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path: root/contrib/subtree/git-subtree.sh
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2018-10-07subtree: use commits before rejoins for splitsStrain, Roger L
Adds recursive evaluation of parent commits which were not part of the initial commit list when performing a split. Split expects all relevant commits to be reachable from the target commit but not reachable from any previous rejoins. However, a branch could be based on a commit prior to a rejoin, then later merged back into the current code. In this case, a parent to the commit will not be present in the initial list of commits, trigging an "incorrect order" warning. Previous behavior was to consider that commit to have no parent, creating an original commit containing all subtree content. This commit is not present in an existing subtree commit graph, changing commit hashes and making pushing to a subtree repo impossible. New behavior will recursively check these unexpected parent commits to track them back to either an earlier rejoin, or a true original commit. The generated synthetic commits will properly match previously-generated commits, allowing successful pushing to a prior subtree repo. Signed-off-by: Strain, Roger L <roger.strain@swri.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07subtree: make --ignore-joins pay attention to addsStrain, Roger L
Changes the behavior of --ignore-joins to always consider a subtree add commit, and ignore only splits and squashes. The --ignore-joins option is documented to ignore prior --rejoin commits. However, it additionally ignored subtree add commits generated when a subtree was initially added to a repo. Due to the logic which determines whether a commit is a mainline commit or a subtree commit (namely, the presence or absence of content in the subtree prefix) this causes commits before the initial add to appear to be part of the subtree. An --ignore-joins split would therefore consider those commits part of the subtree history and include them at the beginning of the synthetic history, causing the resulting hashes to be incorrect for all later commits. Signed-off-by: Strain, Roger L <roger.strain@swri.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07subtree: refactor split of a commit into standalone methodStrain, Roger L
In a particularly complex repo, subtree split was not creating compatible splits for pushing back to a separate repo. Addressing one of the issues requires recursive handling of parent commits that were not initially considered by the algorithm. This commit makes no functional changes, but relocates the code to be called recursively into a new method to simply comparisons of later commits. Signed-off-by: Strain, Roger L <roger.strain@swri.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-23subtree: fix add and pull for GPG-signed commitsStephen R Guglielmo
If log.showsignature is true (or --show-signature is passed) while performing a `subtree add` or `subtree pull`, the command fails. toptree_for_commit() calls `log` and passes the output to `commit-tree`. If this output shows the GPG signature data, `commit-tree` throws a fatal error. This commit fixes the issue by adding --no-show-signature to `log` calls in a few places, as well as using the more appropriate `rev-parse` instead where possible. Signed-off-by: Stephen R Guglielmo <srg@guglielmo.us> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-27subtree: adjust function definitions to match CodingGuidelinesDavid Aguilar
We prefer a space between the function name and the parentheses, and no space inside the parentheses. The opening "{" should also be on the same line. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-27subtree: adjust style to match CodingGuidelinesDavid Aguilar
Prefer "test" over "[ ... ]", use double-quotes around variables, break long lines, and properly indent "case" statements. Helped-by: Johannes Sixt <j6t@kdbg.org> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-26subtree: fix "git subtree split --rejoin"David Aguilar
"git merge" in v2.9 prevents merging unrelated histories. "git subtree split --rejoin" creates unrelated histories when creating a split repo from a raw sub-directory that did not originate from an invocation of "git subtree add". Restore the original behavior by passing --allow-unrelated-histories when merging subtrees. This ensures that the synthetic history created by "git subtree split" can be merged. Add a test to ensure that this feature works as advertised. Reported-by: Brett Cundal <brett.cundal@iugome.com> Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-03Merge branch 'dw/subtree-split-do-not-drop-merge'Junio C Hamano
The "split" subcommand of "git subtree" (in contrib/) incorrectly skipped merges when it shouldn't, which was corrected. * dw/subtree-split-do-not-drop-merge: contrib/subtree: fix "subtree split" skipped-merge bug
2016-01-22Merge branch 'rm/subtree-unwrap-tags'Junio C Hamano
"git subtree" (in contrib/) records the tag object name in the commit log message when a subtree is added using a tag, without peeling it down to the underlying commit. The tag needs to be peeled when "git subtree split" wants to work on the commit, but the command forgot to do so. * rm/subtree-unwrap-tags: contrib/subtree: unwrap tag refs
2016-01-20contrib/subtree: fix "subtree split" skipped-merge bugDave Ware
'git subtree split' can incorrectly skip a merge even when both parents act on the subtree, provided the merge results in a tree identical to one of the parents. Fix by copying the merge if at least one parent is non-identical, and the non-identical parent is not an ancestor of the identical parent. Also, add a test case which checks that a descendant remains a descendent on the subtree in this case. Signed-off-by: Dave Ware <davidw@realtimegenomics.com> Reviewed-by: David A. Greene <greened@obbligato.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-24contrib/subtree: unwrap tag refsRob Mayoff
If a subtree was added using a tag ref, the tag ref is stored in the subtree commit message instead of the underlying commit's ref. To split or push subsequent changes to the subtree, the subtree command needs to unwrap the tag ref. This patch makes it do so. The problem was described in a message to the mailing list from Junio C Hamano dated 29 Apr 2014, with the subject "Re: git subtree issue in more recent versions". The archived message can be found at <http://comments.gmane.org/gmane.comp.version-control.git/247503>. Signed-off-by: Rob Mayoff <mayoff@dqd.com> Signed-off-by: Jeff King <peff@peff.net>
2015-11-13contrib/subtree: Handle '--prefix' argument with a slash appendedTechlive Zheng
'git subtree merge' will fail if the argument of '--prefix' has a slash appended. Signed-off-by: Techlive Zheng <techlivezheng@gmail.com> Signed-off-by: David A. Greene <greened@obbligato.org> Signed-off-by: Jeff King <peff@peff.net>
2015-09-08contrib/subtree: respect spaces in a repository pathAlexey Shumkin
Remote repository may have spaces in its path, so take it into account. Also, as far as there are no tests for the `push` command, add them. Signed-off-by: Alexey Shumkin <Alex.Crezoff@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-08t7900-subtree: test the "space in a subdirectory name" caseAlexey Shumkin
In common case there can be spaces in a subdirectory name. Change tests accorgingly to this statement. Also, as far as a call to the `rejoin_msg` function (in `cmd_split`) does not take into account such a case this patch fixes commit message when `--rejoin` option is set . Besides, as `fixnl` and `multiline` functions did not take into account the "new" tested "space in a subdirectory name" case they become unused and redundant, so they are removed. Signed-off-by: Alexey Shumkin <Alex.Crezoff@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-03Merge branch 'da/subtree-date-confusion'Junio C Hamano
"git subtree" (in contrib/) depended on "git log" output to be stable, which was a no-no. Apply a workaround to force a particular date format. * da/subtree-date-confusion: contrib/subtree: ignore log.date configuration
2015-07-23contrib/subtree: ignore log.date configurationDavid Aguilar
git-subtree's log format string uses "%ad" and "%cd", which respect the user's configured log.date value. This is problematic for git-subtree because it needs to use real dates so that copied commits come through unchanged. Add a test and tweak the format strings to use %aD and %cD so that the default date format is used instead. Reported-by: Bryan Jacobs <b@q3q.us> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-22Merge branch 'dl/subtree-avoid-tricky-echo'Junio C Hamano
"git subtree" script (in contrib/) used "echo -n" to produce progress messages in a non-portable way. * dl/subtree-avoid-tricky-echo: contrib/subtree: portability fix for string printing
2015-05-08contrib/subtree: portability fix for string printingDanny Lin
'echo -n' is not portable, but this script used it as a way to give a string followed by a carriage return for progress messages. Introduce a new helper shell function "progress" and use printf as a more portable way to do this. As a side effect, this makes it unnecessary to have a raw CR in our source, which can be munged in some shells. For example, MsysGit trims CR before executing a shell script file in order to make it work right on Windows even if it uses CRLF as linefeeds. While at it, replace "echo" using printf in debug() and say() to eliminate the temptation of reintroducing the same bug. Signed-off-by: Danny Lin <danny0838@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-07contrib/subtree: there's no push --squashDanny Lin
The documentation says that --squash is for 'add', 'merge', 'pull' and 'push', while --squash actually doesn't change the behavior of 'push'. Correct the documentation. Signed-off-by: Danny Lin <danny0838@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-13contrib/subtree: allow adding an annotated tagJames Denholm
cmd_add_commit() is passed FETCH_HEAD by cmd_add_repository, which is then rev-parsed into an object name. However, if the user is fetching a tag rather than a branch HEAD, such as by executing: $ git subtree add -P oldGit https://github.com/git/git.git tags/v1.8.0 the object name refers to a tag and is never peeled, and the git commit-tree call (line 561) slaps us in the face because it doesn't peel tags to commits. Because peeling a committish doesn't do anything if it's already a commit, fix by peeling the object name before assigning it to $rev using peel_committish() from git:git-sh-setup.sh, a pre-existing dependency of git-subtree. Reported-by: Kevin Cagle <kcagle@micron.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: James Denholm <nod.helm@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-17subtree: initialize "prefix" variableJeff King
We parse the "--prefix" command-line option into the "$prefix" shell variable. However, if we do not see such an option, the variable is left with whatever value it had in the environment. We should initialize it to a known value, like we do for other variables. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-13subtree: fix argument validation in add/pull/pushAnthony Baire
When working with a remote repository add/pull/push do not accept a <refspec> as parameter but just a <ref>. They should accept any well-formatted ref name. This patch: - relaxes the check the <ref> argument in "git subtree add <repo>" (previous code would not accept a ref name that does not exist locally too, new code only ensures that the ref is well formatted) - add the same check in "git subtree pull/push" + check the number of parameters - update the doc to use <ref> instead of <refspec> Signed-off-by: Anthony Baire <Anthony.Baire@irisa.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-01Merge branch 'lf/echo-n-is-not-portable'Junio C Hamano
* lf/echo-n-is-not-portable: Avoid using `echo -n` anywhere
2013-07-29Avoid using `echo -n` anywhereLukas Fleischer
`echo -n` is non-portable. The POSIX specification says: Conforming applications that wish to do prompting without <newline> characters or that could possibly be expecting to echo a -n, should use the printf utility derived from the Ninth Edition system. Since all of the affected shell scripts use a POSIX shell shebang, replace `echo -n` invocations with printf. Signed-off-by: Lukas Fleischer <git@cryptocrack.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-05Merge branch 'dm/unbash-subtree'Junio C Hamano
It turns out that git-subtree script does not have to be run with bash. * dm/unbash-subtree: contrib/git-subtree: Use /bin/sh interpreter instead of /bin/bash
2013-05-21contrib/git-subtree: Use /bin/sh interpreter instead of /bin/bashDmitry Marakasov
Use /bin/sh interpreter instead of /bin/bash for contrib/git-subtree: it's required for systems which don't use bash by default (for example, FreeBSD), while there seem to be no bashisms in the script (confirmed by looking through the source and tesing subtree functionality with FreeBSD's /bin/sh) to require specifically bash and not the generic posix shell. Signed-off-by: Dmitry Marakasov <amdmi3@amdmi3.ru> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-01contrib/subtree: don't delete remote branches if split failsJohn Keeping
When using "git subtree push" to split out a subtree and push it to a remote repository, we do not detect if the split command fails which causes the LHS of the refspec to be empty, deleting the remote branch. Fix this by pulling the result of the split command into a variable so that we can die if the command fails. Reported-by: Steffen Jaeckel <steffen.jaeckel@stzedn.de> Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-05contrib/subtree: fix synopsisDavid A. Greene
Fix the documentation of add to show that a repository can be specified along with a commit. Suggested by Yann Dirson <dirson@bertin.fr>. Signed-off-by: David A. Greene <greened@obbligato.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-05contrib/subtree: better error handling for 'subtree add'David A. Greene
Check refspecs for validity before passing them on to other commands. This lets us generate more helpful error messages. Signed-off-by: David A. Greene <greened@obbligato.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-05contrib/subtree: use %B for split subject/bodyTechlive Zheng
Use %B to format the commit message and body to avoid an extra newline if a commit only has a subject line. Signed-off-by: Techlive Zheng <techlivezheng@gmail.com> Signed-off-by: David A. Greene <greened@obbligato.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-09Add 'contrib/subtree/' from commit 'd3a04e06c77d57978bb5230361c64946232cc346'David A. Greene
git-subtree-dir: contrib/subtree git-subtree-mainline: e8dde3e5f9ddb7cf95a6ff3cea6cf07c3a2db80d git-subtree-split: d3a04e06c77d57978bb5230361c64946232cc346