fix: check tmpfs has enough available space

README.md

@@ -9,7 +9,7 @@ in a Deno-compatible `.ts` or `.js` file, to make it standalone self-executable:
 
 ```typescript
 #!/bin/sh
-// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ ! h findmnt&&echo "${TMPDIR:-/tmp}"&&return;d="$(for i in $(findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|cut -d\  -f2);do [ -d "$i" ] && echo "$i" && break || :;done)";echo "${d:-"${TMPDIR:-/tmp}"}";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;exec deno run $A "$0" "$@"
+// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ if h findmnt;then findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|while IFS=$'\n\t ' read -r a m;do [ "$a" -ge 150000000 ]&&[ -d "$m" ]&&printf %s "$m"&&return||:;done;fi;printf %s "${TMPDIR:-/tmp}";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;exec deno run $A "$0" "$@"
 ```
 
 It automatically downloads a correct version of the single
@@ -38,7 +38,7 @@ Copy/paste this two-liner, into the beginning of your TypeScript file:
 
 ```typescript
 #!/bin/sh
-// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ ! h findmnt&&echo "${TMPDIR:-/tmp}"&&return;d="$(for i in $(findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|cut -d\  -f2);do [ -d "$i" ] && echo "$i" && break || :;done)";echo "${d:-"${TMPDIR:-/tmp}"}";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;exec deno run $A "$0" "$@"
+// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ if h findmnt;then findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|while IFS=$'\n\t ' read -r a m;do [ "$a" -ge 150000000 ]&&[ -d "$m" ]&&printf %s "$m"&&return||:;done;fi;printf %s "${TMPDIR:-/tmp}";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;exec deno run $A "$0" "$@"
 ```
 
 ### Step 2: `chmod` it
@@ -95,7 +95,7 @@ script into `sh`:
 
 ```typescript
 #!/bin/sh
-// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ ! h findmnt&&echo "${TMPDIR:-/tmp}"&&return;d="$(for i in $(findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|cut -d\  -f2);do [ -d "$i" ] && echo "$i" && break || :;done)";echo "${d:-"${TMPDIR:-/tmp}"}";};z(){ m="$(command -v "$0"||true)";l="/* 2>/dev/null";! [ -z "$m" ]&&[ -r "$m" ]&&[ "$(head -c3 "$m")" = '#!/' ]&&(read x && read y &&[ "$x" = "#!/bin/sh" ]&&[ "$l" != "${y%"$l"*}" ])<"$m";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;z&&exec deno run $A "$0" "$@";exec deno run $A - "$@"<<'//🔚'
+// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ if h findmnt;then findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|while IFS=$'\n\t ' read -r a m;do [ "$a" -ge 150000000 ]&&[ -d "$m" ]&&printf %s "$m"&&return||:;done;fi;printf %s "${TMPDIR:-/tmp}";};z(){ m="$(command -v "$0"||true)";l="/* 2>/dev/null";! [ -z "$m" ]&&[ -r "$m" ]&&[ "$(head -c3 "$m")" = '#!/' ]&&(read x && read y &&[ "$x" = "#!/bin/sh" ]&&[ "$l" != "${y%"$l"*}" ])<"$m";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;z&&exec deno run $A "$0" "$@";exec deno run $A - "$@"<<'//🔚'
 ```
 
 Using this, you can run both run the script normally from a file, or directly

example

@@ -66,18 +66,18 @@ DENO_VERSION_RANGE_URL_ENCODED="$(uri_encode "${DENO_VERSION_RANGE}")"
 DEFAULT_DENO="$(does_deno_work "$(command -v deno)" ||:)"
 
 get_tmp_dir() {
-  if ! has_command findmnt; then
-    echo "${TMPDIR:-/tmp}"
-    return
+  # for each tmpfs filesystem, sort by available space. for each line, read available space and target mount point, filtering out any trailing whitespace from each variable. if the available bytes is at least 150000000, check if the mount point is a directory. if so, use it.
+  if has_command findmnt; then
+    findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET | sort -rn | \
+    while IFS=$'\n\t ' read -r avail target; do
+      if [ "${avail}" -ge 150000000 ] && [ -d "${target}" ]; then
+        printf "%s" "${target}"
+        return
+      fi
+    done
   fi
-  tmpfss="$(findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET | sort -rn | cut -d\  -f2)"
-  for tmpfs in "${tmpfss}"; do
-    if [ -d "${tmpfs}" ]; then
-      echo "${tmpfs}"
-      return
-    fi
-  done
-  echo "${TMPDIR:-/tmp}"
+
+  printf "%s" "${TMPDIR:-/tmp}"
 }
 
 does_deno_on_path_satisfy() {

example-piped

@@ -66,18 +66,18 @@ DENO_VERSION_RANGE_URL_ENCODED="$(uri_encode "${DENO_VERSION_RANGE}")"
 DEFAULT_DENO="$(does_deno_work "$(command -v deno)" ||:)"
 
 get_tmp_dir() {
-  if ! has_command findmnt; then
-    echo "${TMPDIR:-/tmp}"
-    return
+  # for each tmpfs filesystem, sort by available space. for each line, read available space and target mount point, filtering out any trailing whitespace from each variable. if the available bytes is at least 150000000, check if the mount point is a directory. if so, use it.
+  if has_command findmnt; then
+    findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET | sort -rn | \
+    while IFS=$'\n\t ' read -r avail target; do
+      if [ "${avail}" -ge 150000000 ] && [ -d "${target}" ]; then
+        printf "%s" "${target}"
+        return
+      fi
+    done
   fi
-  tmpfss="$(findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET | sort -rn | cut -d\  -f2)"
-  for tmpfs in "${tmpfss}"; do
-    if [ -d "${tmpfs}" ]; then
-      echo "${tmpfs}"
-      return
-    fi
-  done
-  echo "${TMPDIR:-/tmp}"
+
+  printf "%s" "${TMPDIR:-/tmp}"
 }
 
 is_run_from_file(){

example-piped.min

@@ -1,5 +1,5 @@
 #!/bin/sh
-// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ ! h findmnt&&echo "${TMPDIR:-/tmp}"&&return;d="$(for i in $(findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|cut -d\  -f2);do [ -d "$i" ] && echo "$i" && break || :;done)";echo "${d:-"${TMPDIR:-/tmp}"}";};z(){ m="$(command -v "$0"||true)";l="/* 2>/dev/null";! [ -z "$m" ]&&[ -r "$m" ]&&[ "$(head -c3 "$m")" = '#!/' ]&&(read x && read y &&[ "$x" = "#!/bin/sh" ]&&[ "$l" != "${y%"$l"*}" ])<"$m";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;z&&exec deno run $A "$0" "$@";exec deno run $A - "$@"<<'//🔚'
+// 2>/dev/null;DENO_VERSION_RANGE="^1.42.0";DENO_RUN_ARGS="";set -e;V="$DENO_VERSION_RANGE";A="$DENO_RUN_ARGS";h(){ [ -x "$(command -v "$1" 2>&1)" ];};g(){ u="$([ "$(id -u)" != 0 ]&&echo sudo||:)";if h brew;then echo "brew install $1";elif h apt;then echo "($u apt update && $u DEBIAN_FRONTEND=noninteractive apt install -y $1)";elif h yum;then echo "$u yum install -y $1";elif h pacman;then echo "$u pacman -yS --noconfirm $1";elif h opkg-install;then echo "$u opkg-install $1";fi;};p(){ q="$(g "$1")";if [ -z "$q" ];then echo "Please install '$1' manually, then try again.">&2;exit 1;fi;eval "o=\"\$(set +o)\";set -x;$q;set +x;eval \"\$o\"">&2;};f(){ h "$1"||p "$1";};w(){ [ -n "$1" ] && "$1" -V >/dev/null 2>&1;};U="$(l=$(printf "%s" "$V"|wc -c);for i in $(seq 1 $l);do c=$(printf "%s" "$V"|cut -c $i);printf '%%%02X' "'$c";done)";D="$(w "$(command -v deno||:)"||:)";t(){ if h findmnt;then findmnt -Ononoexec,noro -ttmpfs -nboAVAIL,TARGET|sort -rn|while IFS=$'\n\t ' read -r a m;do [ "$a" -ge 150000000 ]&&[ -d "$m" ]&&printf %s "$m"&&return||:;done;fi;printf %s "${TMPDIR:-/tmp}";};z(){ m="$(command -v "$0"||true)";l="/* 2>/dev/null";! [ -z "$m" ]&&[ -r "$m" ]&&[ "$(head -c3 "$m")" = '#!/' ]&&(read x && read y &&[ "$x" = "#!/bin/sh" ]&&[ "$l" != "${y%"$l"*}" ])<"$m";};s(){ deno eval "import{satisfies as e}from'https://deno.land/x/[email protected]/mod.ts';Deno.exit(e(Deno.version.deno,'$V')?0:1);">/dev/null 2>&1;};e(){ R="$(t)/deno-range-$V/bin";mkdir -p "$R";export PATH="$R:$PATH";s&&return;f curl;v="$(curl -sSfL "https://semver-version.deno.dev/api/github/denoland/deno/$U")";i="$(t)/deno-$v";ln -sf "$i/bin/deno" "$R/deno";s && return;f unzip;([ "${A#*-q}" != "$A" ]&&exec 2>/dev/null;curl -fsSL https://deno.land/install.sh|DENO_INSTALL="$i" sh -s $DENO_INSTALL_ARGS "$v">&2);};e;z&&exec deno run $A "$0" "$@";exec deno run $A - "$@"<<'//🔚'
 import { readAll } from "https://deno.land/[email protected]/io/read_all.ts";
 
 console.log(