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Shell: Support HISTFILE environment variable

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This allows changing the Shell's history file path.
This commit is contained in:
Linus Groh 2020-10-25 23:29:37 +00:00 • committed by Andreas Kling
parent b2e4fe1299
commit 4a4b1b1131
2 changed files with 10 additions and 7 deletions
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10
Base/usr/share/man/man7/Shell-vars.md
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@ -15,10 +15,16 @@ Such variables can be changed or set by the user to tweak how the shell presents
The value of this variable is used to join lists or split strings into lists, its default value is a newline (`\\n`). The value of this variable is used to join lists or split strings into lists, its default value is a newline (`\\n`).
2. History
`HISTFILE` (environment)
The value of this variable is used as the Shell's history file path, both for reading history at startup and writing history on exit.
Its default value is `~/.history`.
## Visual ## Visual
2. Prompting 1. Prompting
`PROMPT` (environment) `PROMPT` (environment)
@ -30,8 +36,6 @@ The value of this variable is used to generate a prompt, the following escape se
Any other escaped character shall be ignored. Any other escaped character shall be ignored.
`PROMPT_EOL_MARK` (environment) `PROMPT_EOL_MARK` (environment)
The value of this variable is used to denote the ends of partial lines (lines with no newline), its default value is '%'. The value of this variable is used to denote the ends of partial lines (lines with no newline), its default value is '%'.

7
Shell/Shell.cpp
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@ -960,10 +960,9 @@ void Shell::block_on_job(RefPtr<Job> job)
String Shell::get_history_path() String Shell::get_history_path()
{ {
StringBuilder builder; if (auto histfile = getenv("HISTFILE"))
builder.append(home); return { histfile };
builder.append("/.history"); return String::formatted("{}/.history", home);
return builder.to_string();
} }
String Shell::escape_token(const String& token) String Shell::escape_token(const String& token)