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Add a user config for using git's external diff command for paging

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This is similar to using lazygit's Git.Paging.ExternalDiffCommand config, except
that the command is configured in git. This can be done either with git's
`diff.external` config, or through .gitattributes, so it gives a bit more
flexibility.
This commit is contained in:
Stefan Haller
2025-08-18 09:20:10 +02:00
parent 86934ce1af
commit 40e989467f
10 changed files with 52 additions and 5 deletions
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3
pkg/commands/git_commands/diff.go
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@@ -21,13 +21,14 @@ func NewDiffCommands(gitCommon *GitCommon) *DiffCommands {
func (self *DiffCommands) DiffCmdObj(diffArgs []string) *oscommands.CmdObj {
extDiffCmd := self.UserConfig().Git.Paging.ExternalDiffCommand
useExtDiff := extDiffCmd != ""
useExtDiffGitConfig := self.UserConfig().Git.Paging.UseExternalDiffGitConfig
ignoreWhitespace := self.UserConfig().Git.IgnoreWhitespaceInDiffView
return self.cmd.New(
NewGitCmd("diff").
Config("diff.noprefix=false").
ConfigIf(useExtDiff, "diff.external="+extDiffCmd).
ArgIfElse(useExtDiff, "--ext-diff", "--no-ext-diff").
ArgIfElse(useExtDiff || useExtDiffGitConfig, "--ext-diff", "--no-ext-diff").
Arg("--submodule").
Arg(fmt.Sprintf("--color=%s", self.UserConfig().Git.Paging.ColorArg)).
ArgIf(ignoreWhitespace, "--ignore-all-space").