196 lines
6.9 KiB
Plaintext
196 lines
6.9 KiB
Plaintext
Description
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^^^^^^^^^^^
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When specifying `--tool=vimdiff` in `git mergetool` Git will open Vim with a 4
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windows layout distributed in the following way:
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....
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------------------------------------------
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| LOCAL | BASE | REMOTE |
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------------------------------------------
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| MERGED |
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------------------------------------------
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....
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`LOCAL`, `BASE` and `REMOTE` are read-only buffers showing the contents of the
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conflicting file in specific commits ("commit you are merging into", "common
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ancestor commit" and "commit you are merging from" respectively)
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`MERGED` is a writable buffer where you have to resolve the conflicts (using the
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other read-only buffers as a reference). Once you are done, save and exit Vim as
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usual (`:wq`) or, if you want to abort, exit using `:cq`.
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Layout configuration
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^^^^^^^^^^^^^^^^^^^^
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You can change the windows layout used by Vim by setting configuration variable
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`mergetool.vimdiff.layout` which accepts a string where the following separators
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have special meaning:
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- `+` is used to "open a new tab"
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- `,` is used to "open a new vertical split"
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- `/` is used to "open a new horizontal split"
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- `@` is used to indicate the file containing the final version after
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solving the conflicts. If not present, `MERGED` will be used by default.
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The precedence of the operators is as follows (you can use parentheses to change
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it):
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`@` > `+` > `/` > `,`
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Let's see some examples to understand how it works:
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* `layout = "(LOCAL,BASE,REMOTE)/MERGED"`
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+
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--
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This is exactly the same as the default layout we have already seen.
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Note that `/` has precedence over `,` and thus the parenthesis are not
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needed in this case. The next layout definition is equivalent:
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layout = "LOCAL,BASE,REMOTE / MERGED"
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--
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* `layout = "LOCAL,MERGED,REMOTE"`
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+
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--
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If, for some reason, we are not interested in the `BASE` buffer.
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....
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------------------------------------------
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| LOCAL | MERGED | REMOTE |
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------------------------------------------
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....
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--
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* `layout = "MERGED"`
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+
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--
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Only the `MERGED` buffer will be shown. Note, however, that all the other
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ones are still loaded in vim, and you can access them with the "buffers"
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command.
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....
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------------------------------------------
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| MERGED |
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------------------------------------------
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....
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--
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* `layout = "@LOCAL,REMOTE"`
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+
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--
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When `MERGED` is not present in the layout, you must "mark" one of the
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buffers with an asterisk. That will become the buffer you need to edit and
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save after resolving the conflicts.
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....
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------------------------------------------
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| LOCAL | REMOTE |
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------------------------------------------
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....
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--
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* `layout = "LOCAL,BASE,REMOTE / MERGED + BASE,LOCAL + BASE,REMOTE"`
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+
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--
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Three tabs will open: the first one is a copy of the default layout, while
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the other two only show the differences between (`BASE` and `LOCAL`) and
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(`BASE` and `REMOTE`) respectively.
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....
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------------------------------------------
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| <TAB #1> | TAB #2 | TAB #3 | |
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------------------------------------------
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| LOCAL | BASE | REMOTE |
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------------------------------------------
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| MERGED |
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------------------------------------------
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....
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....
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------------------------------------------
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| TAB #1 | <TAB #2> | TAB #3 | |
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------------------------------------------
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| BASE | LOCAL |
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------------------------------------------
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....
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....
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------------------------------------------
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| TAB #1 | TAB #2 | <TAB #3> | |
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------------------------------------------
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| BASE | REMOTE |
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------------------------------------------
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....
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--
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* `layout = "LOCAL,BASE,REMOTE / MERGED + BASE,LOCAL + BASE,REMOTE + (LOCAL/BASE/REMOTE),MERGED"`
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+
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--
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Same as the previous example, but adds a fourth tab with the same
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information as the first tab, with a different layout.
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....
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---------------------------------------------
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| TAB #1 | TAB #2 | TAB #3 | <TAB #4> |
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---------------------------------------------
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| LOCAL | |
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|---------------------| |
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| BASE | MERGED |
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|---------------------| |
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| REMOTE | |
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---------------------------------------------
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....
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Note how in the third tab definition we need to use parentheses to make `,`
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have precedence over `/`.
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--
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Variants
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^^^^^^^^
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Instead of `--tool=vimdiff`, you can also use one of these other variants:
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* `--tool=gvimdiff`, to open gVim instead of Vim.
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* `--tool=nvimdiff`, to open Neovim instead of Vim.
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When using these variants, in order to specify a custom layout you will have to
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set configuration variables `mergetool.gvimdiff.layout` and
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`mergetool.nvimdiff.layout` instead of `mergetool.vimdiff.layout` (though the
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latter will be used as fallback if the variant-specific one is not set).
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In addition, for backwards compatibility with previous Git versions, you can
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also append `1`, `2` or `3` to either `vimdiff` or any of the variants (ex:
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`vimdiff3`, `nvimdiff1`, etc...) to use a predefined layout.
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In other words, using `--tool=[g,n,]vimdiffx` is the same as using
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`--tool=[g,n,]vimdiff` and setting configuration variable
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`mergetool.[g,n,]vimdiff.layout` to...
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* `x=1`: `"@LOCAL, REMOTE"`
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* `x=2`: `"LOCAL, MERGED, REMOTE"`
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* `x=3`: `"MERGED"`
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Example: using `--tool=gvimdiff2` will open `gvim` with three columns (LOCAL,
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MERGED and REMOTE).
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