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allow specification of tail parameter in stfu

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This commit is contained in:
Connor Olding 2021-08-02 21:47:34 -07:00
parent 73b08af330
commit f640fbb4b0
1 changed files with 16 additions and 24 deletions
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40
sh/stfu
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@ -7,39 +7,30 @@ stfu() { ### @-
### **NOTE:** don't use `stfu` for handling sensitive data or commands! ### **NOTE:** don't use `stfu` for handling sensitive data or commands!
### use it for 7zip. ### use it for 7zip.
### ###
### note that the tail commands in the example below are from `stfu` itself;
### they are echoed to reveal the temp paths for any further investigation.
###
### ``` ### ```
### $ touch butts ### $ touch butts
### $ STFU_TAIL=5
### $ stfu 7z a butts.7z butts ### $ stfu 7z a butts.7z butts
### $ stfu 7z a butts.7z asses ### $ stfu 7z a butts.7z asses
### command failed with exit status 1: ### command failed with exit status 1:
### 7z a butts.7z asses ### 7z a butts.7z asses
### ###
### $ tail -n 20 /tmp/stfu/out_1627834220 ### $ tail -n 5 /tmp/stfu.CoJ0vmJsqA/out_1627942118
### Solid = -
### Blocks = 0
###
### Scanning the drive:
### 0 files, 0 bytes
###
### Updating archive: butts.7z
###
### Keep old data in archive: 1 file, 0 bytes
### Add new data to archive: 0 files, 0 bytes
###
###
### Files read from disk: 0
### Archive size: 82 bytes (1 KiB)
###
### Scan WARNINGS for files and folders: ### Scan WARNINGS for files and folders:
### ###
### asses : The system cannot find the file specified. ### asses : The system cannot find the file specified.
### ---------------- ### ----------------
### Scan WARNINGS: 1 ### Scan WARNINGS: 1
### ###
### $ tail -n 20 /tmp/stfu/err_1627834220 ### $ tail -n 5 /tmp/stfu.CoJ0vmJsqA/err_1627942118
### ###
### WARNING: The system cannot find the file specified. ### WARNING: The system cannot find the file specified.
### asses ### asses
###
###
### ``` ### ```
argc -ge 1 "$0" "$@" || return argc -ge 1 "$0" "$@" || return
@ -55,15 +46,16 @@ stfu() { ### @-
local perms="$(stat -c '%a' "$temp")" local perms="$(stat -c '%a' "$temp")"
local realtemp="$(readlink -f "$temp")" local realtemp="$(readlink -f "$temp")"
[ -z "$MSYSTEM" ] || perms=700 # MSYS2 is insecure, oh well. [ -z "$MSYSTEM" ] || perms=700 # MSYS2 is insecure, oh well.
if [ -d "$temp" ] && [ "$realtemp" = "$temp" ] && [ "$perms" = 700 ]; then if [ -d "$temp" ] && [ "$realtemp" = "$temp" ] && [ "$perms" = 700 ]; then
if [ $dirty -ne 0 ]; then if [ $dirty -ne 0 ]; then
export STFU_DIR="$temp" export STFU_DIR="$temp"
fi fi
else else
if [ -n "$STFU_DIR" ]; then if [ -n "$STFU_DIR" ]; then
printf "%s\n" "$0: invalid temporary directory, please unset STFU_DIR" >&2; printf "%s\n" "$0: invalid temporary directory, please unset STFU_DIR" >&2
else else
printf "%s\n" "$0: something went horribly wrong, maybe you can tell?" "$perms" "$realtemp" printf "%s\n" "$0: something went horribly wrong, maybe you can tell?" "$perms" "$realtemp" >&2
fi fi
return 1 return 1
fi fi
@ -84,17 +76,17 @@ stfu() { ### @-
#local err="$(mktemp -t -p "$temp" err_XXXXXX)" #local err="$(mktemp -t -p "$temp" err_XXXXXX)"
#[ $? -eq 0 ] || { printf "%s\n" "$0: failed to create temp file" >&2; return 1; } #[ $? -eq 0 ] || { printf "%s\n" "$0: failed to create temp file" >&2; return 1; }
local ret=0 local ret=0 tail="${STFU_TAIL:-20}"
"$@" > "$out" 2> "$err" || ret=$? "$@" > "$out" 2> "$err" || ret=$?
if [ $ret -ne 0 ]; then if [ $ret -ne 0 ]; then
printf "command failed with exit status %s:\n" $ret >&2 printf "command failed with exit status %s:\n" $ret >&2
echo2 "$@" echo2 "$@"
echo2 echo2
note '$ tail -n 20' "$out" note '$ tail -n' "$tail" "$out"
tail -n 20 "$out" >&2 tail -n "$tail" "$out" >&2
echo2 echo2
note '$ tail -n 20' "$err" note '$ tail -n' "$tail" "$err"
tail -n 20 "$err" >&2 tail -n "$tail" "$err" >&2
fi fi
return $ret return $ret
} }