Ticket #231: 0001-Start-on-fish-Friendly-Interactive-SHell-support.2.patch

File 0001-Start-on-fish-Friendly-Interactive-SHell-support.2.patch, 3.2 KB (added by pekdon, 15 years ago)

Patch for fish shell support

  • src/subshell.c 

    From 2bacbf6257f7b5abf833cdeaa7e28cb7a327df5b Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Claes=20N=C3=A4st=C3=A9n?= <me@pekdon.net>
Date: Sun, 1 Feb 2009 16:53:51 +0100
Subject: [PATCH] Start on fish (Friendly Interactive SHell) support.

This code seems to be working good enough to give commands with fish,
however the prompt display is somewhat broken but that happens with bash
as well.
---
 src/subshell.c |   32 ++++++++++++++++++++++++++------
 1 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/src/subshell.c b/src/subshell.c
index 99cf28c..155413b 100644
    a b static pid_t subshell_pid = 1; /* The subshell's process ID */ 
    127127static char subshell_cwd[MC_MAXPATHLEN+1];  /* One extra char for final '\n' */ 
    128128 
    129129/* Subshell type (gleaned from the SHELL environment variable, if available) */ 
    130 static enum {BASH, TCSH, ZSH} subshell_type; 
     130static enum {BASH, TCSH, ZSH, FISH} subshell_type; 
    131131 
    132132/* Flag to indicate whether the subshell is ready for next command */ 
    133133static int subshell_ready; 
    … … init_subshell_child (const char *pty_name) 
    251251        /* TODO: Find a way to pass initfile to TCSH and ZSH */ 
    252252    case TCSH: 
    253253    case ZSH: 
     254    case FISH: 
    254255        break; 
    255256 
    256257    default: 
    … … init_subshell_child (const char *pty_name) 
    295296        execl (shell, "zsh", "-Z", "-g", (char *) NULL); 
    296297 
    297298        break; 
     299    case FISH: 
     300        execl (shell, "fish", (char *) NULL); 
     301        break; 
     302         
    298303    } 
    299304 
    300305    /* If we get this far, everything failed miserably */ 
    … … init_subshell (void) 
    388393            subshell_type = TCSH; 
    389394        else if (strstr (shell, "/bash") || getenv ("BASH")) 
    390395            subshell_type = BASH; 
     396        else if (strstr (shell, "/fish")) 
     397            subshell_type = FISH; 
    391398        else { 
    392399            use_subshell = FALSE; 
    393400            return; 
    … … init_subshell (void) 
    485492                    "alias precmd 'echo $cwd:q >>%s;kill -STOP $$'\n", 
    486493                    tcsh_fifo); 
    487494        break; 
     495    case FISH: 
     496        g_snprintf (precmd, sizeof (precmd), 
     497                    "function fish_prompt ; pwd>&%d;kill -STOP %%self; end\n", 
     498                    subshell_pipe[WRITE], subshell_pipe[WRITE]); 
     499        break; 
     500 
    488501    } 
    489502    write_all (subshell_pty, precmd, strlen (precmd)); 
    490503 
    … … static char * 
    700713subshell_name_quote (const char *s) 
    701714{ 
    702715    char *ret, *d; 
    703     const char quote_cmd_start[] = "\"`printf \"%b\" '"; 
    704     const char quote_cmd_end[] = "'`\""; 
     716    const char *quote_cmd_start, *quote_cmd_end; 
     717 
     718    if (subshell_type == FISH) { 
     719         quote_cmd_start = "(printf \"%b\" '"; 
     720         quote_cmd_end = "')"; 
     721    } else { 
     722         quote_cmd_start = "\"`printf \"%b\" '"; 
     723         quote_cmd_end = "'`\""; 
     724    } 
    705725 
    706726    /* Factor 5 because we need \, 0 and 3 other digits per character. */ 
    707     d = ret = g_malloc (1 + (5 * strlen (s)) + (sizeof(quote_cmd_start) - 1) 
    708                                 + (sizeof(quote_cmd_end) - 1)); 
     727    d = ret = g_malloc (1 + (5 * strlen (s)) + (strlen(quote_cmd_start)) 
     728                                + (strlen(quote_cmd_end))); 
    709729    if (!d) 
    710730        return NULL; 
    711731 
    … … subshell_name_quote (const char *s) 
    717737 
    718738    /* Copy the beginning of the command to the buffer */ 
    719739    strcpy (d, quote_cmd_start); 
    720     d += sizeof(quote_cmd_start) - 1; 
     740    d += strlen(quote_cmd_start); 
    721741 
    722742    /* 
    723743     * Print every character except digits and letters as a backslash-escape