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* Remove common-cmds.hNguyễn Thái Ngọc Duy2018-05-101-11/+6
| | | | | | | | | After the last patch, common-cmds.h is no longer used (and it was actually broken). Remove all related code. command-list.h will take its place from now on. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* help: use command-list.h for common command listNguyễn Thái Ngọc Duy2018-05-101-2/+2
| | | | | | | | | | | | | | | The previous commit added code generation for all_cmd_desc[] which includes almost everything we need to generate common command list. Convert help code to use that array instead and drop common_cmds[] array. The description of each common command group is removed from command-list.txt. This keeps this file format simpler. common-cmds.h will not be generated correctly after this change due to the command-list.txt format change. But it does not matter and common-cmds.h will be removed. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* generate-cmds.sh: export all commands to command-list.hNguyễn Thái Ngọc Duy2018-05-101-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current generate-cmds.sh generates just enough to print "git help" output. That is, it only extracts help text for common commands. The script is now updated to extract help text for all commands and keep command classification a new file, command-list.h. This will be useful later: - "git help -a" could print a short summary of all commands instead of just the common ones. - "git" could produce a list of commands of one or more category. One of its use is to reduce another command classification embedded in git-completion.bash. The new file can be generated but is not used anywhere yet. The plan is we migrate away from common-cmds.h. Then we can kill off common-cmds.h build rules and generation code (and also delete duplicate content in command-list.h which we keep for now to not mess generate-cmds.sh up too much). PS. The new fixed column requirement on command-list.txt is technically not needed. But it helps simplify the code a bit at this stage. We could lift this restriction later if we want to. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'nd/combined-test-helper'Junio C Hamano2018-04-111-37/+42
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Small test-helper programs have been consolidated into a single binary. * nd/combined-test-helper: (36 commits) t/helper: merge test-write-cache into test-tool t/helper: merge test-wildmatch into test-tool t/helper: merge test-urlmatch-normalization into test-tool t/helper: merge test-subprocess into test-tool t/helper: merge test-submodule-config into test-tool t/helper: merge test-string-list into test-tool t/helper: merge test-strcmp-offset into test-tool t/helper: merge test-sigchain into test-tool t/helper: merge test-sha1-array into test-tool t/helper: merge test-scrap-cache-tree into test-tool t/helper: merge test-run-command into test-tool t/helper: merge test-revision-walking into test-tool t/helper: merge test-regex into test-tool t/helper: merge test-ref-store into test-tool t/helper: merge test-read-cache into test-tool t/helper: merge test-prio-queue into test-tool t/helper: merge test-path-utils into test-tool t/helper: merge test-online-cpus into test-tool t/helper: merge test-mktemp into test-tool t/helper: merge (unused) test-mergesort into test-tool ...
| * t/helper: merge test-write-cache into test-toolnd/combined-test-helperNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-wildmatch into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-urlmatch-normalization into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-subprocess into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-submodule-config into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-string-list into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-strcmp-offset into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-sigchain into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-sha1-array into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-scrap-cache-tree into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-run-command into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-revision-walking into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-regex into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-ref-store into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-read-cache into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-prio-queue into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-path-utils into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-online-cpus into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-mktemp into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge (unused) test-mergesort into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge (unused) test-match-trees into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-index-version into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-hashmap into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-genrandom into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-example-decorate into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-dump-split-index into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-dump-cache-tree into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-drop-caches into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge (unused) test-delta into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-date into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-ctype into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-config into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-lazy-init-name-hash into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+1
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-sha1 into test-toolNguyễn Thái Ngọc Duy2018-03-271-2/+2
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: merge test-chmtime into test-toolNguyễn Thái Ngọc Duy2018-03-271-1/+2
| | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * t/helper: add an empty test-tool programNguyễn Thái Ngọc Duy2018-03-271-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will become an umbrella program that absorbs most [1] t/helper programs in. By having a single executable binary we reduce disk usage (libgit.a is replicated by every t/helper program) and shorten link time a bit. Running "make --jobs=1; du -sh t/helper" with ccache fully populated, it takes 27 seconds and 277MB at the beginning of this series, 17 seconds and 42MB at the end. [1] There are a couple programs that will not become part of test-tool: test-line-buffer and test-svn-fe have extra dependencies and test-fake-ssh's program name has to be a single word for some ssh tests. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'ab/install-symlinks'Junio C Hamano2018-04-101-17/+35
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The build procedure learned to optionally use symbolic links (instead of hardlinks and copies) to install "git-foo" for built-in commands, whose binaries are all identical. * ab/install-symlinks: Makefile: optionally symlink libexec/git-core binaries to bin/git Makefile: add a gitexecdir_relative variable Makefile: fix broken bindir_relative variable
| * | Makefile: optionally symlink libexec/git-core binaries to bin/gitab/install-symlinksÆvar Arnfjörð Bjarmason2018-03-151-15/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a INSTALL_SYMLINKS option which if enabled, changes the default hardlink installation method to one where the relevant binaries in libexec/git-core are symlinked back to ../../bin, instead of being hardlinked. This new option also overrides the behavior of the existing NO_*_HARDLINKS variables which in some cases would produce symlinks within to libexec/, e.g. "git-add" symlinked to "git" which would be copy of the "git" found in bin/, now "git-add" in libexec/ is always going to be symlinked to the "git" found in the bin/ directory. This option is being added because: 1) I think it makes what we're doing a lot more obvious. E.g. I'd never noticed that the libexec binaries were really just hardlinks since e.g. ls(1) won't show that in any obvious way. You need to start stat(1)-ing things and look at the inodes to see what's going on. 2) Some tools have very crappy support for hardlinks, e.g. the Git shipped with GitLab is much bigger than it should be because they're using a chef module that doesn't know about hardlinks, see https://github.com/chef/omnibus/issues/827 I've also ran into other related issues that I think are explained by this, e.g. compiling git with debugging and rpm refusing to install a ~200MB git package with 2GB left on the FS, I think that was because it doesn't consider hardlinks, just the sum of the byte size of everything in the package. As for the implementation, the "../../bin" noted above will vary given some given some values of "../.." and "bin" depending on the depth of the gitexecdir relative to the destdir, and the "bindir" target, e.g. setting "bindir=/tmp/git/binaries gitexecdir=foo/bar/baz" will do the right thing and produce this result: $ file /tmp/git/foo/bar/baz/git-add /tmp/git/foo/bar/baz/git-add: symbolic link to ../../../binaries/git Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | Makefile: add a gitexecdir_relative variableÆvar Arnfjörð Bjarmason2018-03-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This variable will be e.g. "libexec/git-core" if gitexecdir=/tmp/git/libexec/git-core is given. It'll be used by a subsequent change. This is stolen from the yet-to-be integrated (needs resubmission) "Makefile: add Perl runtime prefix support" patch on the mailing list. See <20180108030239.92036-3-dnj@google.com> (https://public-inbox.org/git/20180108030239.92036-3-dnj@google.com/). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | Makefile: fix broken bindir_relative variableÆvar Arnfjörð Bjarmason2018-03-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the bindir_relative variable to work like the other *_relative variables, which are computed as a function of the absolute path. Before this change, supplying e.g. bindir=/tmp/git/binaries to the Makefile would yield a bindir_relative of just "bin", as opposed to "binaries". This logic was originally added back in 026fa0d5ad ("Move computation of absolute paths from Makefile to runtime (in preparation for RUNTIME_PREFIX)", 2009-01-18), then later in 971f85388f ("Makefile: make mandir, htmldir and infodir absolute", 2013-02-24) when more *_relative variables were added those new variables didn't have this bug, but bindir_relative was never fixed. There is a small change in behavior here, which is that setting bindir_relative as an argument to the Makefile won't work anymore, I think that's fine, since this was always intended as an internal variable (e.g. INSTALL documents bindir=*, not bindir_relative=*). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'ab/pcre-v2'Junio C Hamano2018-04-101-13/+13
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Git can be built to use either v1 or v2 of the PCRE library, and so far, the build-time configuration USE_LIBPCRE=YesPlease instructed the build procedure to use v1, but now it means v2. USE_LIBPCRE1 and USE_LIBPCRE2 can be used to explicitly choose which version to use, as before. * ab/pcre-v2: Makefile: make USE_LIBPCRE=YesPlease mean v2, not v1 configure: detect redundant --with-libpcre & --with-libpcre1 configure: fix a regression in PCRE v1 detection
| * | Makefile: make USE_LIBPCRE=YesPlease mean v2, not v1ab/pcre-v2Ævar Arnfjörð Bjarmason2018-03-141-13/+13
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the USE_LIBPCRE flag from being an alias for USE_LIBPCRE1 to being an alias for USE_LIBPCRE2. When support for v2 was added in my 94da9193a6 ("grep: add support for PCRE v2", 2017-06-01) the existing USE_LIBPCRE flag was left as meaning v1, with a note that this would likely change in a future release. That optional support for v2 first made it into Git version 2.14.0. The PCRE v2 support has been shown to be stable, and the upstream PCRE project is highly encouraging downstream users to move to v2, so it makes sense to give packagers of Git who haven't heard the news about PCRE v2 a further nudge to move to v2. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'ab/perl-fixes'Junio C Hamano2018-03-151-1/+15
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean-up to various pieces of Perl code we have. * ab/perl-fixes: perl Git::LoadCPAN: emit better errors under NO_PERL_CPAN_FALLBACKS Makefile: add NO_PERL_CPAN_FALLBACKS knob perl: move the perl/Git/FromCPAN tree to perl/FromCPAN perl: generalize the Git::LoadCPAN facility perl: move CPAN loader wrappers to another namespace perl: update our copy of Mail::Address perl: update our ancient copy of Error.pm git-send-email: unconditionally use Net::{SMTP,Domain} Git.pm: hard-depend on the File::{Temp,Spec} modules gitweb: hard-depend on the Digest::MD5 5.8 module Git.pm: add the "use warnings" pragma Git.pm: remove redundant "use strict" from sub-package perl: *.pm files should not have the executable bit
| * perl Git::LoadCPAN: emit better errors under NO_PERL_CPAN_FALLBACKSab/perl-fixesÆvar Arnfjörð Bjarmason2018-03-051-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before my 20d2a30f8f ("Makefile: replace perl/Makefile.PL with simple make rules", 2017-12-10) on an OS package that removed the private-Error.pm copy we carried around manually removing the OS's Error.pm would yield: $ git add -p Can't locate Error.pm in @INC (you may need to install the Error module) [...] Now, before this change we'll instead emit this more cryptic error: $ git add -p BUG: '/usr/share/perl5/Git/FromCPAN' should be a directory! at /usr/share/perl5/Git/Error.pm line 36. This is a confusing error. Now if the new NO_PERL_CPAN_FALLBACKS option is specified and we can't find the module we'll instead emit: $ /tmp/git/bin/git add -p BUG: The 'Error' module is not here, but NO_PERL_CPAN_FALLBACKS was set! [...] Where [...] is the lengthy explanation seen in the change below, which explains what the potential breakage is, and how to fix it. The reason for checking @@NO_PERL_CPAN_FALLBACKS@@] against the empty string in Perl is as opposed to checking for a boolean value is that that's (as far as I can tell) make's idea of a string that's set, and e.g. NO_PERL_CPAN_FALLBACKS=0 is enough to set NO_PERL_CPAN_FALLBACKS. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * Makefile: add NO_PERL_CPAN_FALLBACKS knobTodd Zullinger2018-03-051-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We include some perl modules which are not part of the core perl install, as a convenience. This allows us to rely on those modules in our perl-based tools and scripts without requiring users to install the modules from CPAN or their operating system packages. Users whose operating system provides these modules and packagers of Git often don't want to ship or use these bundled modules. Allow these users to set NO_PERL_CPAN_FALLBACKS to avoid installing the bundled modules. Signed-off-by: Todd Zullinger <tmz@pobox.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * perl: move the perl/Git/FromCPAN tree to perl/FromCPANÆvar Arnfjörð Bjarmason2018-03-051-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the CPAN modules that have lived under perl/Git/FromCPAN since my 20d2a30f8f ("Makefile: replace perl/Makefile.PL with simple make rules", 2017-12-10) to perl/FromCPAN. A subsequent change will teach the Makefile to only install these copies of CPAN modules if a flag that distro packagers would like to set isn't set. Due to how the wildcard globbing is being done it's much easier to accomplish that if they're moved to their own directory. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>