2008-07-25 16:28:41 +00:00
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#include "cache.h"
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#include "strbuf.h"
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#include "run-command.h"
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2012-11-30 22:41:26 +00:00
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#include "sigchain.h"
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2008-07-25 16:28:41 +00:00
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2009-10-31 01:44:41 +00:00
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#ifndef DEFAULT_EDITOR
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#define DEFAULT_EDITOR "vi"
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#endif
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2009-11-12 00:01:27 +00:00
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const char *git_editor(void)
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2008-07-25 16:28:41 +00:00
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{
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Do not use VISUAL editor on dumb terminals
Refuse to use $VISUAL and fall back to $EDITOR if TERM is unset
or set to "dumb". Traditionally, VISUAL is set to a screen
editor and EDITOR to a line-based editor, which should be more
useful in that situation.
vim, for example, is happy to assume a terminal supports ANSI
sequences even if TERM is dumb (e.g., when running from a text
editor like Acme). git already refuses to fall back to vi on a
dumb terminal if GIT_EDITOR, core.editor, VISUAL, and EDITOR are
unset, but without this patch, that check is suppressed by
VISUAL=vi.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-11 23:56:07 +00:00
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const char *editor = getenv("GIT_EDITOR");
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const char *terminal = getenv("TERM");
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int terminal_is_dumb = !terminal || !strcmp(terminal, "dumb");
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2008-07-25 16:28:41 +00:00
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if (!editor && editor_program)
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editor = editor_program;
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Do not use VISUAL editor on dumb terminals
Refuse to use $VISUAL and fall back to $EDITOR if TERM is unset
or set to "dumb". Traditionally, VISUAL is set to a screen
editor and EDITOR to a line-based editor, which should be more
useful in that situation.
vim, for example, is happy to assume a terminal supports ANSI
sequences even if TERM is dumb (e.g., when running from a text
editor like Acme). git already refuses to fall back to vi on a
dumb terminal if GIT_EDITOR, core.editor, VISUAL, and EDITOR are
unset, but without this patch, that check is suppressed by
VISUAL=vi.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-11 23:56:07 +00:00
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if (!editor && !terminal_is_dumb)
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2008-07-25 16:28:41 +00:00
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editor = getenv("VISUAL");
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if (!editor)
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editor = getenv("EDITOR");
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Do not use VISUAL editor on dumb terminals
Refuse to use $VISUAL and fall back to $EDITOR if TERM is unset
or set to "dumb". Traditionally, VISUAL is set to a screen
editor and EDITOR to a line-based editor, which should be more
useful in that situation.
vim, for example, is happy to assume a terminal supports ANSI
sequences even if TERM is dumb (e.g., when running from a text
editor like Acme). git already refuses to fall back to vi on a
dumb terminal if GIT_EDITOR, core.editor, VISUAL, and EDITOR are
unset, but without this patch, that check is suppressed by
VISUAL=vi.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-11 23:56:07 +00:00
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if (!editor && terminal_is_dumb)
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2009-11-12 00:01:27 +00:00
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return NULL;
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2008-07-25 16:28:41 +00:00
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if (!editor)
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2009-10-31 01:44:41 +00:00
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editor = DEFAULT_EDITOR;
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2008-07-25 16:28:41 +00:00
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2009-11-12 00:01:27 +00:00
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return editor;
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}
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int launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
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{
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const char *editor = git_editor();
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if (!editor)
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return error("Terminal is dumb, but EDITOR unset");
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2008-07-25 16:28:41 +00:00
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if (strcmp(editor, ":")) {
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2009-12-30 10:56:16 +00:00
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const char *args[] = { editor, path, NULL };
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2012-11-30 22:41:04 +00:00
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struct child_process p;
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2012-11-30 22:41:26 +00:00
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int ret;
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2008-07-25 16:28:41 +00:00
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2012-11-30 22:41:04 +00:00
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memset(&p, 0, sizeof(p));
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p.argv = args;
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p.env = env;
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p.use_shell = 1;
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if (start_command(&p) < 0)
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return error("unable to start editor '%s'", editor);
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2012-11-30 22:41:26 +00:00
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sigchain_push(SIGINT, SIG_IGN);
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sigchain_push(SIGQUIT, SIG_IGN);
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ret = finish_command(&p);
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sigchain_pop(SIGINT);
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sigchain_pop(SIGQUIT);
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if (ret)
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2008-07-25 16:28:42 +00:00
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return error("There was a problem with the editor '%s'.",
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editor);
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2008-07-25 16:28:41 +00:00
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}
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if (!buffer)
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2008-07-25 16:28:42 +00:00
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return 0;
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2008-07-25 16:28:41 +00:00
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if (strbuf_read_file(buffer, path, 0) < 0)
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2008-07-25 16:28:42 +00:00
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return error("could not read file '%s': %s",
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path, strerror(errno));
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return 0;
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2008-07-25 16:28:41 +00:00
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}
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