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762f3aa0ce
* Rewrite the real file if history file is a symlink When the history file is a symbolic link, `fish` used to overwrite the link with a real file whenever it saved history. This makes it follow the symlink and overwrite the real file instead. The same issue was fixed for the `fish_variables` file in622f2868efrom https://github.com/fish-shell/fish-shell/pull/7728. This makes `fish_history` behave in the same way. The implementation is nearly identical. Since the tests for the two issues are so similar, I combined them together and slightly expanded the older test. This also addresses https://github.com/fish-shell/fish-shell/issues/7553. * Add user-facing error when history renaming fails Currently, when history file renaming fails, no message is shown to the user. This happens, for instance, if the history file is a symlink pointing to another filesystem. This copies code (with a bit of variation, after reviewer comments) from589eb34571/src/env_universal_common.cpp (L486-L491)into `history.cpp`, so that a message is shown to the user. * fixup! Rewrite the real file if history file is a symlink
49 lines
1.5 KiB
Fish
49 lines
1.5 KiB
Fish
#RUN: %fish -C 'set -g fish %fish' %s
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set -gx XDG_CONFIG_HOME (mktemp -d)
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set -gx XDG_DATA_HOME $XDG_CONFIG_HOME
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mkdir -p $XDG_CONFIG_HOME/fish
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# fish_variables
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set -l target_file $XDG_CONFIG_HOME/fish/target_fish_variables
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set -l fish_variables $XDG_CONFIG_HOME/fish/fish_variables
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set -l backup_file $XDG_CONFIG_HOME/fish/fish_variables_backup
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echo >$target_file
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cp $target_file $backup_file
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ln -sf $target_file $fish_variables
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$fish -c 'set -U variable value'
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if not test -L $fish_variables
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echo fish_variables has been overwritten
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else if cmp $target_file $backup_file >/dev/null
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echo fish_variables was never written
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else
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echo fish_variables is still a symlink
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end
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# CHECK: fish_variables is still a symlink
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# fish_history
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set -l history_file $XDG_DATA_HOME/fish/fish_history
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set -l target_file $XDG_DATA_HOME/fish/target_fish_history
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set -l backup_file $XDG_DATA_HOME/fish/fish_history_backup
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echo '- cmd: echo I will be deleted from history
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when: 1614577746' >$target_file
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cp $target_file $backup_file
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ln -sf $target_file $history_file
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# The one way to ensure non-interactive fish writes to the history file
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$fish -c 'echo all | history delete deleted | grep echo'
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# CHECK: [1] echo I will be deleted from history
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if not test -L $history_file
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echo fish_history has been overwritten
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else if cmp $target_file $backup_file &>/dev/null
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# cmp writes to stderr when one file is empty, thus &> above
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echo fish_history was never written
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else
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echo fish_history is still a symlink
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end
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# CHECK: fish_history is still a symlink
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