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37 Fri, 11 Nov 2011 00:41:22 -0800 (PST)
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38 From: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
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39 To: Tomi Ollila <tomi.ollila@iki.fi>, Notmuch Mail <notmuch@notmuchmail.org>
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40 Subject: Re: [PATCH] test: use dtach(1) instead of screen(1) in emacs tests.
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41 In-Reply-To: <1320963737-1666-1-git-send-email-jrollins@finestructure.net>
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42 References: <yf6mxc3ab4t.fsf@taco2.nixu.fi>
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43 <1320963737-1666-1-git-send-email-jrollins@finestructure.net>
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44 User-Agent: Notmuch/0.9+55~g81c615b (http://notmuchmail.org) Emacs/23.3.1
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45 (x86_64-pc-linux-gnu)
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46 Date: Fri, 11 Nov 2011 12:41:11 +0400
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66 On Thu, 10 Nov 2011 14:22:17 -0800, Jameson Graef Rollins <jrollins@finestructure.net> wrote:
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67 > From: Tomi Ollila <tomi.ollila@iki.fi>
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69 > dtach is lighter than screen and is not setuid/setgid program so
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70 > TMPDIR does not get reset by dynamic loader when executed.
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72 > Signed-off-by: Jameson Graef Rollins <jrollins@finestructure.net>
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74 > This tweaks the original patch slightly by removing the no-longer needed
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75 > screenrc variables.
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77 > test/test-lib.sh | 5 ++---
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78 > 1 files changed, 2 insertions(+), 3 deletions(-)
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80 > diff --git a/test/test-lib.sh b/test/test-lib.sh
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81 > index c81c709..c0fe037 100755
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82 > --- a/test/test-lib.sh
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83 > +++ b/test/test-lib.sh
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84 > @@ -50,8 +50,6 @@ TZ=UTC
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86 > export LANG LC_ALL PAGER TERM TZ
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87 > GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
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88 > -export SCREENRC=/dev/null
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89 > -export SYSSCREENRC=/dev/null
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91 > # Protect ourselves from common misconfiguration to export
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92 > # CDPATH into the environment
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93 > @@ -844,7 +842,8 @@ test_emacs () {
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94 > if [ -z "$EMACS_SERVER" ]; then
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95 > EMACS_SERVER="notmuch-test-suite-$$"
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96 > # start a detached screen session with an emacs server
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97 > - screen -S "$EMACS_SERVER" -d -m "$TMP_DIRECTORY/run_emacs" \
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98 > + TERM=xterm dtach -n "$TMP_DIRECTORY/dtach-emacs-socket-$$" \
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100 Can you please give a more detailed explanation (and a comment) to
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101 justify this workaround:
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103 * Is it actually needed for dtach or emacs? If it is the latter, then
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104 it should be "dtach ... env TERM=xterm emacs ...", right?
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106 * Why should we care about systems that use terminals without
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107 corresponding terminfo installed?
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109 * Why is it safe to use xterm? Is there any standard that requires
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110 xterm info to be present on the system?
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112 I have tried running dtach with emacs in rxvt-unicode and it worked fine
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113 without overriding TERM.
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115 I have also tried running dtach with invalid TERM:
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117 $ TERM=non-existing-term dtach -n s /bin/sh
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118 zsh: can't find terminal definition for non-existing-term
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120 No segfault, shell is started fine.
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122 But emacs does not work without a valid terminfo:
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124 $ TERM=non-existing-term emacs -nw
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125 emacs: Terminal type non-existing-term is not defined.
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126 If that is not the actual type of terminal you have,
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127 use the Bourne shell command `TERM=... export TERM' (C-shell:
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128 `setenv TERM ...') to specify the correct type. It may be necessary
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129 to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.
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134 > + "$TMP_DIRECTORY/run_emacs" \
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135 > --no-window-system \
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136 > --eval "(setq server-name \"$EMACS_SERVER\")" \
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137 > --eval '(server-start)' \
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141 > _______________________________________________
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142 > notmuch mailing list
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143 > notmuch@notmuchmail.org
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144 > http://notmuchmail.org/mailman/listinfo/notmuch
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