How to execute multiple commands in the same node child process?
I want to be able to run the following 2 bash commands within my node child process
pushd ${directory} && git stash
Then based on the output, either;
git pull origin master
or
git pull origin master && git stash pop
Then lastly
npm install --prefix ${directory} && popd
The problem is, exec creates a new process for each command, so the next command that gets executed, has no idea about the previous one. For example running popd throws an error as pushd was run in a different process and doesn't know what directory was stashed in that previous command.
I am currently trying this to no avail:
const parentProc = await execSync(`pushd ${directory} && git stash`)
if(parentProc.toString().includes("No local changes to save")){
await execSync("git pull origin master")
}else{
await execSync("git pull origin master && git stash pop")
}
await execSync(`npm install --prefix ${directory} && popd`)
How can I run all these commands in the same process?
javascript node.js bash
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
add a comment |
I want to be able to run the following 2 bash commands within my node child process
pushd ${directory} && git stash
Then based on the output, either;
git pull origin master
or
git pull origin master && git stash pop
Then lastly
npm install --prefix ${directory} && popd
The problem is, exec creates a new process for each command, so the next command that gets executed, has no idea about the previous one. For example running popd throws an error as pushd was run in a different process and doesn't know what directory was stashed in that previous command.
I am currently trying this to no avail:
const parentProc = await execSync(`pushd ${directory} && git stash`)
if(parentProc.toString().includes("No local changes to save")){
await execSync("git pull origin master")
}else{
await execSync("git pull origin master && git stash pop")
}
await execSync(`npm install --prefix ${directory} && popd`)
How can I run all these commands in the same process?
javascript node.js bash
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
you could use cat to pipe the input into the second command
– Joe Warner
Nov 23 '18 at 19:43
I'm assuming you mean capture the output? I've already managed to capture the output of the parentProc. I just want to run the next command within the same process rather than spawning a new child_process which is what happens whenexecSyncis called
– Stretch0
Nov 23 '18 at 19:47
2
Honestly, I'd probably just write a shell script to do it, then exec that script.
– jakerella
Nov 23 '18 at 19:50
and whats the issue with that?
– Joe Warner
Nov 23 '18 at 19:51
add a comment |
I want to be able to run the following 2 bash commands within my node child process
pushd ${directory} && git stash
Then based on the output, either;
git pull origin master
or
git pull origin master && git stash pop
Then lastly
npm install --prefix ${directory} && popd
The problem is, exec creates a new process for each command, so the next command that gets executed, has no idea about the previous one. For example running popd throws an error as pushd was run in a different process and doesn't know what directory was stashed in that previous command.
I am currently trying this to no avail:
const parentProc = await execSync(`pushd ${directory} && git stash`)
if(parentProc.toString().includes("No local changes to save")){
await execSync("git pull origin master")
}else{
await execSync("git pull origin master && git stash pop")
}
await execSync(`npm install --prefix ${directory} && popd`)
How can I run all these commands in the same process?
javascript node.js bash
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
I want to be able to run the following 2 bash commands within my node child process
pushd ${directory} && git stash
Then based on the output, either;
git pull origin master
or
git pull origin master && git stash pop
Then lastly
npm install --prefix ${directory} && popd
The problem is, exec creates a new process for each command, so the next command that gets executed, has no idea about the previous one. For example running popd throws an error as pushd was run in a different process and doesn't know what directory was stashed in that previous command.
I am currently trying this to no avail:
const parentProc = await execSync(`pushd ${directory} && git stash`)
if(parentProc.toString().includes("No local changes to save")){
await execSync("git pull origin master")
}else{
await execSync("git pull origin master && git stash pop")
}
await execSync(`npm install --prefix ${directory} && popd`)
How can I run all these commands in the same process?
javascript node.js bash
javascript node.js bash
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
asked Nov 23 '18 at 19:31
Stretch0Stretch0
2,2341649
2,2341649
you could use cat to pipe the input into the second command
– Joe Warner
Nov 23 '18 at 19:43
I'm assuming you mean capture the output? I've already managed to capture the output of the parentProc. I just want to run the next command within the same process rather than spawning a new child_process which is what happens whenexecSyncis called
– Stretch0
Nov 23 '18 at 19:47
2
Honestly, I'd probably just write a shell script to do it, then exec that script.
– jakerella
Nov 23 '18 at 19:50
and whats the issue with that?
– Joe Warner
Nov 23 '18 at 19:51
add a comment |
you could use cat to pipe the input into the second command
– Joe Warner
Nov 23 '18 at 19:43
I'm assuming you mean capture the output? I've already managed to capture the output of the parentProc. I just want to run the next command within the same process rather than spawning a new child_process which is what happens whenexecSyncis called
– Stretch0
Nov 23 '18 at 19:47
2
Honestly, I'd probably just write a shell script to do it, then exec that script.
– jakerella
Nov 23 '18 at 19:50
and whats the issue with that?
– Joe Warner
Nov 23 '18 at 19:51
you could use cat to pipe the input into the second command
– Joe Warner
Nov 23 '18 at 19:43
you could use cat to pipe the input into the second command
– Joe Warner
Nov 23 '18 at 19:43
I'm assuming you mean capture the output? I've already managed to capture the output of the parentProc. I just want to run the next command within the same process rather than spawning a new child_process which is what happens when
execSync is called– Stretch0
Nov 23 '18 at 19:47
I'm assuming you mean capture the output? I've already managed to capture the output of the parentProc. I just want to run the next command within the same process rather than spawning a new child_process which is what happens when
execSync is called– Stretch0
Nov 23 '18 at 19:47
2
2
Honestly, I'd probably just write a shell script to do it, then exec that script.
– jakerella
Nov 23 '18 at 19:50
Honestly, I'd probably just write a shell script to do it, then exec that script.
– jakerella
Nov 23 '18 at 19:50
and whats the issue with that?
– Joe Warner
Nov 23 '18 at 19:51
and whats the issue with that?
– Joe Warner
Nov 23 '18 at 19:51
add a comment |
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you could use cat to pipe the input into the second command
– Joe Warner
Nov 23 '18 at 19:43
I'm assuming you mean capture the output? I've already managed to capture the output of the parentProc. I just want to run the next command within the same process rather than spawning a new child_process which is what happens when
execSyncis called– Stretch0
Nov 23 '18 at 19:47
2
Honestly, I'd probably just write a shell script to do it, then exec that script.
– jakerella
Nov 23 '18 at 19:50
and whats the issue with that?
– Joe Warner
Nov 23 '18 at 19:51