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68 lines
1.5 KiB
68 lines
1.5 KiB
#include "cache.h" |
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#include "strbuf.h" |
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#include "run-command.h" |
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#include "sigchain.h" |
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#ifndef DEFAULT_EDITOR |
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#define DEFAULT_EDITOR "vi" |
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#endif |
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const char *git_editor(void) |
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{ |
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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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if (!editor && editor_program) |
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editor = editor_program; |
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if (!editor && !terminal_is_dumb) |
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editor = getenv("VISUAL"); |
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if (!editor) |
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editor = getenv("EDITOR"); |
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if (!editor && terminal_is_dumb) |
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return NULL; |
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if (!editor) |
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editor = DEFAULT_EDITOR; |
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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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if (strcmp(editor, ":")) { |
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const char *args[] = { editor, real_path(path), NULL }; |
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struct child_process p = CHILD_PROCESS_INIT; |
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int ret, sig; |
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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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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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sig = ret - 128; |
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sigchain_pop(SIGINT); |
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sigchain_pop(SIGQUIT); |
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if (sig == SIGINT || sig == SIGQUIT) |
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raise(sig); |
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if (ret) |
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return error("There was a problem with the editor '%s'.", |
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editor); |
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} |
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if (!buffer) |
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return 0; |
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if (strbuf_read_file(buffer, path, 0) < 0) |
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return error_errno("could not read file '%s'", path); |
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return 0; |
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}
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