >> Mangez un castor ! >> >> nbsp;! >> >> >> >> - >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
Hi Benson By "many tests" are you refer to the incident at release plugin 2.5.1, or maven-core IT Thanks -D On Tue, Jan 27, 2015 at 10:28 AM, Benson Margulies wrote: > On Tue, Jan 27, 2015 at 1:16 PM, Dan Tran wrote: > > Hi Benson, > > > > What is your verdict? > > I vote for removing it from the publically facing doc. is there also a > thought of removing it from the code? I guess if someone makes sure > that all our many tests pass without it, fine with me. > > I should explain my passing reference to Aether. > > I wrote a little OSGi utility that uses Aether to fetch some > dependencies, and I wanted it to get mirror definitions out of, well, > $M2_HOME/conf/settings.xml. That probably counts as acute sloth on my > part. > > > > > > Thanks > > > > -D > > > > On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies > > > wrote: > > > >> I know of two cases where it comes up. > >> > >> 1: some of our own ITs. Those aren't a reason for comprehensive doc. > >> > >> 2: an application I wrote for Aether :-) > >> > >> > >> > >> On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus wrote: > >> > -1 it's a problematic variable, removing it is a good idea IMO, and > >> > changing mvn version is indeed just a matter of updating your path. > >> > > >> > I've been hit many a time by an updated PATH pointing to a different > mvn > >> > version than the one referenced by M2_HOME, which ends with > >> > NoClassDefFoundError or something like that IIRC. > >> > That's why I've personally been advising maven users I encounter to > never > >> > ever set that variable for years. > >> > > >> > Cheers > >> > > >> > 2015-01-27 7:19 GMT+01:00 Anders Hammar : > >> > > >> >> > I would still suggest to make sure its documented somewhere. I > find it > >> >> > incredibly useful to just change M2_HOME to simply switch Maven > >> versions. > >> >> > > >> >> > >> >> +1, very useful but I guess it doesn't require the name M2_HOME. > >> >> > >> >> /Anders > >> >> > >> >> > > >> >> > manfred > >> >> > > >> >> > Mirko Friedenhagen wrote on 26.01.2015 21:40: > >> >> > > >> >> > > Dan, go ahead, I have not set this variable for years. > >> >> > > > >> >> > > Regards > >> >> > > Mirko > >> >> > > -- > >> >> > > Sent from my mobile > >> >> > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > >> >> > > > >> >> > >> Hi, > >> >> > >> > >> >> > >> Any objection to remove the need to setup M2_HOME env variable > at > >> >> maven > >> >> > >> download page? > >> >> > >> > >> >> > >> > >> >> > >> Thanks > >> >> > >> > >> >> > >> -Dan > >> >> > >> > >> >> > >> https://jira.codehaus.org/browse/MNGSITE-223 > >> >> > >> > >> >> > > > >> >> > > >> >> > > >> >> > > - > >> >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >> >> > For additional commands, e-mail: dev-h...@maven.apache.org > >> >> > > >> >> > > >> >> > >> >> -- > >> >> Baptiste MATHUS - http://batmat.net > >> >> Sauvez un arbre, > >> >> Mangez un castor ! > >> >> nbsp;! > >> >> > >> > >> - > >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >> For additional commands, e-mail: dev-h...@maven.apache.org > >> > >> > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
On Tue, Jan 27, 2015 at 2:10 PM, Dan Tran wrote: > Hi Benson > > By "many tests" are you refer to the incident at release plugin 2.5.1, or > maven-core IT I'm guessing that the M-R-P integration tests are not the only plugin integration tests that care. I'm pretty sure I've run into this before. > > Thanks > > -D > > On Tue, Jan 27, 2015 at 10:28 AM, Benson Margulies > wrote: > >> On Tue, Jan 27, 2015 at 1:16 PM, Dan Tran wrote: >> > Hi Benson, >> > >> > What is your verdict? >> >> I vote for removing it from the publically facing doc. is there also a >> thought of removing it from the code? I guess if someone makes sure >> that all our many tests pass without it, fine with me. >> >> I should explain my passing reference to Aether. >> >> I wrote a little OSGi utility that uses Aether to fetch some >> dependencies, and I wanted it to get mirror definitions out of, well, >> $M2_HOME/conf/settings.xml. That probably counts as acute sloth on my >> part. >> >> >> > >> > Thanks >> > >> > -D >> > >> > On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies > > >> > wrote: >> > >> >> I know of two cases where it comes up. >> >> >> >> 1: some of our own ITs. Those aren't a reason for comprehensive doc. >> >> >> >> 2: an application I wrote for Aether :-) >> >> >> >> >> >> >> >> On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus wrote: >> >> > -1 it's a problematic variable, removing it is a good idea IMO, and >> >> > changing mvn version is indeed just a matter of updating your path. >> >> > >> >> > I've been hit many a time by an updated PATH pointing to a different >> mvn >> >> > version than the one referenced by M2_HOME, which ends with >> >> > NoClassDefFoundError or something like that IIRC. >> >> > That's why I've personally been advising maven users I encounter to >> never >> >> > ever set that variable for years. >> >> > >> >> > Cheers >> >> > >> >> > 2015-01-27 7:19 GMT+01:00 Anders Hammar : >> >> > >> >> >> > I would still suggest to make sure its documented somewhere. I >> find it >> >> >> > incredibly useful to just change M2_HOME to simply switch Maven >> >> versions. >> >> >> > >> >> >> >> >> >> +1, very useful but I guess it doesn't require the name M2_HOME. >> >> >> >> >> >> /Anders >> >> >> >> >> >> > >> >> >> > manfred >> >> >> > >> >> >> > Mirko Friedenhagen wrote on 26.01.2015 21:40: >> >> >> > >> >> >> > > Dan, go ahead, I have not set this variable for years. >> >> >> > > >> >> >> > > Regards >> >> >> > > Mirko >> >> >> > > -- >> >> >> > > Sent from my mobile >> >> >> > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >> >> >> > > >> >> >> > >> Hi, >> >> >> > >> >> >> >> > >> Any objection to remove the need to setup M2_HOME env variable >> at >> >> >> maven >> >> >> > >> download page? >> >> >> > >> >> >> >> > >> >> >> >> > >> Thanks >> >> >> > >> >> >> >> > >> -Dan >> >> >> > >> >> >> >> > >> https://jira.codehaus.org/browse/MNGSITE-223 >> >> >> > >> >> >> >> > > >> >> >> > >> >> >> > >> >> >> > >> - >> >> >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> >> > For additional commands, e-mail: dev-h...@maven.apache.org >> >> >> > >> >> >> > >> >> >> >> >> >> -- >> >> >> Baptiste MATHUS - http://batmat.net >> >> >> Sauvez un arbre, >> >> >> Mangez un castor ! >> >> >> nbsp;! >> >> >> >> >> >> >> - >> >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> >> >> >> >> - >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
Strange I don't have a problem with maven-release build running with -Prun-its -D On Tue, Jan 27, 2015 at 11:20 AM, Benson Margulies wrote: > On Tue, Jan 27, 2015 at 2:10 PM, Dan Tran wrote: > > Hi Benson > > > > By "many tests" are you refer to the incident at release plugin 2.5.1, > or > > maven-core IT > > I'm guessing that the M-R-P integration tests are not the only plugin > integration tests that care. I'm pretty sure I've run into this > before. > > > > > > Thanks > > > > -D > > > > On Tue, Jan 27, 2015 at 10:28 AM, Benson Margulies < > bimargul...@gmail.com> > > wrote: > > > >> On Tue, Jan 27, 2015 at 1:16 PM, Dan Tran wrote: > >> > Hi Benson, > >> > > >> > What is your verdict? > >> > >> I vote for removing it from the publically facing doc. is there also a > >> thought of removing it from the code? I guess if someone makes sure > >> that all our many tests pass without it, fine with me. > >> > >> I should explain my passing reference to Aether. > >> > >> I wrote a little OSGi utility that uses Aether to fetch some > >> dependencies, and I wanted it to get mirror definitions out of, well, > >> $M2_HOME/conf/settings.xml. That probably counts as acute sloth on my > >> part. > >> > >> > >> > > >> > Thanks > >> > > >> > -D > >> > > >> > On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies < > bimargul...@gmail.com > >> > > >> > wrote: > >> > > >> >> I know of two cases where it comes up. > >> >> > >> >> 1: some of our own ITs. Those aren't a reason for comprehensive doc. > >> >> > >> >> 2: an application I wrote for Aether :-) > >> >> > >> >> > >> >> > >> >> On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus > wrote: > >> >> > -1 it's a problematic variable, removing it is a good idea IMO, and > >> >> > changing mvn version is indeed just a matter of updating your path. > >> >> > > >> >> > I've been hit many a time by an updated PATH pointing to a > different > >> mvn > >> >> > version than the one referenced by M2_HOME, which ends with > >> >> > NoClassDefFoundError or something like that IIRC. > >> >> > That's why I've personally been advising maven users I encounter to > >> never > >> >> > ever set that variable for years. > >> >> > > >> >> > Cheers > >> >> > > >> >> > 2015-01-27 7:19 GMT+01:00 Anders Hammar : > >> >> > > >> >> >> > I would still suggest to make sure its documented somewhere. I > >> find it > >> >> >> > incredibly useful to just change M2_HOME to simply switch Maven > >> >> versions. > >> >> >> > > >> >> >> > >> >> >> +1, very useful but I guess it doesn't require the name M2_HOME. > >> >> >> > >> >> >> /Anders > >> >> >> > >> >> >> > > >> >> >> > manfred > >> >> >> > > >> >> >> > Mirko Friedenhagen wrote on 26.01.2015 21:40: > >> >> >> > > >> >> >> > > Dan, go ahead, I have not set this variable for years. > >> >> >> > > > >> >> >> > > Regards > >> >> >> > > Mirko > >> >> >> > > -- > >> >> >> > > Sent from my mobile > >> >> >> > > On Jan 27, 2015 5:52 AM, "Dan Tran" > wrote: > >> >> >> > > > >> >> >> > >> Hi, > >> >> >> > >> > >> >> >> > >> Any objection to remove the need to setup M2_HOME env > variable > >> at > >> >> >> maven > >> >> >> > >> download page? > >> >> >> > >> > >> >> >> > >> > >> >> >> > >> Thanks > >> >> >> > >> > >> >> >> > >> -Dan > >> >> >> > >> > >> >> >> > >> https://jira.codehaus.org/browse/MNGSITE-223 > >> >> >> > >> > >> >> >> > > > >> >> >> > > >> >> >> > > >> >> >> > > >> - > >> >> >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >> >> >> > For additional commands, e-mail: dev-h...@maven.apache.org > >> >> >> > > >> >> >> > > >> >> >> > >> >> >> -- > >> >> >> Baptiste MATHUS - http://batmat.net > >> >> >> Sauvez un arbre, > >> >> >> Mangez un castor ! > >> >> >> nbsp;! > >> >> >> > >> >> > >> >> - > >> >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >> >> For additional commands, e-mail: dev-h...@maven.apache.org > >> >> > >> >> > >> > >> - > >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >> For additional commands, e-mail: dev-h...@maven.apache.org > >> > >> > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
Just see this change [1] at Maven core where the 'mvn' script get altered. Not sure about the impact of this change when using M2_HOME to support multiple is distributions. -Dan [1] https://git1-us-west.apache.org/repos/asf?p=maven.git;a=commitdiff;h=0a76e91b On Tue, Jan 27, 2015 at 11:38 AM, Dan Tran wrote: > Strange I don't have a problem with maven-release build running with > -Prun-its > > -D > > On Tue, Jan 27, 2015 at 11:20 AM, Benson Margulies > wrote: > >> On Tue, Jan 27, 2015 at 2:10 PM, Dan Tran wrote: >> > Hi Benson >> > >> > By "many tests" are you refer to the incident at release plugin 2.5.1, >> or >> > maven-core IT >> >> I'm guessing that the M-R-P integration tests are not the only plugin >> integration tests that care. I'm pretty sure I've run into this >> before. >> >> >> > >> > Thanks >> > >> > -D >> > >> > On Tue, Jan 27, 2015 at 10:28 AM, Benson Margulies < >> bimargul...@gmail.com> >> > wrote: >> > >> >> On Tue, Jan 27, 2015 at 1:16 PM, Dan Tran wrote: >> >> > Hi Benson, >> >> > >> >> > What is your verdict? >> >> >> >> I vote for removing it from the publically facing doc. is there also a >> >> thought of removing it from the code? I guess if someone makes sure >> >> that all our many tests pass without it, fine with me. >> >> >> >> I should explain my passing reference to Aether. >> >> >> >> I wrote a little OSGi utility that uses Aether to fetch some >> >> dependencies, and I wanted it to get mirror definitions out of, well, >> >> $M2_HOME/conf/settings.xml. That probably counts as acute sloth on my >> >> part. >> >> >> >> >> >> > >> >> > Thanks >> >> > >> >> > -D >> >> > >> >> > On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies < >> bimargul...@gmail.com >> >> > >> >> > wrote: >> >> > >> >> >> I know of two cases where it comes up. >> >> >> >> >> >> 1: some of our own ITs. Those aren't a reason for comprehensive doc. >> >> >> >> >> >> 2: an application I wrote for Aether :-) >> >> >> >> >> >> >> >> >> >> >> >> On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus >> wrote: >> >> >> > -1 it's a problematic variable, removing it is a good idea IMO, >> and >> >> >> > changing mvn version is indeed just a matter of updating your >> path. >> >> >> > >> >> >> > I've been hit many a time by an updated PATH pointing to a >> different >> >> mvn >> >> >> > version than the one referenced by M2_HOME, which ends with >> >> >> > NoClassDefFoundError or something like that IIRC. >> >> >> > That's why I've personally been advising maven users I encounter >> to >> >> never >> >> >> > ever set that variable for years. >> >> >> > >> >> >> > Cheers >> >> >> > >> >> >> > 2015-01-27 7:19 GMT+01:00 Anders Hammar : >> >> >> > >> >> >> >> > I would still suggest to make sure its documented somewhere. I >> >> find it >> >> >> >> > incredibly useful to just change M2_HOME to simply switch Maven >> >> >> versions. >> >> >> >> > >> >> >> >> >> >> >> >> +1, very useful but I guess it doesn't require the name M2_HOME. >> >> >> >> >> >> >> >> /Anders >> >> >> >> >> >> >> >> > >> >> >> >> > manfred >> >> >> >> > >> >> >> >> > Mirko Friedenhagen wrote on 26.01.2015 21:40: >> >> >> >> > >> >> >> >> > > Dan, go ahead, I have not set this variable for years. >> >> >> >> > > >> >> >> >> > > Regards >> >> >> >> > > Mirko >> >> >> >> > > -- >> >> >> >> > > Sent from my mobile >> >> >> >> > > On Jan 27, 2015 5:52 AM, "Dan Tran" >> wrote: >> >> >> >> > > >> >> >> >> > >> Hi, >> >> >> >> > >> >> >> >> >> > >> Any objection to remove the need to setup M2_HOME env >> variable >> >> at >> >> >> >> maven >> >> >> >> > >> download page? >> >> >> >> > >> >> >> >> >> > >> >> >> >> >> > >> Thanks >> >> >> >> > >> >> >> >> >> > >> -Dan >> >> >> >> > >> >> >> >> >> > >> https://jira.codehaus.org/browse/MNGSITE-223 >> >> >> >> > >> >> >> >> >> > > >> >> >> >> > >> >> >> >> > >> >> >> >> > >> >> - >> >> >> >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> >> >> > For additional commands, e-mail: dev-h...@maven.apache.org >> >> >> >> > >> >> >> >> > >> >> >> >> >> >> >> >> -- >> >> >> >> Baptiste MATHUS - http://batmat.net >> >> >> >> Sauvez un arbre, >> >> >> >> Mangez un castor ! >> >> >> >> nbsp;! >> >> >> >> >> >> >> >> >> >> >> - >> >> >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> >> >> >> >> >> >> >> >> - >> >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> >> >> >> >> - >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> >
Re: Remove M2_HOME setup from download page instructions
You sure you linked the right commit? The commit you linked is from my experimental branch and it does not change how mvn* scripts use M2_HOME environment variable. -- Regards, Igor On 2015-01-27 16:26, Dan Tran wrote: Just see this change [1] at Maven core where the 'mvn' script get altered. Not sure about the impact of this change when using M2_HOME to support multiple is distributions. -Dan [1] https://git1-us-west.apache.org/repos/asf?p=maven.git;a=commitdiff;h=0a76e91b On Tue, Jan 27, 2015 at 11:38 AM, Dan Tran wrote: Strange I don't have a problem with maven-release build running with -Prun-its -D On Tue, Jan 27, 2015 at 11:20 AM, Benson Margulies wrote: On Tue, Jan 27, 2015 at 2:10 PM, Dan Tran wrote: Hi Benson By "many tests" are you refer to the incident at release plugin 2.5.1, or maven-core IT I'm guessing that the M-R-P integration tests are not the only plugin integration tests that care. I'm pretty sure I've run into this before. Thanks -D On Tue, Jan 27, 2015 at 10:28 AM, Benson Margulies < bimargul...@gmail.com> wrote: On Tue, Jan 27, 2015 at 1:16 PM, Dan Tran wrote: Hi Benson, What is your verdict? I vote for removing it from the publically facing doc. is there also a thought of removing it from the code? I guess if someone makes sure that all our many tests pass without it, fine with me. I should explain my passing reference to Aether. I wrote a little OSGi utility that uses Aether to fetch some dependencies, and I wanted it to get mirror definitions out of, well, $M2_HOME/conf/settings.xml. That probably counts as acute sloth on my part. Thanks -D On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies < bimargul...@gmail.com wrote: I know of two cases where it comes up. 1: some of our own ITs. Those aren't a reason for comprehensive doc. 2: an application I wrote for Aether :-) On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus wrote: -1 it's a problematic variable, removing it is a good idea IMO, and changing mvn version is indeed just a matter of updating your path. I've been hit many a time by an updated PATH pointing to a different mvn version than the one referenced by M2_HOME, which ends with NoClassDefFoundError or something like that IIRC. That's why I've personally been advising maven users I encounter to never ever set that variable for years. Cheers 2015-01-27 7:19 GMT+01:00 Anders Hammar : I would still suggest to make sure its documented somewhere. I find it incredibly useful to just change M2_HOME to simply switch Maven versions. +1, very useful but I guess it doesn't require the name M2_HOME. /Anders manfred Mirko Friedenhagen wrote on 26.01.2015 21:40: Dan, go ahead, I have not set this variable for years. Regards Mirko -- Sent from my mobile On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: Hi, Any objection to remove the need to setup M2_HOME env variable at maven download page? Thanks -Dan https://jira.codehaus.org/browse/MNGSITE-223 - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org -- Baptiste MATHUS - http://batmat.net Sauvez un arbre, Mangez un castor ! nbsp;! - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
My bad, it is not obvious it is from an experimental branch. However, even if this gets committed master, the configuration changes in that script may impact other distribution using M2_HOME. Sorry, I am a little side track here. -D On Tue, Jan 27, 2015 at 2:07 PM, Igor Fedorenko wrote: > You sure you linked the right commit? The commit you linked is from my > experimental branch and it does not change how mvn* scripts use M2_HOME > environment variable. > > -- > Regards, > Igor > > > On 2015-01-27 16:26, Dan Tran wrote: > >> Just see this change [1] at Maven core where the 'mvn' script get altered. >> >> Not sure about the impact of this change when using M2_HOME to support >> multiple is distributions. >> >> -Dan >> >> >> >> [1] >> https://git1-us-west.apache.org/repos/asf?p=maven.git;a= >> commitdiff;h=0a76e91b >> >> On Tue, Jan 27, 2015 at 11:38 AM, Dan Tran wrote: >> >> Strange I don't have a problem with maven-release build running with >>> -Prun-its >>> >>> -D >>> >>> On Tue, Jan 27, 2015 at 11:20 AM, Benson Margulies < >>> bimargul...@gmail.com> >>> wrote: >>> >>> On Tue, Jan 27, 2015 at 2:10 PM, Dan Tran wrote: > Hi Benson > > By "many tests" are you refer to the incident at release plugin 2.5.1, > or > maven-core IT > I'm guessing that the M-R-P integration tests are not the only plugin integration tests that care. I'm pretty sure I've run into this before. > Thanks > > -D > > On Tue, Jan 27, 2015 at 10:28 AM, Benson Margulies < > bimargul...@gmail.com> > wrote: > > On Tue, Jan 27, 2015 at 1:16 PM, Dan Tran wrote: >> >>> Hi Benson, >>> >>> What is your verdict? >>> >> >> I vote for removing it from the publically facing doc. is there also a >> thought of removing it from the code? I guess if someone makes sure >> that all our many tests pass without it, fine with me. >> >> I should explain my passing reference to Aether. >> >> I wrote a little OSGi utility that uses Aether to fetch some >> dependencies, and I wanted it to get mirror definitions out of, well, >> $M2_HOME/conf/settings.xml. That probably counts as acute sloth on my >> part. >> >> >> >>> Thanks >>> >>> -D >>> >>> On Tue, Jan 27, 2015 at 3:15 AM, Benson Margulies < >>> >> bimargul...@gmail.com > >>> wrote: >>> >>> I know of two cases where it comes up. 1: some of our own ITs. Those aren't a reason for comprehensive doc. 2: an application I wrote for Aether :-) On Tue, Jan 27, 2015 at 4:04 AM, Baptiste Mathus >>> wrote: > -1 it's a problematic variable, removing it is a good idea IMO, > and > changing mvn version is indeed just a matter of updating your > path. > > I've been hit many a time by an updated PATH pointing to a > different > mvn >> >>> version than the one referenced by M2_HOME, which ends with > NoClassDefFoundError or something like that IIRC. > That's why I've personally been advising maven users I encounter > to > never >> >>> ever set that variable for years. > > Cheers > > 2015-01-27 7:19 GMT+01:00 Anders Hammar : > > I would still suggest to make sure its documented somewhere. I >>> >> find it >> >>> incredibly useful to just change M2_HOME to simply switch Maven >>> >> versions. > >>> >> +1, very useful but I guess it doesn't require the name M2_HOME. >> >> /Anders >> >> >>> manfred >>> >>> Mirko Friedenhagen wrote on 26.01.2015 21:40: >>> >>> Dan, go ahead, I have not set this variable for years. Regards Mirko -- Sent from my mobile On Jan 27, 2015 5:52 AM, "Dan Tran" >>> wrote: > Hi, > > Any objection to remove the need to setup M2_HOME env > variable > at >> >>> maven >> >>> download page? > > > Thanks > > -Dan > > https://jira.codehaus.org/browse/MNGSITE-223 > > >>> >>> >>> >> - >> >>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >>> For additional commands, e-mail: dev-h...@maven.apache.org >>> >>> >>> >> -- >> Baptiste MATHUS - http://batma
Re: Remove M2_HOME setup from download page instructions
On 2015-01-27 17:35, Dan Tran wrote: My bad, it is not obvious it is from an experimental branch. However, even if this gets committed master, the configuration changes in that script may impact other distribution using M2_HOME. Can you explain how changes on that branch can impact other distributions using M2_HOME? The change is not supposed to affect M2_HOME in any way, so I must have overlooked something and want to correct it before I propose to merge this to master. -- Regards, Igor - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
If your changes are specific to 3.2.6, however If user has M2_HOME point to an older version MAVEN, would that be a problem? Thanks -D On Tue, Jan 27, 2015 at 3:01 PM, Igor Fedorenko wrote: > > > On 2015-01-27 17:35, Dan Tran wrote: > >> My bad, it is not obvious it is from an experimental branch. However, >> even >> if this gets committed master, the configuration changes in that script >> may >> impact other distribution using M2_HOME. >> >> > Can you explain how changes on that branch can impact other > distributions using M2_HOME? The change is not supposed to affect > M2_HOME in any way, so I must have overlooked something and want to > correct it before I propose to merge this to master. > > -- > Regards, > Igor > > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
I switch between versions all the time; this is useful. Sent from my iPhone On 27/01/2015, at 4:47 PM, "Manfred Moser" wrote: > I would still suggest to make sure its documented somewhere. I find it > incredibly useful to just change M2_HOME to simply switch Maven versions. > > manfred > > Mirko Friedenhagen wrote on 26.01.2015 21:40: > >> Dan, go ahead, I have not set this variable for years. >> >> Regards >> Mirko >> -- >> Sent from my mobile >> On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >> >>> Hi, >>> >>> Any objection to remove the need to setup M2_HOME env variable at maven >>> download page? >>> >>> >>> Thanks >>> >>> -Dan >>> >>> https://jira.codehaus.org/browse/MNGSITE-223 >>> >> > > > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
@Robert yup my bad for being somehow unclear. The -1 was answering to the fact that M2_HOME may be useful in some cases. So I'm indeed +1 for removing it from the docs. Cheers Le 27 janv. 2015 19:14, "Robert Scholte" a écrit : > @Baptiste, so I guess your vote is actually +1 to remove it from > documentation, right? > M2_HOME is automatically set by the shell or batch script. > > The M2_HOME variable is here used to easily switch between different Maven > distributions. But with this name this can indeed cause > NoClassDefFoundErrors. > For the majority of the community it's not interesting to have multiple > versions of Maven and to switch often. > So this M2_HOME might be confusing. Instead just add > apache-maven-3.x.x/bin to your path. > You have my +1 for this change. > > Also, there's no need to add JAVA_HOME/bin to the path. Maven picks it up > as an environment variable, it won't scan the path searching for the java > executable. So I'd like to see that removed as well. > > thanks, > Robert > > Op Tue, 27 Jan 2015 10:04:28 +0100 schreef Baptiste Mathus >: > > -1 it's a problematic variable, removing it is a good idea IMO, and >> changing mvn version is indeed just a matter of updating your path. >> >> I've been hit many a time by an updated PATH pointing to a different mvn >> version than the one referenced by M2_HOME, which ends with >> NoClassDefFoundError or something like that IIRC. >> That's why I've personally been advising maven users I encounter to never >> ever set that variable for years. >> >> Cheers >> >> 2015-01-27 7:19 GMT+01:00 Anders Hammar : >> >> > I would still suggest to make sure its documented somewhere. I find it >>> > incredibly useful to just change M2_HOME to simply switch Maven >>> versions. >>> > >>> >>> +1, very useful but I guess it doesn't require the name M2_HOME. >>> >>> /Anders >>> >>> > >>> > manfred >>> > >>> > Mirko Friedenhagen wrote on 26.01.2015 21:40: >>> > >>> > > Dan, go ahead, I have not set this variable for years. >>> > > >>> > > Regards >>> > > Mirko >>> > > -- >>> > > Sent from my mobile >>> > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >>> > > >>> > >> Hi, >>> > >> >>> > >> Any objection to remove the need to setup M2_HOME env variable at >>> maven >>> > >> download page? >>> > >> >>> > >> >>> > >> Thanks >>> > >> >>> > >> -Dan >>> > >> >>> > >> https://jira.codehaus.org/browse/MNGSITE-223 >>> > >> >>> > > >>> > >>> > >>> > - >>> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >>> > For additional commands, e-mail: dev-h...@maven.apache.org >>> > >>> > >>> >>> -- >>> Baptiste MATHUS - http://batmat.net >>> Sauvez un arbre, >>> Mangez un castor ! >>> nbsp;! >>> >> > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
So I guess the consensus is to remove M2_HOME from installation instructions and doc the specific usage of M2_HOME at FAQ? Thanks -D On Wed, Jan 28, 2015 at 9:02 AM, Baptiste Mathus wrote: > @Robert yup my bad for being somehow unclear. > The -1 was answering to the fact that M2_HOME may be useful in some cases. > > So I'm indeed +1 for removing it from the docs. > > Cheers > Le 27 janv. 2015 19:14, "Robert Scholte" a écrit : > > > @Baptiste, so I guess your vote is actually +1 to remove it from > > documentation, right? > > M2_HOME is automatically set by the shell or batch script. > > > > The M2_HOME variable is here used to easily switch between different > Maven > > distributions. But with this name this can indeed cause > > NoClassDefFoundErrors. > > For the majority of the community it's not interesting to have multiple > > versions of Maven and to switch often. > > So this M2_HOME might be confusing. Instead just add > > apache-maven-3.x.x/bin to your path. > > You have my +1 for this change. > > > > Also, there's no need to add JAVA_HOME/bin to the path. Maven picks it up > > as an environment variable, it won't scan the path searching for the java > > executable. So I'd like to see that removed as well. > > > > thanks, > > Robert > > > > Op Tue, 27 Jan 2015 10:04:28 +0100 schreef Baptiste Mathus < > m...@batmat.net > > >: > > > > -1 it's a problematic variable, removing it is a good idea IMO, and > >> changing mvn version is indeed just a matter of updating your path. > >> > >> I've been hit many a time by an updated PATH pointing to a different mvn > >> version than the one referenced by M2_HOME, which ends with > >> NoClassDefFoundError or something like that IIRC. > >> That's why I've personally been advising maven users I encounter to > never > >> ever set that variable for years. > >> > >> Cheers > >> > >> 2015-01-27 7:19 GMT+01:00 Anders Hammar : > >> > >> > I would still suggest to make sure its documented somewhere. I find > it > >>> > incredibly useful to just change M2_HOME to simply switch Maven > >>> versions. > >>> > > >>> > >>> +1, very useful but I guess it doesn't require the name M2_HOME. > >>> > >>> /Anders > >>> > >>> > > >>> > manfred > >>> > > >>> > Mirko Friedenhagen wrote on 26.01.2015 21:40: > >>> > > >>> > > Dan, go ahead, I have not set this variable for years. > >>> > > > >>> > > Regards > >>> > > Mirko > >>> > > -- > >>> > > Sent from my mobile > >>> > > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: > >>> > > > >>> > >> Hi, > >>> > >> > >>> > >> Any objection to remove the need to setup M2_HOME env variable at > >>> maven > >>> > >> download page? > >>> > >> > >>> > >> > >>> > >> Thanks > >>> > >> > >>> > >> -Dan > >>> > >> > >>> > >> https://jira.codehaus.org/browse/MNGSITE-223 > >>> > >> > >>> > > > >>> > > >>> > > >>> > - > >>> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > >>> > For additional commands, e-mail: dev-h...@maven.apache.org > >>> > > >>> > > >>> > >>> -- > >>> Baptiste MATHUS - http://batmat.net > >>> Sauvez un arbre, > >>> Mangez un castor ! > >>> nbsp;! > >>> > >> > > - > > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > > For additional commands, e-mail: dev-h...@maven.apache.org > > > > >
Re: Remove M2_HOME setup from download page instructions
+1 I think you need to deprecate something like that and not just yank it, but removing the doco is a good first step. I have M2_HOME set even through I don't technically need it but that's how I switch versions of Maven. I have M2_HOME set, it's a symlink, and i just flip the symlink to change versions of Maven. That's probably my quirky way of flipping versions but I've probably had that in there for 10 years. On Jan 28, 2015, at 12:57 PM, Dan Tran wrote: > So I guess the consensus is to remove M2_HOME from installation > instructions and doc the specific usage of M2_HOME at FAQ? > > Thanks > > -D > > On Wed, Jan 28, 2015 at 9:02 AM, Baptiste Mathus wrote: > >> @Robert yup my bad for being somehow unclear. >> The -1 was answering to the fact that M2_HOME may be useful in some cases. >> >> So I'm indeed +1 for removing it from the docs. >> >> Cheers >> Le 27 janv. 2015 19:14, "Robert Scholte" a écrit : >> >>> @Baptiste, so I guess your vote is actually +1 to remove it from >>> documentation, right? >>> M2_HOME is automatically set by the shell or batch script. >>> >>> The M2_HOME variable is here used to easily switch between different >> Maven >>> distributions. But with this name this can indeed cause >>> NoClassDefFoundErrors. >>> For the majority of the community it's not interesting to have multiple >>> versions of Maven and to switch often. >>> So this M2_HOME might be confusing. Instead just add >>> apache-maven-3.x.x/bin to your path. >>> You have my +1 for this change. >>> >>> Also, there's no need to add JAVA_HOME/bin to the path. Maven picks it up >>> as an environment variable, it won't scan the path searching for the java >>> executable. So I'd like to see that removed as well. >>> >>> thanks, >>> Robert >>> >>> Op Tue, 27 Jan 2015 10:04:28 +0100 schreef Baptiste Mathus < >> m...@batmat.net : >>> >>> -1 it's a problematic variable, removing it is a good idea IMO, and changing mvn version is indeed just a matter of updating your path. I've been hit many a time by an updated PATH pointing to a different mvn version than the one referenced by M2_HOME, which ends with NoClassDefFoundError or something like that IIRC. That's why I've personally been advising maven users I encounter to >> never ever set that variable for years. Cheers 2015-01-27 7:19 GMT+01:00 Anders Hammar : > I would still suggest to make sure its documented somewhere. I find >> it >> incredibly useful to just change M2_HOME to simply switch Maven > versions. >> > > +1, very useful but I guess it doesn't require the name M2_HOME. > > /Anders > >> >> manfred >> >> Mirko Friedenhagen wrote on 26.01.2015 21:40: >> >>> Dan, go ahead, I have not set this variable for years. >>> >>> Regards >>> Mirko >>> -- >>> Sent from my mobile >>> On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >>> Hi, Any objection to remove the need to setup M2_HOME env variable at > maven download page? Thanks -Dan https://jira.codehaus.org/browse/MNGSITE-223 >>> >> >> >> - >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> > > -- > Baptiste MATHUS - http://batmat.net > Sauvez un arbre, > Mangez un castor ! > nbsp;! > >>> - >>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >>> For additional commands, e-mail: dev-h...@maven.apache.org >>> >>> >> Thanks, Jason -- Jason van Zyl Founder, Takari and Apache Maven http://twitter.com/jvanzyl http://twitter.com/takari_io - Our achievements speak for themselves. What we have to keep track of are our failures, discouragements and doubts. We tend to forget the past difficulties, the many false starts, and the painful groping. We see our past achievements as the end result of a clean forward thrust, and our present difficulties as signs of decline and decay. -- Eric Hoffer, Reflections on the Human Condition - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
I see. Yes, this would be a problem. And I think there is already similar incompatibility between maven 2.x and 3.x scripts (launcher class name changed in 3.x). Personally, I never use M2_HOME to switch between maven versions, so I wouldn't mind if it was removed completely. If we want M2_HOME to work reliably, then I think we'll have to rework mvn script to basically relaunch itself from M2_HOME/bin/mvn. -- Regards, Igor On 2015-01-27 18:36, Dan Tran wrote: If your changes are specific to 3.2.6, however If user has M2_HOME point to an older version MAVEN, would that be a problem? Thanks -D On Tue, Jan 27, 2015 at 3:01 PM, Igor Fedorenko wrote: On 2015-01-27 17:35, Dan Tran wrote: My bad, it is not obvious it is from an experimental branch. However, even if this gets committed master, the configuration changes in that script may impact other distribution using M2_HOME. Can you explain how changes on that branch can impact other distributions using M2_HOME? The change is not supposed to affect M2_HOME in any way, so I must have overlooked something and want to correct it before I propose to merge this to master. -- Regards, Igor - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Remove M2_HOME setup from download page instructions
Hi Igor, That confirms the need to deprecate M2_HOME, I will remove it from installation doc first. Will need to talk to Sonatype to remove it from its book Thanks -Dan On Wed, Jan 28, 2015 at 11:58 AM, Igor Fedorenko wrote: > I see. Yes, this would be a problem. And I think there is already > similar incompatibility between maven 2.x and 3.x scripts (launcher > class name changed in 3.x). Personally, I never use M2_HOME to switch > between maven versions, so I wouldn't mind if it was removed completely. > If we want M2_HOME to work reliably, then I think we'll have to rework > mvn script to basically relaunch itself from M2_HOME/bin/mvn. > > -- > Regards, > Igor > > > On 2015-01-27 18:36, Dan Tran wrote: > >> If your changes are specific to 3.2.6, however If user has M2_HOME point >> to >> an older version MAVEN, would that be a problem? >> >> Thanks >> >> -D >> >> On Tue, Jan 27, 2015 at 3:01 PM, Igor Fedorenko >> wrote: >> >> >>> >>> On 2015-01-27 17:35, Dan Tran wrote: >>> >>> My bad, it is not obvious it is from an experimental branch. However, even if this gets committed master, the configuration changes in that script may impact other distribution using M2_HOME. Can you explain how changes on that branch can impact other >>> distributions using M2_HOME? The change is not supposed to affect >>> M2_HOME in any way, so I must have overlooked something and want to >>> correct it before I propose to merge this to master. >>> >>> -- >>> Regards, >>> Igor >>> >>> >>> - >>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >>> For additional commands, e-mail: dev-h...@maven.apache.org >>> >>> >>> >> > - > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org > For additional commands, e-mail: dev-h...@maven.apache.org > >
Re: Remove M2_HOME setup from download page instructions
I use a similar approach to Dan's. I just have ~/lib/apache-mavem-VERSION and symlink the mvn shell script to ~/bin/mvnVERSION_WITHOUT_DOTS. Works flawlessly. Regards Mirko -- http://illegalstateexception.blogspot.com/ https://github.com/mfriedenhagen/ (http://osrc.dfm.io/mfriedenhagen) https://bitbucket.org/mfriedenhagen/ On Tue, Jan 27, 2015 at 9:15 AM, Dan Tran wrote: > IMO, M2_HOME is no longer a required env starting 2.2.1, and there for it > is used mainly for the exact use case that Manfred mentioned. I myself use > a set a wrapper scripts ( mvn221, mvn311, etc) since it is much easier to > remember. > > I also got bitten a number of times where user had M2_HOME set, and install > new version of Maven without reset M2_HOME, and fail mysteriously (support > call) > > here is the link to Benson's issue, it is not conclusive > > http://maven.40175.n5.nabble.com/VOTE-Release-Apache-Maven-Release-Plugin-version-2-5-1-td5805498.html > > > > -Dan > > > > > > On Mon, Jan 26, 2015 at 10:47 PM, Kristian Rosenvold < > kristian.rosenv...@gmail.com> wrote: > >> I seem to recall Benson ran into a case with either release or site >> where it was still required no too long ago ? >> >> Kristian >> >> >> 2015-01-27 7:19 GMT+01:00 Anders Hammar : >> >> I would still suggest to make sure its documented somewhere. I find it >> >> incredibly useful to just change M2_HOME to simply switch Maven >> versions. >> >> >> > >> > +1, very useful but I guess it doesn't require the name M2_HOME. >> > >> > /Anders >> > >> >> >> >> manfred >> >> >> >> Mirko Friedenhagen wrote on 26.01.2015 21:40: >> >> >> >> > Dan, go ahead, I have not set this variable for years. >> >> > >> >> > Regards >> >> > Mirko >> >> > -- >> >> > Sent from my mobile >> >> > On Jan 27, 2015 5:52 AM, "Dan Tran" wrote: >> >> > >> >> >> Hi, >> >> >> >> >> >> Any objection to remove the need to setup M2_HOME env variable at >> maven >> >> >> download page? >> >> >> >> >> >> >> >> >> Thanks >> >> >> >> >> >> -Dan >> >> >> >> >> >> https://jira.codehaus.org/browse/MNGSITE-223 >> >> >> >> >> > >> >> >> >> >> >> - >> >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> >> >> >> >> - >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> For additional commands, e-mail: dev-h...@maven.apache.org >> >> - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
